发明名称 POLYPROPYLENE COMPOSITION
摘要 The present invention relates to a polypropylene composition comprising a crystalline ethylene-propylene block copolymer having an ethylene content of 5-20% by weight and a melt flow index of 11-90, a thermoplastic elastomer, an amorphous propylene-.alpha. -olefin random copolymer having a number-average molecular weight of 1,000-20,000 and a propylene content of 40-95% by weight and an inorganic filler. This composition can be made into a molded article having no flow mark on the surface. The molded article is superior in rigidity, heat deformation resistance, low temperature impact resistance and coatability, has appearance free from waviness, voids, etc., and is suitable for use particularly in high quality bumper for automobiles.
申请公布号 CA2002506(A1) 申请公布日期 1990.05.21
申请号 CA19892002506 申请日期 1989.11.08
申请人 UBE INDUSTRIES, LTD. 发明人 UENO, KOUHEI
分类号 C08L21/00;C08K3/00;C08L23/00;C08L23/08;C08L23/16;C08L53/00;(IPC1-7):C08L51/00;C08L51/06 主分类号 C08L21/00
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