| 摘要 |
A polypropylene resin composition comprising a propylene polymer (A), an elastomer (B), and a graft copolymer (C) composed of a principal chain comprising an olefin copolymer and side chains derived from a vinyl monomer, wherein the contents of components (A) and (B) are, respectively, 50-99 wt.% and 50-1 wt.% based on the total amount of components (A) and (B) and the amount of component (C) is 0.1-20 parts by weight based on 100 parts by weight of a mixture of components (A) and (B). This composition can readily form a coating film without using any primer when used for coating polyolefin resin moldings such as automotive exterior parts including bumpers and side moldings without the necessity for cleaning the surface of the molding. It has excellent applicability, high weathering and moisture resistances, and also excellent rigidity-impact resistance balance.
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