JP2003266476A - Method for manufacturing skin-integrated resin molded product - Google Patents
Method for manufacturing skin-integrated resin molded productInfo
- Publication number
- JP2003266476A JP2003266476A JP2002072441A JP2002072441A JP2003266476A JP 2003266476 A JP2003266476 A JP 2003266476A JP 2002072441 A JP2002072441 A JP 2002072441A JP 2002072441 A JP2002072441 A JP 2002072441A JP 2003266476 A JP2003266476 A JP 2003266476A
- Authority
- JP
- Japan
- Prior art keywords
- skin layer
- skin
- molding space
- layer
- shape
- 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.)
- Pending
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表皮一体樹脂成形
品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a skin-integrated resin molded product.
【０００２】[0002]
【従来の技術】自動車のインパネ、バンパーや、単車の
カウル等のように発泡樹脂からなる表皮層とこの表皮層
を背面から支える芯層とからなる表皮一体樹脂成形品
は、特開昭６１−１３２３１４号公報に示されているよ
うに、表皮層となる１次成形品を予め別の金型で製造し
ておき、この１次成形品を金型に取り付け、１次成形品
と金型内壁面との間に形成されるキャビティ部に溶融樹
脂を充填冷却することで、成形品を得ていた。しかし、
上記従来の方法では、表皮層と芯層とを別々の製造工程
で成形したので、それぞれの部材を組み立てるために、
様々な工程や多くの異なる設備が必要で製造コストが嵩
むという問題があった。2. Description of the Related Art A skin-integrated resin molded article comprising a skin layer made of a foamed resin and a core layer supporting the skin layer from the back side, such as an automobile instrument panel, bumper, and motorcycle cowl, is disclosed in JP-A-61- As disclosed in Japanese Patent No. 132314, a primary molded product to be a skin layer is manufactured in advance in another mold, and this primary molded product is attached to the mold and the primary molded product and the inside of the mold. A molded product was obtained by filling and cooling a molten resin in a cavity formed between the wall surface and the cavity. But,
In the above-mentioned conventional method, since the skin layer and the core layer are molded in separate manufacturing steps, in order to assemble each member,
There is a problem that the manufacturing cost increases because various processes and many different equipments are required.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、以上のよう
な問題点に鑑みて、製造工程および設備が簡素化でき製
造コストを低減できる表皮一体樹脂成形品の製造方法を
提供することを目的としている。In view of the above problems, it is an object of the present invention to provide a method for manufacturing a skin-integrated resin molded product, which can simplify the manufacturing process and equipment and reduce the manufacturing cost. I am trying.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１に記載の表皮一体樹脂成形品の製
造方法（以下、「請求項１の製造方法」と記す）は、表
皮層とこの表皮層を支える芯層とからなる表皮一体樹脂
成形品の製造方法であって、型閉じ状態でキャビティ形
状を変化可能なキャビティ部を有する金型の、表皮層ま
たは芯層と略同じキャビティ形状にした第１成形空間
に、表皮層となる発泡剤を含む表皮層用熱可塑性樹脂組
成物および芯層となる芯層用熱可塑性樹脂組成物のうち
の第１成形空間に対応する樹脂組成物をまず射出し、第
１成形空間形状に成形硬化させて金型内に表面層または
芯層形状の１次成形品を作製したのち、キャビティ部を
拡大させることによって他方の層と略同じキャビティ形
状の第２成形空間を前記１次成形品と金型内壁面との間
に形成した状態で第２成形空間に他方の樹脂組成物を射
出して第２成形空間形状に成形硬化させることを特徴と
している。In order to achieve the above object, a method for producing a resin-in-skin integrated product according to claim 1 of the present invention (hereinafter referred to as "the production method of claim 1") is A method of manufacturing a skin-integrated resin-molded article comprising a skin layer and a core layer supporting the skin layer, comprising a mold having a cavity part capable of changing a cavity shape in a mold closed state, and substantially the same as the skin layer or the core layer. The first molding space having the same cavity shape corresponds to the first molding space of the thermoplastic resin composition for the skin layer containing the foaming agent to be the skin layer and the thermoplastic resin composition for the core layer to be the core layer. First, the resin composition is injected, and molded and cured into a first molding space shape to prepare a surface layer or core layer-shaped primary molded product in a mold, and then the cavity is enlarged to substantially separate the other layer. The second molding space of the same cavity shape Is characterized in that is hardened molded the other resin composition in the second molding space shape by injection into the second molding space while forming between the serial primary molded product and the mold wall.
【０００５】本発明の請求項２に記載の表皮一体樹脂成
形品の製造方法（以下、「請求項２の製造方法」と記
す）は、表皮層とこの表皮層を支える芯層とからなる表
皮一体樹脂成形品の製造方法であって、型閉じ状態でキ
ャビティ形状を変化可能なキャビティ部を有する金型
の、表皮層形状より大きいキャビティ形状にした第１成
形空間に、表皮層となる発泡剤を含む表皮層用熱可塑性
樹脂組成物をまず射出したのち、キャビティ形状を略表
皮層形状になるまで縮小させ、所定時間縮小した状態を
維持して略表皮層形状をした１次成形品を作製したの
ち、キャビティ部を拡大させることによって芯層と略同
じキャビティ形状の第２成形空間を前記１次成形品と金
型内壁面との間に形成し、この第２成形空間に芯層とな
る熱可塑性樹脂組成物を射出して第２成形空間形状に成
形硬化させることを特徴としている。A method for producing a resin-in-skin molded article according to claim 2 of the present invention (hereinafter referred to as "the production method of claim 2") is a skin comprising a skin layer and a core layer supporting the skin layer. A method of manufacturing an integrated resin molded product, wherein a foaming agent serving as a skin layer is provided in a first molding space having a cavity shape larger than that of a skin layer of a mold having a cavity portion capable of changing the cavity shape in a mold closed state. First, a thermoplastic resin composition for a skin layer containing is injected, and then the cavity shape is reduced to a substantially skin layer shape, and a primary molded article having a substantially skin layer shape is produced by maintaining the state of being reduced for a predetermined time. After that, by expanding the cavity portion, a second molding space having a cavity shape substantially the same as that of the core layer is formed between the primary molded product and the inner wall surface of the mold, and the core layer is formed in the second molding space. Thermoplastic resin composition It is characterized in that is molded cured second molding space shape out.
【０００６】本発明の請求項３に記載の表皮一体樹脂成
形品の製造方法（以下、「請求項３の製造方法」と記
す）は、表皮層とこの表皮層を支える芯層とからなる表
皮一体樹脂成形品の製造方法であって、型閉じ状態でキ
ャビティ形状を変化可能なキャビティ部を有する金型
の、表皮層形状より小さいキャビティ形状にした第１成
形空間に、表皮層となる発泡剤を含む表皮層用熱可塑性
樹脂組成物をまず射出したのち、樹脂が硬化する前にキ
ャビティ形状を略表皮層形状になるまで拡大させ、その
状態を維持して略表皮層形状をした１次成形品を作製
し、その後、キャビティ部をさらに拡大させることによ
って芯層と略同じキャビティ形状の第２成形空間を前記
１次成形品と金型内壁面との間に形成し、この第２成形
空間に芯層となる熱可塑性樹脂組成物を射出して第２成
形空間形状に成形硬化させることを特徴としている。A method for manufacturing a resin-in-skin molded article according to claim 3 of the present invention (hereinafter referred to as "manufacturing method of claim 3") is a skin comprising a skin layer and a core layer supporting the skin layer. A method of manufacturing an integrated resin molded article, comprising a foaming agent to be a skin layer in a first molding space having a cavity shape smaller than that of a skin layer of a mold having a cavity part capable of changing the cavity shape in a mold closed state. First, a thermoplastic resin composition for a skin layer containing is injected, then the cavity shape is expanded to a substantially skin layer shape before the resin is cured, and the state is maintained to form a substantially skin layer-shaped primary molding. A second molding space having substantially the same cavity shape as that of the core layer is formed between the primary molding and the inner wall surface of the mold by producing a product and then further enlarging the cavity portion. Thermoplastic core layer It is characterized in that to the molding cure the resin composition into the second molding space shape by injection.
【０００７】本発明の請求項４に記載の表皮一体樹脂成
形品の製造方法（以下、「請求項４の製造方法」と記
す）は、表皮層とこの表皮層を支える芯層とからなる表
皮一体樹脂成形品の製造方法であって、型閉じ状態でキ
ャビティ形状を変化可能なキャビティ部を有する金型
の、芯層形状と略同じキャビティ形状にした第１成形空
間に、芯層となる芯層用熱可塑性樹脂組成物をまず射出
し、略芯層形状の１次成形品を作製したのち、キャビテ
ィ部を拡大させることによって１次成形品と金型内壁面
との間に表皮層形状より小さい第２成形空間を形成し、
この第２成形空間に表皮層となる発泡剤を含む表皮層用
熱可塑性樹脂組成物を射出し、その後、樹脂が硬化する
前に２次成形空間を表皮層と略同じ大きさになるまで拡
大させ、表皮層用熱可塑性樹脂組成物を発泡硬化させる
ことを特徴としている。According to a fourth aspect of the present invention, there is provided a method for producing a skin-integrated resin molded article (hereinafter referred to as "the production method according to the fourth aspect"), which comprises a skin layer and a core layer supporting the skin layer. A method for manufacturing an integrated resin molded product, wherein a core to be a core layer is provided in a first molding space having a cavity shape substantially the same as the core layer shape of a mold having a cavity portion capable of changing the cavity shape in a mold closed state. The thermoplastic resin composition for layers is first injected to prepare a substantially core layer-shaped primary molded product, and then the cavity is enlarged to form a skin layer shape between the primary molded product and the inner wall surface of the mold. Forming a small second molding space,
A thermoplastic resin composition for a skin layer containing a foaming agent to be a skin layer is injected into the second molding space, and then the secondary molding space is expanded until the resin is hardened until the secondary molding space becomes substantially the same size as the skin layer. Then, the thermoplastic resin composition for a skin layer is foamed and cured.
【０００８】本発明の請求項５に記載の表皮一体樹脂成
形品の製造方法（以下、「請求項５の製造方法」と記
す）は、請求項１〜請求項４のいずれかの製造方法にお
いて、表皮層用熱可塑性樹脂組成物射出時のキャビティ
部の成形空間厚みが平均８ｍｍ以上であることを特徴と
している。The method for producing a skin-integrated resin molded article according to claim 5 of the present invention (hereinafter referred to as "the production method of claim 5") is the same as the production method of any one of claims 1 to 4. The molding space thickness of the cavity portion at the time of injection of the thermoplastic resin composition for the skin layer is 8 mm or more on average.
【０００９】本発明において、表皮層用および芯層用の
熱可塑性樹脂組成物に用いられる熱可塑性樹脂として
は、特に限定されないが、加熱融着可能な樹脂が好まし
く、例えば、ポリエチレン、ポリプロピレン、エチレン
−プロピレン共重合体、エチレン−プロピレン−ジエン
共重合体、エチレン−酢酸ビニル共重合体、ポリブテ
ン、塩素化ポリエチレン等のオレフイン系樹脂、ポリス
チレン、スチレン−ブタジエン−スチレン共重合体、ス
チレン−イソプレン−スチレン系樹脂、ポリメチルアク
リレート、エチレン−エチルアクリレート共重合体等の
アクリル樹脂、ポリ塩化ビニル等の塩素系樹脂、ポリフ
ッ化エチレン等のフッ素系樹脂、６−ナイロン、６６−
ナイロン、１２−ナイロン等のポリアミド樹脂、ポリエ
チレンテレフタレート、ポリブチレンテレフタレート等
のポリエステル樹脂、ＡＢＳ樹脂、ポリカーボネート、
ポリアセタール、ポリフェニレンサルファイド、ポリエ
ーテルエーテルケトン、ポリエーテルイミド、珪素樹
脂、熱可塑性ウレタン、各種エラストマー等の熱可塑性
樹脂があげられ、これらのうち、リサイクル性や焼却時
に有害ガスを発生しない等の理由からポリオレフィン系
樹脂、特に、ポリエチレンやポリプロピレンが好まし
い。In the present invention, the thermoplastic resin used in the thermoplastic resin composition for the skin layer and the core layer is not particularly limited, but a heat-fusible resin is preferable, and examples thereof include polyethylene, polypropylene and ethylene. -Propylene copolymer, ethylene-propylene-diene copolymer, ethylene-vinyl acetate copolymer, polybutene, olefin resin such as chlorinated polyethylene, polystyrene, styrene-butadiene-styrene copolymer, styrene-isoprene-styrene -Based resin, acrylic resin such as polymethyl acrylate and ethylene-ethyl acrylate copolymer, chlorine-based resin such as polyvinyl chloride, fluorine-based resin such as polyfluorinated ethylene, 6-nylon, 66-
Polyamide resin such as nylon and 12-nylon, polyester resin such as polyethylene terephthalate and polybutylene terephthalate, ABS resin, polycarbonate,
Thermoplastic resins such as polyacetal, polyphenylene sulfide, polyetheretherketone, polyetherimide, silicone resin, thermoplastic urethane, and various elastomers are listed. Among them, for recyclability and generation of harmful gas during incineration, etc. Polyolefin resins, especially polyethylene and polypropylene are preferred.
【００１０】上記の熱可塑性樹脂は、単体で用いても構
わないし、２種類以上用いて、アロイ状態、ブレンド状
態、コンポジット状態とされていても構わない。本発明
において、発泡剤は、特に限定されるものではなく、有
機および無機系の熱分解型化学発泡剤または物理発泡剤
が使用できる。The above thermoplastic resins may be used alone, or two or more kinds thereof may be used in an alloy state, a blend state or a composite state. In the present invention, the foaming agent is not particularly limited, and organic and inorganic thermal decomposition type chemical foaming agents or physical foaming agents can be used.
【００１１】化学発泡剤としては、アゾ化合物、ヒドラ
ジド化合物、ニトロソ化合物、セミカルバジド化合物、
ヒドラゾ化合物、テトラゾール化合物、エステル化合
物、重炭酸盤、炭酸塩、亜硝酸塩などが挙げられる。物
理発泡剤としては、炭酸ガス、チッソ、アルゴン、ネオ
ン、ヘリウム、酸素などの非反応性ガスが挙げられる。
これは単独で使用されても良いし、２種以上併用されて
も良い。As the chemical foaming agent, azo compounds, hydrazide compounds, nitroso compounds, semicarbazide compounds,
Examples thereof include hydrazo compounds, tetrazole compounds, ester compounds, bicarbonate plates, carbonates, and nitrites. Examples of the physical foaming agent include carbon dioxide, nitrogen, non-reactive gases such as argon, neon, helium and oxygen.
These may be used alone or in combination of two or more.
【００１２】また、表皮層熱可塑性樹脂組成物を金型内
に射出する際の射出速度は、例えば、２００ｍｍ／ｓｅ
ｃ程度の高速にすることが好ましい。すなわち、射出速
度を高速にすると、発泡剤の種類にもよるが、概ね溶融
樹脂中の気泡が径１００ミクロン以下の均一なものにな
り、均一な発泡状態とすることができる。The injection speed at the time of injecting the skin layer thermoplastic resin composition into the mold is, for example, 200 mm / se.
A high speed of about c is preferable. That is, when the injection speed is increased, the air bubbles in the molten resin become uniform with a diameter of 100 μm or less, depending on the type of the foaming agent, and a uniform foaming state can be obtained.
【００１３】なお、芯層用熱可塑性樹脂組成物には、発
泡剤が含有されていてもされていなくても構わないが、
表皮層用熱可塑性樹脂組成物と同じ種類の熱可塑性樹脂
を使用することが好ましい。すなわち、同じ表皮層およ
び芯層を同じ種類の熱可塑性樹脂で形成するようにすれ
ばリサイクルが容易になる。また、上記の熱可塑性樹脂
組成物中には、上記熱可塑性樹脂を主成分とするととも
に、副成分として充填材や顔料などを加えるようにして
も構わない。The core layer thermoplastic resin composition may or may not contain a foaming agent.
It is preferable to use the same kind of thermoplastic resin as the thermoplastic resin composition for the skin layer. That is, if the same skin layer and core layer are made of the same kind of thermoplastic resin, recycling becomes easy. In addition, the thermoplastic resin composition may contain the thermoplastic resin as a main component and a filler, a pigment or the like as a sub-component.
【００１４】請求項５の製造方法は、表皮層用熱可塑性
樹脂組成物射出時のキャビティ部の成形空間厚みが平均
８ｍｍ以上に限定されるが、その理由は、表皮層用熱可
塑性樹脂組成物射出時のキャビティ部の成形空間厚みが
平均８ｍｍ未満であると、表皮層の表面部分にスキン層
が形成され、表皮層がソフト感のある発泡樹脂層になら
ない恐れがあるためである。すなわち、キャビティ部の
成形空間厚みが平均８ｍｍ以上になると、成形空間内に
充填されても溶融状態の樹脂がすぐに金型壁面に接触し
ないため、硬いスキン層は生成されず、柔らかい表皮層
が生成される。発泡剤を含む表皮層用熱可塑性樹脂組成
物の射出条件による成形品物性に及ぼす影響について
は、以下のようである。
１ 一般に射出量に対し成形空間（キャビティ）が大き
いと発泡倍率の大きい、柔らかい発泡体が得られやす
い。
２ ガス発生剤を含まない樹脂の射出成形においては、
成形空間内を奥へと進入する樹脂により、金型壁面で固
化した樹脂が熱い中央部の噴出する樹脂により金型壁面
に押しつけられ、成形品の強固な外壁面つまりスキン層
が形成されると考えられている。ここで、発泡剤を含む
表皮層用熱可塑性樹脂組成物の射出成形においては、成
形空間が射出樹脂量にほぼ等しい場合、射出圧がほぼ維
持されるため、発泡できず、冷却によりそのまま固化さ
れることにより、成形品は樹脂の強度がそのまま維持さ
れる。一方、大きな成形空間に比較的少量の樹脂が射出
される場合には、発泡及びその発泡が成長しながらキャ
ビティ内を充満してゆくことになると推測される。した
がって、樹脂が金型壁面で冷却され金型壁面に沿うよう
にスキン層が形成されるが、キャビティと射出量の比及
び射出速度、金型の表面温度、ガス化圧力等のバランス
を適当に設定することによりスキン層が薄くソフトタッ
チの感触を有する成形品を得ることができる。
３ このためソフトな感触を有する表皮層を得るため、
つまりスキン層の薄い発泡体を成形するためには、大き
な成形空間に比較的少量の樹脂を射出することが好まし
い。また、発泡体のセルの大きさ、セルの形状は、樹脂
が熱く発泡圧力が高い状態の場合には、発泡しながら成
形空間内に充満してゆくことになるため、スライドブロ
ックを移動させて成形空間を拡大する等により制御しう
る。この場合、金型壁面で溶融樹脂が冷却固化し金型壁
面に沿ってスキン層が形成されるが、金型壁面温度が高
く、射出速度が速く、ガス化圧力が高い場合、溶融樹脂
により形成された発泡体は、金型壁面に押しつけられる
より、残存している成形空間に向かって成長しようと流
動方向に気泡が発生および成長しながらスキン層が成長
するために金型壁面から熱エネルギーを奪われることが
なく、スキン層は薄い状態に維持される。そのため、ソ
フトタッチの感触を有する成形品を得ることができる。
一方、芯層は強度を必要とするため発泡倍率は低い方が
好ましくこのため、発泡剤が発泡しにくいようキャビテ
ィが射出樹脂量にほぼ等しい状態で射出される。
４ 表皮層と芯層とは少なくとも一方が溶融状態で押し
つけられるため、熱接着により強固な結合が得られ積層
体として強化なものとなる。
５ 表皮層用樹脂組成物と、芯層用樹脂組成物とを一の
成形機より供給する場合、表皮層と芯層において金型へ
の供給原料を変えることなく、金型キャビティと射出量
の関係等にて発泡の程度を表皮層と芯層で変えることが
でき、表皮層と芯層とが強固な一体積層体を得る上で特
に好ましく作用する。In the manufacturing method of claim 5, the thickness of the molding space of the cavity portion at the time of injection of the thermoplastic resin composition for the skin layer is limited to an average of 8 mm or more. The reason is that the thermoplastic resin composition for the skin layer is used. This is because if the molding space thickness of the cavity portion at the time of injection is less than 8 mm on average, a skin layer is formed on the surface portion of the skin layer, and the skin layer may not become a soft foamed resin layer. That is, when the thickness of the molding space in the cavity is 8 mm or more on average, the molten resin does not immediately contact the mold wall surface even when filled in the molding space, so that a hard skin layer is not generated and a soft skin layer is formed. Is generated. The influence of the injection conditions of the thermoplastic resin composition for the skin layer containing the foaming agent on the physical properties of the molded article is as follows. 1 Generally, if the molding space (cavity) is large with respect to the injection amount, a soft foam having a large expansion ratio is easily obtained. 2 In injection molding of resin that does not contain gas generating agent,
When the resin that penetrates deep inside the molding space causes the resin that has solidified on the mold wall surface to be pressed against the mold wall surface by the hot central resin, which forms a strong outer wall surface of the molded product, that is, a skin layer. It is considered. Here, in the injection molding of the thermoplastic resin composition for the skin layer containing the foaming agent, when the molding space is almost equal to the injection resin amount, the injection pressure is almost maintained, so that the foaming is not possible and the resin is solidified as it is by cooling. As a result, the strength of the resin in the molded product is maintained as it is. On the other hand, when a relatively small amount of resin is injected into a large molding space, it is presumed that foaming and the foaming will fill the inside of the cavity while growing. Therefore, the resin is cooled on the wall surface of the mold, and the skin layer is formed along the wall surface of the mold, but the ratio of the cavity and the injection amount and the injection speed, the surface temperature of the mold, the gasification pressure, etc. are properly balanced. By setting it, a molded product having a thin skin layer and a soft touch feeling can be obtained. 3 Therefore, to obtain a skin layer having a soft feel,
That is, in order to mold a foam having a thin skin layer, it is preferable to inject a relatively small amount of resin into a large molding space. Also, when the resin is hot and the foaming pressure is high, the cell size of the foam and the cell shape will fill the molding space while foaming. It can be controlled by expanding the molding space. In this case, the molten resin is cooled and solidified on the wall surface of the mold to form a skin layer along the wall surface of the mold, but when the temperature of the wall surface of the mold is high, the injection speed is high, and the gasification pressure is high, it is formed by the molten resin. Rather than being pressed against the wall surface of the mold, the foamed body generates thermal energy from the wall surface of the mold because the skin layer grows while bubbles are generated and grow in the flow direction to grow toward the remaining molding space. It is not stripped and the skin layer remains thin. Therefore, a molded product having a soft touch feeling can be obtained.
On the other hand, since the core layer needs strength, it is preferable that the expansion ratio is low. Therefore, the cavity is injected in a state substantially equal to the injection resin amount so that the foaming agent is less likely to foam. 4 At least one of the skin layer and the core layer is pressed in a molten state, so that a strong bond can be obtained by heat bonding, and the laminate can be strengthened. 5 When the resin composition for the skin layer and the resin composition for the core layer are supplied from a single molding machine, the mold cavity and the injection amount can be adjusted without changing the raw materials supplied to the mold in the skin layer and the core layer. The degree of foaming can be changed between the skin layer and the core layer due to the relationship and the like, which is particularly preferable in obtaining an integral laminate in which the skin layer and the core layer are strong.
【００１５】[0015]
【発明の実施の形態】以下に、本発明を、その実施の形
態をあらわす図面を参照しつつ詳しく説明する。ただ
し、本発明は、図示の実施形態に限定されるものではな
く、本発明の主旨に逸脱しない範囲の設計変更を含むも
のである。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments thereof. However, the present invention is not limited to the illustrated embodiments, and includes design changes within a range not departing from the gist of the present invention.
【００１６】図１は、本発明の表皮一体樹脂成形品の製
造方法の第１の実施の形態を、その工程順にあらわして
いる。図１（ａ）に示すように、この製造方法は、可動
型１１側にスライドブロック１３が設けられ、スライド
ブロック１３が型閉じ状態で金型１内で固定型１２方向
に進退することによって、キャビティ形状を変化させる
ことが可能なキャビティ部を有する金型１を型閉じ状態
とするとともに、まず、スライドブロック１３をスライ
ドさせてその厚さが平均で８ｍｍ以上の表皮層と略同じ
キャビティ形状の第１成形空間１４を金型１内に形成す
る。FIG. 1 shows a first embodiment of a method for manufacturing a skin-integrated resin molded product according to the present invention in the order of steps thereof. As shown in FIG. 1A, in this manufacturing method, a slide block 13 is provided on the movable die 11 side, and when the slide block 13 is in the mold closed state, the slide block 13 moves back and forth in the fixed die 12 direction in the die 1. The mold 1 having a cavity part capable of changing the cavity shape is closed, and first, the slide block 13 is slid to have a cavity shape having an average thickness of 8 mm or more and that of the skin layer. The first molding space 14 is formed in the mold 1.
【００１７】つぎに、この第１成形空間１４に、図１
（ｂ）に示すように、表皮層となる発泡剤を含む表皮層
用熱可塑性樹脂組成物Ｐ１をまず射出し、第１成形空間
形状に成形硬化させて金型１内に表面層形状の１次成形
品３１を作製する。その後、図１（ｃ）に示すように、
型閉じ状態を保ったままスライドブロック１３を可動型
１１方向（固定型１２から離れる方向）にスライドさせ
てキャビティ部を拡大させることによって芯層と略同じ
キャビティ形状の第２成形空間１５を１次成形品３１と
金型内壁面との間に形成する。Next, in the first molding space 14, as shown in FIG.
As shown in (b), the skin layer thermoplastic resin composition P1 containing a foaming agent to be the skin layer is first injected and molded and cured into the first molding space shape to form the surface layer shape 1 in the mold 1. Next molded article 31 is produced. Then, as shown in FIG.
While maintaining the mold closed state, the slide block 13 is slid in the direction of the movable mold 11 (away from the fixed mold 12) to enlarge the cavity portion, so that the second molding space 15 having a cavity shape substantially the same as the core layer is formed. It is formed between the molded product 31 and the inner wall surface of the mold.
【００１８】そして、図１（ｄ）に示すように、第２成
形空間１５に芯層用熱可塑性樹脂組成物Ｐ２を射出して
第２成形空間形状に成形硬化さて芯層４２を形成し、表
皮層４１と芯層４２とが一体成形された表皮一体樹脂成
形品４を得ることができる。Then, as shown in FIG. 1 (d), the core layer thermoplastic resin composition P2 is injected into the second molding space 15 and molded and cured into the second molding space shape to form the core layer 42. It is possible to obtain the skin-integrated resin molded product 4 in which the skin layer 41 and the core layer 42 are integrally molded.
【００１９】この製造方法は、以上のように、まず金型
１内で表皮層となる１次成形品３１を成形した後、同じ
金型１内で型閉じ状態でスライドブロック１３をスライ
ドさせて形成された第２成形空間１５に芯層用熱可塑性
樹脂を射出して表皮層４１と芯層４２とが一体成形され
た表皮一体樹脂成形品４を製造するようになっているの
で、１つの金型１を用い少ない工程で表皮一体化樹脂成
形品４を得ることができる。即ち、従来の製造方法に比
べて製造コストを低減できる。As described above, according to this manufacturing method, first, the primary molded product 31 which becomes the skin layer is formed in the mold 1, and then the slide block 13 is slid in the same mold 1 in a mold closed state. The thermoplastic resin for the core layer is injected into the formed second molding space 15 to manufacture the skin-integrated resin molded product 4 in which the skin layer 41 and the core layer 42 are integrally molded. The skin-integrated resin molded product 4 can be obtained in a small number of steps using the mold 1. That is, the manufacturing cost can be reduced as compared with the conventional manufacturing method.
【００２０】しかも、表皮層用熱可塑性樹脂Ｐ１射出時
の第１成形空間１４の厚さが８ｍｍ以上であるので、ス
キン層のあまり形成されず、緩衝性やシボのある柔らか
い表皮層４１とすることができる。Moreover, since the thickness of the first molding space 14 at the time of injection of the thermoplastic resin P1 for the skin layer is 8 mm or more, the skin layer is not formed so much, and the soft skin layer 41 having the cushioning property and the texture is obtained. be able to.
【００２１】図２は、本発明の表皮一体樹脂成形品の製
造方法の第２の実施の形態を、その工程順にあらわして
いる。この製造方法は、図２（ａ）に示すように、上記
の金型１を型閉じ状態とするとともに、まず、スライド
ブロック１３をスライドさせてその厚さが平均で８ｍｍ
以上の表皮層より大きいキャビティ形状の第１成形空間
１６を金型１内に形成する。FIG. 2 shows a second embodiment of a method for manufacturing a resin product with integral skin according to the present invention in the order of steps. In this manufacturing method, as shown in FIG. 2A, the mold 1 is closed and the slide block 13 is first slid to have an average thickness of 8 mm.
A cavity-shaped first molding space 16 larger than the above skin layer is formed in the mold 1.
【００２２】つぎに、この第１成形空間１６に、表皮層
となる発泡剤を含む表皮層用熱可塑性樹脂組成物Ｐ１を
まず射出したのち、図２（ｂ）に示すように、スライド
ブロック１３を固定型１２方向にスライドさせてキャビ
ティ形状を略表皮層形状になるまで縮小させ、所定時間
縮小した状態を維持して略表皮層形状をした１次成形品
３２を作製する。そして、図２（ｃ）に示すように、ス
ライドブロック１３を可動型１１方向にスライドさせて
芯層と略同じキャビティ形状の第２成形空間１７を前記
１次成形品３２と金型内壁面との間に形成した状態で図
２（ｄ）に示すように、第２成形空間１７に芯層となる
芯層用熱可塑性樹脂組成物Ｐ２を射出して第２成形空間
形状に成形硬化させ、表皮層５１と芯層５２とが一体成
形された表皮一体樹脂成形品５を製造するようになって
いる。Next, the skin layer thermoplastic resin composition P1 containing a foaming agent to be the skin layer is first injected into the first molding space 16, and then the slide block 13 as shown in FIG. 2 (b). Is slid in the direction of the fixed mold 12 to reduce the cavity shape until it becomes a substantially skin layer shape, and while maintaining the state of being reduced for a predetermined time, a substantially skin layer-shaped primary molded product 32 is produced. Then, as shown in FIG. 2 (c), the slide block 13 is slid toward the movable mold 11 to form the second molding space 17 having a cavity shape substantially the same as that of the core layer between the primary molding 32 and the inner wall surface of the mold. As shown in FIG. 2 (d), the core layer thermoplastic resin composition P2 to be the core layer is injected into the second molding space 17 to be molded and cured into the second molding space shape. The skin-integrated resin molded product 5 in which the skin layer 51 and the core layer 52 are integrally molded is manufactured.
【００２３】この製造方法は、以上のように、一旦広い
空間に発泡剤を含む表皮層用熱可塑性樹脂Ｐ１が射出さ
れるので、溶融状態の樹脂がすぐに金型壁面に接触しな
い。そしてその後、キャビティ部を縮小させて表皮層と
なる１次成形品３２を成形するようになっているので、
表皮層５１の薄い成形品であっても、ソフト感に富んだ
表皮一体樹脂成形品５を得ることができる。そして、表
皮層５１の固定型１２に接している側はスキン層が薄く
発泡倍率を大きくできるのでソフトな感触が得られかつ
表皮層５１の可動型側は強度の大きいものとすることが
できる。In this manufacturing method, since the thermoplastic resin P1 for the skin layer containing the foaming agent is once injected into the wide space as described above, the molten resin does not immediately contact the mold wall surface. Then, after that, the cavity is reduced to mold the primary molded product 32 to be the skin layer.
Even if the molded product having the thin skin layer 51 is used, it is possible to obtain the molded resin product 5 integrated with the skin having a soft feeling. Since the skin layer on the side of the skin layer 51 in contact with the fixed mold 12 is thin and the expansion ratio can be increased, a soft feeling can be obtained, and the movable side of the skin layer 51 can have a high strength.
【００２４】図３は、本発明の表皮一体樹脂成形品の製
造方法の第３の実施の形態を、その工程順にあらわして
いる。この製造方法は、図３（ａ）に示すように、上記
の金型１を型閉じ状態とするとともに、まず、スライド
ブロック１３をスライドさせてその厚さが平均で８ｍｍ
以上で表皮層より小さいキャビティ形状の第１成形空間
１８を金型１内に形成する。FIG. 3 shows a third embodiment of the method for manufacturing a resin-molded product integrated with a skin according to the present invention in the order of the steps. In this manufacturing method, as shown in FIG. 3A, the mold 1 is closed, and first, the slide block 13 is slid to have an average thickness of 8 mm.
As described above, the cavity-shaped first molding space 18 smaller than the skin layer is formed in the mold 1.
【００２５】つぎに、この第１成形空間１８に、表皮層
となる発泡剤を含む表皮層用熱可塑性樹脂組成物Ｐ１を
まず射出したのち、樹脂が硬化する前に、図３（ｂ）に
示すように、スライドブロック１３を可動型１１方向に
スライドさせてキャビティ形状を略表皮層形状になるま
で拡大させ、所定時間拡大した状態を維持して略表皮層
形状をした１次成形品３３を作製する。そして、図３
（ｃ）に示すように、スライドブロック１３を可動型１
１方向にさらにスライドさせて芯層と略同じキャビティ
形状の第２成形空間１９を前記１次成形品３３と金型内
壁面との間に形成した状態で，図３（ｄ）に示すよう
に、第２成形空間１９に芯層となる芯層用熱可塑性樹脂
組成物Ｐ２を射出して第２成形空間形状に成形硬化さ
せ、表皮層６１と芯層６２とが一体成形された表皮一体
樹脂成形品６を製造するようになっている。Next, the thermoplastic resin composition P1 for the skin layer containing a foaming agent to be the skin layer is first injected into the first molding space 18, and before the resin is hardened, as shown in FIG. 3 (b). As shown, the slide block 13 is slid toward the movable mold 11 to expand the cavity shape to a substantially skin layer shape, and the expanded state is maintained for a predetermined time to maintain the substantially skin layer-shaped primary molded product 33. Create. And FIG.
As shown in (c), the slide block 13 is attached to the movable mold 1
As shown in FIG. 3D, the second molding space 19 having the same cavity shape as the core layer is further slid in one direction to form between the primary molding 33 and the inner wall surface of the mold. A skin layer-integrated resin in which the skin layer 61 and the core layer 62 are integrally molded by injecting the core layer thermoplastic resin composition P2 to be the core layer into the second molding space 19 and molding and curing into the second molding space shape. A molded product 6 is manufactured.
【００２６】この製造方法によれば、表皮層用熱可塑性
樹脂Ｐ１を金型１内に射出時の第１成形空間１８が平均
で８ｍｍ以上の厚さであるので、溶融状態の樹脂がすぐ
に金型壁面に接触しない。したがって、スキン層が表面
に形成されにくい。そして、その後樹脂が硬化する前に
成形空間をさらに拡大し、樹脂組成物をさらに発泡させ
て表皮層となる１次成形品３３を金型１内で成形するよ
うにしたので、得られる１次成形品３３は、その表面の
凹凸を大きものとなる。したがって、表皮層６１の緩衝
性に優れた表皮一体樹脂成形品６を製造できるようにな
る。しかも、表皮層の発泡体のセルの形状、大きさの制
御がしやすく、ソフトな感触の積層体の製造する上で制
御が容易であるという効果もある。According to this manufacturing method, since the first molding space 18 at the time of injection of the skin layer thermoplastic resin P1 into the mold 1 has an average thickness of 8 mm or more, the molten resin immediately Do not touch the mold wall. Therefore, the skin layer is unlikely to be formed on the surface. Then, before the resin is cured, the molding space is further expanded, the resin composition is further foamed, and the primary molded product 33 to be the skin layer is molded in the mold 1. The molded product 33 has large irregularities on its surface. Therefore, it becomes possible to manufacture the skin-integrated resin molded product 6 in which the skin layer 61 has excellent cushioning properties. In addition, it is easy to control the shape and size of the cells of the foam of the skin layer, and it is easy to control the production of the laminate having a soft feeling.
【００２７】[0027]
【発明の効果】本発明にかかる表皮一体樹脂成形品の製
造方法は、以上のように構成されているので、緩衝性を
有する発泡樹脂からなる表皮層と、この表皮層を支える
芯層とを１つの金型を用いて一体成形することができ
る。したがって、従来に比べ作業工程が簡略化できると
ともに、設備コストも少なくて済み製造コストが低減で
きる。キャビティの縮小する量や拡大する量を制御する
ことで、表皮の発泡密度が自由に制御可能であるため緩
衝性などを任意にチューニングする事ができる。また、
表面の凹凸形状も任意に制御可能である。 そして、請
求項２の製造方法のようにすれば、表皮層のソフト感を
損なうことなく、表皮層表面が滑らかな成形品を得るこ
とができる。EFFECTS OF THE INVENTION Since the method for producing a resin-in-skin molded article according to the present invention is configured as described above, it comprises a skin layer made of foamed resin having a buffering property and a core layer supporting the skin layer. It can be integrally molded using one die. Therefore, the work process can be simplified as compared with the conventional method, and the facility cost can be reduced and the manufacturing cost can be reduced. By controlling the amount of shrinkage and the amount of expansion of the cavity, the foaming density of the epidermis can be freely controlled, so that the cushioning property can be tuned arbitrarily. Also,
The uneven shape of the surface can also be controlled arbitrarily. According to the manufacturing method of the second aspect, it is possible to obtain a molded article having a smooth surface layer surface without impairing the soft feeling of the surface layer.
【００２８】請求項３および請求項４の製造方法のよう
にすれば、表皮表面の凹凸が層に関しては、表皮層の緩
衝性がさらに向上し、表皮層表面の凹凸を大きい成形品
をえることができる。According to the manufacturing method of claims 3 and 4, regarding the layer having unevenness on the surface of the skin, the cushioning property of the surface layer is further improved, and a molded product having large unevenness on the surface of the surface skin is obtained. You can
【００２９】請求項５の製造方法のようにすれば、キャ
ビティの隙間を大きくすることにより溶融樹脂のキャビ
ティヘの充填速度が低速でも、硬いスキン層を生成する
ことなく、表皮にシボ形状や均一な緩衝性を付与するこ
とが可能になる。キャビティの縮小する量や拡大する量
を制御することで、表皮の発泡密度が自由に制御可能で
あるため緩衝性などを任意にチューニングする事ができ
る。また、表面の凹凸形状も任意に制御可能である。According to the manufacturing method of the fifth aspect, by increasing the gap between the cavities, even if the filling rate of the molten resin into the cavities is low, a hard skin layer is not formed, and the surface of the skin has a textured shape or a uniform texture. It is possible to add a good buffering property. By controlling the amount of shrinkage and the amount of expansion of the cavity, the foaming density of the epidermis can be freely controlled, so that the cushioning property can be tuned arbitrarily. Further, the uneven shape of the surface can be controlled arbitrarily.
【図１】本発明にかかる表皮一体樹脂成形品の製造方法
の第１の実施の形態を工程順に説明する説明図である。FIG. 1 is an explanatory view for explaining a first embodiment of a method for manufacturing a skin-integrated resin molded product according to the present invention in the order of steps.
【図２】本発明にかかる表皮一体樹脂成形品の製造方法
の第２の実施の形態を工程順に説明する説明図である。FIG. 2 is an explanatory view for explaining a second embodiment of a method for manufacturing a resin-in-skin integrated product according to the present invention in the order of steps.
【図３】本発明にかかる表皮一体樹脂成形品の製造方法
の第１の実施の形態を工程順に説明する説明図である。FIG. 3 is an explanatory diagram for explaining the first embodiment of the method for manufacturing a resin product with integral skin according to the present invention in the order of steps.
【符号の説明】 Ｐ１ 表皮層用熱可塑性樹脂組成物 Ｐ２ 芯層用熱可塑性樹脂組成物 １ 金型 ４，５，６ 表皮一体樹脂成形品 ４１，５１，６１ 表皮層 ４２，５２，６２ 芯層 １４，１６，１８ 第１成形空間 １５，１７，１９ 第２成形空間 ３１，３２，３３ １次成形品[Explanation of symbols] P1 skin layer thermoplastic resin composition P2 core layer thermoplastic resin composition 1 mold 4, 5, 6 Skin integrated resin molded product 41,51,61 Skin layer 42, 52, 62 core layer 14, 16, 18 First molding space 15, 17, 19 Second molding space 31, 32, 33 Primary molded products
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｌ 9:00 Ｂ２９Ｌ 9:00 Ｆターム(参考） 4F202 AB02 AD08 AG03 AG20 CA11 CB01 CB12 CB28 CK17 CK42 CK52 CQ05 4F206 AB02 AD11 AD17 AG03 AG20 AH24 AH25 AR07 AR12 JA03 JA04 JA07 JB24 JF04 JL02 JM04 JN12 JN25 JN33 JQ02 JQ81 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI theme code (reference) B29L 9:00 B29L 9:00 F term (reference) 4F202 AB02 AD08 AG03 AG20 CA11 CB01 CB12 CB28 CK17 CK42 CK52 CQ05 4F206 AB02 AD11 AD17 AG03 AG20 AH24 AH25 AR07 AR12 JA03 JA04 JA07 JB24 JF04 JL02 JM04 JN12 JN25 JN33 JQ02 JQ81
Claims (5)
る表皮一体樹脂成形品の製造方法であって、型閉じ状態
でキャビティ形状を変化可能なキャビティ部を有する金
型の、表皮層または芯層と略同じキャビティ形状にした
第１成形空間に、表皮層となる発泡剤を含む表皮層用熱
可塑性樹脂組成物および芯層となる芯層用熱可塑性樹脂
組成物のうちの第１成形空間に対応する樹脂組成物をま
ず射出し、第１成形空間形状に成形硬化させて金型内に
表面層または芯層形状の１次成形品を作製したのち、キ
ャビティ部を拡大させることによって他方の層と略同じ
キャビティ形状の第２成形空間を前記１次成形品と金型
内壁面との間に形成した状態で第２成形空間に他方の樹
脂組成物を射出して第２成形空間形状に成形硬化させる
ことを特徴とする表皮一体樹脂成形品の製造方法。1. A method of manufacturing a skin-integrated resin molded article comprising a skin layer and a core layer supporting the skin layer, the skin layer of a mold having a cavity portion capable of changing a cavity shape in a mold closed state. Alternatively, in the first molding space having a cavity shape substantially the same as that of the core layer, the first thermoplastic resin composition for the skin layer containing the foaming agent to be the skin layer and the thermoplastic resin composition for the core layer to be the core layer By injecting the resin composition corresponding to the molding space first, and molding and curing it into the shape of the first molding space to prepare a surface layer or core layer-shaped primary molded article in the mold, and then expanding the cavity portion. A second molding space is formed by injecting the other resin composition into the second molding space in a state where a second molding space having substantially the same cavity shape as the other layer is formed between the primary molded product and the inner wall surface of the mold. Characterized by molding and hardening into a shape Method of manufacturing a skin integral resin molded article.
る表皮一体樹脂成形品の製造方法であって、型閉じ状態
でキャビティ形状を変化可能なキャビティ部を有する金
型の、表皮層形状より大きいキャビティ形状にした第１
成形空間に、表皮層となる発泡剤を含む表皮層用熱可塑
性樹脂組成物をまず射出したのち、キャビティ形状を略
表皮層形状になるまで縮小させ、所定時間縮小した状態
を維持して略表皮層形状をした１次成形品を作製したの
ち、キャビティ部を拡大させることによって芯層と略同
じキャビティ形状の第２成形空間を前記１次成形品と金
型内壁面との間に形成し、この第２成形空間に芯層とな
る熱可塑性樹脂組成物を射出して第２成形空間形状に成
形硬化させることを特徴とする表皮一体樹脂成形品の製
造方法。2. A method of manufacturing a skin-integrated resin molded product comprising a skin layer and a core layer supporting the skin layer, the skin layer of a mold having a cavity part capable of changing the cavity shape in a mold closed state. First with a cavity shape larger than the shape
A thermoplastic resin composition for a skin layer containing a foaming agent to be a skin layer is first injected into a molding space, and then the cavity shape is reduced to a substantially skin layer shape, and the reduced state is maintained for a predetermined time to generate a substantially skin layer. After producing a layered primary molded product, a cavity is enlarged to form a second molding space having a cavity shape substantially the same as that of the core layer, between the primary molded product and the mold inner wall surface. A method for producing a skin-integrated resin molded article, comprising injecting a thermoplastic resin composition to be a core layer into the second molding space and molding and curing the core resin into a second molding space shape.
る表皮一体樹脂成形品の製造方法であって、型閉じ状態
でキャビティ形状を変化可能なキャビティ部を有する金
型の、表皮層形状より小さいキャビティ形状にした第１
成形空間に、表皮層となる発泡剤を含む表皮層用熱可塑
性樹脂組成物をまず射出したのち、樹脂が硬化する前に
キャビティ形状を略表皮層形状になるまで拡大させ、そ
の状態を維持して略表皮層形状をした１次成形品を作製
し、その後、キャビティ部をさらに拡大させることによ
って芯層と略同じキャビティ形状の第２成形空間を前記
１次成形品と金型内壁面との間に形成し、この第２成形
空間に芯層となる熱可塑性樹脂組成物を射出して第２成
形空間形状に成形硬化させることを特徴とする表皮一体
樹脂成形品の製造方法。3. A method for producing a skin-integrated resin molded article comprising a skin layer and a core layer supporting the skin layer, the skin layer of a mold having a cavity part capable of changing the cavity shape in a mold closed state. The first with a cavity shape smaller than the shape
A thermoplastic resin composition for a skin layer containing a foaming agent to be a skin layer is first injected into a molding space, and then the cavity shape is expanded to a substantially skin layer shape before the resin is cured, and the state is maintained. To produce a primary molded product having a substantially skin layer shape, and then further enlarging the cavity to form a second molding space having a cavity shape substantially the same as that of the core layer between the primary molded product and the mold inner wall surface. A method for producing a skin-integrated resin-molded article, characterized in that the thermoplastic resin composition, which is formed between the two molding spaces and serves as a core layer, is injected and molded and cured into the shape of the second molding space.
る表皮一体樹脂成形品の製造方法であって、型閉じ状態
でキャビティ形状を変化可能なキャビティ部を有する金
型の、芯層形状と略同じキャビティ形状にした第１成形
空間に、芯層となる芯層用熱可塑性樹脂組成物をまず射
出し、略芯層形状の１次成形品を作製したのち、キャビ
ティ部を拡大させることによって１次成形品と金型内壁
面との間に表皮層形状より小さい第２成形空間を形成
し、この第２成形空間に表皮層となる発泡剤を含む表皮
層用熱可塑性樹脂組成物を射出し、その後、樹脂が硬化
する前に２次成形空間を表皮層と略同じ大きさになるま
で拡大させ、表皮層用熱可塑性樹脂組成物を発泡硬化さ
せることを特徴とする表皮一体樹脂成形品の製造方法。4. A method of manufacturing a skin-integrated resin molded product comprising a skin layer and a core layer supporting the skin layer, the core layer of a mold having a cavity part capable of changing a cavity shape in a mold closed state. A thermoplastic resin composition for a core layer, which is a core layer, is first injected into a first molding space having a cavity shape substantially the same as that of the cavity to prepare a substantially core layer-shaped primary molded product, and then the cavity portion is enlarged. As a result, a second molding space smaller than the skin layer shape is formed between the primary molded product and the inner wall surface of the mold, and the thermoplastic resin composition for the skin layer containing a foaming agent to be the skin layer in the second molding space. Is injected, and then the secondary molding space is expanded to have substantially the same size as the skin layer before the resin is cured, and the thermoplastic resin composition for the skin layer is foamed and cured, and a skin-integrated resin. Molded article manufacturing method.
ビティ部の成形空間厚みが平均８ｍｍ以上である請求項
１〜請求項４のいずれか１項に記載の表皮一体樹脂成形
品の製造方法。5. A skin-integrated resin molded article according to any one of claims 1 to 4, wherein a molding space thickness of a cavity portion when the thermoplastic resin composition for a skin layer is injected is 8 mm or more on average. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002072441A JP2003266476A (en) | 2002-03-15 | 2002-03-15 | Method for manufacturing skin-integrated resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002072441A JP2003266476A (en) | 2002-03-15 | 2002-03-15 | Method for manufacturing skin-integrated resin molded product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003266476A true JP2003266476A (en) | 2003-09-24 |
Family
ID=29202440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002072441A Pending JP2003266476A (en) | 2002-03-15 | 2002-03-15 | Method for manufacturing skin-integrated resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003266476A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419320A (en) * | 2004-10-20 | 2006-04-26 | Lear Corp | Moulding an automotive trim assembly with an integrated airbag door |
| JP2006281698A (en) * | 2005-04-04 | 2006-10-19 | Ube Machinery Corporation Ltd | Shaping method for foamed molded product, and shaping device for foamed molded product |
| JP2008290389A (en) * | 2007-05-25 | 2008-12-04 | Basf Se | Injection molding method for manufacturing completely reusable multilayered article |
| JP2009190357A (en) * | 2008-02-18 | 2009-08-27 | Daikyonishikawa Corp | Panel with outer skin made of foam resin, and its molding method |
| JP2013512795A (en) * | 2009-12-04 | 2013-04-18 | シーカ・テクノロジー・アーゲー | Reverse molding of baffle or reinforcement |
| JP2015033849A (en) * | 2013-07-08 | 2015-02-19 | 積水テクノ成型株式会社 | Thermoplastic resin foam molded body, and method of manufacturing the same |
| JP2016525029A (en) * | 2013-07-11 | 2016-08-22 | サフラン | Coating of turbine engine parts by over injection |
| WO2019189631A1 (en) * | 2018-03-30 | 2019-10-03 | 東レ株式会社 | Molded article and production method therefor |
-
2002
- 2002-03-15 JP JP2002072441A patent/JP2003266476A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2419320A (en) * | 2004-10-20 | 2006-04-26 | Lear Corp | Moulding an automotive trim assembly with an integrated airbag door |
| GB2419320B (en) * | 2004-10-20 | 2008-12-10 | Lear Corp | Method of making an automotive trim assembly having an integrated airbag door |
| JP2006281698A (en) * | 2005-04-04 | 2006-10-19 | Ube Machinery Corporation Ltd | Shaping method for foamed molded product, and shaping device for foamed molded product |
| JP2008290389A (en) * | 2007-05-25 | 2008-12-04 | Basf Se | Injection molding method for manufacturing completely reusable multilayered article |
| JP2009190357A (en) * | 2008-02-18 | 2009-08-27 | Daikyonishikawa Corp | Panel with outer skin made of foam resin, and its molding method |
| JP2013512795A (en) * | 2009-12-04 | 2013-04-18 | シーカ・テクノロジー・アーゲー | Reverse molding of baffle or reinforcement |
| JP2015033849A (en) * | 2013-07-08 | 2015-02-19 | 積水テクノ成型株式会社 | Thermoplastic resin foam molded body, and method of manufacturing the same |
| JP2016525029A (en) * | 2013-07-11 | 2016-08-22 | サフラン | Coating of turbine engine parts by over injection |
| WO2019189631A1 (en) * | 2018-03-30 | 2019-10-03 | 東レ株式会社 | Molded article and production method therefor |
| JPWO2019189631A1 (en) * | 2018-03-30 | 2021-02-12 | 東レ株式会社 | Molded product and its manufacturing method |
| US11697274B2 (en) | 2018-03-30 | 2023-07-11 | Toray Industries, Inc. | Molded article and production method therefor |
| JP7322702B2 (en) | 2018-03-30 | 2023-08-08 | 東レ株式会社 | Molded article and its manufacturing method |
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