| 摘要 |
PROBLEM TO BE SOLVED: To provide automobile exterior parts composed of a polypropylene-based resin composition, light weighted and excellent in mechanical strength and impact resistance. SOLUTION: The automobile exterior parts are composed of the polypropylene-based resin composition comprising (A1) 50-80% by mass of the polypropylene, (A2) 1-10% by mass of a propylene-based block polymer and (B) 10-49% by mass of a copolymer of a nitrile compound having a vinyl bonding and an aromatic vinyl compound, wherein the propylene-based block polymer (A2) comprises (a) a block mainly composed of polypropylene and (b) a block mainly composed of methylmethacrylate. The preferable number average molecular weight of the block (b) mainly composed of the methylmethacrylate in the propylene-based block polymer (A2) is 10,000-100,000. COPYRIGHT: (C)2007,JPO&INPIT |
