| 摘要 |
PURPOSE:A composition, obtained by incorporating a specific crystalline ethylene-propylene copolymer with a specific ethylene-propylene copolymer rubber, talc having a specific particle diameter and barium sulfate, and having improved coating performance and high rigidity, molding fluidity and impact resistance. CONSTITUTION:A polypropylene resin composition obtained by incorporating (A) 40-85pts.wt. crystalline ethylene-propylene copolymer having 5-20wt% ethylene content and >=5 melt flow index at 230 deg.C with (B) 10-30pts.wt. ethylene-propylene copolymer rubber having 40-60wt% propylene content and 15-80 Mooney viscosity at 100 deg.C, (C) 2.5-27.5pts.wt. talc having <=6mum average particle diameter and (D) 2.5-27.5pts.wt. barium sulfate having <=1.0mum average particle diameter to give 5-30pts.wt., based on 100pts.wt. total of the components (A), (B), (C) and (D), components (C) and (D). |
