| abstract |
A resin composition excellent in impact resistance, rigidity and coatability properties, is easily moldable without causing voids and flow marks, and is suitable for the manufacture of automobile bumpers, which has a melt flow rate of not lower than 10 g/10 min. and which comprises: (A) 60 to 85 parts by weight of a crystalline propylene/ethylene block copolymer component having an ethylene unit content of 10 to 30 mole % and a melt flow rate of 10 to 30 g/10 min. (Comopnent A), (B) 5 to 20 parts by weight of an non-crystalline ethylene/alpha-olefin random copolymer component having an ethylene unit content of 60 to 85 mole %, a melt flow rate of 0.1 to 5.0 g/10 min and a crystallinity, measured by X-ray, of not more than 15% (Component B), and (C) 8 to 15 parts by weight of a talc or calcium carbonate component having an average particle size of 0.1 to 5 mu (Component C), in which values by the "parts by weight" are selected so as to amount to 100 parts by weight in total. |