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1. 发明申请

WO1996030185A1 PROCESS FOR PRODUCING MULTI-LAYER MOLDED ARTICLES 审中-公开
标题翻译：生产多层成型制品的方法
公开(公告)号：WO1996030185A1
公开(公告)日：1996-10-03
申请号：PCT/JP1996000592
申请日：1996-03-07
申请人： ARACO KABUSHIKI KAISHA , SHOWA DENKO KABUSHIKI KAISHA , ISHITOYA, Katsunori , TAKAISHI, Minoru , OKOCHI, Michihiro , IWAMOTO, Hideyuki , NAKAGAMI, Sakuyoshi , TANAKA, Kazufumi
发明人： ARACO KABUSHIKI KAISHA , SHOWA DENKO KABUSHIKI KAISHA
IPC分类号： B29C43/20
CPC分类号： B60R13/02 , B29C31/044 , B29C43/18 , B29C43/203 , B29C43/34 , B29C44/00 , B29C47/00 , B29C47/0019 , B29C47/0021 , B29C70/78 , B29C2043/3433 , B29C2043/3438 , B29K2105/04 , B29K2105/256 , B29K2311/14 , B29K2711/14 , B29L2009/00 , B29L2031/3014 , B29L2031/3041 , B60R13/0243
摘要： A multi-layer molded article such as a door trim is produced by extruding a molten surfacing resin layer (13m) forming a soft thin surface layer (13), a molten intermediate resin layer (12m) forming an expanded soft interlayer (12), and a molten resin layer (11m) forming a support (11) through dieheads (40) of extruders into sheets, feeding these sheets in such a state that the molten resin layer (11m) comes into contact with a bottom tool (20), and compression-molding the sheets. It is preferable that the molten surfacing resin layer (13m) be composed of a thermoplastic elastomer, the molten intermediate resin layer (12m) be composed of an ethylenic copolymer comprising at least ethylene and a radical-polymerizable acid anhydride and containing a blowing agent, and the molten resin layer (11m) be composed of an olefinic resin. Further, it is preferable that the thermoplastic elastomer be an olefinic thermoplastic elastomer and/or a styrenic one having a melt flow rate of 0.1 to 200 g/10 min as determined at 230 DEG C under a load of 2.16 kg and a Shore A hardness of 50 to 96. Furthermore, it is preferable that at least two of the molten resin layers be laminated in a diehead and extruded and fed in the form of a multi-layer sheet. Additionally, the molten resin layer (11m) may preliminarily be molded and put on the bottom tool, followed by the extrusion thereonto of a multi-layer sheet comprising the molten intermediate and surfacing resin layers (12m and 13m).
摘要翻译：通过挤出形成软薄层（13）的熔融表面树脂层（13m），形成膨胀软中间层（12）的熔融中间树脂层（12m），制造多层成型体，例如门饰件，和通过挤出机的模头（40）形成支撑体（11）的熔融树脂层（11m）成片材，在熔融树脂层（11m）与底部工具（20）接触的状态下供给这些片材，并压缩成型片材。熔融表面树脂层（13m）优选由热塑性弹性体构成，熔融中间树脂层（12m）由至少含有乙烯和自由基聚合性酸酐的含有发泡剂的乙烯系共聚物构成，熔融树脂层（11m）由烯烃树脂构成。此外，优选热塑性弹性体是在230℃，2.16kg负荷和肖氏A硬度下测定的熔体流动速率为0.1-200g / 10min的烯属热塑性弹性体和/或苯乙烯类弹性体为50〜96个。此外，优选将至少两个熔融树脂层层叠在模头中，并以多层片的形式挤出并进料。另外，熔融树脂层（11m）可以预先模塑并放在底部工具上，然后将其挤压到包含熔融中间体和表面树脂层（12m和13m）的多层片材上。

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