Patent ID: 8188189

Claim:
A resin composition, comprising (a) 50 to 99% by weight of a crystalline polypropylene resin, and (b) 1 to 50% by weight of a propylene copolymer comprising 50 to 85% by mol of a propylene unit and 15 to 50% by mol of an α-olefin unit having 8 to 12 carbon atoms, the propylene copolymer having: (1) no melting point in a range of −100 to 200° C., measured according to a differential scanning calorimetry (DSC); (2) an isotactic selectivity of 90% or higher; (3) a molecular weight distribution of 3 or smaller; and (4) an intrinsic viscosity of 0.1 to 10 dl/g; wherein the total of the propylene unit and the α-olefin unit is 100% by mol, and the total of the crystalline polypropylene resin and the propylene copolymer is 100% by weight.