| abstract |
The present invention provides a polypropylene resin composition having a good appearance after injection molding, excellent impact resistance, linear expansion characteristics, and sharpness of coating, and a molded article which is an injection molded part for automobiles comprising the same. A propylene / ethylene block copolymer having an MFR of 40 to 100 g / 10 min is 45 to 55% by weight, an MFR of 4 to 10 g / 10 min and a density of 0.855 to 0.865 g / cm 3 . A polypropylene resin composition containing 20 to 30% by weight of an ethylene / butene random copolymer and 25 to 35% by weight of talc having an average particle size of 3 μm or less, wherein the polypropylene resin composition has an MFR of A polypropylene characterized by satisfying 20 g / 10 min or more, a flexural modulus of 1800 MPa or more, an Izod impact strength at −30 ° C. of 6 kJ / m 2 or more, and a linear expansion coefficient of 5 × 10 −5 cm / cm · ° C. or less. -Based resin composition. [Selection figure] None |