| 摘要 |
PURPOSE:The titled composition, obtained by blending propylene polymer with specific amounts of a specific propylene.ethylene block copolymer, etc., having particularly improved impact resistance and rigidity as well as good coating property and moldability and suitable as automotive outside sheets. CONSTITUTION:A composition obtained by blending (A) 65-20wt% propylene.ethylene block copolymer with 20-25mol% ethylene content and 5-30g/10min melt flow rate consisting of (A1) 50-77wt% propylene polymer having >=93 isotactic index with (A2) 20-35wt% propylene.ethylene copolymer component having 20-35mol% ethylene content and 2-3.5dl/g intrinsic viscosity, (A3) 3-15wt% ethylene polymer component having 2-3.5dl/g intrinsic viscosity with (B) 15-45wt% ethylene.alpha-olefin random copolymer having 60-85mol% ethylene content, 0.1-1g/10min melt flow rate and <=10% crystallinity and (C) 15-35wt% talc or calcium carbonate having <=5mum average particle diameter.
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