Polypropylene resin composition

摘要

The present invention relates to a polypropylene resin composition and more specifically, to a polypropylene resin composition comprising; a propylene polymer comprising a high-crystalline propylene monomer having larger than 96% of pentade fraction (%mmmm) alone or mixed with propylene-ethylene copolymer with limit viscosity Ä eta Ü larger than 3.0dl/g; an ethylene alpha -olefin copolymer rubber wherein propylene or higher than C4 alpha -olefin is mixed with ethylene; a modified polypropylene, a polyolefin polyol, or a mixture polymer thereof containing polar groups; and an inorganic filler. The polypropylene resin composition according to the present invention provides superior physical properties such as impact resistance, rigidity and fluidity. Further, it has a good adhesion cartelistic to paints, so that direct painting is possible without any primer treatment. Accordingly, it can be used for automotive inner parts such as instrument panels and door trims, and components for household appliances such as refrigerator's back cover.