Automobile exterior member polypropylene resin composition and the automobile exterior member

摘要

PROBLEM TO BE SOLVED: To provide a polypropylene-based resin composition for an automotive exterior member excellent in dimension stability, physical properties balance, workability, flow mark and weld appearance, and to provide the automotive exterior member.;SOLUTION: There is provided a polypropylene-based resin composition for an automotive exterior member containing 50 to 65 wt.% of the following component (A), 35 to 50 wt.% of a component (B) (a total of the components (A) and (B) is 100 wt.%) and 35 to 55 pts.wt. of a component (C) and 65 to 95 pts.wt. of a component (D) based on a total 100 pts.wt. of the components (A) and (B). Component (A): a propylene-α-olefin block copolymer having a propylene single polymer part and a propylene-α-olefin copolymer part and satisfying conditions (A-1) to (A-5). Component (B): a propylene-α-olefin block copolymer having the propylene single polymer part and the propylene-α-olefin copolymer part and satisfying conditions (B-1) to (B-5). Component (C): an ethylene butene copolymer satisfying conditions (C-1) to (C-2). Component (D): a talc satisfying conditions (D-1) to (D-2).;COPYRIGHT: (C)2014,JPO&INPIT