Patent ID: 8329824

Claim:
A propylene polymer composition comprising 1 to 30 parts by weight of isotactic polypropylene (i) having a melting point of not lower than 150° C. and to 70 to 99 parts by weight of a copolymer (ii) which contains 45 to 80% by mol of a propylene component, 10 to 25% by mol of an ethylene component, and optionally, 7 to 30% by mol a 1-butene component, wherein the copolymer (ii) has a molecular weight distribution (Mw/Mn) of not more than 4.0 as measured by gel permeation chromatography (GPC), and wherein the propylene polymer composition has a tensile modulus (YM), as measured in accordance with JIS 6301, of not more than 100 MPa, and a ratio of a storage elastic modulus G′ (20° C.) to a storage elastic modules G′ (100° C.) obtained from the dynamic viscoelasticity measurement, G′ (20° C.)/G′ (100° C.), of not more than 5.