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Automobile exterior component molding method, laminated film or sheet used therein, and automobile exterior parts

机译:汽车外饰部件成型方法,其中使用的层压膜或片材以及汽车外饰部件

摘要

The present invention relates to a process for producing a propylene polymer composition, which comprises preparing a colored layer comprising a propylene polymer composition (A) and a transparent layer-containing film or plate laminated with the propylene polymer composition (A);Heating the laminated film or sheet;;Supplying the heated laminated film or sheet to a mold having a die pair;;Molding the laminated film or sheet into a desired shape by closing the mold;;A step of releasing the closed mold;;And injecting the thermoplastic polymer into the colored layer side of the mold to integrate the molded laminated film or sheet with the base layer of the thermoplastic polymer. The propylene polymer composition is obtained by mixing a polypropylene block copolymer and / or a polypropylene random copolymer exhibiting a specific intrinsic viscosity, polyethylene having a specific intrinsic viscosity, an elastomer having a specific intrinsic viscosity of an -olefin and ethylene, In a certain ratio.;The method can provide an automotive exterior part that exhibits the same colored appearance and texture as the painted exterior part, regardless of the coating process.
机译:本发明涉及一种制备丙烯聚合物组合物的方法,该方法包括制备着色层,该着色层包含丙烯聚合物组合物(A)和层压有丙烯聚合物组合物(A)的含透明层的膜或板;膜或片;;将加热的层压膜或片供应至具有模具对的模具;;通过闭合模具将层压膜或片成型为所需形状;;释放封闭的模具的步骤;以及注入热塑性塑料聚合物进入模具的着色层侧,以使模制的层压膜或片材与热塑性聚合物的基础层结合在一起。丙烯聚合物组合物通过将具有特定特性粘度的聚丙烯嵌段共聚物和/或聚丙烯无规共聚物,具有特定特性粘度的聚乙烯,具有-烯烃和乙烯的特定特性粘度的弹性体以一定比例混合而获得。该方法可以提供一种汽车外部部件,无论其涂覆工艺如何,其都具有与涂漆的外部部件相同的着色外观和纹理。

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