CN1413818A - Elastomer and heat-resistance buffer material for die forming containing the elastomer - Google Patents
Elastomer and heat-resistance buffer material for die forming containing the elastomer Download PDFInfo
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- CN1413818A CN1413818A CN 02147170 CN02147170A CN1413818A CN 1413818 A CN1413818 A CN 1413818A CN 02147170 CN02147170 CN 02147170 CN 02147170 A CN02147170 A CN 02147170A CN 1413818 A CN1413818 A CN 1413818A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
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Abstract
The invention provides an elastic body of which quality is maintained without bleeding even if used under high temperature and high pressure. An elastic body comprises an elastic material, wherein said elastic body comprises inside an additive which adsorb components which can bleed from said elastic body under heating and/or pressure.
Description
Technical field
The present invention relates to elastomer and contain the heat-resisting padded coaming of this elastomeric moulding pressing.
Background technology
Moulding pressing is used for building decorative glued boards such as paper phenolic laminated sheet, glass epoxy resin laminate or melmac, the phenolic resins of use in printed circuit board etc. with heat-resisting padded coaming, be the moulding of the tabular sheet material (resin system pre impregnated material) of main component with synthetic resin, also be used for element assembling process recently at liquid crystal.
In general, being used for the critical function that this moulding pressing undertakes with heat-resisting pre impregnated material is: absorb concavo-convex, the distortion, in uneven thickness etc. of heating plate, mirror board, transmit impartial pressure and heat on each face of moulding pre impregnated material (B stage condition).That is to say in hot pressure process, pre impregnated material is by heating, in case viscosity descends, after turning back to liquid condition, will solidify gradually, so when moulding, in order on each face of pre impregnated material, to send heat and pressure equably from heating plate, by being situated between with demoulding film or Copper Foil, configuration speculum panel is mingled with padded coaming between heating plate, speculum panel on this pre-preg sheet material.
All the time,, buffering paper such as brown paper are adjusted to suitable condition of molding, overlapping several uses as this padded coaming.In use, owing to be subjected to heat and pressure, paper pulp suffers damage, and embrittlement can only be used once when condition of molding is strict.For this reason, need to change brown paper at every turn, in addition, need prepare out the paper number that conforms with condition of molding in advance, and can not use machinery during assembling in press, existence can not be saved the problem of manpower.Also have, need huge brown paper stock, during the stock,, also need to carry out air conditioning for not being subjected to the influence of open-air (moisture), very bothersome.In addition, the paper powder disperses from the section of brown paper, sometimes product is had baneful influence.
For this reason, developed replacement brown paper, had stable on heating fiber to carry out lamination based on the padded coaming of rubber, aromatic polyamide fibre etc., make the incorporate padded coaming of its complexing with needle point method, because different conditions of molding though access times have nothing in common with each other, can use hundreds of times.
To there be stable on heating fiber to carry out lamination based on the padded coaming of above-mentioned rubber, aromatic polyamide fibre etc., and adopt the incorporate padded coaming of needle point method complexing under HTHP, can use repeatedly.But because the universal fast and miniaturization of miniaturization, high performance and the PC etc. of household appliances recently is also more and more stricter to the desired performance of printed circuit board (PCB), quality.
Meanwhile, rubber is that the padded coaming of main body is rich in shock-absorbing capacity at the use initial stage, use well, but because make rubber embrittlement rapidly repeatedly under HTHP, buffering capacity also sharply reduces, and laminate is had the danger that produces substandard products.Recently, the high-quality grade that increase produced that former unchallenged quality can not satisfy corresponding to distribution strip number between stitch improves requirement, can not use sometimes in addition.
In contrast, stable on heating fibers such as aromatic polyamide fibre are carried out lamination, adopt the incorporate felt shape of needle point method complexing padded coaming under HTHP, can use repeatedly, but increase along with access times, the resin flows of the moulding product that produce when resulting from shaping substrate, thereby on padded coaming, produce the reduction of concavity stamp and felt shape padded coaming self buffering capacity, owing to this reason, during moulding to all pressures of pre impregnated material variation slowly, the rare concave-convex surface of unchallenged in the past laminate etc. can not satisfy between the stitch of nearest distributing board, the demand that the distribution strip number increases, as if owing to this reason, padded coaming has also arrived the end of life.
Recently, along with the sales volume of notebook class PC increases severely, usedly in the element assembly process of LCD panel scold that with fluorubber, the silicone sponge people of padded coaming it has following shortcoming as moulding pressing.
Fluorubber can produce toxic gas, after finishing, can not remove processing, silicone sponge can only use for several times, the operating cost height, in uneven thickness, therefore produce the pressure inequality, produce low molecular siloxanes, the problem of existence is: consequent draining, oil extraction can have harmful effect to product.
Present inventors are in order to reach the desired high-quality of above-mentioned laminate, through conscientiously research repeatedly, the exploitation and patent application novel padded coaming (patent application 2000-283715), its combine rubber be main body padded coaming strong point and use the strong point of heat resistance fiber felt shape padded coaming, make the core rubber layer keep the space of appropriateness, can keep all pressure property and stable intensification for long-time lamination.
But, above-mentioned padded coaming is rich in reaching the desired high-quality buffering capacity of laminate at the use initial stage, for lamination, can bring into play all pressure property and stable intensification, access times increase, simultaneously can see the age resistor (hereinafter to be referred as oozing out) that oozes out from rubber layer,, aspect access times, problem be arranged though can continue to satisfy the quality of moulding product from the space of obturation.
The objective of the invention is to address the above problem, provide not produce in the time of under HTHP, to use and ooze out, and keep high-quality elastomer.
Summary of the invention
Present inventors are in order to solve above-mentioned problem, find in the process of studying repeatedly: interpolation can absorb because heating and/or pressurization and the composition that oozes out from elastomer age resistor additives such as (antioxidants) for example, can address the above problem, finish the present invention.
That is to say, the present invention relates to contain the elastomer of elastomeric material, contain the additive that can absorb in the above-mentioned elastomer owing to the composition that oozes out in heating and/or the pressurization own elasticity body.
In addition, the above-mentioned elastomeric feature that the present invention relates to is: elastomeric material has hear resistance.
In addition, above-mentioned elastomeric feature involved in the present invention is: elastomeric material is a rubber.
And above-mentioned elastomeric feature involved in the present invention is: elastomeric material presents the porous that is dispersed with many spaces.
In addition, above-mentioned elastomeric feature involved in the present invention is: additive is one or more the porous material of choosing among diatomite, calcium silicates and active carbon.
And above-mentioned elastomeric feature involved in the present invention is: with respect to elastomeric weight, the addition of additive is in the scope of 5wt%～50wt%.
Also have, above-mentioned elastomeric feature involved in the present invention is: elastomeric material expands at thickness direction along with the temperature in the forming process rises, and keeps the space.
Moreover above-mentioned elastomeric feature involved in the present invention is to contain stable on heating woven cloths and/or non-weaving cloth.
In addition, the present invention relates to the heat-resisting padded coaming of moulding pressing, it is characterized in that with above-mentioned elastomer be core.
Contain the elastomer of the present invention that can absorb the additive that oozes out composition and catch these compositions, under HTHP, also can not produce and ooze out owing to additive.Also have, elastomer of the present invention not only prevents the effect of oozing out because of absorption produces, and hard solid additive is present in the elastomer and elastomer in the space around, bring into play structural enhancing effect, for pressurizeing repeatedly, heating, elastomer and elastomeric space can not collapse, and can keep its shape.
Moulding pressing of the present invention owing to use above-mentioned elastomer, has improved the rigidity of padded coaming with heat-resisting padded coaming, even can keep the space adding to depress still, can keep thickness like this, can keep sufficient buffering capacity for a long time thus.In addition, when moulding pressing of the present invention uses the material of glass transition point below room temperature with heat-resisting padded coaming, whole temperature province can be kept soft rubbery state in the hot briquetting process, therefore absorb concavo-convex, the distortion, uneven thickness of heating plate, mirror board etc., correspondingly, can fully make high-quality product at the positive long-time pressure that transmits equalization of moulding pre impregnated material.With felt shape padded coaming that above-mentioned elastomer is integrated, so gained felt shape padded coaming is by changing weight per unit area, and the adjustable heat amount of movement is kept the space in the elastomer, correct the temperature imbalance in the heating plate, transmit uniform heat and give pre impregnated material.
The description of the drawings
Fig. 1 represents the sectional view (in elastomer do not have base cloth) of moulding pressing of the present invention with an embodiment of heat-resisting padded coaming
Fig. 2 represents the sectional view (base cloth in elastomer arranged) of moulding pressing of the present invention with other embodiment of heat-resisting padded coaming
Fig. 3 (a) and (b) are represented the sectional view of moulding pressing of the present invention with other embodiment of heat-resisting padded coaming
(a): do not have base cloth in the elastomer, the bonding hear resistance sheet material in felt two sides
(b): do not have base cloth in the elastomer, the bonding hear resistance sheet material of felt single face
Fig. 4 (a) and (b) are represented the sectional view of moulding pressing of the present invention with other embodiment of heat-resisting padded coaming
(a): base cloth is arranged, the bonding hear resistance sheet material in felt two sides in the elastomer
(b): base cloth is arranged, the bonding hear resistance sheet material of felt single face in the elastomer
Fig. 5 (a) and (b), (c) represent elastomer, felt, heat resistant adhesive sheet material and heat-resisting sheet material the formation sectional view bonding before of moulding pressing of the present invention with heat-resisting padded coaming
The sectional view of void-free existing product in Fig. 6 elastomer
The specific embodiment
The following describes example of the present invention.
Being used for elastomeric material of the present invention has hear resistance, if under the moulding pressing condition (for example condition of molding of glass epoxy resin laminate, temperature: 180～210 ℃, pressure: 30～50kg/cm
2, the condition of molding of paper phenolic sheet, temperature: 160～190 ℃, pressure: 80～120kg/cm
2, pressurized conditions, the temperature of liquid crystal cell assembly process: 160～180 ℃, pressure: 3～5kg/cm
2) can use, can use any material so.In addition, though its glass transition point below room temperature, the whole temperature province in the hot briquetting process is soft rubber-like, more satisfactory, along with temperature in the hot briquetting process rises, expand at thickness direction, but can keep the space in the elastomer, this point is also more satisfactory.Such elastomeric material, copolymer, mixture that rubber such as preferred polyisoprene rubber, butadiene-styrene rubber, polybutadiene rubber, neoprene, acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber, carboxylated nitrile rubber, butyl rubber, ethylene propylene rubber, esters of acrylic acid rubber, fluorubber, silicon rubber, CSM, chlorinated polyethylene rubber, epichlorohydrin rubber and several materials of selecting from these rubber are formed.
The thickness of elastomeric material, the size in space and voidage will be corresponding to the thickness and precision of heating plate, the thickness and precision of pre impregnated material, the desirable thickness and precisions such as copper plating film laminate of moulding, suit to select according to the buffering capacity of necessity.Preferred 0.3～5.0mm the scope of thickness for example, preferred 20～200 μ m of pore size, 50～150 μ m preferably, voidage is preferred 5～80%, preferably 10～60% scope.
In elastomer of the present invention, as absorbing the additive that from elastomer, oozes out composition owing to heat, can adopt any one material that hear resistance is arranged and can reach effect of the present invention, porous materials such as for example preferred diatomite, calcium silicates, active carbon.
The addition of above-mentioned additive need consider that sufficient assimilation effect, elastomeric sheet material processability and buffering capacity use, for example with respect to elastomeric weight, and the scope of preferred 5wt%～50wt%, the preferably scope of 5wt%～40wt%.
In addition, elastomer of the present invention can contain age resistor (antioxidant), silica, carbon black, vulcanizing agent etc., usually, as owing to composition is oozed out in heating, consider substituted diphenylamine (Naugard445 (Uniroyal Chem)), ノ Application Off レ Star Network ス DCD age resistor (antioxidant) such as (Seiko chemistry) usually.
Elastomer of the present invention can enter in the elastomer it by flooding stable on heating woven cloths or non-weaving cloth for the confining force of dimensional stability in the use and raising bubble as required.The material of heat-resisting woven cloths and non-weaving cloth can adopt glass fibre, pbo fiber, aromatic polyamide fibre etc.
For producing elastomer of the present invention, on elastomeric material, add above-mentioned additive, plastics blowing agent is distributed in the heat-resistant elastic material equably.After being made into certain thickness sheet material, produce elastomer of the present invention by sulfuration.
When elastomer of the present invention is used as moulding pressing with heat-resisting padded coaming, can directly use elastomer, also can be on its two sides, single face or middle bonding be the base cloth formed of heat resistant fibre such as aromatic polyamide fibre and the felt shape padded coaming that contains the fiber felt layer by primary raw material, use as core.
The above-mentioned felt shape padded coaming that contains heat resistant fibre can be adjusted programming rate in the moulding pressing by changing weight per unit area, and is very desirable.
The heat resistant fibre that is used for base cloth and felt is (for example condition of molding of glass epoxy resin laminate, a temperature: 180～210 ℃, pressure: 30～50kg/cm under the moulding pressing condition of HTHP
2, the condition of molding of paper phenolic sheet, temperature: 160～190 ℃, pressure: 80～120kg/cm
2, pressurized conditions, the temperature of liquid crystal cell assembly process: 160～180 ℃, pressure: 3～5kg/cm
2) can keep stablizing any heat resistant fibre that uses for a long time,, for example use the fiber of from fatty polyamide fiber, poly-terephthalic acids second two ester fibers, polyphenylene sulfide fibre, polyetheretherketonefiber fiber, aromatic polyamide fibre etc., suitably selecting.
The bonding of elastomer of the present invention and felt shape padded coaming can be used the heat resistant adhesive film so if after the sulfuration of elastomeric material, if before sulfuration, can be undertaken bonding by pressurization processing in sulfuration.
In addition, on the two sides, when single face or middle bonding felt shape padded coaming, as required, utilize on the surface of above-mentioned felt shape padded coaming that heat-resistant glue or heating pressurization produce from cementability, with hear resistance sheet materials such as bonding hear resistance paper, hear resistance woven cloths, heat-resistant film, metal formings.At this moment, the hear resistance sheet material becomes film, cuts off gas permeability, and what therefore can not only produce province's labourization produces automatic conveyance by the attraction backing plate, also can prevent felt shape padded coaming wildness and depilation.
Embodiment
Below, the embodiment with heat-resisting padded coaming is elaborated with regard to elastomer of the present invention and moulding pressing, but the present invention is not limited to these embodiment.
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, so that space appropriateness in the diatomite as porous material (trade name ラ ジ オ ラ イ ト) of 5wt% and rubber is disperseed, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming that the heat resistance fibers such as aromatic polyamide of (order is paid and is Japanese basis weight) are formed adds and puts into leaf gauge (ゲ one ジ) man-hour, by adjusting thickness (bonding condition: 200 ℃, 10kg/cm
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape padded coaming are bonding mutually, obtain adopting order to pay and are 2000g/m
2The heat-resisting padded coaming of the elastomeric moulding pressing of the present invention.
Embodiment 2
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 30wt% ジ オ ラ イ ト and rubber, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape material are bonding mutually, obtain adopting order to pay and are 2190g/m
2The heat-resisting padded coaming of the elastomeric moulding pressing of the present invention.
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 50wt% ジ オ ラ イ ト and rubber, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing voidage 40%, elastomer and felt shape material are bonding mutually, obtain adopting order to pay and are 2250g/m
2The heat-resisting padded coaming of the elastomeric moulding pressing of the present invention.
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 15wt% ジ オ ラ イ ト and rubber, make the elastomer that core thickness is 0.5mm (rubber) sheet material.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 2.5mm), when guaranteeing that voidage is 20%, elastomer and felt shape material are bonding mutually, obtain adopting order to pay and are 1485g/m
2The heat-resisting padded coaming of the elastomeric moulding pressing of the present invention.
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the fluoro acrylic ester rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 30wt% ジ オ ラ イ ト and rubber, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape material are bonding mutually, obtain adopting order to pay and are 2150g/m
2The heat-resisting padded coaming of the elastomeric moulding pressing of the present invention.
Comparative example 1
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 3wt% ジ オ ラ イ ト and rubber, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape material are bonding mutually, obtain order and pay and be 1990g/m
2The heat-resisting padded coaming of moulding pressing.
Comparative example 2
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the ethyl acrylate rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness in the ラ of 55wt% ジ オ ラ イ ト and rubber, make the elastomer that core thickness is 1.0mm (rubber) sheet material.Pay 450g/m in its two sides configuration purpose
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape material are bonding mutually, obtain order and pay and be 2260g/m
2The heat-resisting padded coaming of moulding pressing.
Comparative example 3
At glass transition point below room temperature, along with the temperature in the hot briquetting process rises, thickness direction expand as the fluoropropenes acids rubber of elastic rubber material in the mixed plastic blowing agent, disperse so that the space obtains appropriateness, the thickness that is made as core is elastomer (rubber) sheet material of 1.0mm.Pay in its two sides configuration purpose and to be 450g/m
2The felt shape padded coaming formed of heat resistance fibers such as aromatic polyamide, add and put into leaf gauge adjustment thickness (bonding condition: 200 ℃, 10kg/cm man-hour
2, 15 minutes, leaf gauge: 3.0mm), when guaranteeing that voidage is 40%, elastomer and felt shape material are bonding mutually, obtain order and pay and be 2180g/m
2The heat-resisting padded coaming of moulding pressing.
The rerum natura of the embodiment of the invention 1～5 products obtained therefrom and existing product comparative example 1～3 and the result of performance evaluation are as shown in Table 1 and Table 2.
The rerum natura of table 1 embodiment product and comparative example product
| The core material | ??ラジオ ??ライト ??(wt％) | Voidage (%) | Thickness (mm) | Order is paid (g/m 2) | Rubber ten ラ ジ オ ラ イ ト (g/m 2) | Felt (g/m 2) | |
| Embodiment 1 | Ethyl acrylate | ????5 | ????40 | ????3 | ??2000 | ????1100 | ????900 |
| Embodiment 2 | Ethyl acrylate | ????30 | ????40 | ????3 | ??2190 | ????1290 | ????900 |
| Embodiment 3 | Ethyl acrylate | ????50 | ????40 | ????3 | ??2250 | ????1350 | ????900 |
| Embodiment 4 | Ethyl acrylate | ????15 | ????20 | ????2.5 | ??1485 | ????585 | ????900 |
| Embodiment 5 | Fluoro acrylic ester | ????30 | ????40 | ????3 | ??2150 | ????1250 | ????900 |
| Comparative example 1 | Ethyl acrylate | ????3 | ????40 | ????3 | ??1990 | ????1090 | ????900 |
| Comparative example 2 | Ethyl acrylate | ????55 | ????40 | ????3 | ??2260 | ????1360 | ????900 |
| Comparative example 3 | Fluoro acrylic ester | ????0 | ????40 | ????3 | ??2180 | ????1280 | ????900 |
Table 2 endurancing result
| Ooze out state ※ 2 | Space conservation rate ※ 3 | |
| Pressurization number of times ※ 1 | Pressurization number of times ※ 1 | |
| 50 times 100 times 300 times 500 times | 50 times 100 times 300 times 500 | |
| Embodiment | ||
| 1 embodiment 2 | ○????○????○????○ ○????○????○????○ ○????○????○????○ ○????○????○????○ | ○????○????○????○ ○????○????○????○ ○????○????○????○ ○????○????○????○ |
| | ○????○????○????○ | ○????○????○????○ |
| Comparative example 1 comparative example 2 comparative examples 3 | Zero * * * sheet material processing difficulties 0000 | Zero * * * sheet material processing difficulties zero * * * |
※ 1. repeats pressurized conditions: 200 ℃ of 40kg/cm
2Under repeat pressurization, estimate the state that oozes out, the space keeps.
1 cycle: 15 minutes → pressure release opening → repetition 15 minutes is cooled off in the 15 minutes → maintenance 45 minutes → heating that heats up.
※ 2 oozes out state
Zero: felt surface no change, no problem is serviceable condition
*: the felt surface is initially located in the state that oozes out composition
※ 3 space hold modes
Zero: compare with new product, can keep the space of rubber inside
*: compare with new product, the space is in the state of collapse
The bubble footpath that ※ 4. constitutes the space adds man-hour by leaf gauge THICKNESS CONTROL foamed state in pressurization.
The formation of embodiment is at elastomeric two sides bonding felt shape padded coaming, but is not limited thereto, and felt shape padded coaming also can be bonded in elastomeric single face.
Opposite with embodiment in addition, also useful elastomers is clamped felt shape padded coaming.
Also have,, can adopt hear resistance woven cloths or non-weaving cloth as elastomeric rubber layer for the demanding material of dimensional stability.
By table 1 and table 2 as can be known, in elastomers such as ethyl acrylate rubber of the present invention, add such as ラ ジ オ ラ イ ト, absorb ooze out composition the additive addition at 5～50% o'clock, what can effectively prevent to produce under HTHP oozes out.
The addition of additive is 5% when following, and elastomer can not totally absorb and ooze out composition, can see oozing out of early stage appearance.On the contrary, the addition of additive surpasses at 50% o'clock, is difficult to form rubber sheet.
Also have, above-mentioned additive not only absorbs and oozes out composition, also can bring into play the enhancing effect of constructivity in elastomer, so the space that appropriateness is disperseed in elastomer can not collapse, and can keep its form.This can just seem clearly by in the fluoropropenes acids rubber non-additive situation being arranged.That is to say, in fluoropropenes acids rubber because there is not age resistor, appearance of oozing out and additive have or not that it doesn't matter, but showing very big difference aspect the hold mode in space.
Claims (10)
1, a kind of elastomer that contains elastomeric material contains in this elastomer and can absorb because heating and/or pressurization and the additive of the composition that oozes out from this elastomer.
2, the described elastomer of claim 1 is characterized in that elastomeric material has hear resistance.
3, claim 1 or 2 described elastomers is characterized in that elastomeric glass transition point is below room temperature.
4, the described elastomer of each of claim 1～3 is characterized in that elastomer is a rubber.
5, the described elastomer of each of claim 1～4 is characterized in that elastomeric material is porous, has the space of many dispersions.
6, the described elastomer of each of claim 1～5 is characterized in that: additive is one or more the porous material of choosing among diatomite, calcium silicates and active carbon.
7, the described elastomer of each of claim 1～6 is characterized in that: with respect to the weight of elastomeric material, the addition of additive is 5wt%～50wt%.
8, the described elastomer of each of claim 1～7 is characterized in that: elastomeric material expands and the maintenance space at thickness direction along with the temperature in the molding process rises.
9, the described elastomer of each of claim 1～8 is characterized in that containing stable on heating woven cloths and/or non-weaving cloth.
10, the heat-resisting padded coaming of a kind of moulding pressing, it is characterized in that containing with the described elastomer of claim 1～9 is core.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001327844A JP2003128936A (en) | 2001-10-25 | 2001-10-25 | Elastomer and heat resistant cushion material for mold press containing the same |
| JP2001327844 | 2001-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1413818A true CN1413818A (en) | 2003-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02147170 Pending CN1413818A (en) | 2001-10-25 | 2002-10-25 | Elastomer and heat-resistance buffer material for die forming containing the elastomer |
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|---|---|
| JP (1) | JP2003128936A (en) |
| KR (1) | KR20030034000A (en) |
| CN (1) | CN1413818A (en) |
| TW (1) | TW592928B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8709590B2 (en) | 2006-07-18 | 2014-04-29 | Yamauchi Corporation | Hot-press cushion material and manufacturing method of the same |
| CN110785274A (en) * | 2017-06-02 | 2020-02-11 | 山内株式会社 | Hot-pressing cushioning material and method for manufacturing same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4837264B2 (en) * | 2004-07-14 | 2011-12-14 | ヤマウチ株式会社 | Cushion material for heat press |
| JP4746523B2 (en) | 2006-11-28 | 2011-08-10 | ヤマウチ株式会社 | Cushion material for heat press and method for producing the same |
| EP3489007B1 (en) * | 2016-07-22 | 2021-08-04 | Sumitomo Bakelite Co., Ltd. | Method for manufacturing sandwich panel, sandwich panel, composite material sheet, and curved panel member |
-
2001
- 2001-10-25 JP JP2001327844A patent/JP2003128936A/en active Pending
-
2002
- 2002-10-23 KR KR1020020064911A patent/KR20030034000A/en not_active Application Discontinuation
- 2002-10-24 TW TW91124824A patent/TW592928B/en not_active IP Right Cessation
- 2002-10-25 CN CN 02147170 patent/CN1413818A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8709590B2 (en) | 2006-07-18 | 2014-04-29 | Yamauchi Corporation | Hot-press cushion material and manufacturing method of the same |
| CN104742292A (en) * | 2006-07-18 | 2015-07-01 | 山内株式会社 | Cushioning material for heat press and method for producing the same |
| CN110785274A (en) * | 2017-06-02 | 2020-02-11 | 山内株式会社 | Hot-pressing cushioning material and method for manufacturing same |
| CN110785274B (en) * | 2017-06-02 | 2021-12-24 | 山内株式会社 | Hot-pressing cushioning material and method for manufacturing same |
| US11845844B2 (en) | 2017-06-02 | 2023-12-19 | Yamauchi Corp. | Hot press cushioning material and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030034000A (en) | 2003-05-01 |
| JP2003128936A (en) | 2003-05-08 |
| TW592928B (en) | 2004-06-21 |
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