TW201226458A - Method for forming foaming product and system thereof - Google Patents

Method for forming foaming product and system thereof Download PDF

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TW201226458A
TW201226458A TW99145967A TW99145967A TW201226458A TW 201226458 A TW201226458 A TW 201226458A TW 99145967 A TW99145967 A TW 99145967A TW 99145967 A TW99145967 A TW 99145967A TW 201226458 A TW201226458 A TW 201226458A
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pressure
liquid
phase solution
polymer
cylinder
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TW99145967A
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TWI435905B (en
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Wei-Ting Lu
xiao-ting Lu
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Union Plastic Hangzhu Machinery Co Ltd
xiao-ting Lu
Wei-Ting Lu
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Abstract

The present invention provides a method and a system for separating the introduction operation of a foaming agent and the formation operation of a single phase solution. The system is designed to transport the polymeric material from a mold cavity of an inlet at the upstream of a polymer processing space through a selectable pathway and be connected to the terminal outlet at the downstream. In addition, the foaming agent, which is gaseous under ambient condition, is introduced into the polymeric material, and the polymeric material is used to form the foaming product. When the polymeric material is transported from the upstream of the polymer processing space to a selected pathway of the selectable pathways, the polymeric material is stopped from being transported from the selected pathway to the downstream connected with the selected pathway.

Description

201226458 六、發明說明: 【發明所屬之技術領域】 [0001] 本發明涉及一種形成發泡產品的方法及其系統。 【先前技術】 [0002] 化學發泡劑或物理發泡劑之一與炫融聚合物母體混201226458 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a method of forming a foamed product and a system therefor. [Prior Art] [0002] One of a chemical foaming agent or a physical foaming agent is mixed with a smelting polymer matrix

合,可製造聚合物的發泡產品。例如使用般是低分子 量有機化合物的化學發泡劑與熔融聚合物浪合’並加熱 至一臨界溫度上釋放至少一種氣體,以製造聚合物的發 泡產品。而物理發泡劑在大氣環境下基本上為氣體’在 加工過程中被引入與炼融聚合物混合’或在壓力下成為 聚合物蘊含的〆種成份’以製造聚合物的發泡產品°早 期發泡技術製造的聚合物發泡產品常具有相對大的空隙 或氣室,亦即,其氣室尺寸大於100微米,且在發泡產品 中有非一致的氟室尺寸分佈與較低的氣室密度。 為了獲得更強健與更輕的發泡產品,而有各種獲得 更小氣室尺寸與更高氣室密度的發泡歲舊加工技術被揭 露。有研究表明’為降低氣室尺寸與增加氛室密度,混 合熔融聚合物與物質的超臨界流體狀態,形成一相互溶 解的單相溶液’而後在單相溶液上引起熱力學的不穩定 ,以誘導其氣室成核發生。已知傳統上,各種發泡加工 技術以引起單相溶液上的熱力學不穩定,獲得發泡產品 。例如’擠塑、注塑、模塑之類的發泡加工技術。 其中,單相;谷液上的成核作用,可視為:超臨界流 體的分子進入在聚合物中帶有清楚分界的穩定氣穴的族 099145967 群轉變。 透過引起熱力學的不穩定,在一單相溶液上取得一 表單編號A0I01 第3頁/共62頁 0992079096-0 201226458 極円比率的氣室成核作用’是獲得高氣室密度的關鍵之 I。對弓丨起一熱力學的不穩定,可透過迅速改變壓力、 溫度或兩者。因在-溶《合物⑽超臨界流體的溶解 度,隨壓力和溫度而變。在古典成核作用理論中,氣室 成核作用率將隨壓降速率的增加而增如。 四此,透過使 單相溶液遭受-迅速壓降,促進—高氣室成核作用比率 理想上,希望壓降瞬間產生,但這是不可能的。實 際上,壓降必須經過-有限的時間段。越更迅速的壓降 引起更大賴力學不穩定,使越更大數量的氣室被成核 :而微孔材料上的更高氣室密纟,-般對應至更小氣室 尺寸。 在一些研究中揭示超臨界流體在單相溶液内的最大 可溶總數量,取決施加於單相溶液上的工作壓力和溫度 。例如:在相同溫度下更高壓力可促進超臨界流體= 大最大可溶總數量。而且,:在相同的屋力和溫度條件下 的單相溶液’在相同成核條弈下,當箪相溶液中含較少 的發泡劑溶解度時,所生翻聚搞發泡產品中氣 度也較少。 论 一因而,熔融聚合物中超臨界流體的高溶解度,是獲 得高氣室密度的另—關鍵。In combination, a foamed product of a polymer can be produced. For example, a chemical foaming agent such as a low molecular weight organic compound is used in combination with a molten polymer and heated to a critical temperature to release at least one gas to produce a foamed product of the polymer. In the atmospheric environment, the physical foaming agent is basically a gas which is introduced into the process of mixing with the smelting polymer during the processing process or becomes a polymer-containing sputum component under pressure to manufacture a foamed product of the polymer. Polymer foamed products made by foaming technology often have relatively large voids or gas chambers, that is, their cell sizes are greater than 100 microns, and there is a non-uniform fluorine cell size distribution and lower gas in the foamed product. Room density. In order to obtain a stronger and lighter foaming product, various foaming old processing techniques for obtaining a smaller gas cell size and a higher gas cell density have been disclosed. Studies have shown that 'to reduce the size of the chamber and increase the density of the chamber, mixing the supercritical fluid state of the molten polymer with the substance to form a mutually dissolved single-phase solution' and then causing thermodynamic instability on the single-phase solution to induce Its gas chamber nucleation occurs. Conventionally, various foaming techniques have been used to cause thermodynamic instability on a single phase solution to obtain a foamed product. For example, foaming processing techniques such as extrusion molding, injection molding, and molding. Among them, single phase; nucleation on the valley liquid can be regarded as: the supercritical fluid molecules enter the family 099145967 group transition in the polymer with a clearly demarcated stable cavitation. By causing thermodynamic instability, a form number is obtained on a single-phase solution. Form No. A0I01 Page 3 of 62 0992079096-0 201226458 The chamber nucleation of the extreme enthalpy ratio is the key to obtaining high gas chamber density. A thermodynamic instability of the bow can be achieved by rapidly changing the pressure, temperature or both. The solubility of the supercritical fluid in the solution (10) varies with pressure and temperature. In the classical nucleation theory, the nucleation rate of the gas chamber will increase as the pressure drop rate increases. In this way, by exposing the single-phase solution to a rapid pressure drop, the ratio of the high gas chamber nucleation is promoted. Ideally, it is desirable that the pressure drop is instantaneous, but this is not possible. In fact, the pressure drop must pass through a finite period of time. The more rapid pressure drop causes greater mechanical instability, causing a larger number of chambers to be nucleated: the higher chambers on the microporous material are denser, corresponding to smaller cell sizes. The maximum soluble total amount of supercritical fluid in a single phase solution is revealed in some studies, depending on the working pressure and temperature applied to the single phase solution. For example, higher pressures at the same temperature promote supercritical fluids = large maximum soluble totals. Moreover, the single-phase solution under the same house and temperature conditions 'under the same nucleation bar, when the 箪 phase solution contains less foaming agent solubility, the tempering of the foaming product Also less. Therefore, the high solubility of supercritical fluids in molten polymers is another key to achieving high gas cell density.

顯然提高施加在單相溶液上的麼力,可提高聚合物 混合物内超臨界流體的溶解度,及易於獲得更為巨大 塵降速率以提升成核過程中的熱力學不穩定利於提高 發泡產品内的氣室成核數量與獲得更為強健的微孔發Z 099145967 表單編號_1 “頁/共62頁 〇992〇79〇96.〇 201226458 對一傳統發泡成型的播塑技術,基本的發泡聚合物 加工過程,可合併在一擠壓發泡加工過程裡。其中,對 一傳統塑化聚合物顆粒的擠壓機,必要的擠壓發泡加工 過程,基本上由4個物理部件組成。氣體藉由一氣體計量 系統被直接注入擠壓機的該熔融聚合物溪流内。擠壓機 螺桿的混合與使均勻的部分建立該聚合物和氣體的均勻 混合。同時,擠壓機建立想要的高氣體溶解度的壓力以 .. 形成單相溶液。在擠壓機的末端,以一成核作用裝置取 得關鍵成核作用需要的一高成核的作用速率。 〇 對一擠壓發泡加工過程,有時要求一額外擠壓機, 使進入該額外擠壓機的單相溶液可適當冷卻,以利於發 泡產品的泡孔固定。 對注射之類的不連續發泡成型加工過程,常使用一 額外的帶有柱塞的單相溶液蓄積器,在壓擠加工過程中 生產的單相溶液被注射前,在高壓下蓄積足夠注射所需 的單相溶液,而後藉由注射產生瞬間的更大高壓提供更 為巨大的壓降速率。此額外蓄積器常作為注射前的單相 〇 溶液的適當冷卻,以利於泡孔固定。 然而,對注塑之類的不連續發泡加工過程,其工藝 使聚合物材料輸入週期性停頓,而不利於發泡劑與聚合 物的穩定混合比例。例如__當聚合物材料輸入停頓時, 在發泡劑引入口附近的熔融聚合物,因長時間的駐留而 易含有較高劑量的發泡劑,使導致引入的發泡劑在混合 物中的不均勻分佈;此可能使混合物的粘度變動而不利 於生產發泡產品的工藝控制。而且,發泡劑在混合物中 的不均勻分佈,不利於發泡產品的一致性。 099145967 表單編號A0101 第5頁/共62頁 0992079096-0 201226458 為解決注射機構的週期性的塑料輸入停頓而導致發 泡劑在塑料中的不均勻分佈,中國專利第971 1 1 630.X號 公佈了 一種注射發泡成型的熱塑性樹脂產品及其生產方 法,將發泡劑的引入與溶解操作從注射與成型操作中分 離,使擠壓筒内的壓力得到較好的保持,以獲得較穩定 的發泡劑計量,從而得到氣體發泡劑與塑料的穩定混合 比例。實施該方法的例示系統中,包括連接有輸氣裝置 、料斗、加熱裝置的加料筒,加料筒内設有與旋轉驅動 機構連接的螺杆,加料筒的前端分別與兩個出料筒的内 腔連通,作為儲料室的出料筒的内腔與射嘴連通,且有 閥門控制射嘴的打開或關閉,並於射嘴打開時連通儲料 室與模具的模腔。而且,每個出料筒可分別對應一個模 具,或是全部的出料筒同時對應一個模具。其中,加料 筒内的螺桿,一般包括進料、傳輸、發泡劑引入、混合 、與計量部分。 第一圖為上述系統的概要示意顧示。其工作過程是 :料斗109中的顆粒狀聚合物進入作為加料筒的一具有螺 桿的加工裝置101中加熱成熔融狀態,並與引入作為發泡 劑的超臨界流體混合且在進入冷卻步驟前相互溶解,使 料液形成一種非成核、均質、流體、單相的溶液;來自 加料筒中的料液通過連接通道102經由開關103被可選擇 的加入配備柱塞的出料筒108的其中之一,在作為注射器 的出料筒108前的開關103可作為該選擇作用之用,連接 通道102中可安置靜態混合器;當料液經由開關103對出 料筒108的其中之一計量加料時,引起該其中之一的出料 筒108的柱塞後退,通過控制柱塞以促使料液保持在相互 099145967 表單編號A0101 第6頁/共62頁 0992079096-0 201226458 溶解狀態;當該其中之一的出料筒計量完成後,接著注 射至模具中成型;在該其中之一的出料筒注射的同時, 開關1 03對該其中之一的出料筒閉合而對另一出料筒連通 以計量加料,當該另一出料筒計量完成後,接著注射至 模具中成型;在該另一出料筒注射的同時,開關103對該 另一出料筒閉合而對原先的該其中之一的出料筒連通以 計量加料;如此交替加料、注射,在短時間内連續生產 注射成型的微孔發泡產品。此種系統結構,使注射時的 壓力波動可不影響到發泡劑的引入。 Ο 此方法存在以下缺點:1、當料液中具有高濃度的發 泡劑時,為獲得由加料筒101進入出料筒108的單相、非 核、均勻的料液,加料筒内必須提供遠高於發泡劑臨界 壓力的背壓;因而導致將發泡劑注入加料筒内的注入壓 力升高,注入難度加大,成本上升。 2、為提供足夠高的出料筒内的持續壓力,以保持出 料筒内的高濃度發泡劑的溶解,使有利於提高氣室成核 的數量,加料筒内需要很高的壓力才能將料液注入到出 〇 料筒中,因而增大加料螺杆的阻力、造成機筒的承壓大 *成本兩。 對獲得更高氣室密度的聚合物發泡產品,傳統上已 知熱力學的不穩定與超臨界流體在聚合物内的溶解度是 兩個主要關鍵。 相對於擠塑之類的連續發泡加工技術,上述注塑之 類的不連續發泡加工技術,可藉由發泡劑的引入與溶解 操作從注射與成型操作中分離,提供注射瞬間的很高壓 降速率,以產生更大的熱力學不穩定。然而,對傳統注 099145967 表單編號A0101 第7頁/共62頁 0992079096-0 201226458 2技術’若在注射料液前發泡劑溶解尚未完成以形成單 相心液,則必須控制壓力在持續足夠高壓下等待單相溶 液的形成,此將影響到產品成型週期,與不利於發泡產 :的生產。因為’在注射料液前若料液中的發泡劑是在 靜態下完成完全溶解’易於導致發泡劑在料液混合物中 不均勻分佈’而不利於生產發泡產品的工藝控制。此種 ,况,造成使用傳統系統結構的發泡加工過程,其發泡 d的作不宜獨立於在成核前對單相溶液的溶解操 作之外。因而傳統上,控制麼力以獲得單相溶液過程令 °亥料液上的控制壓力的變動將影響發泡劑的引入。例 θ 一虽加工過程中有更高的控制壓力需求時,必須相應 提高發泡劑的引入壓力。 Θ、此外’對注塑技術’料液中的聚合物母體中引入過 1包J或每個週期的壓力脈動,將使發泡劑在加工過 ,不易το王4解於聚合物母體*不利於發泡產品的 ^ °此種_,着由增加在注射料液前 路料筒的料液上施加更高持續背壓_制壓力,或是依Obviously, increasing the force exerted on the single-phase solution can increase the solubility of the supercritical fluid in the polymer mixture, and it is easy to obtain a larger dust drop rate to improve the thermodynamic instability in the nucleation process, which is advantageous for improving the foaming product. The number of gas chamber nucleation is obtained with a more robust microporous hair Z 099145967 Form No. _1 "Page / Total 62 pages 〇992〇79〇96.〇201226458 A traditional foam molding sowing technique, basic foaming The polymer processing can be combined in an extrusion foaming process in which, for an extruder of conventional plasticized polymer particles, the necessary extrusion foaming process consists essentially of four physical components. The gas is injected directly into the molten polymer stream of the extruder by a gas metering system. The mixing of the extruder screw and the uniform portion establish a uniform mixing of the polymer and gas. The high gas solubility of the pressure is: a single-phase solution. At the end of the extruder, a nucleation device is used to achieve a high nucleation rate required for critical nucleation. An extrusion foaming process sometimes requires an additional extruder to allow the single phase solution entering the additional extruder to be properly cooled to facilitate cell fixation of the foamed product. In the bubble forming process, an additional single-phase solution accumulator with a plunger is often used, and the single-phase solution produced during the extrusion process is filled with a single-phase solution required for injection under high pressure before being injected, and then A greater pressure drop is produced by the injection of a higher instantaneous pressure. This additional accumulator is often used as a suitable cooling of the single phase helium solution prior to injection to facilitate cell fixation. However, discontinuities such as injection molding In the foaming process, the process causes the polymer material input to periodically pause, which is not conducive to the stable mixing ratio of the foaming agent to the polymer. For example, when the polymer material input is stopped, the melting near the foaming agent inlet is melted. Polymers, which tend to contain higher doses of blowing agent due to prolonged residence, result in uneven distribution of the introduced blowing agent in the mixture; this may cause viscosity changes in the mixture It is not conducive to the process control of the production of foamed products. Moreover, the uneven distribution of the foaming agent in the mixture is not conducive to the consistency of the foamed product. 099145967 Form No. A0101 Page 5 of 62 0992079096-0 201226458 The cyclical plastic input of the mechanism is stalled, resulting in uneven distribution of the foaming agent in the plastic. Chinese Patent No. 971 1 1 630.X discloses an injection-molded thermoplastic resin product and a production method thereof, which will be foamed. The introduction and dissolution of the agent are separated from the injection and molding operations, so that the pressure in the extrusion cylinder is well maintained to obtain a relatively stable metering of the blowing agent, thereby obtaining a stable mixing ratio of the gas foaming agent to the plastic. The exemplary system for implementing the method comprises a charging cylinder connected with a gas conveying device, a hopper and a heating device, wherein the feeding cylinder is provided with a screw connected to the rotary driving mechanism, and the front end of the feeding cylinder and the inner cavity of the two discharging cylinders respectively Connected, the inner cavity of the discharge cylinder as the storage chamber communicates with the nozzle, and the valve controls the opening or closing of the nozzle, and connects and stores when the nozzle is opened. Chamber and the cavity of the mold. Moreover, each of the discharge cylinders may correspond to one mold, or all of the discharge cylinders may correspond to one mold at the same time. Among them, the screw in the feeding cylinder generally includes feeding, conveying, foaming agent introduction, mixing, and metering. The first figure is a schematic illustration of the above system. The working process is that the granular polymer in the hopper 109 is heated into a molten state in a processing device 101 having a screw as a charging cylinder, and mixed with a supercritical fluid introduced as a foaming agent and mutually before entering the cooling step. Dissolving to form a non-nucleating, homogeneous, fluid, single phase solution; the feed liquid from the charging cylinder is selectively introduced into one of the discharge barrels 108 equipped with the plunger via the connecting passage 102 via the switch 103. The switch 103 in front of the discharge cylinder 108 as a syringe can be used for this selection, and a static mixer can be disposed in the connection passage 102; when the liquid is metered into one of the discharge cylinders 108 via the switch 103, The plunger of the discharge cylinder 108 causing one of the retreats is retracted by controlling the plunger to cause the liquid to remain in a mutual state of 099145967 Form No. A0101 Page 6 / Total 62 Page 0992079096-0 201226458; After the discharge cylinder is metered, the injection is then molded into the mold; at the same time as one of the discharge cylinders is injected, the switch 103 closes one of the discharge cylinders. The other discharge drum is connected to meter the feed, and after the other discharge cylinder is metered, the injection is then molded into the mold; while the other discharge cylinder is being injected, the switch 103 is closed to the other discharge cylinder. And the discharge drum of one of the original ones is connected to measure the feeding; thus alternately feeding and injecting, the injection-molded microcellular foaming product is continuously produced in a short time. This system configuration allows the pressure fluctuations during injection to not affect the introduction of the blowing agent. Ο This method has the following disadvantages: 1. When there is a high concentration of blowing agent in the liquid, in order to obtain a single-phase, non-nuclear, uniform liquid from the charging cylinder 101 into the discharge cylinder 108, the feeding cylinder must provide far The back pressure is higher than the critical pressure of the blowing agent; thus, the injection pressure for injecting the blowing agent into the charging cylinder is increased, the injection is more difficult, and the cost is increased. 2. In order to provide a sufficiently high continuous pressure in the discharge cylinder to maintain the dissolution of the high concentration foaming agent in the discharge cylinder, which is beneficial to increase the number of nucleation of the gas chamber, high pressure is required in the charging cylinder. The feed liquid is injected into the discharge cylinder, thereby increasing the resistance of the feed screw and causing a large pressure* of the barrel. For polymer foamed products that achieve higher gas cell densities, thermodynamic instability and the solubility of supercritical fluids in polymers are traditionally known to be two key factors. Compared with the continuous foaming processing technology such as extrusion, the discontinuous foaming processing technique such as the above injection molding can be separated from the injection and molding operation by the introduction and dissolution operation of the foaming agent, and provides a high pressure at the injection instant. Rate down to produce greater thermodynamic instability. However, for the traditional note 099145967 Form No. A0101 Page 7 / Total 62 pages 0992079096-0 201226458 2 Technology 'If the foaming agent is not dissolved before the injection of the liquid to form a single-phase liquid, then the pressure must be controlled to continue high enough Waiting for the formation of a single-phase solution, which will affect the product molding cycle, and production that is not conducive to foaming: Because 'the foaming agent in the feed liquid before the injection of the liquid is completely dissolved under static conditions ‘easy to cause uneven distribution of the blowing agent in the liquid mixture' is not advantageous for the process control of producing the foamed product. In this case, the foaming process using a conventional system structure is not allowed to be independent of the dissolution operation of the single phase solution prior to nucleation. Thus, conventionally, controlling the force to obtain a single-phase solution process causes variations in the control pressure on the liquid to affect the introduction of the blowing agent. Example θ - Although there is a higher control pressure requirement during processing, the introduction pressure of the blowing agent must be increased accordingly. In addition, the introduction of 1 pack J or the pressure pulsation of each cycle in the polymer matrix in the 'injection molding technology' feed liquid will make the foaming agent process, and it is not easy to solve the problem of the polymer matrix*. The foaming product of this type is increased by applying a higher continuous back pressure to the feed liquid in the front of the injection liquid.

發泡劑在單相溶液中 I 的最大可溶總數量相應降低發泡劑 在早相溶液中的濃许 供的短時間高壓,I目3得緩解。但傳統上,注射提 ,而非保證發泡劑在1=Γ產生更大的熱力學不穩定 ;故而傳統技術中於聚合物母體 劑溶解需要的很高科提供超過發泡 劑的引入壓力、力:=,將導致必須相應提高發泡 過程中的壓力,而造成加工 解度操作,亦有類似困擾而且,即使對發泡劑的—般溶 099145967 表單編號A0101 筮 0992079096-0 弟8頁/共62頁 201226458 而且,對於傳統Μ之—連續發泡加卫技術,單 相溶液成核前對其料液維持很高的更高壓力,以降低戈 防止環境波動造成的不想要的發泡劑成核,亦有需要。The maximum soluble total amount of the blowing agent in the single-phase solution I correspondingly reduces the short-time high pressure of the blowing agent in the early phase solution, and the I mesh 3 is alleviated. However, traditionally, injections, rather than ensuring that the blowing agent produces greater thermodynamic instability at 1 = ;; therefore, in the conventional art, the high temperature required for the dissolution of the polymer matrix agent provides more than the introduction pressure and force of the blowing agent: =, will lead to a corresponding increase in the pressure during the foaming process, resulting in processing solution, there are similar problems and even if the foaming agent is generally dissolved 099145967 Form No. A0101 筮0992079096-0 Brother 8 Page / Total 62 Page 201226458 Moreover, for the traditional Μ - continuous foaming and defensive technology, the single-phase solution maintains a high pressure on the liquid before nucleation to reduce the unwanted foaming agent nucleation caused by environmental fluctuations. There is also a need.

類同於注塑技術’對-擠墨發泡成型加工過程,為 獲得溶融聚合物中超臨界流體的更高溶解度,必須在聚 合物混合物上施加更高的足夠壓力。此種情形,:需相 應配合進-步提高被提供發泡劑的壓力,師得咳更古 溶解度的單相溶液。因__擾«合界、I Ο 體必須引人在㈣更高的壓力下。而且,當獲得單相溶 液的發泡劑溶解操作需魏高的壓力時,將使加工過程 中熔融聚合物與發泡劑的螺杆縣㈣變餘為因難, 且此種高壓阻力可能造成加料螺桿的空轉,而不利於生 產發泡產品,特別是當料液本身_性較低時。、 對-般發泡加工過程,為引入在環境條 的發泡劑進入㈣聚合物中,其發崎的被提供壓力t 常必須南於鄰近發泡㈣人 沾 少50psi。 的聚a物上的施加壓力至 Ο 但是’因為傳統發泡加 與溶解操作,因*在獲得二錄發泡劑的引入 解的連續操作過程中,由引喊的發泡劑的引入與溶 泡劑與熔融聚合物的混合、2泡劑至㈣聚合物,發 常被要求在進入單相、^ ,解’到早相溶液的獲得, 故而,對於更高的 過程之…成。 向聚合物流體的切㈣,^力,將使發泡劑更易於 少或防止發泡劑從聚合物流加額外處置,以減 別是在發泡劑的引人停止時。、#的進料口逸出,特 099145967 表單編號A0101 單9頁/共62頁 0992079096-0 201226458 此外,對傳統擠塑技術,為引入發泡劑在較低壓力 下,相對限制施加在成核前單相溶液上的維持壓力,不 利於在成核時提供更大的熱力學不穩定。例如:在傳統 擠塑發泡加工過程中,為獲得強健的擠塑微孔發泡產品 ,需要對成核前的單相溶液施加一高的壓降速率,但因 不易在成核前的單相溶液上施加一很高的維持壓力,故 其常藉由鋼模間隙的開口橫斷面面積盡可能減少達成。 然而,當鋼模間隙的開口橫斷面的面積減少時,將造成 生產的發泡製品變薄,而不能製造厚的發泡製品;反之 ,為了製造厚的發泡製品,而增大鋼模間隙的開口橫斷 面的面積,將降低料液成核時的壓降速率,致使不能獲 得想要的微孔發泡產品。 但是,那些發明人沒有查覺到,分離發泡劑的引入 操作與單相溶液的形成操作,可易於提供極高壓力於單 相溶液的形成操作,以獲得單相溶液中發泡劑的更高溶 解度。而且,此種狀況,可在較低或相同的發泡劑引入 壓力下,易於提供更高的維持壓力於成核前的單相溶液 上,以解決傳統上為配合發泡劑的引入壓力,而使在成 核前的單相溶液上的維持壓力受限,因而不得不降低發 泡劑的引入劑量,以防止因環境波動造成在成核前的單 相溶液中的次相形成。 因此,有一需要,發展一種發泡加工技術,在較低 的壓力下引入發泡劑至聚合物中,以獲得在聚合物混合 物内有與傳統相同的發泡劑溶解度。此種狀況,利於引 入發泡劑在較低壓力下,與進一步提高發泡劑在聚合物 混合物内的溶解度。而且,也需要一種技術,提供極高 099145967 表單編號A0101 第10頁/共62頁 0992079096-0 201226458 維持壓力於成核前的單相溶液上,且無需同時配合進一 步提高發泡劑的引人I力,以防止因環境波動造成不想 要的單相溶液成核。 【發明内容】 [0003] Ο 本發明可用於擠塑、注塑、模塑或其他發泡加工的 技術生產。本發明$同於現有技術,其藉由發泡劑的引 入操作與單相溶液的形成操作可被獨立控制,使其相對 可易於提供遠高於發泡劑在聚合物混合物内溶解所需壓 力,此也有助於降低或防止因環境波動造成單相溶液成 核前的溶解度變化形咸的不想要的發泡劑成核,特別是 對生產發泡產品的發泡劑連續引入加工過程。而且與傳 統技術相比,本發明在單相溶液成核前,更易於提供單 相溶液上的持續維持高壓,且不影響發泡劑的?丨入。 本發明方法可改善現有技術的在提高出料筒内腔壓 力的同時,加料螺杆阻力大、機筒承壓大的缺點;進一 步’為更好地.實施本發明方法’本發明提供了一種在提 高出料筒内腔壓力的同時保持加料筒較低的壓力,使加 料螺杆阻力小、機筒承壓小的形成發泡產品的方法及其 系統。 本發明的一目的在提供可易於在成核前的單相溶液上維 持更高於傳統的持續高壓,使單相溶液中的發泡劑溶解 度可易於更高於傳統,以利於提高發泡產品内的氣室密 度0 本發明的另一目的在提供在成核前的單相溶液上維 持類同於傳統的持續高壓,而發泡劑的引入壓力可相對 099145967 低於傳統的引入壓力,使發泡劑的引入相對變成較容易 表單编號A0101 第Π頁/共62頁 0992079096-0 201226458 。因而,在較低的發泡劑引入壓力下,加料螺桿相對不 易因高壓阻力而造成空轉,而利於生產發泡產品,特別 是當料液本身的黏性較低時。而且,較低的發泡劑引入 壓力,有利於減少或防止發泡劑從聚合物流體的上游的 進料口逸出。 本發明的一其他目的在提供在成核前的單相溶液上 易於維持高於傳統的持續高壓,以利於降低或防止壓力 波動造成的不想要的發泡劑成核。 為實現上述目的,本發明提供一種將單相溶液注入 模具形成發泡產品的方法,該方法獲得該單相溶液的步 驟包含:1 )、發泡劑的引入步驟,在一具有螺桿的加工 裝置中輸送聚合物材料,並引入在環境條件下呈氣態的 發泡劑進入該聚合物材料形成聚合物混合物的料液;2) 、料液輸送的緩衝步驟,輸送該料液從加工裝置的出口 進入一被選擇的儲料筒,且控制壓力使該料液的發泡劑 的一部分溶解於聚合物材料中;3)、單相溶液的獲得步 驟,控制壓力使該被選擇的儲料筒中的料液的發泡劑與 聚合物材料相互溶解,以獲得單相溶液;其中該獲得單 相溶液過程中該控制壓力的變動不影響發泡劑的引入。 本發明與傳統方法主要不同為:藉由額外的料液輸 送的缓衝步驟,使發泡劑的引入步驟與單相溶液的獲得 步驟可被獨立控制。因而,該獲得單相溶液過程中的控 制壓力的變動,不影響發泡劑的引入。 進一步,其中該加工裝置的出口經開關裝置連接至 少兩個所述的儲料筒,以輸送料液從加工裝置的出口進 入該至少兩個所述的儲料筒的該被選擇的儲料筒。 099145967 表單編號A0101 第12頁/共62頁 0992079096-0 201226458 進一步,本發明方法中單相溶液的獲得步驟進一步 為:輸送料液從該被選擇的儲料筒進入與該被選擇的儲 料筒連接的一出料筒,並控制壓力使該料液的發泡劑與 聚合物材料相互溶解,以獲得單相溶液。 進一步,其中每個所述的儲料筒各自連接一個所述 的出料筒。 或者,其中所有的儲料筒連接同一出料筒。 進一步,其中計量輸送至每個所述的儲料筒中的料 液的量少於計量輸送至出料筒中的料液的量。 Ο 進一步,在本發明方法中,當尚未完成輸送料液從 一被選擇的儲料筒進入與該被選擇的儲料筒連接的出料 筒,且已完成輸送料液從加工裝置進入其餘的儲料筒時 ,暫停該加工裝置的料液的輸送。 此外,本發明方法進一步包含使該單相溶液經受迅 速的壓降注入該模具的模腔中,以獲得成核的聚合物材 料前驅物,而後製成聚合物的發泡產品。 為更好地的實施上述本發明方法,本發明增益傳統 〇 系統,以易於完善本發明方法的實施。本發明提出一種 形成聚合物發泡產品的系統,以易於完善本發明方法的 實施。該系統將聚合物材料向下游方向的末端出口連接 的一帶入口的模腔輸送,並引入在環境條件下呈氣態的 發泡劑進入該聚合物材料,其中該系統包括:一具有螺 桿的加工裝置,該加工裝置的出口向下游方向輸送·熔融 聚合物與在環境條件下呈氣態的發泡劑形成的聚合物混 合物的料液;至少兩個儲料筒,該儲料筒的入口經開關 裝置與加工裝置的出口連接,以便料液由加工裝置可選 099145967 表單編號A0101 第13頁/共62頁 0992079096-0 201226458 擇的輸送至儲料筒中;至少一出料筒,該出料筒的入口 與相應的儲料筒的出口連接,並於連接的通道上設開關 裝置,以便控制該出料筒接收與該出料筒連接的儲料筒 内的料液;以及至少一個所述的帶入口的模腔,該模腔 的入口與相應的出料筒的所述的末端出口連接,以便該 模腔接收熔融聚合物與發泡劑形成的料液,而後製成聚 合物的發泡產品。 因而,該系統被構造與佈置成加工裝置的出口經過 開關裝置連通至少兩個儲料筒,以便可選擇的輸送聚合 物混合物的料液從一被選擇的儲料筒至相應於該儲料筒 的出料筒,以在該出料筒中獲得一單相溶液的料液;而 後移轉該出料筒内的料液至相應於該出料筒的一帶入口 的模腔,而後製成聚合物的發泡產品。 進一步,其中每個所述的儲料筒的出口各自連接一 個所述的出料筒的入口。 或者,其中全部所述的儲料筒的出口連接同一所述 的出料筒的入口。 進一步,其中當所有的儲料筒連接同一出料筒時, 該系統中的儲料筒的容量小於該出料筒的容量。 進一步,本發明系統包含一成核裝置,並該出料筒 經該成核裝置連接該模腔。 而且,在本發明提供的系統中,所述的加料筒的内 腔的壓力一般設定高於超臨界流體發泡劑的臨界壓力, 並控制壓力以使所述的聚合物混合物在所述的儲料筒、 加料筒、出料筒的内壓力可依需要逐步提高,並在所述 的出料筒内獲得一種單相、非核、均勻的溶液。 099145967 表單編號A0101 第14頁/共62頁 0992079096-0 201226458 Χ '一 一- ..--〜"'邱竹筒作為緩衝, 使發泡劑的引入操作與單相溶液的形成操作可至+某種 程度的各自被獨立控制。因而’加料筒内的料液可視操 作狀況依序導人各儲料筒,且將導人完成的儲料筒㈣ 料液導入與該儲料筒連通的出料筒,以在該出料筒内獲 得-種單相雜。其中’藉㈣料筒作為緩衝,以利於 引入發泡劑至加料筒内的熔融聚合物中的過程,可獨立 處理於發泡劑的完全溶解以獲得單相溶液的過程,使力 Ο 料筒的内壓可只需高於超臨界流體發泡劑的臨界壓^ 不似傳統技術會受影響於單相溶液的形成操作。故相對 於傳統技術,本發明的較低加料筒内壓 控制相對較容易。 奥使加料筒内的 此外’儲料筒的緩衝功能,使儲料筒的内壓可 要在加工過程中相對易於提高至高於傳 以轉移發泡劑〜合物的 物= 料筒中,鋪由料 ㈣的枓液至出Similar to injection molding technology, in the extrusion-boiler molding process, in order to obtain a higher solubility of the supercritical fluid in the molten polymer, it is necessary to apply a higher enough pressure on the polymer mixture. In this case, it is necessary to cooperate with the step-by-step method to increase the pressure of the foaming agent provided, and to obtain a single-phase solution of more ancient solubility. Because __ disturb «bound, I Ο body must be attracted to (four) higher pressure. Moreover, when the foaming agent dissolving operation for obtaining the single-phase solution requires a high pressure, the screw county (four) of the molten polymer and the foaming agent during processing will be difficult, and such high-pressure resistance may cause feeding. The idling of the screw is not conducive to the production of foamed products, especially when the liquid itself is low. For the general foaming process, in order to introduce the blowing agent in the environmental strip into the (iv) polymer, the pressure of the squid is often required to be 50 psi less than the adjacent foaming (4). The pressure exerted on the poly-a material to Ο but 'because of the conventional foaming and dissolving operation, due to the introduction and dissolution of the screaming blowing agent during the continuous operation of the introduction solution of the second recording blowing agent The mixing of the blowing agent with the molten polymer, the 2 foaming agent to the (4) polymer, is often required to enter the single phase, ^, solution to the early phase solution, and thus, for higher processes. The cutting (4) to the polymer fluid will make the blowing agent easier to prevent or prevent the blowing agent from adding additional treatment from the polymer stream to reduce the cessation of the blowing agent. , #的进口出出,特099145967 Form No. A0101 Single 9 pages / Total 62 pages 0992079096-0 201226458 In addition, for the traditional extrusion technology, for the introduction of blowing agent at lower pressure, the relative restrictions imposed on the nucleation The maintenance pressure on the pre-single phase solution is not conducive to providing greater thermodynamic instability during nucleation. For example, in the traditional extrusion foaming process, in order to obtain a strong extruded microcellular foaming product, it is necessary to apply a high pressure drop rate to the single-phase solution before nucleation, but it is not easy to be single before nucleation. A very high maintenance pressure is applied to the phase solution, so it is often achieved by minimizing the cross-sectional area of the opening of the steel mold gap. However, when the area of the opening cross section of the steel mold gap is reduced, the produced foamed product is thinned, and a thick foamed product cannot be produced; on the contrary, in order to manufacture a thick foamed product, the steel mold is enlarged. The area of the open cross-section of the gap will reduce the rate of pressure drop during nucleation of the feed liquid, rendering the desired microcellular foamed product unobtainable. However, those inventors have not noticed that the introduction operation of separating the blowing agent and the forming operation of the single-phase solution can easily provide an extremely high pressure in the formation operation of the single-phase solution to obtain a more foaming agent in the single-phase solution. High solubility. Moreover, in such a condition, it is easy to provide a higher maintenance pressure on the single-phase solution before nucleation under a lower or the same introduction pressure of the blowing agent, so as to solve the introduction pressure conventionally used for the foaming agent. The maintenance pressure on the single-phase solution before nucleation is limited, so that the introduction dose of the blowing agent has to be lowered to prevent the formation of a secondary phase in the single-phase solution before nucleation due to environmental fluctuations. Therefore, there is a need to develop a foaming process that introduces a blowing agent into the polymer at a lower pressure to obtain the same foaming agent solubility as in the polymer mixture. This condition facilitates the introduction of the blowing agent at lower pressures and further increases the solubility of the blowing agent in the polymer mixture. Moreover, there is also a need for a technique that provides extremely high 099145967 Form No. A0101 Page 10 / Total 62 Page 0992079096-0 201226458 Maintain pressure on a single-phase solution prior to nucleation, without the need to simultaneously increase the attractiveness of the blowing agent. Force to prevent unwanted single-phase solution nucleation due to environmental fluctuations. SUMMARY OF THE INVENTION [0003] The present invention can be used in the technical production of extrusion, injection molding, molding or other foaming processes. The present invention is the same as the prior art, and can be independently controlled by the introduction operation of the blowing agent and the forming operation of the single-phase solution, so that it can easily provide a pressure much higher than that required for the blowing agent to dissolve in the polymer mixture. This also helps to reduce or prevent the undesired foaming agent nucleation of the salty change before the nucleation of the single-phase solution due to environmental fluctuations, especially for the continuous introduction of the foaming agent for producing the foamed product into the processing. Moreover, compared to conventional techniques, the present invention is easier to provide a sustained high pressure on a single phase solution prior to nucleation of a single phase solution without affecting the blowing agent. Break in. The method of the invention can improve the defects of the prior art, while increasing the pressure of the inner cavity of the discharge cylinder, the resistance of the feeding screw is large, and the pressure of the barrel is large; further 'for better implementation of the method of the invention', the invention provides a The method and system for forming a foamed product by increasing the pressure of the inner cavity of the discharge cylinder while maintaining the lower pressure of the feeding cylinder, making the feeding screw have small resistance and the pressure of the barrel is small. It is an object of the present invention to provide a continuous higher pressure which is easier to maintain on a single phase solution prior to nucleation than conventional, so that the solubility of the blowing agent in the single phase solution can be easily higher than conventional to facilitate the foaming product. Internal chamber density 0 Another object of the present invention is to provide a continuous high pressure similar to conventional ones on a single phase solution prior to nucleation, and the introduction pressure of the blowing agent can be lower than the conventional introduction pressure relative to 099145967. The introduction of a blowing agent has become relatively easy to form number A0101 page/total 62 pages 0992079096-0 201226458. Thus, at lower blowing agent introduction pressures, the feeding screw is relatively less susceptible to idling due to high pressure resistance, which facilitates the production of foamed products, especially when the viscosity of the liquid itself is low. Moreover, the lower blowing agent introduces pressure which helps to reduce or prevent the blowing agent from escaping from the feed inlet upstream of the polymer fluid. It is a further object of the present invention to provide for easier maintenance of a higher than conventional continuous high pressure on a single phase solution prior to nucleation to help reduce or prevent unwanted blowing agent nucleation caused by pressure fluctuations. In order to achieve the above object, the present invention provides a method for injecting a single-phase solution into a mold to form a foamed product, the method of obtaining the single-phase solution comprising: 1) a step of introducing a foaming agent, and a processing device having a screw Transferring the polymer material and introducing a blowing agent which is gaseous under ambient conditions into the polymer material to form a liquid mixture; 2) a buffering step of conveying the liquid, and conveying the liquid from the outlet of the processing device Entering a selected storage tank, and controlling the pressure to dissolve a portion of the blowing agent of the liquid in the polymer material; 3) obtaining a single-phase solution, controlling the pressure in the selected storage tank The blowing agent of the feed liquid and the polymer material are mutually dissolved to obtain a single-phase solution; wherein the variation of the control pressure during the process of obtaining the single-phase solution does not affect the introduction of the blowing agent. The main difference between the present invention and the conventional method is that the step of introducing the blowing agent and the obtaining step of the single-phase solution can be independently controlled by a buffering step of additional feed liquid feeding. Thus, the variation in the control pressure during the single phase solution is obtained without affecting the introduction of the blowing agent. Further, wherein the outlet of the processing device is connected to at least two of the storage cartridges via a switching device to deliver a feed liquid from the outlet of the processing device into the selected storage cartridge of the at least two of the storage cartridges . 099145967 Form No. A0101 Page 12 of 62 0992079096-0 201226458 Further, the step of obtaining the single phase solution in the method of the present invention is further: feeding the feed liquid from the selected storage tank into the selected storage tank A discharge cylinder is connected, and the pressure is controlled to dissolve the foaming agent of the liquid and the polymer material to obtain a single-phase solution. Further, each of said storage bins is connected to one of said discharge cylinders. Alternatively, all of the cartridges are connected to the same discharge cylinder. Further, the amount of liquid metered into each of said cartridges is less than the amount of liquor metered into the discharge drum. Further, in the method of the present invention, when the delivery liquid has not been completed from a selected storage tank into the discharge cylinder connected to the selected storage tank, and the delivery of the liquid liquid from the processing device to the rest is completed. When the cartridge is stored, the delivery of the liquid of the processing device is suspended. Moreover, the method of the present invention further comprises subjecting the single phase solution to a rapid pressure drop into the mold cavity of the mold to obtain a nucleated polymer material precursor and then forming a foamed product of the polymer. To better implement the above described method of the present invention, the present invention extends the conventional enthalpy system to facilitate the implementation of the method of the present invention. The present invention provides a system for forming a polymer foamed product to facilitate the practice of the process of the present invention. The system transports a polymeric material to an inlet cavity of the inlet end of the downstream direction and introduces a blowing agent that is gaseous under ambient conditions into the polymeric material, wherein the system comprises: a processing device having a screw a feed liquid of the polymer mixture formed by the outlet of the processing device in a downstream direction, a molten polymer and a foaming agent which is gaseous under ambient conditions; at least two storage cylinders, the inlet of the storage cylinder is connected to the switching device It is connected to the outlet of the processing device, so that the liquid is transported to the storage tank by the processing device: 099145967 Form No. A0101, page 13 / 62 pages 0992079096-0 201226458; at least one discharge cylinder, the inlet of the discharge cylinder Connecting to an outlet of the corresponding storage drum, and providing a switching device on the connecting passage for controlling the discharge cylinder to receive the liquid in the storage tank connected to the discharge cylinder; and at least one of the inlets a cavity, the inlet of the cavity being connected to the end outlet of the corresponding discharge cylinder, so that the cavity receives the liquid formed by the molten polymer and the blowing agent, and Foamed product made of the polymer. Thus, the system is configured and communicated with the outlet of the processing device via the switching device to communicate with the at least two storage cartridges to selectively transport the feed of the polymer mixture from a selected storage cartridge to the corresponding storage cartridge a discharge cylinder for obtaining a liquid of a single-phase solution in the discharge cylinder; and then transferring the liquid in the discharge cylinder to a cavity corresponding to the inlet of the discharge cylinder, and then forming a polymer Foaming products. Further, each of said outlets of said cartridges are each connected to the inlet of one of said discharge cylinders. Alternatively, the outlets of all of said cartridges are connected to the inlet of the same discharge cylinder. Further, wherein when all the storage drums are connected to the same discharge drum, the capacity of the storage drum in the system is smaller than the capacity of the discharge cylinder. Further, the system of the present invention includes a nucleation device through which the discharge barrel is coupled to the mold cavity. Moreover, in the system provided by the present invention, the pressure of the inner cavity of the charging cylinder is generally set higher than the critical pressure of the supercritical fluid blowing agent, and the pressure is controlled to cause the polymer mixture to be in the storage. The internal pressure of the barrel, the charging cylinder and the discharging cylinder can be gradually increased as needed, and a single-phase, non-nuclear, uniform solution is obtained in the discharging cylinder. 099145967 Form No. A0101 Page 14 of 62 0992079096-0 201226458 Χ '一一-..--~" 'Qiu bamboo tube as a buffer, the introduction of foaming agent and the formation of single-phase solution can be + Some degree of independence is controlled independently. Therefore, the liquid in the charging cylinder can guide the storage cylinders in sequence according to the operation condition, and introduce the storage tank (4) of the finished liquid into the discharge cylinder communicating with the storage cylinder to be in the discharge cylinder. Internally obtained - a single phase impurity. The process of 'boring (four) barrel as a buffer to facilitate the introduction of the blowing agent into the molten polymer in the charging cylinder can be independently processed in the process of completely dissolving the blowing agent to obtain a single-phase solution, so that the barrel is forced to The internal pressure may only be higher than the critical pressure of the supercritical fluid blowing agent. Unlike conventional techniques, the single phase solution may be affected. Therefore, the lower charging cylinder internal pressure control of the present invention is relatively easy compared to the conventional art. In addition to the buffer function of the storage cylinder in the charging cylinder, the internal pressure of the storage cylinder can be relatively easily increased during processing to be higher than the transfer of the foaming agent to the compound = the cylinder, Material (4) sputum to the out

下進-步均勻現合與I 發泡劑在該足夠高壓 料液。此由於作^解’⑽證獲得—種單相溶液的 _马發泡劑的超臨界流體有 〇 , ,可在短時間^溶入熔融聚合物中 壓力::::二Μ料筒’M、_ — 實現丨㈣ &要逐步提⑤,以儲料筒為緩衝, ::操作與單相溶液的形成操作被獨立控 古的壓力㈣料術相^ ’本發明方法易於提供相對極 099145967 二=Γ前的單相溶液上,且無需同時_ 步如同發泡劑的弓丨入壓力。 表單編號A0101 ^ 15 62 * ⑽ 201226458 本發明系統的此種改進,使發泡劑的引入操作與單 相溶液的形成操作可易於被獨立控制,進而使發泡劑的 引入操作與在成核前對單相溶液的維持操作可被獨立控 制。 因而,相較於傳統系統,在本發明系統中,出料筒 中的壓力相對易於保持南於傳統的足夠南的壓力’使本 發明系統更易於提供相對更高於發泡劑完全溶解於聚合 物材料中所需臨界壓力,以易於保證發泡劑的完全溶解 。而且,在單相溶液上的維持壓力更高於發泡劑完全溶 解所需臨界壓力至一定程度時,有利於阻止在單相溶液 成核前的蓄積操作階段的因壓力或周圍環境狀況波動造 成在單相溶液中的次相形成。相對於傳統系統,藉由本 發明系統的幫助,使本發明方法更易於實現本發明的上 述目的。 而且,藉由本發明系統的幫助,本發明可提供一種 形成發泡產品的方法,包含:在一聚合物加工系統中將 聚合物材料由聚合物加工空間的一上游經過可選擇的路 徑向與一下游方向末端出口連接的一帶入口的模腔輸送 ;引入在環境條件下呈氣態的發泡劑進入該聚合物材料 ;以及由該聚合物材料形成該發泡產品,其中該聚合物 材料由該聚合物加工空間的該上游向該可選擇的路徑的 一被選擇的路徑輸送時,該聚合物材料停止由該被選擇 的路徑向該下游輸送。 進一步,其中該聚合物加工空間的上游連接至少兩 條所述的路徑,使聚合物材料由該聚合物加工空間的上 游通過開關裝置可選擇的向該至少兩條所述的路徑的該 099145967 表單編號A0101 第16頁/共62頁 0992079096-0 201226458 被選擇的路徑輸送。 進一步,其中該至少兩條所述的路徑通過開關裝置 連接該下游,使該聚合物材料由該被選擇的路徑向該下 游輸送時,該聚合物材料停止由該可選擇的路徑的該上 游向該被選擇的路徑輸送。 進一步,其中該聚合物材料由該被選擇的路徑向該 下游輸送時,該聚合物材料停止由該可選擇的路徑的該 上游向該被選擇的路徑輸送。 進一步,上述本發明方法其中該形成發泡產品包括 Ο 擠塑發泡產品或模塑發泡產品或吹塑發泡產品或注塑發 泡產品。 進而,使本發明方法可推廣用於擠塑、注塑、模塑 或其他發泡加工的技術生產。本發明方法可提供在一聚 合物加工系統中引入在環境條件下呈氣態的發泡劑,並 促使熔融聚合物與該發泡劑形成的聚合物混合物經過可 選擇的路徑向一下游方向輸送;在該下游方向上獲得一 非成核、均質、流體、單相的溶液;以及以該單相溶液 〇 製成聚合物的發泡產品。因為,聚合物材料由聚合物加 工空間的上游向該可選擇的路徑的一被選擇的路徑輸送 時,聚合物材料停止由該被選擇的路徑向該下游輸送; 以及,聚合物材料由該被選擇的路徑向下游輸送時,聚 合物材料停止由該可選擇的路徑的上游向該被選擇的路 徑輸送。使得本發明方法可達到控制壓力以在該下游方 向上獲得該單相溶液,以及獲得該單相溶液過程中該控 制壓力的變動不影響該發泡劑的引入;或是在該下游方 向上控制壓力以維持該獲得的單相溶液,以及維持該單 099145967 表單編號A0101 第17頁/共62頁 0992079096-0 201226458 相溶液過程中該控制壓力的變動不影響不影響該發泡劑 的引入。 此外,在本發明的實際實施中,可如傳統技術,為 阻止模腔中成核材料的氣室增長,可將模腔的結構和控 制佈置為:料液成核後在成核料液上的壓力往下游方向 升高,以便料液固化後可獲得想要的細緻泡孔的均勻發 泡製品。 在本發明之後連同附圖一起步的考慮及描述,本發 明的額外優點、新穎性與目的,經由細思本發明的詳細 說明,將變成顯而易見。在本發明作為例示的附圖中, 為清楚表達,使熟悉此技術的人易於理解本發明的系統 與方法,僅說明需要理解的部份系統結構,並未標示附 圖中的每個零組件,且也未全部展示每個實施例示中的 每個零組件;且在描述本發明時,僅以示意圖顯示,未 以實際尺寸繪製完整圖示。此外,在不同附圖的圖示中 ,各個附圖中的每個相同或幾乎相同的零組件,都以相 同數字表示。 【實施方式】 [0004] 本發明的發泡劑可含化學發泡劑或成核劑,但使用 純物理發泡劑更佳。因使用化學發泡劑時,常在產品上 留有未反應的化學發泡劑或化學發泡劑的化學反應副產 物;使得使用化學發泡劑,不利於產品的回收再利用, 且一般化學發泡劑的成本也較高。 本發明可製造大氣室的聚合物發泡產品。但本發明 用於製造微孔發泡產品,且想要的氣室密度非常高時, 099145967 成核劑的成核貢獻毫無意義,故很少使用成核劑。 表單編號A0101 第18頁/共62頁 0992079096-0 201226458 本發明使用的物理發泡劑在大氣條件下是一種氣體 ’該物理發泡劑可以是在普通發泡技術中使用的已知的 任何各種物理發泡劑,諸如二氧化碳、氮、碳氫化合物 、氣氟烴、與類同物、以及它們的混合物。其中,提供 的發泡劑最好是二氧化碳、或氮、或者其混合物。雖然 相比於氣體發泡劑的加入,較喜歡加入液體發泡劑,但 加入超臨界流體發泡劑更佳,特別是超臨界流體的二氧 化碳、或氮、或者其混合物。The down-step is evenly combined with the I blowing agent in the sufficiently high pressure feed. This is because the supercritical fluid of the single-phase solution of the _ma foaming agent is obtained by the solution of (1), and can be dissolved into the molten polymer in a short time. Pressure:::: Two-cylinder barrel 'M , _ — to achieve 丨 (4) & to gradually mention 5, with the storage tank as a buffer, :: operation and single-phase solution formation operation is independently controlled by the ancient pressure (four) material phase ^ 'The method of the invention is easy to provide relative pole 099145967 Two = before the single-phase solution on the ruthenium, and there is no need to simultaneously _ step like the bowing pressure of the blowing agent. Form No. A0101^15 62 * (10) 201226458 This modification of the system of the present invention allows the introduction of the blowing agent and the formation of the single-phase solution to be easily controlled independently, thereby allowing the introduction of the blowing agent and before nucleation The maintenance operation of the single phase solution can be independently controlled. Thus, in the system of the present invention, the pressure in the discharge drum is relatively easy to maintain south enough to maintain a sufficiently south pressure compared to conventional systems, making the system of the present invention easier to provide relatively higher than the complete dissolution of the blowing agent to the polymer. The critical pressure required in the material to facilitate complete dissolution of the blowing agent. Moreover, when the maintenance pressure on the single-phase solution is higher than the critical pressure required for the complete dissolution of the blowing agent to a certain extent, it is advantageous to prevent the fluctuation of the pressure or the surrounding environment caused by the accumulation operation phase before the nucleation of the single-phase solution. Subphase formation in a single phase solution. The above-described objects of the present invention are made easier by the method of the present invention with the aid of the system of the present invention with respect to conventional systems. Moreover, with the aid of the system of the present invention, the present invention can provide a method of forming a foamed product comprising: moving a polymeric material from an upstream of a polymer processing space through a selectable path to a polymer processing system Forming a cavity with an inlet at a downstream end outlet connection; introducing a blowing agent that is gaseous under ambient conditions into the polymeric material; and forming the foamed product from the polymeric material, wherein the polymeric material is polymerized by the polymerization As the upstream of the processing space is transported to a selected path of the selectable path, the polymeric material ceases to be transported by the selected path to the downstream. Further, wherein at least two of said paths are connected upstream of the polymer processing space, such that the polymer material is selectively passed from the upstream of the polymer processing space through the switching device to the at least two of the paths of the 099145967 form No. A0101 Page 16 of 62 Page 0992079096-0 201226458 The selected path is transported. Further, wherein the at least two of the paths are connected to the downstream by a switching device such that when the polymeric material is transported from the selected path to the downstream, the polymeric material ceases to be upstream of the selectable path The selected path is delivered. Further, wherein the polymeric material is transported downstream of the selected path, the polymeric material ceases to be transported from the upstream of the selectable path to the selected path. Further, the above method of the present invention wherein the foamed product is formed comprises a 挤 extruded foamed product or a molded foamed product or a blown foamed product or an injection molded foamed product. Further, the process of the present invention can be extended to technical production for extrusion, injection molding, molding or other foaming processes. The method of the present invention provides for introducing a blowing agent in a gaseous state in a polymer processing system and promoting a polymer mixture formed by the molten polymer and the blowing agent to be transported through a selectable path in a downstream direction; A non-nucleated, homogeneous, fluid, single phase solution is obtained in the downstream direction; and a foamed product of the polymer is formed from the single phase solution. Because the polymeric material is transported from upstream of the polymeric processing space to a selected path of the selectable path, the polymeric material ceases to be transported from the selected path to the downstream; and, the polymeric material is When the selected path is transported downstream, the polymeric material ceases to be transported upstream of the selectable path to the selected path. Enabling the method of the present invention to achieve a controlled pressure to obtain the single phase solution in the downstream direction, and the variation of the control pressure during the obtaining of the single phase solution does not affect the introduction of the blowing agent; or control in the downstream direction The pressure to maintain the obtained single-phase solution, and the maintenance of the single 099145967 Form No. A0101, page 17 / page 62, 0992079096-0 201226458 phase of the change in the control pressure does not affect the introduction of the blowing agent. In addition, in the actual implementation of the present invention, as in the conventional technology, in order to prevent the gas chamber growth of the nucleation material in the cavity, the structure and control of the cavity may be arranged as: nucleating the liquid on the nucleating liquid The pressure is raised in the downstream direction so that the uniform foamed article of the desired fine cells can be obtained after the liquid is solidified. The additional advantages, novel features and objects of the present invention will become apparent from the Detailed Description of the invention. In the drawings, which are illustrated in the accompanying drawings, the embodiments of the embodiments of the invention And not all of the components in each of the embodiments are shown in the drawings; and in the description of the present invention, only the schematic views are shown, and the complete illustration is not drawn in actual size. Moreover, in the drawings of the different figures, each identical or nearly identical component in the various figures is represented by the same numeral. [Embodiment] The foaming agent of the present invention may contain a chemical foaming agent or a nucleating agent, but it is more preferable to use a pure physical foaming agent. Due to the use of chemical blowing agents, chemical reaction by-products of unreacted chemical blowing agents or chemical blowing agents are often left on the products; making use of chemical blowing agents is not conducive to product recycling and recycling, and general chemistry The cost of the blowing agent is also high. The present invention makes it possible to manufacture a polymer foamed product of an atmospheric chamber. However, when the present invention is used to manufacture a microcellular foamed product, and the desired gas cell density is very high, the nucleating contribution of the 099145967 nucleating agent is meaningless, so that a nucleating agent is rarely used. Form No. A0101 Page 18 of 62 0992079096-0 201226458 The physical blowing agent used in the present invention is a gas under atmospheric conditions. The physical blowing agent may be any of various known in the ordinary foaming technique. Physical blowing agents such as carbon dioxide, nitrogen, hydrocarbons, fluorocarbons, and the like, and mixtures thereof. Among them, the blowing agent is preferably carbon dioxide, or nitrogen, or a mixture thereof. Although it is preferred to add a liquid blowing agent as compared to the addition of a gas blowing agent, it is more preferred to add a supercritical fluid blowing agent, particularly a supercritical fluid of carbon dioxide, or nitrogen, or a mixture thereof.

在本發明中,雖然二氧化碳或氨的超臨界流體可與 其他發泡劑一起聯合使用;但常僅使用二氧化碳或氮其 中之一的超臨界流體作為發泡劑。In the present invention, although a supercritical fluid of carbon dioxide or ammonia can be used in combination with other blowing agents, a supercritical fluid of one of carbon dioxide or nitrogen is often used as a blowing agent.

因物質的超臨界相具有液體與氣體的特徵,當物質的壓 力與溫度保持在大於該物質材料的超臨界學力與溫度時 ,其超臨界流體材料有類似液體的溶解能力,且表面張 力大幅降低,使加入超臨界流體至擠塑機内與溶融聚合 物溶液混合時,易於在數秒内將超臨界流體與熔融聚合 物相互溶解形成均質的單相溶液。其中,諸如二氧化碳 的超臨界相的超臨界壓力與溫度分別約為31„c與1〇7〇 psi,氮的超臨界相的超臨界壓力與溫度分別約為-147。 C與500 psi 〇 而且,對於單相溶液的成核操作,已知在相同成核 條件下’當熔融聚合物中超臨界流體的溶解度減少時, 聚合物的發泡產品中氣室密度隨之降低。此外,在一此 研究中揭示,對200 °C溫度下的一些聚合物,當在單相溶 液上的保持壓力大於22 MPa (3200 psi)時,最高可 溶解在聚合物内的超臨界一乳化碳被估計為可超過按重 099145967 表單編號A0101 第19頁/共62頁 0992079096-0 201226458 量的7.5% ;以及當在單相溶液上的保持壓力超過4000 psi之上時,最高可溶解在那些聚合物内的超臨界二氧化 碳被估計為超過按重量計的10%。其被注意到二氧化碳的 最高可溶解度,隨著在單相溶液上的保持壓力的增加而 增加。 本發明系統例示的螺桿可如同現有發泡成型技術, 作為混合發泡劑與熔融聚合物之用,其有大量不規則葉 片,螺桿不斷攪動摻雜發泡劑的熔融聚合物。在一些情 況下,現有技術使用一標準螺桿替代該含不規則葉片的 螺桿,所產生的混合作用,即足以提供需要的混合。有 時,簡單的螺桿運動不能完成足夠混合,必需在系統中 引入各種各樣的混合部分,例如靜態混合器。而且,為 迅速組成單相溶液,可適宜增加熔融聚合物的溫度;因 隨著溫度增加,將提升超臨界流體的擴散速率,進一步 加速單相溶液的獲得。 第一圖系統為傳統系統的一組成示意圖,傳統上將 發泡劑的引入與溶解操作從注射與成型操作中分離,使 注射產生的瞬間高壓不會影響發泡劑的引入與溶解。本 發明方法以第一圖系統操作時,與傳統方法的主要不同 為:分離發泡劑的引入操作與溶解發泡劑獲得單相溶液 的溶解操作,使發泡劑的引入壓力與獲得單相溶液的施 加壓力可被獨立控制,以相對降低引入發泡劑的需要壓 力,並易於在單相溶液成核前提供更高的施加壓力。該 系統包括連接有輸氣裝置、料斗、加熱裝置的加料筒, 加料筒内設有與旋轉驅動機構連接的螺杆,加料筒的前 端分別與兩儲料筒的内腔連通,作為出料筒的儲料筒的 099145967 表單編號A0101 第20頁/共62頁 0992079096-0 201226458 内腔與射嘴連通,且有閥門控制射嘴的打開或關閉,並 於射嘴打開時連通儲料筒與模具的模腔。 對第一圖系統,依據本發明方法的第一實施方案的 工作過程是:一種顆粒狀的聚合物材料經過一料斗109進 入作為加料筒的加工裝置101中被加熱成熔融狀態,並與 被引入的超臨界流體發泡劑混合;來自加料筒中的熔融 聚合物混合物通過連接通道102經由開關103被可選擇的 加入配備柱塞的儲料筒108的其中之一,連接通道102中 可安置作為混合用的靜態混合器;當熔融聚合物混合物Because the supercritical phase of a substance has the characteristics of liquid and gas, when the pressure and temperature of the substance are kept above the supercritical scholastic force and temperature of the material, the supercritical fluid material has a liquid-like solubility and the surface tension is greatly reduced. When the supercritical fluid is added to the extruder and mixed with the molten polymer solution, it is easy to dissolve the supercritical fluid and the molten polymer in a few seconds to form a homogeneous single-phase solution. Among them, the supercritical pressure and temperature of the supercritical phase such as carbon dioxide are about 31 „c and 1〇7〇psi, respectively, and the supercritical pressure and temperature of the supercritical phase of nitrogen are about -147. C and 500 psi 〇 For the nucleation operation of a single-phase solution, it is known that under the same nucleation conditions, when the solubility of the supercritical fluid in the molten polymer is reduced, the density of the gas in the foamed product of the polymer is reduced. The study revealed that for some polymers at 200 °C, when the holding pressure on a single-phase solution is greater than 22 MPa (3200 psi), the supercritical emulsified carbon that is most soluble in the polymer is estimated to be Exceeding the weight 099145967 Form No. A0101 Page 19 / Total 62 pages 0992079096-0 201226458 7.5% of the amount; and when the holding pressure on the single-phase solution exceeds 4000 psi, the highest soluble in those polymers The critical carbon dioxide is estimated to exceed 10% by weight. It is noted that the highest solubility of carbon dioxide increases as the holding pressure on the single phase solution increases. The screw exemplified by the system of the present invention As with the existing foam molding technology, as a mixed foaming agent and a molten polymer, it has a large number of irregular blades, and the screw continuously agitates the molten polymer doped with the foaming agent. In some cases, the prior art uses a standard. The screw replaces the screw with irregular blades, and the resulting mixing is sufficient to provide the required mixing. Sometimes, simple screw motion does not allow for sufficient mixing, and various mixing parts must be introduced into the system, such as static mixing. Moreover, in order to rapidly form a single-phase solution, the temperature of the molten polymer can be appropriately increased; as the temperature increases, the diffusion rate of the supercritical fluid is increased, and the single-phase solution is further accelerated. The first system is a conventional system. A schematic diagram of a composition that traditionally separates the introduction and dissolution of the blowing agent from the injection and molding operations so that the instantaneous high pressure generated by the injection does not affect the introduction and dissolution of the blowing agent. The method of the present invention operates in a first diagram system The main difference from the conventional method is that the introduction of the separation foaming agent and the dissolution of the foaming agent are obtained. The dissolution operation of the phase solution allows the introduction pressure of the blowing agent and the application pressure of the single-phase solution to be independently controlled to relatively reduce the pressure required to introduce the blowing agent, and to provide a higher degree before the nucleation of the single-phase solution. Applying pressure. The system comprises a charging cylinder connected with a gas conveying device, a hopper and a heating device, wherein the feeding cylinder is provided with a screw connected with the rotary driving mechanism, and the front end of the feeding cylinder is respectively connected with the inner cavity of the two storage cylinders as a 099145967 of the barrel of the barrel Form No. A0101 Page 20 of 62 0992079096-0 201226458 The inner chamber is connected to the nozzle, and the valve controls the opening or closing of the nozzle, and connects the storage barrel when the nozzle is opened. The cavity with the mold. For the first graph system, the working process of the first embodiment of the method according to the invention is such that a granular polymer material is heated into a molten state through a hopper 109 into a processing device 101 as a charging cylinder, and is introduced The supercritical fluid blowing agent is mixed; the molten polymer mixture from the charging cylinder is selectively introduced into one of the plunger-equipped storage tanks 108 via the connecting passage 102 via the switch 103, and the connecting passage 102 can be disposed as a mixture Static mixer used; when molten polymer mixture

經由開關103先對其中之一的儲料筒108計量加料時,引 起該其中之一的儲料筒108的柱塞後退,通過控制柱塞以 控制熔融聚合物混合物的壓力,以防止已部分溶解的發 泡劑分離;在該其中之一的儲料筒計量完成後,接著進 一步提高該其中之一的儲料筒中料液上的施加壓力,並 持續一段時間直到發泡劑完全溶解,使料液形成一種非 成核、均質、流體、單相的溶液,而後注射儲料筒中的 料液至相對應的模具中成型;在該其中之一的儲料筒進 ❹ 行完全溶解與注射的同時,加料筒101經開關103對該其 中之一的儲料筒閉合而對另一儲料筒連通以計量加料, 當該另一儲料筒計量完成後,接著進一步對該另一儲料 筒中料液上的施加壓力提供持續一段時間的更高持續壓 力,直到該另一儲料筒中的料液形成一種非成核、均質 、流體、單相的溶液,而後注射料液至相對應的模具中 成型;在該另一儲料筒進行完全溶解與注射的同時,加 料筒101經開關103對該另一儲料筒閉合而對原先的該其 099145967 中之一的儲料筒連通以計量加料;如此交替加料、形成 表單編號A0101 第21頁/共62頁 0992079096-0 201226458 單相溶液、注射,以生纽射成型 以第一圖系統完成本發明方法時1 *發泡產品。 引入操作與發泡劑的完全溶解操作分,因為將發泡劑的 在注射料液前發泡劑完全溶解,必杂 造成為了確保 -段適當時間的足夠高的屋力=提供持續 合物的流動混合物形成單相溶液。 /射料液前聚 的計量加料步驟已完成,而之 可迠發生當前 溶液步驟尚未結束,迫使發泡劑>β劑溶解形成單相 為了確保發泡劑的完成溶解而必需二是 ,迫使發泡產品的製造週期顺增加n。里j度 已計量完錢簡筒巾的單相溶㈣成,了等待 加更多額外的與模具的模腔連通的儲胃= 開關間的控制’以解決上述困擾。例如.,已2外的 的儲料筒中的單相溶液尚未形成時,可藉:開關= 加雖通至其他的額外儲料筒,並於那些額:= #里加制,4之前__所騎的單相溶液 =射=;以製成想要的發泡產品, =二=溶液、注射以連續生產注射成型的微孔 發泡產…但此種改善’對生產較大重量的發泡產品, 常需更多的額外儲料筒與 過度提升。 __應賴具,料成成本的 如上述所7F ’本發明以第—圖傳統***提供 單相溶液注人模_成發泡產品的方法,該方法獲得該 單相溶液的步驟包含:1)、發泡劑㈣ 有螺桿的加u中輪送聚合物材料,並引入在環境條 件下呈氣態的發泡劑進入該聚合物材料形成聚合物混合 099145967 0992079096-0 表單編號删1 第心共62頁 201226458 物的料液;2 )、*、ι、 、料液輸送的緩衝步驟,輸送該料液從該 …裝置的出口進入一被選擇的儲料筒,且控制屋力使 H 乂的錢&劑的—部分溶解於該聚合物材料中;3) Μ液的獲*步驟,控制愿力使該被選擇的儲料筒 ι =料液的該發%劑與該聚合物材料相互溶解,以獲 ^早相4液’其中該獲得單相溶液過程中該控制屋力 的變動不影塑兮·益^When the one of the storage bins 108 is metered in via the switch 103, the plunger of the one of the reservoirs 108 is caused to retreat, and the pressure of the molten polymer mixture is controlled by controlling the plunger to prevent partial dissolution. The blowing agent is separated; after the storage of one of the cylinders is completed, the applied pressure on the liquid in the one of the storage cylinders is further increased, and continues for a while until the blowing agent is completely dissolved. The liquid forms a non-nucleating, homogeneous, fluid, single-phase solution, and then the liquid in the storage tank is injected into a corresponding mold to form; in which one of the storage tanks is completely dissolved and injected simultaneously The charging cylinder 101 closes one of the storage cylinders via the switch 103 and communicates with another storage cylinder to meter the feeding. After the other storage cylinder is metered, the material is further fed to the other storage cylinder. The applied pressure on the liquid provides a higher sustained pressure for a period of time until the feed liquid in the other storage tank forms a non-nucleating, homogeneous, fluid, single phase solution, and then the feed liquid is injected Forming in the corresponding mold; while the other storage tank is completely dissolved and injected, the charging cylinder 101 is closed to the other storage cylinder via the switch 103 and is connected to the storage drum of one of the original 099145967 The feed is metered; thus alternately fed, forming Form No. A0101 Page 21 / Total 62 pages 0992079096-0 201226458 Single-phase solution, injection, to form a foaming product by the first-picture system to complete the method of the present invention. The introduction of the operation and the complete dissolution operation of the blowing agent, because the foaming agent is completely dissolved in the foaming agent before the injection of the liquid, it must be caused by a sufficiently high house force to ensure a suitable period of time = provide a continuous compound The flowing mixture forms a single phase solution. / The metering and feeding step of the pre-polymerization of the shot liquid has been completed, and the current solution step has not yet ended, forcing the foaming agent > β agent to dissolve to form a single phase. In order to ensure the completion of dissolution of the foaming agent, it is necessary to force The manufacturing cycle of the foamed product is increased by n. In the case of the single-phase solution (four) of the money, the waiter is added to add more extra memory to the cavity of the mold = control between the switches to solve the above problems. For example, if the single-phase solution in the storage cylinder that has been outside 2 has not been formed, you can borrow: switch = add to other additional storage barrels, and in those amounts: = #里加,4 before __ Single-phase solution for riding = shot =; to make the desired foamed product, = two = solution, injection for continuous production of injection-molded microcellular foam production ... but this improvement 'for the production of larger weight foaming Products often require more extra cartridges and excessive lift. The method of obtaining a single-phase solution injection mold into a foamed product according to the conventional system of the first embodiment of the present invention, the method for obtaining the single-phase solution comprises: 1 ), foaming agent (4) There is a screw in the u to transfer the polymer material, and introduce a foaming agent in a gaseous state under ambient conditions to enter the polymer material to form a polymer mixture 099145967 0992079096-0 Form No. 1 62 pages 201226458 The liquid of the material; 2), *, ι, the buffering step of the liquid conveying, transporting the liquid from the outlet of the device into a selected storage tank, and controlling the house force to make H 乂Part of the money & agent is dissolved in the polymer material; 3) the step of obtaining the mash, controlling the force to make the selected hopper of the selected hopper = the liquid and the polymer material Dissolve to obtain the early phase 4 liquid 'the change in the control house force during the process of obtaining the single-phase solution does not affect the plastic 兮· benefits ^

099145967 …泡劑的引入。而且’如第-圖系統的 置的出〇經輪送通道上的開關裝置連接至少兩個 的儲料筒’以輪送該料液從該加卫裝置的出口進入 “、彳述的儲料筒的該魏選择的儲料筒,以實施本發 明方法。 因而’本發明輿現有技術不同。在第一圖系統上 柱塞施加在料液上的 :續兩壓’主要在累積已獲得的單相溶液料液 料液;直為單_液,故無 °射用达的桎塞施加在料液上的控制壓力必須 =時間階段依需要升高施加在料液上的_力’ _中力使料財的發泡劑的1分溶解於聚合物 材料中,以利於發㈣錢低壓力下^ 控制壓力至足夠高的持續壓 後杈开 的單相溶液。 壓力以獲传含較高濃度發泡劑 力的㈣本發明錢得料溶㈣対控制盧 ==__人,,與現有技術相比 ==_發泡劑引入M力下,獲得與現有技 術:取佳可溶解度,或甚至更高。雖然,由於超臨 界流體發_具《錢_溶柯 表單編號删1 第23頁/共62頁 賴的艮好 0992079096-0 201226458 擴散性,使該發泡劑可在短時間内溶入聚合物。但本發 明方法使用第一圖結傳統構實施時,將不利於發泡產品 的生產;此因儲料筒中的單相溶液於靜態下獲得,將導 致發泡劑在混合物中不易均勻分佈。 為改進上述問題,本發明增益傳統系統,提出一種 形成聚合物發泡產品的系統,該系統將聚合物材料向下 游方向的末端出口連接的一帶入口的模腔輸送,並引入 在環境條件下呈氣態的發泡劑進入該聚合物材料,其中 該系統包括:一具有螺桿的加工裝置,該加工裝置的出 口向下游方向輸送熔融聚合物與在環境條件下呈氣態的 發泡劑形成的聚合物混合物的料液;至少兩個儲料筒, 該儲料筒的入口經開關裝置與該加工裝置的出口連接, 以便料液由加工裝置可選擇的輸送至一被選擇的儲料筒 中;至少一出料筒,該出料筒的入口與相應的儲料筒的 出口連接,並於連接的通道上設開關裝置,以便出料筒 接收與該出料筒相應的儲料筒内的料液;以及至少一個 所述的帶入口的模腔,該模腔的入口與相應的該出料筒 的所述的末端出口連接,以便出料筒中的料液移轉至模 腔中。 對於本發明系統在製造聚合物發泡產品時,可將已 完成計量的出料筒4中的料液,如傳統技術在模具的反壓 下移轉單相溶液的料液至模具中,而後維持模具中的壓 力直到模具中型胚的溫度下降到適當的溫度時,瞬間降 低模具中的壓力以允許該型胚發泡,並依需求進一步控 制模具的擴展,以控制發泡產品的泡孔生長。 或是,系統中直接包含一成核裝置,並使出料筒經 099145967 表單編號A0101 第24頁/共62頁 0992079096-0 201226458 成核裝置連通至模腔,以在移轉出料筒中的單相溶液的 料液至該模腔時,使料液經成核裝置造成在其上的迅速 壓降,以獲得成核的聚合物材料前驅物’而後製成聚合 物的發泡產品。 因為在一聚合物材料内超臨界流體的溶解度隨壓力 減少而減少’當儘可能高的瞬間壓降產生,將造成聚合 物材料内的超臨界流體溶解度的迅速下降,使聚合物材 料内生成儘可能高的氣室密度。本發明例示的成核裝置 可如同現有技術,以提供迅速壓降。其中本發明提供迅 Ο 速壓降的成核裝置可以是一狹窄短小的通道。此種狹窄 短小的通道常可視為一平行成核器,使易於引起高的壓 降速率。作為成核裝置的該平行成核器常被置於模腔之 前’如注塑技術中的一射嘴,或是擠塑技術中的鋼模模 口;有時為了阻止料液成核後的氣室增長,而將成核裝 置至模腔之間的距離盡量減小。或是’在擠塑技術中以 一齒輪幫浦替代一平行成核器作為:成籍裝皇。此外,如 傳統擠塑發泡技術,當聚合物材棒連;梅後,在其上保持 〇 足夠的高壓’以防止氣室的顯著增長;而且控制模腔中 的成核聚合物材料上的施加壓力向下游方向增長或減弱 ,以控制發泡產品中的泡孔尺寸。 在之後的第二圖〜九圖中的示意圖中,為清楚表達, 使熟悉此技術的人易於理解本發明,僅只說明本發明系 統需要理解的部份組成’描述如何實施本發明方法。 發泡劑的提供系統11藉由在普通發泡技術中使用的 傳統加壓工具與計量工具以提供一被計量的發泡劑,該 被計量的發泡劑在一被控制的速率上經由發泡劑供應口 099145967 表單編號A0101 第25頁/共62頁 201226458 被提供至加料筒1中。經過一料斗12進入加料筒1中的聚 合物材料被熔融,以透過在加料筒1中的螺桿13旋轉所產 生的機械剪切力量造成在聚合物材料上的摩擦力,以及 透過在當螺桿13載運聚合物材料通過料管時加熱料管。 螺桿13的攪拌,可使熔融聚合物與由發泡劑的提供系統 11提供的被計量數量的發泡劑藉由切變力混合在高保持 壓力之上,以形成聚合物的一流動混合物。來自加料筒1 中的聚合物混合物被可選擇的通過連接通道3加入配備柱 塞21的儲料筒2的其中之一。在連接通道3中有作為開關 用途的一球式止逆閥31,且連接通道3中可視需要安置作 為混合用的靜態混合器或類同物。 在柱塞21上的活塞22可作為儲料筒2中料液的背壓 控制,並控制儲料筒2中料液的增加與減少。柱塞41上的 活塞42,可作為出料筒4中料液的背壓控制,並控制出料 筒4中料液的增加與減少,以及視需要提供注射需求。連 接通道3中的球式止逆閥31可替代以閥門或作為開關用的 其他類同物,在此使用球式止逆閥3作為開關用可簡化系 統控制。例如:想要加料筒1中的熔融聚合物混合物被連 通至某一儲料筒2時,可控制該某一儲料筒2内的壓力某 種程度的低於加料筒1的出口壓力;而當控制該某一儲料 筒2内的壓力某種程度的高於加料筒1的出口壓力時,可 使該某一儲料筒2的聚合物混合物與加料筒1的出口不連 通。此種控制方式,可穩定加料筒1中的壓力,並在壓力 控制的同時,完成開關控制。當然,也可在此以開關閥 替代球式止逆閥,完成開關動作。 在連接通道5中作為開關用的閥門51可替代以球式止 099145967 表單編號A0101 第26頁/共62頁 0992079096-0 201226458 逆閥或其他開_同物’在關卩151僅只作關示。當 控制該某-儲料筒2内的出口壓力高於其對應的出料筒田4 的壓力時,可控制以使閥門51連通。反之,當控制該某 -儲料筒2内的出口屋力低於其對應的出料筒*的壓力時 ,可令闕門51截止。當出料筒4中的料液計量完成後,將 出料筒4中被計量的料液經由閥門6的控制,以移轉至對 應的模具中製成聚合物發泡產品,或在模具的反愿下移 轉單相溶液至模具中,以獲得該發泡產品的型胚,而後 用於之後的模塑或吹塑的發泡產品的製造需要。例如; 〇 在獲得該發泡產品的型胚之後,維持模具中的壓力直到 該型胚的溫度下降到適當的溫度時,降低模具中的壓力 以允許該型胚發泡,或是進„_步控制模具的擴展,以控 制發泡產品的泡孔生長。 在之後例示的本發明示意圖中,儲料筒2或出料筒4 中作往復運動用的柱塞可與帶往復運動的螺桿相互替代 ;其中,如同現有發泡成型技術,螺桿可有大量不連續 螺紋,螺桿的不斷攪動’即可提供料液需要的混合。在 〇 —些情況下,現有技術使用一標準螺桿所產生的混合作 用,即足以提供需要的混合。在另外一些情況下,提供 料液混合使用的螺桿不含壓縮段,以利於螺桿在高壓下 不斷攪動。但對使用柱塞,在一些情況下,本發明系統 中的料液在向下游方向的流動過程中,流經通道中的混 合裝置’即可提供在高壓下的足夠均勻混合。而且,使 用柱塞,有利於成本降低。 對使用本發明方法的第一圖傳統系統,其在注射料 液前,即使作為出料筒的儲料筒中的壓力高於溶解度所 099145967 料編號 _ 第 27 頁/共 62 頁 0992079096_0 201226458 需壓力,由於靜態下聚合物混合物中的發泡劑易擴散不 足,或滯留時間不足而使發泡劑可能無法均勻溶解於聚 合物中,而不利於迅速與均勻的組成單相溶液。 為改進上述困擾,本發明增益第一圖傳統系統,增 加一額外儲料筒2連通在加料筒1與出料筒4之間,並使每 個儲料筒的出口各自連接一個出料筒的入口,以實施依 據本發明方法的第二實施方案。 如第二圖與第三圖例示的本發明系統組成示意圖, 類同於傳統形成發泡產品的系統,都是將聚合物材料向 下游方向出料筒的末端連接的帶入口的模腔輸送,並引 入在環境條件下呈氣態的發泡劑進入該聚合物材料。對 例示在第二圖與第三圖的本發明系統,其中包括:一具 有螺桿的加工裝置;兩個儲料筒,其中儲料筒的入口經 開關裝置與加工裝置的出口連通;兩個出料筒,其中每 個出料筒的入口與一相應的儲料筒的出口連接,並於連 接的通道上設開關裝置;以及兩個帶入口的模腔,其中 每個模腔的入口與相應的出料筒的末端出口連接。與傳 統系統不同,本發明的此種增益,使單相溶液的獲得步 驟可改進為:輸送料液從被選擇的儲料筒進入與該被選 擇的儲料筒連接的一出料筒,並控制壓力使料液中的發 泡劑與聚合物材料相互溶解,以獲得該單相溶液。本系 統中的額外儲料筒在此提供額外動態混合,以利於迅速 與均勻的組成單相溶液。 如第二圖或第三圖例示的系統,當加料筒中1的熔融 聚合物混合物經由控制儲料筒2的其中之一計量加料時, 引起其中之一的儲料筒2的柱塞21後退,通過控制柱塞21 099145967 表單編號A0101 第28頁/共62頁 0992079096-0 201226458 以控制熔融聚合物混合物的壓力,防止已部分溶解的發 泡劑分離;當該其中之一的儲料筒2計量完成後,接著對 該其中之一的儲料筒2提高壓力,使球式止逆閥31截止連 通;而後打開閥門51,通過控制柱塞21與柱塞41,以控 制熔融聚合物混合物在更高的足夠高的壓力下由該其中 之一的儲料筒2經通道5移動至對應的出料筒4中,因而獲 得成一種非成核、均質、流體、單相的溶液在該出料筒4 中;在該其中之一的儲料筒2的聚合物混合物在通過控制 柱塞21提供更高壓力下進行由該其中之一的儲料筒2移動 〇 至對應的出料筒4中的同時,控制另一儲料筒2的柱塞21 以降低其上的背壓,使與該另一儲料筒2連通的加料筒1 中的聚合物混合物對該另一儲料筒2計量加料;當該另一 儲料筒2計量加料完成後,接著對該另一儲料筒2提高壓 力,以使加料筒1與該另一儲料筒2截止連通,並控制熔 融聚合物混合物在足夠高的壓力下由該另一儲料筒2經通 道5移轉至對應的出料筒4中,因而獲得成一種非成核、 均質、流體、單相的溶液在該出料筒4中。如此交替加料 〇 、移轉料液至對應的出料筒4中。其中,當各出料筒4中 的料液在更高的足夠高的壓力下計量完成後,經由閥門6 與活塞42的控制,將出料筒4中被計量的料液注射至對應 的模具中製成聚合物發泡產品,或在模具的反壓下移轉 單相溶液至對應的模具中,而後用於之後的模塑發泡產 品的製造需要。 本發明方法藉由本發明系統中的額外儲料筒作為緩 衝的幫助,使得對於控制聚合物混合物的料液由加料筒1 經過儲料筒2而至對應的出料筒4,並在對應的出料筒4中 099145967 表單編號A0101 第29頁/共62頁 0992079096-0 201226458 形成單相、非核、均勻的料液的加工過程中,於料液上 的施加控制壓力依加工需要分階段升高時,不影響加工 過程中的發泡劑引入。其中,在於藉由獲得該單相溶液 的施加壓力,與在加料筒1中的聚合物混合物的施加壓力 去耦合,以在獲得單相溶液過程中該控制壓力的變動不 影響該發泡劑的引入,使本發明的出料筒4中單相溶液上 的施加壓力在注射前可易於一直保持高於需要的壓力。 本發明中,因發泡劑的引入壓力藉由本發明方法或/和本 發明系統的助益,使出料筒4中的壓力可更易於提供更高 於獲得單相溶液需要的持續壓力,因而與傳統方法相較 ,本發明相對更利於防止壓力或溫度波動造成的料液成 核。 本發明系統的結構不同於傳統系統結構,其中額外 儲料筒2可提供熔融聚合物混合物由儲料筒2至對應的出 料筒4的額外動態移轉過程,有助於提供均勻混合,以迅 速與均勻的組成單相溶液,而且適宜地增加炫融聚合物 的溫度也是必要的,因隨溫度的增加,使超臨界流體的 擴散速率被提升以加速獲得單相溶液。 相對於第二圖系統,第三圖系統在連接通道5中引入 各種各樣如靜態混合器之類的混合裝置,以利於確保在 出料筒4中獲得單相溶液是均勻的。有時,為了確保完成 足夠混合,必需在本發明系統中進一步引入各種各樣的 混合部分。 本發明方法的第二實施方案可加以變異,加料筒1中 的熔融聚合物混合物的料液對儲料筒2的其中之一依序計 量加料時,每一儲料筒2不需達到足夠的計量。當其中之 099145967 表單編號A0101 第30頁/共62頁 0992079096-0 201226458 ❹ Ο 099145967 量加料時,另一儲料筒2中的料液同時在 门查力下由儲料筒2移動至對應的出 =力:形成單相溶液的料液,直到某-出料筒二 战i此種知作,出料筒4中 二直保持很高的足編,此雖不利於控:出;射二 穩疋主入料液與獲得均勻單相溶液的料液,但儲料扪 的内容積可較小’而利於減少成本與體積。此外,前述 狀況,雖以多個出料筒各自對應至各自的模具例示,但 類同於傳統卫藝’其可將飾出料制時對應至-個模 具β 第四圖為本發明系統的另一變異的組成示意圖可 說明依據本伽方法的第三與第四實施方案。在第四圖 中,本發明系統的全部儲料筒2的出口經開關裝置連接同 :出料筒4的入口,以及出料筒的出口經成核裝置連通至 帶入口的模腔,以利於應用本發明方法至擠塑之類的 連續發泡加工技術,與減少零組件。 、對/主塑之類的不連續發泡加工技術,依據本發明方 法的第三實施方案,如第四圖系統的例示,當加料筒!中 的溶融聚合物混合物的料液經由控制儲料筒2的其中之-4量加料時,引起其中之一的儲料筒2的柱塞21後退通 過控制柱塞2Ux控㈣液上㈣力,防止已部分溶解的 發泡劑分離;當該其令之一的儲料筒2計量完成後,接著 對該其中之一的儲料筒2提高壓力,使球式止逆閥31截止 連通;而後打開閥門51,通過控制柱塞21與柱塞41,以 控制料液上的麼力在更高較夠高的Μ力下由該其中之 表單編號Α0101 « -- 第31頁/共62頁 0992079096-0 201226458 的儲料筒2經通道5轉备f 庙以, 移動至對應的出料筒钟,並在該出 =4中麟料液為—種非成核、均質、流體、單相的溶 之审在4其中之—的儲料筒2的料液在通過控制柱塞 供更高壓力下進行由兮攸 〜、中之一的儲料筒2移動至對應的 出,中的同時,控制另一儲料筒2的柱塞心降低其 的月壓使與該另—儲料筒2連通的加料筒1中的料液 =另-儲料筒2計量加料;在另—館料筒2計量加料的 私中’控制該出料筒4中的料液計量,使該出料筒4令 :料液在更高的足夠高的屋力下計量完成,而後經由間 活塞42的控制,注射在出料筒4中已計量完成的單 1 目溶液的料液至模具的模腔中成型;當該另-儲料筒2計 里加料完成後’接著對該另一储料筒2提高遂力,以使加 料筒1與該另一儲料筒2截止連通,並控制料液上的屋力 在足夠高的勤下由該另一儲料筒2移轉至對應的出料筒 ,並在該出料筒4中獲得料液為-種非成核、均質、 流體、單相的溶液。如此交_料、移轉料液至該出料 筒4中,以及移轉該出料筒得锋計量的料液至模具的模 腔中,而後獲得聚合物發泡產品。 為了實施上述本發明方法的第三實施方案,上述儲 料筒2的計量加料的速度需慢於上述出料筒*中的計量加 料的速度。 然而,對本發明方法的第三實施方案的另一狀況 當上述儲料筒2的計量加料的速度快於出料筒4中的計量 加料的速度時,將造成上述儲料筒2計量已完成,而該出 料筒4中的料液仍未完成計量加料的動作,則加料筒艸 099145967 =Γ暫停’直到該出料筒4中的料液完成計量加 表單編號Λ0101 第32頁/共62頁 201226458 料·099145967 ...Introduction of foaming agents. Moreover, 'the storage device on the transfer channel of the first-picture system is connected to at least two storage cylinders' to transfer the liquid liquid from the outlet of the security device into the storage material. The Wei selected cartridge is used to carry out the method of the invention. Thus the invention differs from the prior art. On the first system, the plunger is applied to the feed liquid: the two pressures are mainly obtained in the accumulation. The single-phase solution liquid liquid; straight to the single liquid, so the control pressure applied to the liquid liquid without the use of the damper must be = the time period needs to increase the _ force applied to the liquid _ The medium force makes 1 part of the foaming agent of the material dissolve in the polymer material, so as to facilitate the (four) money under low pressure, control the pressure to a sufficiently high continuous pressure to open the single-phase solution. High concentration foaming agent force (4) The invention is dissolved in the material (4) 対 control Lu == __ human, compared with the prior art == _ foaming agent is introduced under M force, obtained with the prior art: taking good solubility , or even higher. Although, due to the supercritical fluid hair _ have "money _ _ Ke form number delete 1 page 23 / a total of 6 2 pages of 艮 0 0992079096-0 201226458 diffusivity, so that the blowing agent can be dissolved into the polymer in a short time. However, the method of the present invention using the first structure of the conventional structure will be detrimental to the production of foamed products. This is because the single-phase solution in the storage tank is obtained under static conditions, which will result in the foaming agent not being uniformly distributed in the mixture. In order to improve the above problem, the present invention provides a system for forming a polymer foamed product, which is a conventional system. The system transports the polymer material into a cavity with an inlet port connected to the downstream end of the inlet, and introduces a blowing agent which is gaseous under ambient conditions into the polymer material, wherein the system comprises: a processing device having a screw, The outlet of the processing device transports a feed liquid of a polymer mixture formed by a molten polymer and a foaming agent in a gaseous state under ambient conditions in a downstream direction; at least two storage cylinders, the inlet of the storage cylinder being connected to the switch device An outlet connection of the processing device such that the feed liquid is selectively transportable by the processing device to a selected storage cartridge; at least one discharge cylinder, the discharge cylinder The inlet is connected to the outlet of the corresponding storage cylinder, and a switching device is arranged on the connecting passage, so that the discharge cylinder receives the liquid in the storage cylinder corresponding to the discharge cylinder; and at least one of the inlets with the inlet a cavity, the inlet of the cavity being connected to the corresponding end outlet of the discharge cylinder, so that the liquid in the discharge cylinder is transferred into the cavity. For the system of the present invention, in the manufacture of a polymer foamed product, The liquid in the discharge cylinder 4 that has been metered can be transferred to the mold by the conventional technique under the back pressure of the mold to the mold, and then the pressure in the mold is maintained until the temperature of the parison in the mold drops to At the appropriate temperature, the pressure in the mold is instantaneously reduced to allow the embryo to be foamed, and the expansion of the mold is further controlled as needed to control the cell growth of the foamed product. Alternatively, the system directly includes a nucleation device. And the discharge cylinder is connected to the cavity through 099145967 Form No. A0101, page 24/62, 0992079096-0 201226458, to transfer the liquid of the single-phase solution in the discharge cylinder to the cavity. Liquid Means nucleation rapidly causing the voltage drop thereon, to obtain a nucleated polymeric material precursor 'is then made of polymer foam products. Because the solubility of the supercritical fluid in a polymer material decreases with decreasing pressure, 'when the instantaneous pressure drop is as high as possible, it will cause a rapid decrease in the solubility of the supercritical fluid in the polymer material, resulting in the formation of the polymer material. Possible high chamber density. The nucleation apparatus exemplified by the present invention can be as prior art to provide rapid pressure drop. The nucleating device in which the present invention provides a rapid pressure drop can be a narrow and short passage. Such narrow, short passages are often viewed as a parallel nucleator, which tends to cause high pressure drop rates. The parallel nucleator as a nucleation device is often placed in front of the cavity, such as a nozzle in injection molding technology, or a steel die in extrusion technology; sometimes to prevent gas from nucleating after the liquid is nucleated The chamber grows while the distance between the nucleation device and the mold cavity is minimized. Or 'in the extrusion technology, a gear pump is used instead of a parallel nucleator as: In addition, as in conventional extrusion foaming technology, when the polymer material is spliced; after the plum, it maintains a sufficient high pressure on it to prevent a significant increase in the gas chamber; and control the nucleation of the polymer material in the cavity The applied pressure is increased or decreased in the downstream direction to control the cell size in the foamed product. In the following figures in the second to ninth figures, for the sake of clarity, the person skilled in the art will readily understand the present invention, and only the part of the system to be understood by the present invention will be described to describe how to carry out the method of the present invention. The blowing agent supply system 11 provides a metered blowing agent by means of conventional pressurizing tools and metering tools used in conventional foaming techniques, the metered blowing agent being delivered at a controlled rate Foam supply port 099145967 Form No. A0101 Page 25 of 62201226458 is supplied to the charging cylinder 1. The polymer material that has entered the charging cylinder 1 through a hopper 12 is melted to cause friction on the polymer material by the mechanical shearing force generated by the rotation of the screw 13 in the charging cylinder 1, and through the screw 13 The tube is heated while carrying the polymer material through the tube. Stirring of the screw 13 allows the molten polymer to be mixed with a metered amount of blowing agent provided by the blowing agent supply system 11 by a shearing force above a high holding pressure to form a flowing mixture of polymers. The polymer mixture from the charging cylinder 1 is optionally introduced into one of the cartridges 2 equipped with the plug 21 through the connecting passage 3. In the connecting passage 3, there is a ball type check valve 31 for use as a switch, and a static mixer or the like for mixing may be disposed in the connecting passage 3 as needed. The piston 22 on the plunger 21 acts as a back pressure control for the feed liquid in the cartridge 2 and controls the increase and decrease of the feed liquid in the cartridge 2. The piston 42 on the plunger 41 serves as a back pressure control for the feed liquid in the discharge cylinder 4, and controls the increase and decrease of the feed liquid in the discharge cylinder 4, as well as the need for injection as needed. The ball type check valve 31 in the connecting passage 3 can be used in place of a valve or other similar type of switch, and the use of the ball type check valve 3 as a switch here simplifies system control. For example, when the molten polymer mixture in the charging cylinder 1 is to be connected to a certain storage cylinder 2, the pressure in the certain storage cylinder 2 can be controlled to be somewhat lower than the outlet pressure of the charging cylinder 1; When the pressure in the certain hopper 2 is controlled to be somewhat higher than the outlet pressure of the charging cylinder 1, the polymer mixture of the certain hopper 2 can be disconnected from the outlet of the charging cylinder 1. This type of control stabilizes the pressure in the charging cylinder 1 and completes the switching control while the pressure is being controlled. Of course, it is also possible to replace the ball type check valve with an on-off valve to complete the switching action. The valve 51 used as a switch in the connecting passage 5 can be replaced by a ball. 099145967 Form No. A0101 Page 26 of 62 0992079096-0 201226458 The reverse valve or other open-closed item 151 is only for indication. When the outlet pressure in the certain - storage cylinder 2 is controlled to be higher than the pressure of its corresponding discharge drum 4, it is controlled to allow the valve 51 to communicate. On the other hand, when the pressure of the outlet in the certain storage cylinder 2 is controlled to be lower than the pressure of the corresponding discharge cylinder*, the card 51 can be closed. After the metering of the liquid in the discharge drum 4 is completed, the metered liquid in the discharge drum 4 is controlled by the valve 6 to be transferred to the corresponding mold to form a polymer foamed product, or in the mold. It is counterproductive to transfer the single phase solution to the mold to obtain the preform of the foamed product, which is then used in the subsequent manufacture of the molded or blow molded foamed product. For example; after obtaining the parison of the foamed product, maintaining the pressure in the mold until the temperature of the parison drops to an appropriate temperature, reducing the pressure in the mold to allow the embryo to foam, or Step-controlling the expansion of the mold to control the cell growth of the foamed product. In the schematic diagram of the invention exemplified hereinafter, the plunger for reciprocating movement in the cartridge 2 or the discharge cylinder 4 can be mutually reciprocated with the screw Instead, as with existing foam molding techniques, the screw can have a large number of discrete threads, and the constant agitation of the screw can provide the desired mixing of the feed liquid. In some cases, the prior art uses a standard screw to produce the mixing. The effect is sufficient to provide the desired mixing. In other cases, the screw used to provide the mixing of the feed liquid does not contain a compression section to facilitate constant agitation of the screw under high pressure. However, in some cases, the system of the present invention is used. In the flow in the downstream direction, the mixing device flowing through the channel can provide sufficient uniform mixing under high pressure. Moreover, the column is used. For the cost reduction of the first system using the method of the invention, even before the injection of the liquid, even if the pressure in the storage tank as the discharge cylinder is higher than the solubility, the number is 099145967. Page 0992079096_0 201226458 Pressure is required, because the foaming agent in the polymer mixture is not easily diffused under static conditions, or the residence time is insufficient, the foaming agent may not be uniformly dissolved in the polymer, which is unfavorable for the rapid and uniform composition of the single phase solution. In order to improve the above-mentioned problems, the present invention gains the conventional system of the first figure, adding an additional storage drum 2 to communicate between the charging cylinder 1 and the discharge cylinder 4, and connecting the outlets of each storage cylinder to one discharge cylinder Inlet to carry out the second embodiment of the method according to the invention. The schematic diagram of the system of the invention as illustrated in the second and third figures, similar to the conventional system for forming foamed products, is to carry the polymer material downstream The cavity with the inlet connected to the end of the discharge barrel is conveyed, and a blowing agent which is gaseous under ambient conditions is introduced into the polymer material. The system of the present invention of the second and third figures includes: a processing device having a screw; two storage cylinders, wherein the inlet of the storage cylinder is in communication with the outlet of the processing device via the switching device; and two discharge cylinders, wherein The inlet of each discharge cylinder is connected to the outlet of a corresponding storage cylinder, and a switching device is arranged on the connecting passage; and two cavities with inlets, wherein the inlet of each cavity and the corresponding discharge cylinder The end outlet connection. Unlike conventional systems, such a gain of the present invention allows the step of obtaining a single phase solution to be improved by: delivering a feed liquid from a selected cartridge into a connection to the selected cartridge Discharging the cartridge and controlling the pressure to dissolve the blowing agent in the feed solution with the polymeric material to obtain the single phase solution. The additional storage cartridge in the system provides additional dynamic mixing to facilitate rapid and uniform mixing. Make up a single phase solution. As the system illustrated in the second or third embodiment, when the molten polymer mixture in the charging cylinder 1 is metered by controlling one of the storage cylinders 2, the plunger 21 of one of the storage cylinders 2 is caused to retreat, By controlling the plunger 21 099145967 Form No. A0101 Page 28 / Total 62 pages 0992079096-0 201226458 to control the pressure of the molten polymer mixture to prevent separation of the partially dissolved blowing agent; when one of the storage tanks 2 is metered After completion, the pressure of one of the storage cylinders 2 is increased to close the ball check valve 31; then the valve 51 is opened, and the plunger 21 is controlled by the plunger 21 to control the molten polymer mixture. High enough pressure to move from one of the cartridges 2 through the passage 5 to the corresponding discharge cylinder 4, thereby obtaining a non-nucleating, homogeneous, fluid, single phase solution at the discharge In the cartridge 4; the polymer mixture of the cartridge 2 in one of the cartridges is moved by the one of the cartridges 2 to the corresponding discharge cylinder 4 under the higher pressure provided by the control plunger 21. At the same time, control another stock a plunger 21 of 2 to reduce the back pressure thereon, the polymer mixture in the charging cylinder 1 in communication with the other storage cartridge 2 is metered into the other storage cylinder 2; when the other storage cylinder 2 After the metering is completed, the pressure is further increased on the other cartridge 2 to shut off the cartridge 1 and the other cartridge 2, and the molten polymer mixture is controlled by the other under a sufficiently high pressure. The cartridge 2 is transferred via the channel 5 to the corresponding discharge cylinder 4, thereby obtaining a non-nucleated, homogeneous, fluid, single phase solution in the discharge cylinder 4. The feed liquid is alternately fed in this way, and the liquid is transferred to the corresponding discharge drum 4. Wherein, after the liquid in each discharge drum 4 is metered at a higher sufficiently high pressure, the metered liquid in the discharge cylinder 4 is injected into the corresponding mold via the control of the valve 6 and the piston 42. The polymer foamed product is made, or the single-phase solution is transferred to the corresponding mold under the back pressure of the mold, and then used for the manufacture of the molded foamed product. The method of the present invention, by means of an additional storage cartridge in the system of the invention, acts as a buffer so that the feed liquid for controlling the polymer mixture passes from the charging cylinder 1 through the storage drum 2 to the corresponding discharge cylinder 4, and in the corresponding outlet 099145967 in the barrel 4 Form No. A0101 Page 29 / Total 62 pages 0992079096-0 201226458 During the processing of forming a single-phase, non-nuclear, uniform liquid, the applied control pressure on the liquid is increased in stages according to the processing needs. Does not affect the introduction of blowing agent during processing. Wherein, by obtaining the applied pressure of the single-phase solution, decoupling from the applied pressure of the polymer mixture in the charging cylinder 1 so that the variation of the control pressure does not affect the blowing agent during the process of obtaining the single-phase solution It is introduced that the applied pressure on the single phase solution in the discharge cylinder 4 of the present invention can be easily maintained above the required pressure before injection. In the present invention, the pressure of the blowing agent can be more easily provided by the method of the present invention or/and the system of the present invention, so that the pressure in the discharge drum 4 can more easily provide a higher pressure than that required to obtain a single-phase solution. Compared to conventional methods, the present invention is relatively more advantageous in preventing nucleation of feed liquids caused by pressure or temperature fluctuations. The structure of the system of the present invention differs from conventional system structures in that the additional cartridge 2 provides an additional dynamic transfer of the molten polymer mixture from the cartridge 2 to the corresponding discharge cartridge 4, helping to provide uniform mixing to It is also necessary to form a single-phase solution quickly and uniformly, and it is also necessary to appropriately increase the temperature of the smelting polymer, because as the temperature increases, the diffusion rate of the supercritical fluid is increased to accelerate the acquisition of the single-phase solution. In contrast to the second map system, the third map system introduces a variety of mixing devices, such as static mixers, into the connecting passage 5 to ensure uniformity in obtaining a single phase solution in the discharge drum 4. Sometimes, in order to ensure that sufficient mixing is completed, it is necessary to further introduce various mixing portions in the system of the present invention. The second embodiment of the method of the present invention can be mutated, and when the feed liquid of the molten polymer mixture in the charging cylinder 1 is sequentially metered into one of the storage cylinders 2, each storage tank 2 does not need to reach sufficient Measurement. When 099145967 Form No. A0101 Page 30 / Total 62 Page 0992079096-0 201226458 ❹ Ο 099145967 When the quantity is fed, the liquid in the other storage tank 2 is simultaneously moved from the storage barrel 2 to the corresponding one under the door check force. Output = force: the liquid of the single-phase solution is formed, until a certain - discharge cylinder is known as the World War II, and the output of the discharge cylinder 4 is kept high, which is not conducive to control: The main feed liquid and the liquid solution for obtaining a uniform single-phase solution, but the internal volume of the storage material can be smaller, which is advantageous for reducing cost and volume. In addition, in the foregoing situation, although a plurality of discharge cylinders are respectively illustrated corresponding to the respective molds, the same as the conventional Weiyi's can be used to make the decoration material corresponding to a mold β. The fourth figure is the system of the present invention. A schematic of the composition of another variation may illustrate the third and fourth embodiments in accordance with the present gamma method. In the fourth figure, the outlets of all the storage cylinders 2 of the system of the present invention are connected via the switching device: the inlet of the discharge cylinder 4, and the outlet of the discharge cylinder is connected to the cavity with the inlet through the nucleation device, so as to facilitate The use of the method of the invention to continuous foaming processing techniques such as extrusion, and the reduction of components. The discontinuous foaming processing technique, such as / master molding, according to the third embodiment of the method of the present invention, as exemplified by the system of the fourth figure, when the cartridge is loaded! When the feed liquid of the molten polymer mixture is fed by controlling the amount of -4 of the storage cylinder 2, causing one of the plungers 21 of the storage cylinder 2 to retreat through the control plunger 2Ux to control the liquid force (4), Preventing the partially dissolved blowing agent from separating; when the storage cylinder 2 of one of the cylinders is finished, the pressure of one of the storage cylinders 2 is increased, and the ball type check valve 31 is closed; and then Open the valve 51, by controlling the plunger 21 and the plunger 41, to control the force on the liquid to be under the higher and higher force by the form number Α0101 « -- Page 31 / Total 62 pages 0992079096 -0 201226458 The storage tank 2 is transferred to the corresponding discharge drum by passage 5, and is discharged into the corresponding discharge cylinder clock, and the non-nucleating, homogeneous, fluid, single-phase dissolution is performed in the output = 4 The liquid of the storage cylinder 2 of the present invention is controlled by the control plunger for higher pressure to move from the storage cylinder 2 of one of the 兮攸~, to the corresponding outlet, while controlling The plunger of the other storage cylinder 2 lowers its monthly pressure so that the liquid in the charging cylinder 1 communicating with the other storage cylinder 2 = another storage The cylinder 2 is metered and fed; the metering of the liquid in the discharge cylinder 4 is controlled in the private metering of the other cylinder 2, so that the discharging cylinder 4: the liquid is at a higher enough height After the metering is completed, the feed liquid of the metered solution in the discharge drum 4 is injected into the cavity of the mold through the control of the inter-piston 42; when the additional storage tank 2 is finished in the mold 'Following to increase the force of the other storage cylinder 2, so that the charging cylinder 1 is in communication with the other storage cylinder 2, and controlling the house power on the liquid liquid to be sufficiently high, by the other storage material The cartridge 2 is transferred to a corresponding discharge drum, and a liquid solution is obtained in the discharge cylinder 4 as a non-nucleating, homogeneous, fluid, single phase solution. Thus, the feed liquid is transferred to the discharge drum 4, and the feed liquid of the discharge drum is transferred to the cavity of the mold, and then the polymer foamed product is obtained. In order to carry out the third embodiment of the above-described method of the present invention, the metering of the above-mentioned cartridge 2 is required to be slower than the rate of metering in the discharge drum*. However, another aspect of the third embodiment of the method of the present invention will result in the metering of the cartridge 2 being completed when the metering of the cartridge 2 is faster than the metering of the cartridge 4. If the liquid in the discharge drum 4 still does not complete the metering operation, the feeding cylinder 艸099145967=Γ pauses until the liquid in the discharge cylinder 4 is completed and the metering number is added. Λ0101 Page 32 of 62 201226458

,而後繼續該加料m中的料液進料,以對已完成移轉 ,該出料筒4中的儲料筒2計量加料,以及在移轉該 ’4中被計量的料液至模具中的動作完成後,移轉上 此k成計量加料的儲料筒2的料液至該出料筒4中。如 交替加料、移轉料液至該出料筒4中,以及移轉該出料 彦中被計量的料液至模具的模腔中,以獲得聚合物發泡 :。雖然,對於上述狀況,當尚未完成輪送料液從一 、擇的儲料筒2進入與該被選擇的儲料筒連接的該出料 ,且已完成輸送料液從加工裝置i進入其餘的儲料筒3 藉智停加工裝幻的料液的輪送,將不利於發泡劑的連 心定m而,相對於傳統方法,本發明方法的發 1入壓力可以更低’因而可降低發泡劑在加料筒^ 上游流動的困擾。And then continuing the feed of the feed in the feed m to meter the feed, the charge 2 in the discharge drum 4 is metered, and the feed being metered in the '4 is transferred to the mold After the action is completed, the feed liquid of the storage tank 2, which is metered into the feed, is transferred to the discharge drum 4. For example, alternately feeding, transferring the liquid to the discharge drum 4, and transferring the metered liquid in the discharge to the cavity of the mold to obtain polymer foaming: Although, for the above situation, when the feed liquid has not been completed from the selected storage tank 2 into the discharge connected to the selected storage tank, and the delivery of the liquid liquid from the processing device i into the remaining storage has been completed. The barrel 3 can be processed by the magic to stop the processing of the magic liquid, which will be detrimental to the concentricity of the foaming agent. Compared with the conventional method, the pressure of the method of the invention can be lower, thus reducing the hair. The foaming agent is troubled by the upstream flow of the charging cylinder.

其中’對注塑之類的不連續發泡加工技術,本發明 =第三實施方案可加以變異,加料筒融聚合 每^物的料液對儲料筒2的其中之—依序計量加料時, 〜辟料筒2完成加料後的計量料液少於該出料筒4完成 、:4後所需的足夠計量,使計量輪送至每個儲料筒2中的 料液的量少於計量輸送至該出料筒4中的料液的量。 作過 六' °程是:加料筒1中的熔融聚合物混合物的料液可選擇 的侠序對儲料筒2計量加料,並通過控制柱塞21以控制其 中的料液上的壓力,以防止已部分溶解的發泡劑分離; 虽被計量加料的儲料筒2計量完成後,接著對該儲料筒2 提高壓力,以使球式止逆閥31截止連通,並使該加料筒1 對另一儲料筒2計量加料;而後控制該計量完成的儲料筒 2中的料液在更高的足夠高的壓力下移轉至其出料筒4中 099145967 單編號A0101 第33頁/共62頁 0992079096-0 201226458 。如此交替加料、移轉料液至其出料筒4中,直到該出料 筒4計量完成;而後移轉該計量完成的出料筒4中的單相 、非核、均勻的料液至模腔中’而後製成聚合物的發泡 產品。此種狀況,計量加料完成後的每一儲料筒2的料液 少於該出料筒4計量完成後所需的足夠計量。因而,所述 的儲料筒2的内容積的容量可小於所述的出料筒4的内容 積的容量,以利於成本與體積的減少,特別是對大型系 統。 依據本發明方法的第四實施方案,當例示在第四圖 的系統用於擠塑之類的連續..發泡加工技術時,其中的射 嘴可作為一平行成核器,且在擠出的成核料液通過與該 成核器連通的模腔時,向成核器之後的下游方向控制該 成核料液上的施加壓力的增長或減緩,以穩定且均勻的 擠出想要的細微泡孔的發泡產品或控制發泡產品上的泡 孔增長。 其中’第三實施方案與第四實施方案主要不同在於 :注塑發泡技術中’出料筒4中的單相溶液常通過一射嘴 或成型室前的狹窄短小的通道裝置,並配合開關閥提供 間歇性注射’以提供一成核的可發泡材料,接著在一作 為成型室的模具的模腔中定型發泡產品;擠塑發泡技術 中’出料筒4中的單相溶液通過一成核器,以連續性的由 一模具的模口擠出一成核的可發泡材料,並定型被擠出 的發泡產品為想要的形狀。 依據本發明方法的第四實施方案,如第四圖系統的 例示,其工作過程是:加料筒中1的熔融聚合物混合物的 料液可選擇的依序對儲料筒2計量加料,並通過控制柱塞 099145967 表箪編號A0101 第34頁/共62頁 0992079096-0 乂控制其中的料液上的壓力,以防止已部分溶解的發 泡劑分離;當被計量加料的儲料筒2計量完成後,接著對 °亥錢料筒2提高壓力,以使球式止逆閥31截止連通,並使 該加料筒1對另一儲料筒2計量加料;而後控制該計量完 成的儲料筒2中的料液在更高的足夠高壓下移轉至出料; 4中’以在該出料筒4中獲得成一種非成核、均質、流體 、單相的溶液;如此交替加料、移轉料液至其出料筒4中 ,在該出料筒4進料的同時,擠出該出料筒4中的單相溶 液的料液經成核器至一帶入口的模腔中,並在腔内形成 一成核的聚合物材料前驅物,而後經模具的模口擠出, 並定型成想要的擠塑發泡產品。 傳統的播«泡成型加羯程,為了獲得強健的掩 塑微孔發泡產品’需要對成核前的單娜液施加一迅迷 壓降’而此迅速壓降可關聯至-高的f切,但剪切速率 提同將使模腔中内的成核料液的流動速率的分佈提高 致使排料速率不易穩定。因而,易使聚合物的排料不 均勻❿不易穩定地獲得良好外觀的連續擠出的微孔發 泡產品。 為了改進上述困擾,第六圖系統中作為成核裝置的 w輪幫浦7替代第四圖系統中的傳統平形成核器。第 六圖為本發明系統的其他另-變異的組成示意圖,以說 明依據用於擠塑之_的連續發泡加工技術的本發明方法 的第五實施方案。其中,第五實施方案與第四實施方案 的主要不同’在於棋腔内的成核料液的流動速率的控制 。對於第四實施方衆,出料筒4中料液上的很高的足夠高 壓’雖有利於獲得厚的微孔發泡產品;但為了獲得強健 表單編號Α0101 第35頁/共62頁 201226458 的擠塑微孔發泡產品,此很高壓力在平形成核器上對成 核前的單相溶液施加的高的剪切,易使聚合物的排料速 率不易穩定,而不利於連續擠出想要的微孔發泡產品。 然而,對於第五實施方案,其使用一個轉動的齒輪幫浦7 ,作為成核裝置,以及控制模腔内的成核料液的流動速 率;藉由齒輪幫浦7的幫助,單相溶液成核時的壓力下降 幾乎是瞬間達到,而且排料速率基本上與壓降無關。因 而,藉由齒輪幫浦7的幫助,與單相溶液成核前的很高的 足夠高壓,使本發明方法的第五實施方案可獲得更強健 的擠塑微孔發泡產品。 理想上,對擠塑之類的連續發泡加工技術,第四圖 與第六圖中的加料筒1與出料筒4兩者内的料液可持續穩 定流動;但實際上,僅只有兩者之一的料液持續穩定流 動可被獲得。 例如:當其中之一的儲料筒2由加料筒1供料時,另 一儲料筒2正在將料液移轉至出料筒4 ^此時,該其中之 一的儲料筒2内的壓力通常相當程度的低於該另一儲料筒 2内的壓力。為獲得加料筒1内的料液持續穩定流動,則 當該其中之一的儲料筒2的供料接近完成時,該另一儲料 筒2内的壓力需要先降低與停止對出料筒4的連通,使供 應至這些儲料筒2内的加料筒1内的料液,可由供應至該 其中之一的儲料筒2内平穩轉換成供應至該另一儲料筒2 内,以防止料液供應的波動。此種狀況,為了加料筒1内 的料液持續穩定流動,將不利於出料筒4的穩定供料。此 外,當儲料筒2的内容積小於出料筒4的内容積時,對使 用於注塑之類的不連續發泡加工技術的第四圖系統,其 099145967 表單編號A0101 第36頁/共62頁 0992079096-0 201226458 的足夠高壓下的計量加料也容易 出料筒4中的料液在更高 有此類同困擾。 . 解決本發明的第四圖與第六圖系統的上 述困擾,對出料筒4的不穩定供料,可藉由出控制料筒4Wherein the invention relates to a discontinuous foaming processing technique such as injection molding, the third embodiment of the present invention can be mutated, and the feed liquid of the charging cylinder is melted and polymerized for each of the storage cartridges 2, and the feeding is sequentially performed. ~ After the filling cylinder 2 completes the feeding, the measuring liquid is less than the sufficient amount required after the discharging cylinder 4 is completed: 4, so that the amount of the liquid to be metered into each storage cylinder 2 is less than the metering amount. The amount of feed liquid delivered to the discharge drum 4. The process of six°° is: the liquid of the molten polymer mixture in the charging cylinder 1 can be metered and fed to the storage tank 2, and the pressure of the liquid in the liquid is controlled by controlling the plunger 21 to Preventing the partially dissolved blowing agent from separating; after the metering of the metered storage tank 2 is completed, the pressure is increased to the storage cylinder 2 to close the ball check valve 31, and the feeding cylinder 1 is closed. The other storage tank 2 is metered; then the feed liquid in the metered storage cylinder 2 is controlled to be transferred to its discharge cylinder 4 under a sufficiently high pressure 099145967 single number A0101 page 33 / Total 62 pages 0992079096-0 201226458. The feed liquid is alternately fed and transferred to the discharge cylinder 4 until the discharge drum 4 is metered; and then the single-phase, non-nuclear, uniform liquid in the metered discharge cylinder 4 is transferred to the mold cavity. A foamed product that is made into a polymer. In this case, the feed liquid of each of the storage drums 2 after the completion of the metering is less than the sufficient amount required after the discharge of the discharge drums 4 is completed. Thus, the volume of the inner volume of the cartridge 2 can be less than the volume of the inner volume of the discharge cylinder 4 to facilitate cost and volume reduction, particularly for large systems. According to a fourth embodiment of the method of the present invention, when the system of the fourth figure is illustrated for continuous foaming processing techniques such as extrusion, the nozzle can be used as a parallel nucleator and extruded When the nucleating liquid passes through the cavity communicating with the nucleator, the growth or pressure of the applied pressure on the nucleating liquid is controlled to the downstream direction after the nucleator to stably and uniformly extrude the desired The foamed product of fine cells or the control of cell growth on the foamed product. Wherein the third embodiment differs from the fourth embodiment mainly in that: in the injection molding foaming technology, the single-phase solution in the discharge cylinder 4 often passes through a narrow nozzle device in front of a nozzle or molding chamber, and is matched with an on-off valve. An intermittent injection is provided to provide a nucleated foamable material, followed by styling the foamed product in a cavity as a mold for the forming chamber; in the extrusion foaming technique, the single phase solution in the discharge drum 4 is passed A nucleator extrudes a nucleated foamable material from a die of a mold in a continuous manner and shapes the extruded foamed product into a desired shape. According to a fourth embodiment of the method of the present invention, as exemplified by the system of the fourth figure, the working process is: the feed liquid of the molten polymer mixture in the charging cylinder is selectively metered and sequentially fed to the storage tank 2, and controlled by Plunger 099145967 Form No. A0101 Page 34 / Total 62 Page 0992079096-0 乂 Control the pressure on the liquid to prevent the partially dissolved foaming agent from separating; when the metered storage tank 2 is metered Then, the pressure is increased to the hemi barrel 2 to close the ball check valve 31, and the charging cylinder 1 is metered to the other storage cylinder 2; and then the metered storage cylinder 2 is controlled. The feed liquid is transferred to the discharge at a higher enough high pressure; 4 'to obtain a non-nucleating, homogeneous, fluid, single phase solution in the discharge drum 4; thus alternately feeding and transferring the feed The liquid is discharged into the discharge cylinder 4, and while the discharge cylinder 4 is being fed, the liquid of the single-phase solution in the discharge cylinder 4 is extruded through the nucleator into a cavity with an inlet, and is in the cavity. Forming a nucleated polymer material precursor therein, and then extruding through the die of the mold, And shaped into the desired extruded foam product. The traditional so-called "bubble forming process", in order to obtain a strong masking microcellular foaming product 'need to apply a rapid pressure drop to the single liquid before nucleation' and this rapid pressure drop can be associated with - high f Cutting, but the shear rate is similar, which will increase the distribution of the flow rate of the nucleating liquid in the cavity, making the discharge rate difficult to stabilize. Therefore, it is easy to make the discharge of the polymer uneven, and it is difficult to stably obtain a continuously extruded microporous foamed product of good appearance. In order to improve the above troubles, the w wheel pump 7 as a nucleation device in the sixth figure system replaces the conventional flat forming core in the fourth picture system. Figure 6 is a schematic illustration of other alternative variations of the system of the present invention to illustrate a fifth embodiment of the process of the present invention in accordance with a continuous foam processing technique for extrusion. Among them, the fifth embodiment is mainly different from the fourth embodiment in that the flow rate of the nucleating liquid in the chess chamber is controlled. For the fourth embodiment, the high enough high pressure on the liquid in the discharge drum 4 is advantageous for obtaining a thick microcellular foamed product; however, in order to obtain a robust form number Α0101, page 35/62, 201226458 Extrusion of microcellular foaming products, the high shear applied to the single-phase solution before nucleation on the flat forming core, easy to make the discharge rate of the polymer difficult to stabilize, and is not conducive to continuous extrusion The microporous foam product you want. However, for the fifth embodiment, it uses a rotating gear pump 7 as a nucleating device and controls the flow rate of the nucleating liquid in the cavity; with the aid of the gear pump 7, the single phase solution is The pressure drop at the core is almost instantaneous, and the discharge rate is essentially independent of the pressure drop. Thus, with the help of the gear pump 7, a very high enough pressure before nucleation with the single phase solution allows the fifth embodiment of the process of the invention to obtain a more robust extruded microcellular foam product. Ideally, for the continuous foaming processing technique such as extrusion, the liquids in both the charging cylinder 1 and the discharging cylinder 4 in the fourth and sixth figures can continue to flow stably; but in reality, only two A steady flow of the feed of one of the materials can be obtained. For example, when one of the storage cartridges 2 is fed by the charging cylinder 1, the other storage cylinder 2 is transferring the liquid to the discharge cylinder 4. At this time, one of the storage cylinders 2 is inside. The pressure is typically considerably lower than the pressure within the other cartridge 2. In order to obtain a steady and steady flow of the liquid in the charging cylinder 1, when the supply of the one of the storage cylinders 2 is nearing completion, the pressure in the other storage cylinder 2 needs to be lowered and stopped first. The communication of 4, so that the liquid liquid supplied into the charging cylinder 1 in the storage cylinders 2 can be smoothly converted into the supply to the other storage cylinder 2 by the storage cylinder 2 supplied to one of the storage cylinders 2, Prevent fluctuations in the supply of liquid. In this case, in order to continuously and stably flow the liquid in the charging cylinder 1, the stable feeding of the discharge cylinder 4 is disadvantageous. Further, when the internal volume of the cartridge 2 is smaller than the internal volume of the discharge cylinder 4, the fourth figure system for the discontinuous foaming processing technique used for injection molding, 099145967 Form No. A0101 Page 36 of 62 Page 0992079096-0 201226458 The metering of the feed under high pressure is also prone to the trouble of discharging the feed liquid in the drum 4 at a higher level. Solving the above-mentioned problems of the fourth and sixth systems of the present invention, the unstable feeding of the discharge cylinder 4 can be controlled by the discharge cylinder 4

Ο 099145967 ㈣液儲存的增減作為緩衝,並控制出料筒4的柱塞上 的月壓’以減緩因出料筒4的供料不穩定而造成的出料筒 内的Μ力波動。但此種狀況,終究不利於出料筒4内的 科液在#量過程中的持續穩定流動。反之,若為了顧及 出料筒4内的料液在計量過程中的持續穩定供料,則將不 利於加料筒1㈣料液轉敎流動。 第圖,、第七圖各自為本發明系統的其他另一變異 成丁 圖卩各自說明依據本發明方法的第六與第 七實施方案。相對於第四圖與第六圖系統第五圖與第 七圖系統主要藉由增加一額外的儲料筒2,作為增加一額 外的可選擇的路徑,以解決上述困擾。第五圖與第七圖 系統中的額外儲料筒2,可作為緩衝,以使系統中的加料 筒1與出料筒4兩者_料液可視需要提供同時持續各自 穩定流動’以易於穩定加人預定量的發泡劑至料液中。 例如在第六或第七實施方案中:當其中之一的儲料 筒2由加料筒!供料時,另一儲料筒2正在將料液移轉至出 料筒4 ;此時’該其中之一的儲料筒2内的壓力通常相當 程度的低於該另一儲料筒2内的壓力。雖然,之前方案中 ’為了獲得加料筒1内的料液持續穩定流動,則當該其中 之一的儲料筒2的供料接近完成時’該另一儲料筒2内的 壓力需要先降低與停止對出料筒4的連通,以獲得加料筒 1内的料液持續穩定流動;但是,在第六或第七實施方案 表單編號A0101 第37頁/共62頁 0992079096-0 201226458 中,於上述狀況發生時,一額外儲料筒2内由加料筒1之 前提供的料液可先提高至足夠高的壓力,以提供出料筒4 的持續穩定供料。因而系統中的出料筒4中的料液在進料 的同時,可持續穩定的擠出該出料筒4中的料液經成核器 至一帶入口的模腔中,並在腔内形成一成核的聚合物材 料前驅物,而後製成想要的擠壓發泡產品。 在本發明第五圖與第七圖的系統中,為簡化控制, 系統中的加料筒可依序對各儲料筒加料,同時依序將完 成料液接收的儲料筒内的料液壓力提高至足夠高的壓力 以移轉料液至出料筒中,並獲得單相溶液在出料筒中。 其中,對已完成料液移轉的儲料筒的壓力可先降低至適 當壓力,以準備接收加料筒的加料而對已完成料液接 收的儲料筒的壓力可先提高至適當壓力,以準備移轉料 液至出料筒中。在此,系統中提供的額外儲料筒作為料 液的暫存,以便在每一儲料筒中的料液由接收至移轉的 過程中,可視加工階段依需要提高在料液上的施加壓力 ,使獲得單相溶液的施加壓力的大小不影響發泡劑的引 入,並獲得系統中料液的持續穩定流動,以更佳的完成 本發明。 因而,藉由本發明系統的幫助,本發明可有利於在 較低壓力下連續引入發泡劑,以改善因發泡劑的過高引 入壓力,而導致的發泡劑可能向聚合物流體的上游流動 ,使能減少或防止發泡劑從聚合物流體的上游的進料口 逸出,而且相對無需特別增加額外處置。此種較低的發 泡劑引入壓力,也使加料螺桿相對不易因高壓阻力而造 成空轉,以利於生產發泡產品,特別是當料液本身的黏 099145967 表單編號A0101 第38頁/共62頁 0992079096-0 201226458 性較低時。 此外,對在加工過程中發泡劑的連續引入,可改善 因發泡劑的引入停頓,而造成在單相溶液中的發泡劑不 均勻分佈。 第六實施方案類同於第四實施方案,兩方案均可使 用平形成核器作為成核裝置,並藉由成核器對成核前的 單相溶液施加高的剪切,以獲得料液成核。與傳統方法 不同,本發明藉由獲得單相溶液的施加壓力與促使熔融 聚合物與在環境條件下呈氣態的發泡劑形成的聚合物混 Ο 合物的施加壓力去柄合,使獲得單相溶液的施加壓力可 以與發泡劑的引入壓力去耦合。此種改進,使獲得單相 溶液的施加壓力可易於視需要提高,而不需相應提高發 泡劑的引入壓力。因而,與傳統方法相比,本發明方法 易於獲得更高發泡劑溶解度的單相溶液,且在單相溶液 獲得後,持續維持更高於獲得單相溶液的所需壓力。此 種在料液成核前持續維持很南的南壓在料液上*有助於 降低或防止環境波動造成溶解度變化而形成的不想要的 〇 發泡劑成核,以及易於獲得一更迅速壓降以有利於獲得 厚的微孔發泡產品。但此更迅速壓降易使成核器内的料 液的流動速率的分佈提高,致使排料速率不易穩定,而 不利於連續擠出想要的微孔發泡產品。 為了改進上述困擾,第七實施方案類同於第五實施 方案,兩方案均使用一個轉動的齒輪幫浦7作為成核裝置 以及控制模腔内的成核料液的流動速率;藉由齒輪幫浦7 的幫助,使單相溶液成核時的壓力下降幾乎是瞬間達到 ,且排料速率基本上與壓降無關。因而,藉由齒輪幫浦7 099145967 表單編號A0101 第39頁/共62頁 0992079096-0 201226458 的幫助^料液成核後的料液流動速率可被穩定控制’以 利於本發明方法在獲得更強健的擠塑微孔發泡產品的同 時,可易於控制發泡產品的生產速度,以改進上述困擾 〇 在上述用於擠塑之類的連續發泡加工技術的本發明 系統中,其儲料筒2的内容積可更小於出料筒4的内容積 ,以利於成本與體積的減少,特別是對大型系統。 在第八圖的例示中,第四圖系統的出料筒4中例示的 柱塞以第八圖系統中的帶往復運動的螺桿替代時,螺桿 的混合與使均勻的部分有利於在該出料筒4中建立更均勻 的單相溶液。參考第八圖,本發明方法的第三實施方案 或第四實施方案可加以變異,當料液由某一儲料筒2經出 料筒4的入口移轉至出料筒4中時,料液由出料筒4的入口 往出口方向移動,藉由螺桿的攪動,以進一步保證料液 的均勻混合。而且,對注塑之類的不連續發泡加工技術 ,由於料液的流入,引起出料筒4中的螺桿後退;藉由控 制出料筒4中的壓力,以促使料液形成單相溶液;而後以 該料液製成想要的聚合物的發泡產品。對擠塑之類的連 續發泡加工技術,雖然單純旋轉運動的螺桿,就已足夠 擠塑發泡加工技術的需要,因其可藉由控制螺桿的旋轉 ,以保證料液的均勻混合與建立想要的壓力在料液上; 但使用帶往復運動的螺桿是更佳的,因當加料筒1中的進 料速度與出料筒4中的出料速度不同時,出料筒4中螺桿 的前進或後退可作為緩衝與穩定料液上的壓力。 依據本發明,對擠塑之類的連續發泡加工技術,第 八圖系統中的成核裝置可安排在如第九圖系統的一鋼模 099145967 表單編號A0101 第40頁/共62頁 0992079096-0 201226458 中,以實施上述變異的本發明方法的第四實施方案。如 傳統擠塑發泡成型技術,在第九圖系統的鋼模中安排一 間隙開口作為成核裝置。因而,對第九圖系統實施上述 變異的本發明方法的第四實施方案時,類同於第八圖系 統’當第九圖系統中螺桿的旋轉時,其有助於料液成核 前在極高壓力下相互溶解與保證料液的均勻混合。 其中’類同於傳統技術’出料筒4中的螺桿可建立想 要的壓力以獲得單相溶液。但在本發明中該螺桿建立的 壓力變動可與發泡劑的引入被分隔,使在出料筒4中可易 Ο 於提供極尚壓力以獲得單相溶液’且無需配合提高發泡 劑的引入歷力.。 本發明的各種實施方案中,當需要更迅速獲得發泡 劑與熔融聚合物的混合物的料液時,可增加更多的額外 加料筒1來達成要求。例如:作為例示的第十圖系統為本 發明第四圖系統的另一變異的組成示意圖;其中,第十 圖系統提供3個作為加料混料用途的加料筒與儲料筒2連 通’以提兩系統供應給儲料筒2'中料液的累積速度。Ο 099145967 (4) The increase or decrease of the liquid storage acts as a buffer and controls the monthly pressure on the plunger of the discharge cylinder 4 to slow the fluctuation of the force in the discharge cylinder caused by the unstable supply of the discharge cylinder 4. However, this situation is ultimately unfavorable for the continuous and steady flow of the solution in the discharge cylinder 4 during the process. On the other hand, if the feed liquid in the discharge drum 4 is continuously and stably supplied during the metering process, it will be unfavorable for the feed tank 1 (4) to flow. The first and seventh figures are each another variation of the system of the present invention. The sixth and seventh embodiments of the method according to the present invention are each illustrated. The fifth and seventh systems of the system are primarily provided with the addition of an additional cartridge 2 as an additional optional path to solve the above problems. The additional storage cartridges 2 in the fifth and seventh systems can be used as a buffer so that both the charging cylinder 1 and the discharging cylinder 4 in the system can be provided as needed while maintaining a steady flow of each of them for easy stabilization. Add a predetermined amount of blowing agent to the liquid. For example, in the sixth or seventh embodiment: when one of the cartridges 2 is fed by a cartridge! At the time of feeding, the other storage tank 2 is transferring the liquid to the discharge drum 4; at this time, the pressure in the one of the storage cylinders 2 is generally considerably lower than that of the other storage cylinder 2 The pressure inside. Although, in the previous scheme, in order to obtain a steady and steady flow of the liquid in the charging cylinder 1, when the supply of one of the storage cylinders 2 is near completion, the pressure in the other storage cylinder 2 needs to be lowered first. The communication with the discharge cylinder 4 is stopped to obtain a continuous steady flow of the liquid in the charging cylinder 1; however, in the sixth or seventh embodiment form number A0101, page 37/62, 0992079096-0 201226458, When the above conditions occur, the feed liquid supplied from the front of the feed cylinder 1 in an additional storage drum 2 can be first raised to a sufficiently high pressure to provide a continuous and stable supply of the discharge drum 4. Therefore, the feed liquid in the discharge cylinder 4 in the system can continuously and stably extrude the liquid in the discharge cylinder 4 through the nucleator into a cavity with an inlet, and form in the cavity. A nucleated polymer material precursor is then formed into the desired extruded foam product. In the systems of the fifth and seventh embodiments of the present invention, in order to simplify the control, the feeding cylinders in the system can sequentially feed the respective storage cylinders, and at the same time, sequentially complete the liquid pressure in the storage cylinders receiving the liquid receiving liquid. Increase to a high enough pressure to transfer the feed to the discharge drum and obtain a single phase solution in the discharge drum. Wherein, the pressure of the storage cylinder that has completed the liquid transfer can be first reduced to an appropriate pressure to prepare to receive the feeding of the charging cylinder, and the pressure of the storage cylinder that has received the liquid receiving liquid can be first increased to an appropriate pressure to Prepare to transfer the feed to the discharge drum. Here, the additional storage cylinder provided in the system is temporarily stored as a liquid material, so that the pressure applied to the liquid liquid can be increased as needed during the process of receiving and transferring the liquid in each storage cylinder. The magnitude of the applied pressure to obtain the single phase solution does not affect the introduction of the blowing agent, and a continuous steady flow of the liquid in the system is obtained to better complete the present invention. Thus, with the aid of the system of the present invention, the present invention can facilitate continuous introduction of a blowing agent at a lower pressure to improve the excessive introduction pressure of the blowing agent, resulting in a blowing agent that may be upstream of the polymer fluid. The flow, which reduces or prevents the blowing agent from escaping from the feed inlet upstream of the polymer fluid, does not require additional additional handling. The lower blowing agent introduction pressure also makes the feeding screw relatively difficult to idling due to high pressure resistance, so as to facilitate the production of foamed products, especially when the liquid itself is viscous. 099145967 Form No. A0101 Page 38 of 62 0992079096-0 201226458 When the sex is low. In addition, the continuous introduction of the blowing agent during processing can improve the uneven distribution of the blowing agent in the single-phase solution due to the introduction of the blowing agent. The sixth embodiment is similar to the fourth embodiment, both of which can use a flat forming core as a nucleating device, and a high shear is applied to the single-phase solution before nucleation by the nucleator to obtain a liquid Nucleation. Unlike the conventional method, the present invention obtains a single stalk by applying an applied pressure of a single-phase solution to a pressure of a polymer mixture which promotes formation of a molten polymer with a foaming agent which is gaseous under ambient conditions. The applied pressure of the phase solution can be decoupled from the introduction pressure of the blowing agent. This improvement allows the pressure applied to obtain the single-phase solution to be easily increased as needed without correspondingly increasing the introduction pressure of the foaming agent. Thus, the process of the present invention readily achieves a single phase solution of higher blowing agent solubility compared to conventional processes, and continues to maintain a higher pressure required to obtain a single phase solution after the single phase solution is obtained. This maintains a very southerly pressure on the feed liquid before the nucleation of the feed liquid. * Helps reduce or prevent environmental fluctuations from causing solubility changes and unwanted nucleation of the bismuth blowing agent, and easy to obtain a faster The pressure drop is advantageous to obtain a thick microcellular foamed product. However, this more rapid pressure drop tends to increase the distribution of the flow rate of the liquid in the nucleator, making the discharge rate less stable, and is not conducive to continuous extrusion of the desired microcellular foamed product. In order to improve the above-mentioned problems, the seventh embodiment is similar to the fifth embodiment, both of which use a rotating gear pump 7 as a nucleating device and control the flow rate of the nucleating liquid in the cavity; With the help of Pu 7, the pressure drop during the nucleation of the single-phase solution is almost instantaneous, and the discharge rate is basically independent of the pressure drop. Therefore, with the help of the gear pump 7 099145967 Form No. A0101 Page 39 / Total 62 page 0992079096-0 201226458, the liquid flow rate after the nucleation of the liquid can be stably controlled to facilitate the method of the present invention to obtain more robustness. While extruding the microcellular foamed product, it is easy to control the production speed of the foamed product to improve the above-mentioned troubles in the above-described system of the present invention for continuous foaming processing techniques such as extrusion, the storage cylinder thereof The internal volume of 2 can be smaller than the internal volume of the discharge cylinder 4 to facilitate cost and volume reduction, especially for large systems. In the illustration of the eighth figure, when the plunger illustrated in the discharge cylinder 4 of the fourth system is replaced by a reciprocating screw in the eighth system, the mixing of the screw and the uniform portion are advantageous in the outlet. A more uniform single phase solution is established in the cartridge 4. Referring to the eighth embodiment, the third or fourth embodiment of the method of the present invention may be mutated, when the feed liquid is transferred from a certain storage cylinder 2 through the inlet of the discharge cylinder 4 to the discharge cylinder 4, The liquid is moved from the inlet of the discharge cylinder 4 toward the outlet by the agitation of the screw to further ensure uniform mixing of the liquid. Moreover, for the discontinuous foaming processing technique such as injection molding, the screw in the discharge cylinder 4 is retreated due to the inflow of the liquid; and the pressure in the discharge cylinder 4 is controlled to promote the formation of a single-phase solution; The feed liquid is then used to make a foamed product of the desired polymer. For the continuous foaming processing technology such as extrusion, although the screw of the simple rotary motion is enough to squeeze the needs of the foaming processing technology, it can control the rotation of the screw to ensure the uniform mixing and establishment of the liquid. The desired pressure is on the liquid; however, it is more preferable to use a reciprocating screw because the screw in the discharge cylinder 4 is different when the feed speed in the charging cylinder 1 is different from the discharge speed in the discharge cylinder 4. The advancement or retreat can be used as a buffer to stabilize the pressure on the feed. According to the present invention, for a continuous foaming processing technique such as extrusion, the nucleation device in the eighth drawing system can be arranged in a steel mold 099145967 as in the system of the ninth drawing. Form No. A0101, page 40/62, 0992079096- 0 201226458, a fourth embodiment of the method of the invention for carrying out the above variation. As in the conventional extrusion molding technique, a gap opening is arranged in the steel mold of the ninth system as a nucleating device. Thus, the fourth embodiment of the method of the present invention for performing the above variation on the ninth system is similar to the system of the eighth diagram. When the screw of the ninth system is rotated, it helps the liquid before nucleation. Dissolve each other under extremely high pressure to ensure uniform mixing of the liquid. The screw in the discharge drum 4 of the same type as the conventional technology can establish a desired pressure to obtain a single-phase solution. However, in the present invention, the pressure variation established by the screw can be separated from the introduction of the blowing agent, so that it is easy to provide a very high pressure in the discharge cylinder 4 to obtain a single-phase solution, and it is not necessary to cooperate with the foaming agent. Introducing the calendar. In various embodiments of the present invention, when it is desired to obtain a more rapid solution of the mixture of blowing agent and molten polymer, more additional cartridges 1 can be added to meet the requirements. For example, the tenth system as an illustration is a schematic diagram of another variation of the system of the fourth embodiment of the present invention; wherein, the tenth system provides three feeding cylinders for feeding and mixing purposes, and the storage cylinder 2 is connected to The cumulative rate at which the two systems supply the feed to the cartridge 2'.

在本發明的例示中,對於作為加料筒用途的一具有 螺桿的加工裝置,雖然其中的螺桿提供單純旋轉運動, 在多數情況下即足以提供加料筒1中進料的連續供應,以 防止塑料輸入停頓而導致發泡劑在塑料中的不均勻分伟 •,但有時使用單純的螺桿旋轉運動,不能完成加料= 進料的持續穩定提供,必需使用帶往復運動的螺桿j 、 藉由螺桿的前進或後退作為緩衝,以達成塑料瞥 以 續穩定進入。 的持 099145967 本發明藉由分離發泡劑的引入操作與單相 表單編號Α0101 第41頁/共62頁 溶液的獲 〇"2〇79〇9r. 201226458 得操作’使易於提供極高壓力以獲得單相溶液,並進— 步提供極高壓力於成核之前的單相溶液上。此極高壓力 有助於獲得在單相溶液中含更高的發泡劑溶解度,以及 防止因環境波動而導致的單相溶液成核。而且,此種在 單相溶液成核前施加的極高壓力,在擠塑發泡工藝中有 助於料液成核的過程,以及比傳統方法更易於獲得厚的 微孔發泡產品。 對於在傳統擠塑技術中,為了因應加工過程中在聚 合物混合物的料液形成單相溶液的階段需要極高的施加 壓力,以及在成核前的單相溶液上提供極高的維持壓力 ,必須相應提高發泡劑的引入壓力。例如:中國專利第 〇 18 0 9 9 41. 6號中例示’對低發泡劑.含量的播塑產品,♦ 虽 在熔融聚合物内含按重量計〇. 〇47%的超臨界狀態的氮氣 時,在其上保持不超過大約1 5〇〇pS i的壓力即可維持單相 溶液,而氮的超臨界相的超臨界壓力約為5〇〇 psi。但為 建立在擠塑機末端的壓力為42〇〇psi,以獲得微孔聚合物 ’使其氮氣注入點的壓力為2.2 〇 〇 p s::i。 099145967 與傳統發泡技術不同,本發明因成核前對單相溶液 的維持操作與發泡劑的引入操作可被獨立控制;使得提 呵施加在單相溶液上的壓力,不會迫使發泡劑的引入壓 力必須相應提高;故而,使獲得單相溶液的施加壓力可 乂與發/包劑的引入壓力去麵合。而且,本發明可獲得單 相溶液的施加壓力與促使熔融聚合物與發泡劑形成的聚 s物此合物的施加壓力去麵合。因而,本發明可提供料 液成核前對料液維持很高的持續壓力’而無需配合提高 發泡劑的引入壓力。例如:在本發明擠塑技術中,當在 0992079096-0 表單編號A0101 第42頁/共62頁 201226458 炫融聚合物内含按重量計0. 〇47%的超臨界狀態的氮氣時 其氮氣/主入點的壓力為l〇〇〇psi,出料筒的背壓保持超 過大約400〇psi的壓力,使在擠塑機末端的壓力超過 4200psi,或超過5500psi,或更大。In the exemplification of the present invention, for a processing device having a screw for use as a charging cylinder, although the screw therein provides a simple rotational motion, in most cases, it is sufficient to provide a continuous supply of the feed in the charging cylinder 1 to prevent plastic input. The pause causes the unevenness of the foaming agent in the plastic. However, sometimes the simple screw rotation motion is used, and the feeding cannot be completed. The feeding is continuously and stably provided. It is necessary to use the screw j with reciprocating motion and the screw. Advance or retreat as a buffer to achieve a plastic crucible for continued stable entry. 099145967 The present invention is operated by separating the blowing agent and the single-phase form number Α0101, page 41/62 page of the solution 〇"2〇79〇9r. 201226458 operation 'to make it easy to provide extremely high pressure A single phase solution is obtained and further provides a very high pressure on the single phase solution prior to nucleation. This extremely high pressure helps to achieve higher blowing agent solubility in single-phase solutions and to prevent nucleation of single-phase solutions due to environmental fluctuations. Moreover, such extremely high pressures applied prior to nucleation of the single phase solution contribute to the nucleation of the feed liquid in the extrusion foaming process and to the easier availability of thick microcellular foamed products than conventional methods. In the conventional extrusion technique, in order to cope with the extremely high application pressure required to form a single phase solution in the liquid mixture of the polymer mixture during processing, and to provide a very high maintenance pressure on the single phase solution before nucleation, The introduction pressure of the blowing agent must be increased accordingly. For example, Chinese Patent No. 018 0 9 9 41. 6 exemplifies the 'dose of low foaming agent. The content of the plasticized product, ♦ although the content of the molten polymer is 〇. 〇 47% of the supercritical state The nitrogen phase maintains a single phase solution at a pressure of no more than about 15 〇〇 pS i, while the supercritical pressure of the nitrogen supercritical phase is about 5 psi. However, the pressure at the end of the extruder was 42 psi to obtain the microporous polymer's pressure at the nitrogen injection point of 2.2 〇 〇 p s::i. 099145967 Different from the conventional foaming technology, the present invention can be independently controlled for the maintenance operation of the single-phase solution and the introduction of the foaming agent before nucleation; so that the pressure exerted on the single-phase solution does not force the foaming The introduction pressure of the agent must be correspondingly increased; therefore, the application pressure for obtaining the single-phase solution can be combined with the introduction pressure of the hair/package. Moreover, the present invention can obtain the application pressure of the single-phase solution and the application of the pressure of the polymer formed by the molten polymer and the foaming agent. Thus, the present invention provides a high sustained pressure to the feed liquid prior to nucleation of the feed liquid without the need to cooperate to increase the introduction pressure of the blowing agent. For example, in the extrusion technique of the present invention, when 0992079096-0 Form No. A0101 Page 42 / Total 62 Page 201226458 The fused polymer contains 0. 〇 47% of the supercritical nitrogen in the case of nitrogen/ The pressure at the main entry point is 10 psi and the back pressure of the discharge drum is maintained at a pressure in excess of about 400 psi, causing the pressure at the end of the extruder to exceed 4,200 psi, or more than 5,500 psi, or greater.

099145967 本發明對傳統擠塑技術的上述改進,在於發泡劑的 引入操作與單相溶液的形成操作可被獨立控制。因而, 本發明可易於達成當炫融聚合物内含按重量計Q. 〇47%的 超臨界狀態的氮氣時,其氣氣注入點的壓力維持在約 lOOOpsi,或更小,而同時在擠塑機末端的壓力超過 4200psi,或超過55〇Opsi,或更九。 相對於傳統擠塑技術,本發明可提供料液成核前對 料液維持很高的持續壓力,而無需配合提高發泡劑的引 入壓力,以獲得更高發泡劑含量的單相溶液,與導致發 泡產品的更高密度。而且,對一般發泡劑含量狀況本 發明更易於提供極高壓力於成核之前的單相溶液上防 止因環境波動造成不想要的單相^液成核,使利於獲得 更為強健的微孔發泡產品。 而且,因本發明可提供料液成核前對料液維持很高 的持續壓力,而無需配合提高發泡劑的引入壓力。與傳 統工藝相比,因本發明更易於提供料液成核前對料液維 持很尚的持續壓力,使本發明用於擠塑發泡工藝時,在 作為成核裝置的齒輪幫浦的幫助下,單相溶液成核時的 麼降逮率,可以更大且保持相對怪定,以及易於控制料 液成核後的流速,以便經由模腔連續穩定擠出具有良好 外觀的更強健的微孔發泡產品。 此外,在一些其他情況中,本發明可提供單相溶液 表單編號Α0ΠΠ 帛43頁/共62 1 201226458 進入模腔中獲得成核的聚合物材料前驅物,並控制模腔 中的聚合物材料中的泡孔成長,以獲得想要的聚合物的 發泡產品。例如,在一些情況下,本發明的出料筒中的 單相溶液經過作為成核裝置的一射嘴注射進入模具中的 模腔中,使該單相溶液經受迅速的壓降注入模具的模腔 中,以在模腔中獲得成核的聚合物材料前驅物;而且, 為了防止氣室在模腔中生長,模腔中的壓力必需維持在 合適壓力之上,以便在合適壓力下控制容納在模腔中的 成核聚合物材料的氣室生長,以獲得聚合物發泡材料的 想要氣室尺寸。其中,模腔中的壓力維持可藉由機械加 壓或流體加壓達成,其中流體可以是氣體或液體。此預 加壓的流體在聚合物注射期間被排放,使成核聚合物材 料最終佈滿在整個模腔中,而後固化在模腔中的聚合物 材料,使生產的聚合物製品與模腔的形狀相同。或是, 在另一些情況下,有時為了獲得大氣室尺寸的聚合物製 品,在注入聚合物材料到一模腔中時,允許該模腔擴張 ,以控制模腔中聚合物材料的氣室的增長。 在另外一些情況下,本發明可配合傳統反壓注塑技 術,在模腔填充期間,藉由模具的模腔内提供的反壓移 轉單相溶液的料液至模腔中,而後用於模塑工藝的製造 需要;或藉由模腔的反壓,令料液在模腔填充期間在模 腔内形成一成核的聚合物材料前驅物,以用於之後的模 塑或吹塑之類的發泡工藝中,製成想要的發泡產品。例 如:本發明獲得的單相溶液可被移轉至在高壓下的模具 的模腔中,以用於模塑成型。模腔中的壓力必需維持在 很高壓力之上,以便控制模腔中的流動混合物為單相溶 099145967 表單編號A0101 第44頁/共62頁 0992079096-0 201226458 液或是近乎未成核的單相溶液,而後當模腔中的聚合物 材料的溫度下降至接近適合成核的破璃化轉變溫度時, 藉由模腔中的急速壓力下降,以控制模腔中的聚合物材 料的氣室密度。或是,在其他一些情況下,單相溶液的 料液在高的反壓下被注射進入用於模塑成型的模具中後 ,控制該模具模腔的擴張,與急速固化在模腔中成核的 聚〇物材料前驅物,以獲得想要的聚合物微孔發泡材料099145967 The above-described improvement of the conventional extrusion technique of the present invention is that the introduction operation of the blowing agent and the formation operation of the single-phase solution can be independently controlled. Therefore, the present invention can easily achieve that when the smelting polymer contains nitrogen in a supercritical state of Q. 〇 47% by weight, the pressure at the gas injection point is maintained at about 1000 psi, or less, while being squeezed. The pressure at the end of the press exceeds 4200 psi, or exceeds 55 〇Opsi, or nine. Compared with the conventional extrusion technology, the invention can maintain a high continuous pressure of the liquid before the nucleation of the liquid, without the need to increase the introduction pressure of the foaming agent to obtain a single-phase solution with a higher blowing agent content, and Lead to higher density of foamed products. Moreover, the present invention is more susceptible to providing a very high pressure on a single phase solution prior to nucleation to prevent unwanted single phase liquid nucleation due to environmental fluctuations, which facilitates obtaining more robust micropores. Foaming products. Moreover, the present invention provides a high continuous pressure to the feed liquid prior to nucleation of the feed liquid without the need to increase the introduction pressure of the blowing agent. Compared with the conventional process, the invention is more convenient to provide a continuous pressure to maintain the liquid before the nucleation of the liquid, so that the invention can be used in the extrusion foaming process, in the help of a gear pump as a nucleating device. Under the nucleation of single-phase solution, the rate of reduction can be larger and relatively rigid, and the flow rate after nucleation of the liquid can be easily controlled to continuously and stably extrude a more robust microscopic appearance through the cavity. Hole foaming products. In addition, in some other cases, the present invention may provide a single phase solution form number Α0ΠΠ 帛43 pages/total 62 1 201226458 into the mold cavity to obtain a nucleated polymer material precursor and control the polymer material in the cavity The cells grow to obtain a desired foamed product of the polymer. For example, in some cases, the single phase solution in the discharge drum of the present invention is injected into a mold cavity in a mold through a nozzle as a nucleating device, and the single phase solution is subjected to a rapid pressure drop to be injected into the mold cavity of the mold. In order to obtain a nucleated polymer material precursor in the mold cavity; and, in order to prevent the gas chamber from growing in the mold cavity, the pressure in the mold cavity must be maintained above a suitable pressure to be controlled at a suitable pressure. The gas chamber of the nucleated polymer material in the mold cavity is grown to obtain the desired gas cell size of the polymer foam material. Wherein, the pressure maintenance in the mold cavity can be achieved by mechanical or fluid pressurization, wherein the fluid can be a gas or a liquid. The pre-pressurized fluid is discharged during the injection of the polymer, causing the nucleated polymeric material to eventually fill the entire mold cavity and then solidify the polymeric material in the mold cavity to produce the polymer article and the cavity The shape is the same. Or, in other cases, sometimes in order to obtain an atmospheric chamber size polymer article, the cavity is allowed to expand when the polymer material is injected into a mold cavity to control the gas chamber of the polymer material in the cavity. growth of. In other cases, the present invention can be combined with conventional back pressure injection molding technology to transfer the liquid of the single-phase solution into the cavity by back pressure provided in the cavity of the mold during cavity filling, and then used for the mold. The manufacturing process of the plastic process requires; or by the back pressure of the cavity, the material liquid forms a nucleated polymer material precursor in the cavity during cavity filling for subsequent molding or blow molding, etc. In the foaming process, the desired foamed product is produced. For example, the single phase solution obtained by the present invention can be transferred to a mold cavity of a mold under high pressure for molding. The pressure in the cavity must be maintained above a very high pressure in order to control the flow mixture in the cavity to be single phase. 099145967 Form No. A0101 Page 44 of 62 Page 0992079096-0 201226458 Liquid or nearly unnucleated single phase a solution, and then when the temperature of the polymer material in the cavity drops to a temperature close to the nucleation transition temperature, the rapid pressure drop in the cavity is controlled to control the cell density of the polymer material in the cavity . Or, in other cases, after the feed of the single-phase solution is injected into the mold for molding under high back pressure, the expansion of the mold cavity is controlled, and the solidification is rapidly formed in the cavity. Nuclear polymer material precursor to obtain the desired polymer microcellular foam material

而且,本發明方法,在不考慮某一壓力下的最佳可 溶解度時,因發泡劑的引A操作與單相歸的形成操作 被獨立控制,使發泡劑的引人操作與在成核前對單相溶 液的維持操作可被獨立控制,與傳統方法比較', 本發明德融聚合物混合物上更易於保持“ ^夠高的壓 力” ’以保證發㈣的完全溶解與a止在成核前的單相 溶液的次相形成,使有利於更高發泡龍解度的單相溶 液的生成。此種易於獲得^加在單相溶液上的更高維持Moreover, the method of the present invention independently controls the formation operation of the blowing agent and the single-phase returning operation without considering the optimum solubility under a certain pressure, so that the introduction and operation of the foaming agent are achieved. The pre-nuclear maintenance operation of the single-phase solution can be independently controlled, and compared with the conventional method, the ferrite polymer mixture of the present invention is easier to maintain "^high enough pressure" to ensure complete dissolution of the hair (four) and The formation of a secondary phase of the single phase solution prior to nucleation results in the formation of a single phase solution that is advantageous for higher foaming resolution. This is easy to obtain and is more maintained on a single phase solution.

壓力的操做況,料擠塑技術,本發财助於提供料 液維成核前更高於傳統的持續高壓,以利於在單相溶液 上提供更大的壓降速率。 099145967 表單編號A0101 如上述所示,在本發明中,藉由本發明纽的幫助 ’以易於完成本發明方^例如,本發明在第四圖〜十圖 中例示的系統,可提供本發明的-種形成發泡產品的方 法’其在-聚合物加工系統中將聚合物材料由聚合物加 工空間的-上游經過可選擇的路徑向與_下游方向末端 出口連接的—帶人口的模腔輸m在環境條件下呈 氣!二劑進入聚合物材料;以及由聚合物材料形成 第45頁/共62頁 201226458 發泡產品。过也 ~中’聚合物材料由聚合物加工空間的上游 向可選擇的孜 ^ 崎傻的一被選擇的路徑輸送時’聚合物材料 T由°亥被選擇的路#向下游輸送。而且’如本發明圖 中的例示,平人n , 來合物加工空間的上游連接至少兩條所述的 使I合物材料由聚合物加工空間的上游通過開關 、置可、擇的向該至少兩條所述的路徑的該被選擇的路 徑輸送。而日 及’遠至少兩條所述的路徑通過開關裝置連 接下游使聚合物材料由該被選擇的路徑向下游輸送時 聚口物材料停止由該可選擇的路徑的上游向該被選擇 的路徑輪送。m ^ Q而’藉由本發明系統的幫助’使本發明 °用於掷塑、注塑或其他發泡加工的技術生產;使 本發明方法形成的發泡產品 ,可包括擠塑發泡產品或模 塑Ί务泡產ϋ 〇> 或吹塑發泡產品或注塑發泡產品。 本發明系統的此種改進,使本發明方法與傳統方法 目比可在較低壓力下引入發泡劑,使發泡劑的引入過 1 乂及發电劑與熔融聚合物的混合過程湘對變成較為 谷 而且相對更易於在料液成核前對料液維持很高的 持續壓力,以女 乂有益於在較低的發泡劑引入壓力下獲得料 的發泡劑溶解度。其中,在料液成核前對料液 維持很高的拄接^ 守續壓力,更可以降低或防止壓力波動造成 的不想要的發Λ '包劑成核;而不同於傳統方法為防止不想 要的發泡齊I】成、y # x,相對限制在高壓下的料液中的發泡劑 :,最大發泡劑溶解度的某一百分比之下。此種改 進,,、傳統方法4 液成核前對料a 使使本發明方法相對更易於在料 099145967 第46頁/共62頁 對較不需要去=持很高的持續壓力;_,本發明相 表單編號_1〜因發泡_引人壓力限韻造成的料 099207909 201226458 液成核前對料液所能提供的持續 泡劑濃度的限制。 高壓’對料液中所含發 無論如何,對-播塑技術的進—步改進,高麼降速 率利於低發泡劑含量《合物㈣室賴,藉由在成核 裝置前的可發泡材料上的更高壓力,與配合傳統發泡擠 塑技術適當設計的-成核裝置,以易於獲得較傳統更高 的壓降速率在本發明中已提出。 此外,當單相溶液中發泡劑的含量較高時,為減少 氣室群聚的發生,適當的料液黏度保持與氣室凍結是必 Ο 要的,其達成可藉由聚合物材料的選擇、溫度的控制、Pressure operation, material extrusion technology, this financing helps to provide a higher pressure drop rate than single-phase solution before the nucleation of the feed liquid is higher than the conventional continuous high pressure. 099145967 Form No. A0101 As described above, in the present invention, by the aid of the present invention, it is possible to easily complete the present invention. For example, the system exemplified in the fourth to tenth drawings of the present invention can provide the present invention - A method of forming a foamed product which in a polymer processing system transfers the polymer material from the upstream of the polymer processing space through a selectable path to a cavity with a population that is connected to the downstream end outlet Gas in ambient conditions! Two doses into the polymer material; and a polymer material to form a foamed product on page 45 of 62, 201226458. When the polymer material is transported from the upstream of the polymer processing space to the optional 孜 崎 崎 崎 ’ ’ ’ ’ ’ ’ ’ ’ ’ 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物Further, as exemplified in the drawings of the present invention, at least two of the above-mentioned materials for the processing of the complex processing space are connected to the upstream of the polymer processing space by a switch, which is optional. The selected path of at least two of said paths is transported. While the at least two of said paths are connected downstream by the switching means to transport the polymeric material downstream from the selected path, the agglomerate material is stopped upstream of the selectable path to the selected path Round. m ^ Q and 'with the aid of the system of the invention' enables the invention to be used in the production of plastics, injection molding or other foaming processes; the foamed products formed by the process of the invention may comprise extruded foamed products or moulds Ί Ί 泡 泡 〇 或 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Such an improvement of the system of the present invention allows the method of the present invention to introduce a blowing agent at a lower pressure than the conventional method, so that the introduction of the blowing agent over 1 乂 and the mixing process of the power generating agent and the molten polymer It becomes relatively grainy and relatively easier to maintain a high sustained pressure on the feed liquid before the nucleation of the feed liquid, and the virgin is beneficial for obtaining the foaming agent solubility of the feed under a lower blowing agent introduction pressure. Among them, before the liquid nucleation, the feed liquid maintains a high splicing and continuous pressure, which can reduce or prevent the undesired bun of the pressure fluctuation caused by the nucleation of the bag; instead of the traditional method to prevent the unwanted The desired foaming ratio I], y # x, is relatively limited to the blowing agent in the liquid under high pressure: a certain percentage of the solubility of the maximum blowing agent. Such an improvement, the conventional method 4 liquid nucleation pre-feeding a makes the method of the invention relatively easier to feed on the 099145967 page 46 / total 62 page is relatively unnecessary to go = high sustained pressure; _, this Invention Phase Form No._1~Materials due to foaming_inducing pressure limit rhyme 099207909 201226458 Limitation of the continuous foaming concentration that can be provided by the liquid before nucleation. The high pressure 'in the feed liquid, in any case, the advancement of the - sowing technology, the high drop rate is conducive to the low foaming agent content "composite (4) room Lai, by the nucleation device before the hair Higher pressures on the foam material, and nucleation devices suitably designed in conjunction with conventional foam extrusion techniques, have been proposed in the present invention to facilitate the acquisition of higher pressure drop rates than conventional. In addition, when the content of the blowing agent in the single-phase solution is high, in order to reduce the occurrence of gas cell clustering, it is necessary to maintain the proper viscosity of the liquid and the freezing of the gas chamber, which can be achieved by the polymer material. Selection, temperature control,

[0005] 定泡劑的加入以及其他已提出的可用方法。 本說明書實施例所述的内容僅僅是對發明構思的實 現形式的列舉’本發明的保護範圍不應當被視為僅限於 實施例所陳述的具體形式,本發明的保護範圍也及于本 領域技術人員根據本發明構思所能夠想到的等同技術手 段。 【圖式簡單說明】 第一圖為傳統系統的一組成示意圖’說明傳統方法的實 施方案,以及依據本發明方法的第一實施方案。 第二圖為本發明系統的一組成示意圖,說明依據本發明 方法的第二實施方案。 第三圖為本發明系統的—變異的組成示意圖,說明依據 本發明方法的第二實施方案。 第四圖為本發明系統的另-變異雜成示意圖,說明依 099145967 據本發明方法的第三與第四實施方案。 第玉圖為本發明系統的另一變異的組成示意圖 表單編號A0101 第4?頁/共62貢 ,說明依 0992079096-0 201226458 據本發明方法的第六實施方案。 第六圖為本發明系統的另一變異的組成示意圖,說明依 據本發明方法的第五實施方案。 第七圖為本發明系統的另一變異的組成示意圖,說明依 據本發明方法的第七實施方案。 又 第八圖為本發明系統的另一變異的組成示意圖。 第九圖為本發明系統的另一變異的組成示意圖。 第十圖為本發明系統的另—變異的組成示意圖。 【主要元件符號說明】 [0006] 1加料筒 103開關 11系統 2儲料筒 31球式止逆閥 42活塞 6閥門 10.1加工裝置 108出料筒 12料斗 21柱塞 4出料筒 5通道 7齒輪幫浦 102連接通道 1 0 9料斗 13螺桿 22活塞 41柱塞 51閥門 099145967 表單編號A0101 第48頁/共62頁 0992079096-0[0005] The addition of a foam stabilizer and other methods that have been proposed. The content of the embodiments of the present specification is merely an exemplification of the implementation of the inventive concept. The scope of the present invention should not be construed as being limited to the specific forms set forth in the embodiments. The scope of the present invention is also Equivalent technical means that a person can think of in accordance with the inventive concept. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of a conventional system' illustrating an embodiment of a conventional method, and a first embodiment of the method according to the present invention. The second figure is a schematic diagram of a composition of the system of the present invention illustrating a second embodiment of the method in accordance with the present invention. The third figure is a schematic representation of the composition of the system of the invention, illustrating a second embodiment of the method according to the invention. The fourth figure is a further variant of the system of the invention, illustrating the third and fourth embodiments of the method according to the invention in accordance with 099145967. The first jade diagram is a schematic diagram of another variation of the system of the present invention. Form No. A0101, page 4, total 62, illustrating a sixth embodiment of the method according to the present invention according to 0992079096-0 201226458. Figure 6 is a schematic diagram showing another variation of the system of the present invention, illustrating a fifth embodiment of the method according to the present invention. Figure 7 is a schematic diagram showing another variation of the system of the present invention, illustrating a seventh embodiment of the method according to the present invention. Yet another eighth is a schematic diagram of another variation of the system of the present invention. The ninth diagram is a schematic diagram showing the composition of another variation of the system of the present invention. The tenth figure is a schematic diagram showing the composition of another variation of the system of the present invention. [Main component symbol description] [0006] 1 feeding cylinder 103 switch 11 system 2 storage cylinder 31 ball type check valve 42 piston 6 valve 10.1 processing device 108 discharge cylinder 12 hopper 21 plunger 4 discharge cylinder 5 channel 7 gear Pump 102 connection channel 1 0 9 hopper 13 screw 22 piston 41 plunger 51 valve 099145967 Form No. A0101 Page 48 / Total 62 Page 0992079096-0

Claims (1)

201226458 七、申請專利範圍: 1 . 1. 一種將單相溶液注入模具形成發泡產品的方法,該方法 獲得該單相溶液的步驟包含: 1) 、發泡劑的引入步驟,在一具有螺桿的加工裝置中輸 送聚合物材料,並引入在環境條件下呈氣態的發泡劑進入 該聚合物材料形成聚合物混合物的料液; 2) 、料液輸送的緩衝步驟,輸送該料液從該加工裝置的 出口進入一被選擇的儲料筒,且控制壓力使該料液的該發 泡劑的一部分溶解於該聚合物材料中; 〇 3)、單相溶液的獲得步驟,控制壓力使該被選擇的儲料 筒中的該料液的該發泡劑與該聚合物材料相互溶解,以獲 得該單相溶液; 其中該獲得單相溶液過程中該控制壓力的變動不影響該發 泡劑的引入。 2 .如申請專利範圍第1項所述的方法,其中該加工裝置的出 口經開關裝置連接至少兩個所述的儲料筒,以輸送該料液 從該加工裝置的出口進入該至少兩個所述的儲料筒的該被 ^ 選擇的儲料筒。 3 .如申請專利範圍第2項所述的方法,其中該單相溶液的獲 得步驟進一步為:輸送該料液從該被選擇的儲料筒進入與 該被選擇的儲料筒連接的一出料筒,並控制壓力使該料液 的該發泡劑與該聚合物材料相互溶解,以獲得該單相溶液 〇 4 .如申請專利範圍第3項所述的方法,其中每個所述的儲料 筒各自連接一個所述的出料筒。 099145967 表單編號A0101 第49頁/共62頁 0992079096-0 201226458 如申請專利第㈣所 筒連接同-所述的出㈣。M,其巾全部所述的儲料 如申請專利範㈣5項所_ 所述的儲料筒中的該料液的量少’ 量輸送至每個 的該料液的量。 ^於#輪送至該出料筒中201226458 VII. Patent application scope: 1. A method for injecting a single-phase solution into a mold to form a foamed product, the method for obtaining the single-phase solution comprises: 1) a step of introducing a foaming agent, having a screw The processing device transports the polymer material and introduces a blowing agent which is gaseous under ambient conditions into the polymer material to form a liquid mixture of the polymer mixture; 2) a buffering step of conveying the liquid, and conveying the liquid from the The outlet of the processing device enters a selected storage tank, and the pressure is controlled to dissolve a portion of the blowing agent of the liquid in the polymer material; 〇3), the step of obtaining the single-phase solution, controlling the pressure to The foaming agent of the liquid in the selected storage tank and the polymer material are mutually dissolved to obtain the single-phase solution; wherein the variation of the control pressure during the process of obtaining the single-phase solution does not affect the foaming agent Introduced. 2. The method of claim 1, wherein the outlet of the processing device is connected to at least two of the storage cartridges via a switching device to deliver the feed liquid from the outlet of the processing device into the at least two The selected storage cartridge of the storage cartridge. 3. The method of claim 2, wherein the step of obtaining the single-phase solution is further: transporting the feed liquid from the selected storage drum into a connection with the selected storage cylinder a barrel, and controlling the pressure to dissolve the foaming agent of the liquid and the polymer material to obtain the single-phase solution 〇4. The method of claim 3, wherein each of the The cartridges are each connected to one of the discharge cylinders. 099145967 Form No. A0101 Page 49 of 62 0992079096-0 201226458 If the patent (4) is connected to the same - described (4). M, all of the stocks of the towels are as small as the amount of the liquid in each of the storage tanks as described in the fifth paragraph of the patent application (4). ^于# is sent to the discharge cylinder 送該料液從該被選_儲 法,其中當尚未完成輪 接的該出料筒,且已完祕^ 被選擇的儲料筒連 凡成輸送β亥料液從該加工裝置進入I 餘的該儲料筒時’暫停該加工裝置的該料液的輸送。 t申清專利範圍第卜6項所述的方法,其中包含使該單相 =迅料壓降注入該模具的模腔中,以獲得成核的 t 〇物材料前驅物。The feed liquid is sent from the selected storage method, wherein the discharge cylinder that has not been completed is completed, and the selected storage tank is continuously transported to the β-series liquid from the processing device to enter the remaining When the cartridge is being stored, the delivery of the liquid of the processing device is suspended. The method of claim 6, wherein the single phase = rapid pressure drop is injected into the mold cavity of the mold to obtain a nucleated t precursor material precursor. 10 . 099145967 一種形成發泡產品的方法,包含: 在-聚合物加工系統中將聚合物材料由聚合物加工空間的 一上游經過可選擇的路徑向與—下游方向末端出σ連接的 一帶入口的模腔輸送; 引入在環境條件下呈氣_魏魏々㈣合物材料; 以及由該聚合物材料形成談發泡產总,其中 該聚合物材料由該聚合物加工空間的該上游向該可選擇的 路徑的-被選擇的路徑輸送時’該聚合物材料停止由該被 選擇的路徑向該下游輸送。 如申請專利範圍第9項所述的方法,其中該聚合物加工空 間的該上游連接至少兩條所述的路徑,使該聚合物材料由 "亥聚合物加工空間的該上游通過開關裝置可選擇的向該至 少兩條所述的路徑的該被選擇的路徑輸送。 如申請專利範圍第10項所述的方法,其中該至少兩條所述 表單編號Α0101 第50頁/共62頁 0992079096-0 11 . 201226458 的路徑通過開關裝置連接該下游,使該聚合物材料由該被 選擇的路徑向該下游輸送時,該聚合物材料停止由該可選 擇的路徑的該上游向該被選擇的路徑輸送。 a .如申請專利範圍第㈣項所述的方法,其中該聚合物材 料由該被選擇的路徑向該下游輸送時,該聚合物材料停止 由<亥可選擇的路的該上游向該被選擇的路徑輸送。 13 · τ申請專利範圍第9-u項所述方法,其中該形成發泡產 匕括擠塑發泡產品或模塑發泡產品或吹塑發泡產品或注 塑發泡產品。 ° 14 ·—種形成發缝品的純,職祕聚合物材料向下游方 向的末端出口連接的一帶入口的模腔輸送,並引入在環境 條件下呈氣態的發泡劑進入該聚合物材料,其中該系統包 括: —具有螺桿的加工裝置; 至少兩個儲料筒,該儲料筒的入口經開關裝置與該加工裝 置的出口連接; 〇 至少-出料筒,該出料冑的入口卿雜該儲料筒的出口 連接,並於該連接的通道上設開關裝置;以及 至少一個所述的帶入口的模腔’該模腔的入口與相應的該 出料筒的所述的末端出口連接。 15 如申請專利範圍第14所述的系統,其中每個所述的儲料筒 的出口各自連接一個所述的出料筒的入口。 16 如申請專利範圍第I4項所述的系統,其中全部所述的儲料 筒的出口連接同一所述的出料筒的入口。 如申請專利範圍第16項所述的系統,其中所述的儲料筒的 容量小於所述的出料筒的容量。 099145967 表單編號A0101 第51頁/共62頁 0992079096-0 ^ 17 201226458 18 . 如申請專利範圍第14-17項所述的系統,其中進一步包含 一成核裝置,並該出料筒經該成核裝置連接該模腔。 099145967 表單編號A0101 第52頁/共62頁 0992079096-010 . 099145967 A method of forming a foamed product, comprising: in a polymer processing system, the polymeric material is passed from an upstream of the polymer processing space through a selectable path to an inlet with a sigma-to-downstream end Cavity transport; introducing a gas _ Wei Wei 々 (tetra) material under ambient conditions; and forming a foaming product from the polymer material, wherein the polymer material is from the upstream of the polymer processing space When the selected path is transported by the selected path, the polymer material stops being transported by the selected path to the downstream. The method of claim 9, wherein the upstream of the polymer processing space is connected to at least two of the paths, such that the polymer material is passed through the switching device of the upstream of the "polymer processing space. The selected one of the selected paths is transported to the at least two of the paths. The method of claim 10, wherein the path of the at least two of the form numbers Α0101 50/62 pages 0992079096-0 11 . 201226458 is connected to the downstream through a switching device, so that the polymer material is When the selected path is transported to the downstream, the polymeric material ceases to be transported by the upstream of the selectable path to the selected path. The method of claim 4, wherein when the polymeric material is transported to the downstream by the selected path, the polymeric material is stopped by the upstream of the <Hai selectable path to the The selected path is delivered. The method of claim 9, wherein the foaming product comprises an extruded foamed product or a molded foamed product or a blown foamed product or a molded foamed product. ° 14 · The pure form of the hair-forming product, the polymer material is transported to the cavity of the inlet with the end outlet connected in the downstream direction, and a foaming agent which is gaseous under ambient conditions is introduced into the polymer material. Wherein the system comprises: - a processing device having a screw; at least two storage cylinders, the inlet of the storage cylinder being connected to the outlet of the processing device via a switching device; 〇 at least - a discharge cylinder, the inlet of the discharge raft Disposing an outlet connection of the storage cylinder and providing a switching device on the connecting passage; and at least one of the inlet mold cavity 'the inlet of the mold cavity and the corresponding end outlet of the discharge cylinder connection. The system of claim 14, wherein each of said outlets of said cartridges are each connected to an inlet of said one of said discharge cylinders. The system of claim 1, wherein all of said outlets of said cartridge are connected to an inlet of said discharge cylinder. The system of claim 16 wherein the capacity of the storage cartridge is less than the capacity of the discharge cylinder. Forms No. A0101 Page 51 of 62 0992079096-0 ^ 17 201226458 18. The system of claim 14-17, further comprising a nucleating device, and the hopper is nucleated The device is connected to the mold cavity. 099145967 Form No. A0101 Page 52 of 62 0992079096-0
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