JPS63230316A - Continuous manufacture of synthetic resin foam reinforced with core wire - Google Patents
Continuous manufacture of synthetic resin foam reinforced with core wireInfo
- Publication number
- JPS63230316A JPS63230316A JP62064698A JP6469887A JPS63230316A JP S63230316 A JPS63230316 A JP S63230316A JP 62064698 A JP62064698 A JP 62064698A JP 6469887 A JP6469887 A JP 6469887A JP S63230316 A JPS63230316 A JP S63230316A
- Authority
- JP
- Japan
- Prior art keywords
- core wire
- foaming
- foam
- thermoplastic resin
- synthetic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006260 foam Substances 0.000 title claims abstract description 44
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 21
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000005187 foaming Methods 0.000 claims abstract description 40
- 239000003112 inhibitor Substances 0.000 claims abstract description 19
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 17
- 239000011347 resin Substances 0.000 abstract description 17
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 4
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 4
- 239000003365 glass fiber Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/156—Coating two or more articles simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molding Of Porous Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、表面部が発泡抑制剤で被覆されてなる被覆芯
線を押出成形機の金型から押出される発泡性熱可塑性樹
脂内に連続して供給することを基本として、剛性が大き
いとともに寸法安定性にも優れた品質の均一な合成樹脂
発泡体を容易にかつ能率よく製造可能とする、芯線で補
強された合成樹脂発泡体の連続的製造方法に関するもの
である。Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for continuously inserting a coated core wire, the surface of which is coated with a foaming inhibitor, into a foamable thermoplastic resin extruded from a die of an extrusion molding machine. Continuous synthetic resin foam reinforced with core wire, which enables easy and efficient production of uniform quality synthetic resin foam with high rigidity and excellent dimensional stability. This relates to a manufacturing method.
（従来技術及び発明が解決しようとする問題点）合成樹
脂発泡体内に補強用芯線を埋入してなる発泡長尺体は、
例えば天然木材の代替品等として多くの需要が見込まれ
ているが、補強用芯線を合成樹脂発泡体内に単に埋入す
るのみでは、発泡体内における補強用芯線の位置固定が
満足なものとならず、従って補強用芯線が補強の役割を
十分に果たさないことになる。(Prior art and problems to be solved by the invention) A foamed elongated body made by embedding a reinforcing core wire in a synthetic resin foam,
For example, a lot of demand is expected as a substitute for natural wood, but simply embedding the reinforcing core wire in a synthetic resin foam does not satisfactorily fix the position of the reinforcing core wire within the foam. , Therefore, the reinforcing core wire does not fully fulfill its reinforcing role.
本発明者は、かかる問題点をつぶさに検討した結果、合
成樹脂発泡体内に押入された補強用芯線の周囲部分にお
１．）る合成樹脂の発泡を抑制し、該周囲部分から外側
に向かうにつれて徐々に発泡するようになすならば、合
成樹脂発泡体と補強用芯線とを確実に一体化さ一υうる
、との知見を７＋）た。As a result of careful consideration of these problems, the inventors of the present invention found that 1. ) has been found that if the foaming of the synthetic resin is suppressed and the foaming is allowed to gradually proceed outward from the surrounding area, the synthetic resin foam and the reinforcing core wire can be reliably integrated. 7+).
しかしながら、発泡体の内部乙こすハＪる発泡密度の制
御は、発泡体の表面部における発泡密度を制御するばあ
いとは全く異なり単純ではない。即ち、発泡体の表面部
の発泡密度は、該表面部の冷却温度を調整することによ
って容易に行いうるのであるが、発泡体内部の発泡密度
の調整は、温度条件の調整等といった単純な物理的手段
によっては達成され得ないのである。However, controlling the foam density inside the foam is not as simple as controlling the foam density at the surface of the foam. In other words, the foam density at the surface of the foam can be easily adjusted by adjusting the cooling temperature of the surface, but the foam density inside the foam can be adjusted by simple physical methods such as adjusting temperature conditions. It cannot be achieved by any means.
そこで本発明者は、発泡抑制剤で被覆された被覆芯線を
発泡性樹脂内に供給し、該発泡抑制剤の有する化学的発
泡抑制作用によって発泡体内部の発泡密度を調整すると
いう手段を想到し、本発明を完成させるに至ったもので
ある。Therefore, the present inventor has devised a method of supplying a covered core wire coated with a foaming inhibitor into a foamable resin, and adjusting the foaming density inside the foam by the chemical foaming inhibiting action of the foaming inhibitor. , which led to the completion of the present invention.
（問題点を解決するための手段）
本発明に係る、芯線で補強された合成樹脂発泡体の連続
的製造方法（以下製造方法という）は、合成樹脂発泡体
内に補強用芯線を埋入してなる発泡長尺体を製造するに
際し、芯線の表面部の全体を発泡抑制剤で被覆してなる
被覆芯線を、押出成形機の金型から押出される発泡性熱
可塑性樹脂内に連続して供給し、該発泡抑制剤の発泡抑
制作用によって、芯線の周囲部分における熱可塑性樹脂
の発泡を抑制し、該周囲部分から外側に向かうにつれて
徐々に発泡するようになし、これによって芯線と合成樹
脂発泡体とを一体化することを特徴とする。(Means for Solving the Problems) A method for continuously producing a synthetic resin foam reinforced with a core wire (hereinafter referred to as a "manufacturing method") according to the present invention comprises embedding a reinforcing core wire in a synthetic resin foam. When manufacturing a foamed elongated body, a coated core wire whose entire surface is coated with a foaming inhibitor is continuously fed into a foamable thermoplastic resin extruded from a mold of an extrusion molding machine. The foaming suppressing effect of the foaming suppressant suppresses foaming of the thermoplastic resin in the surrounding area of the core wire, and the foaming gradually increases from the surrounding area toward the outside, whereby the core wire and the synthetic resin foam are It is characterized by the integration of
ここに芯線は、ガラス繊維製や、スチール繊維などの補
強作用を有する金属繊維製等のロービングに、熱硬化性
樹脂液あるいは熱硬化性樹脂を主体に熱可塑性樹脂を含
む樹脂液を含浸させ、該樹脂を加熱し硬化させてなる線
材として、あるいはスチール製単線等の補強作用を有す
る金属製単線として構成されている。芯線をロービング
によって形成するばあいにおける該ロービングに含浸せ
しめられる樹脂液を形成する樹脂としては、エポキシ樹
脂、ポリエステル樹脂、フェノール樹脂あるいはそれら
の変性体である熱硬化性樹脂、又は上記いずれかの熱硬
化性樹脂にアクリル樹脂、ＰＶＣ、ポリアミド等の熱可
塑性樹脂を混入させてなる樹脂を好適に採用しうる。Here, the core wire is made by impregnating a roving made of glass fiber or metal fiber with a reinforcing effect such as steel fiber with a thermosetting resin liquid or a resin liquid mainly containing a thermosetting resin and a thermoplastic resin. It is constructed as a wire made by heating and hardening the resin, or as a single metal wire having a reinforcing effect, such as a single steel wire. In the case where the core wire is formed by roving, the resin forming the resin liquid with which the roving is impregnated may be epoxy resin, polyester resin, phenol resin, or a thermosetting resin that is a modified product thereof, or any of the above thermosetting resins. A resin obtained by mixing a curable resin with a thermoplastic resin such as acrylic resin, PVC, or polyamide can be suitably used.
又発泡性熱可塑性樹脂としては、例えば、発泡ポリ塩化
ビニル、発泡ポリスチレン、発泡ＡＢＳ、発泡ポリエチ
レン、発泡ポリプロピレン等を用いることができ、その
発泡倍率は合成樹脂発泡体と芯線とが一体化され、該発
泡体の熱伸縮、後収縮が阻止される程度、即ち約１．１
〜５倍程度、好ましくは２〜３倍に設定するのがよい。Further, as the foamable thermoplastic resin, for example, foamed polyvinyl chloride, foamed polystyrene, foamed ABS, foamed polyethylene, foamed polypropylene, etc. can be used, and the foaming ratio is such that the synthetic resin foam and the core wire are integrated, The extent to which thermal expansion/contraction and post-shrinkage of the foam is inhibited, that is, approximately 1.1
It is good to set the amount to about 5 times, preferably 2 to 3 times.
又芯線の表面部を被覆する発泡抑制剤は、発泡性熱可塑
性樹脂に含有されている発泡剤の分解を化学的に妨げる
等によって、芯線の周囲部分における発泡性熱可塑性樹
脂の発泡を積極的に抑制する作用を呈するものであり、
使用する熱可塑性樹脂に含有せしめられている発泡剤に
応じて所要の発泡抑制剤が選択される。又芯線の表面部
を発泡抑制剤で被覆する手段としては、芯線を金型内に
導入するに先立って、該芯線を、溶剤に発泡抑制剤を溶
かした液に浸漬する手段や、芯線に発泡抑制剤を吹付け
たり塗布したりする手段、さらには発泡抑制剤が混入さ
れている樹脂液をロービングに含浸させる手段等を挙げ
ることができる。なお芯線をスチール製単線等の金属製
単線を以て形成するばあいには、該芯線の表面部が通常
平滑上あって該芯線と発泡性熱可塑性樹脂との密着性が
良好でないことから、該芯線の周囲に一旦接着剤層を形
成した後該接着剤層の表面部を発泡抑制剤で被覆し、あ
るいは発泡抑制剤が混入されてなる接着剤で該芯線を被
覆するのがよい。なお、芯線周囲部分における発泡抑制
の状態は、発泡抑制剤の量を加減することによって、芯
線と合成樹脂発泡体とが密着一体化した状態となるよう
所望のものに制御されうる。In addition, the foaming inhibitor that coats the surface of the core wire actively inhibits the foaming of the foamable thermoplastic resin around the core wire by chemically preventing the decomposition of the foaming agent contained in the foaming thermoplastic resin. It has the effect of suppressing
The required foaming inhibitor is selected depending on the foaming agent contained in the thermoplastic resin used. The surface of the core wire may be coated with a foaming inhibitor by immersing the core wire in a solution containing a foaming inhibitor in a solvent before the core wire is introduced into the mold, or by coating the core wire with a foaming inhibitor. Examples include means for spraying or applying an inhibitor, and furthermore, means for impregnating the roving with a resin liquid mixed with a foaming inhibitor. Note that when the core wire is formed from a single metal wire such as a single steel wire, the surface of the core wire is usually smooth and the adhesion between the core wire and the foamable thermoplastic resin is not good. It is preferable to once form an adhesive layer around the core wire, and then coat the surface of the adhesive layer with a foaming inhibitor, or coat the core wire with an adhesive mixed with a foaming inhibitor. Note that the state of foaming suppression in the area around the core wire can be controlled to a desired state by adjusting the amount of foaming suppressant so that the core wire and the synthetic resin foam are tightly integrated.
（実施例） 以下本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第１図は、本発明の製造方法を実行するための装置の概
略を例示するものであり、１はクロスヘッドの押出成形
機、２は金型、３は成形用通路、４は引取装置である。FIG. 1 schematically illustrates an apparatus for carrying out the manufacturing method of the present invention, in which 1 is a crosshead extruder, 2 is a mold, 3 is a molding passage, and 4 is a take-off device. be.
然して本発明の製造方法は、芯線５の表面部６を、吹付
等の手段によって発泡抑制剤で被覆してなる被覆芯線７
（第２図参照、同図において８は被覆層を示す）を、
押出成形機１の金型２から押出される発泡性熱可塑性樹
脂内に連続して供給し、成形用通路３において発泡性熱
可塑性樹脂を発泡させ、芯線５で補強された合成樹脂発
泡体（以下補強発泡体という）９を製造する。なお、該
補強発泡体９ば、例えば第３図に示すごとき薄肉型材９
ａとして構成される。前記発泡性熱可塑性樹脂としては
、発泡ポリ塩化ビニルを用い、その発泡倍率は約２．５
倍程度に設定されている。芯線５は、比較的安価なガラ
ス繊維製ロービングに熱硬化性樹脂（例えばエポキシ変
性型樹脂液）を含浸させ、該樹脂を加熱し硬化させてな
る線材として構成されている。又芯線５の表面部を被覆
する発泡抑制剤としては、本実施例のばあい、次のもの
を好適に使用しうる。即ち、酸無水物系のものとしては
無水マレイン酸、無水フタル酸、無水トリメリット酸を
、又ヘンシトリアゾール系のものとしてはヘンヅｉ・リ
アゾール、クロルヘンヅトリアゾール、メチルヘンゾト
リアヅールを、さらに又含硫黄化合物系のものとしては
Ｚ−メルカプトヘンジチアゾールを挙げることができる
。製造された補強発泡体９においては、芯線５の周囲部
分１０はほとんど無発泡の状態にあり、該周囲部分１０
から外側に向かうにつれて徐々に発泡しており、これに
よって芯線５と合成樹脂発泡体１１とは強固に密着一体
化せしめられている。However, in the manufacturing method of the present invention, the coated core wire 7 is produced by coating the surface portion 6 of the core wire 5 with a foaming suppressant by means such as spraying.
(See Figure 2, 8 indicates the coating layer),
A synthetic resin foam ( (hereinafter referred to as reinforced foam) 9 is manufactured. Note that the reinforcing foam 9 is, for example, a thin profile material 9 as shown in FIG.
It is configured as a. As the foamable thermoplastic resin, foamed polyvinyl chloride is used, and its expansion ratio is about 2.5.
It is set to about twice that. The core wire 5 is constructed as a wire rod made by impregnating a relatively inexpensive glass fiber roving with a thermosetting resin (for example, an epoxy modified resin liquid) and heating and curing the resin. In addition, as the foaming suppressant for coating the surface portion of the core wire 5, in the case of this embodiment, the following can be suitably used. Namely, acid anhydride-based products include maleic anhydride, phthalic anhydride, and trimellitic anhydride, and henzytriazole-based products include henzui-riazole, chlorhenzotriazole, and methylhenzotriazole. Examples of sulfur-containing compounds include Z-mercaptohendithiazole. In the manufactured reinforced foam 9, the surrounding portion 10 of the core wire 5 is almost in an unfoamed state;
The core wire 5 and the synthetic resin foam 11 are tightly integrated with each other by being gradually foamed toward the outside.
（発明の効果）
本発明の製造方法は、表面部が発泡抑制剤で被覆されて
なる被覆芯線を、押出成形機の金型から押出される発泡
性熱可塑性樹脂内に連続して供給し、発泡抑制剤による
積極的な化学的発泡抑制作用により、芯線の周囲部分に
おける合成樹脂の発泡を抑制するとともに、該周囲部分
から外側に向かうにつれて徐々に発泡するようにしてい
るため、芯線と合成樹脂発泡体とが密着一体化して剛性
が大きいとともに寸法安定性に優れ、しかも軽量にして
断熱性も良好である長尺の補強発泡体を能率よく製造可
能とする。又、発泡抑制剤の選定やその使用量等の発泡
抑制条件の設定が容易であるため、芯線周囲部分におけ
る発泡抑制の状態を所望のものに確実に制御でき、従っ
て品質上のバラツキのない均一な補強発泡体を容易に製
造可能とする。(Effects of the Invention) The manufacturing method of the present invention includes continuously feeding a coated core wire whose surface portion is coated with a foaming inhibitor into a foamable thermoplastic resin extruded from a mold of an extrusion molding machine, The active chemical foaming suppressing effect of the foaming suppressant suppresses the foaming of the synthetic resin in the surrounding area of the core wire, and the foaming gradually moves outward from the surrounding area, so that the core wire and the synthetic resin are To efficiently manufacture a long reinforcing foam that is tightly integrated with a foam, has high rigidity and excellent dimensional stability, is lightweight, and has good heat insulation properties. In addition, since it is easy to select the foam suppressor and set the foam suppression conditions such as the amount used, it is possible to reliably control the foam suppression state in the area around the core wire to the desired level, thereby ensuring uniformity with no variation in quality. It is possible to easily manufacture a reinforcing foam body.
第１図は本発明の製造方法において用いる装置の概略を
示す平面図、第２図は被覆芯線を例示する部分斜視図、
第３図は補強発泡体を例示する斜視図、第４図は芯線周
囲部分における発泡抑制の状態を示す断面図である。
５・・・芯線、７・・・被覆芯線、９・・・補強発泡体
、１１・・・合成樹脂発泡体。FIG. 1 is a plan view schematically showing an apparatus used in the manufacturing method of the present invention, FIG. 2 is a partial perspective view illustrating a covered core wire,
FIG. 3 is a perspective view illustrating a reinforcing foam, and FIG. 4 is a sectional view showing a state in which foaming is suppressed around the core line. 5... Core wire, 7... Covered core wire, 9... Reinforced foam, 11... Synthetic resin foam.
Claims (1)
体を製造するに際し、芯線の表面部の全体を発泡抑制剤
で被覆してなる被覆芯線を、押出成形機の金型から押出
される発泡性熱可塑性樹脂内に連続して供給し、該発泡
抑制剤の発泡抑制作用によって、芯線の周囲部分におけ
る熱可塑性樹脂の発泡を抑制し、該周囲部分から外側に
向かうにつれて徐々に発泡するようになし、これによっ
て芯線と合成樹脂発泡体とを密着一体化することを特徴
とする、芯線で補強された合成樹脂発泡体の連続的製造
方法。When manufacturing a foamed elongated body made by embedding a reinforcing core wire in a synthetic resin foam, a coated core wire made by coating the entire surface of the core wire with a foaming inhibitor is extruded from a mold of an extrusion molding machine. The foaming inhibitor is continuously supplied into the foamable thermoplastic resin, and the foaming suppressing action of the foaming inhibitor suppresses the foaming of the thermoplastic resin in the surrounding area of the core wire, and gradually expands from the surrounding area outward. 1. A method for continuously producing a synthetic resin foam reinforced with a core wire, the method comprising the steps of: closely integrating the core wire and the synthetic resin foam;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62064698A JPS63230316A (en) | 1987-03-18 | 1987-03-18 | Continuous manufacture of synthetic resin foam reinforced with core wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62064698A JPS63230316A (en) | 1987-03-18 | 1987-03-18 | Continuous manufacture of synthetic resin foam reinforced with core wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63230316A true JPS63230316A (en) | 1988-09-26 |
| JPH0530369B2 JPH0530369B2 (en) | 1993-05-07 |
Family
ID=13265629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62064698A Granted JPS63230316A (en) | 1987-03-18 | 1987-03-18 | Continuous manufacture of synthetic resin foam reinforced with core wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63230316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285942A (en) * | 1991-09-25 | 1994-10-11 | Kurabo Ind Ltd | Reinforced extrusion molded object |
| US5622663A (en) * | 1995-06-14 | 1997-04-22 | Dow Corning Corporation | Method for preparing a continuous foam profile containing a filamentary core |
-
1987
- 1987-03-18 JP JP62064698A patent/JPS63230316A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285942A (en) * | 1991-09-25 | 1994-10-11 | Kurabo Ind Ltd | Reinforced extrusion molded object |
| US5622663A (en) * | 1995-06-14 | 1997-04-22 | Dow Corning Corporation | Method for preparing a continuous foam profile containing a filamentary core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530369B2 (en) | 1993-05-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |