Patent ID: 7446147

Claim:
A propylene resin composition comprising: (A) a crystalline propylene block copolymer in an amount of 89 to 30% by weight, which has a 23° C. n-decane-soluble component content of 22 to 35% by weight, said soluble component having an intrinsic viscosity [η]a, as measured in decalin at 135° C., of not less than 1 dl/g and less than 5 dl/g, has a melt flow rate (MFR, 230° C, load of 2160 g), as measured by the method of ASTM D 1238, of 10 to 150 g/10 min, and has an isotactic pentad fraction of a polypropylene homopolymer portion, as measured by 13 C-NMR, of not less than 0.97, (B) a crystalline propylene block copolymer in an amount of 5 to 25% by weight, which has a 23° C. n-decane-soluble component content of 23 to 35% by weight, said soluble component having an intrinsic viscosity [η]b, as measured in decalin at 135° C., of 5 to 10 dl/g, has a melt flow rate (MFR, 230° C., load of 2160 g), as measured by the method of ASTM D 1238, of 1 to 35 g/10 min, and has an isotactic pentad fraction of a polypropylene homopolymer portion, as measured by 13 C-NMR, of not less than 0.97, (C) an elastomeric polymer in an amount of 1 to 20% by weight which has a melt flow rate (MFR, 230° C., load of 2160 g) of 0.5 to 30 g/10 min, and (D) an inorganic filler in an amount of 5 to 25% by weight, with the proviso that the total amount of the components (A) to (D) is 100% by weight.