Polypropylene-based resin composition and its injection molded article

摘要

Disclosed are a polypropylene-based resin composition comprising 100 parts by weight of a resin comprising from 75 to 95% by weight of a propylene-ethylene block copolymer (A-1) and from 5 to 25% by weight of a copolymer rubber of ethylene and alpha-olefin having from 4 to 20 carbon atoms (B) and from 0.3 to 2 parts by weight of talc (C), and a polypropylene-based resin composition comprising 100 parts by weight of a resin comprising from 55 to 94% by weight of a propylene-ethylene block copolymer (A-1), from 1 to 20% by weight of a propylene homopolymer (A-2) and from 5 to 25% by weight of a copolymer rubber of ethylene and alpha-olefin having from 4 to 20 carbon atoms (B) and from 0.3 to 2 parts by weight of talc (C).