Patent ID: 9606465
Date: 2017-03-28
CPC Classifications: C08F,G03G

Claim:
1. A propylene/α-olefin copolymer (A) comprising 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from α-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol %, the propylene/α-olefin copolymer (A) satisfying the following requirements (i) to (iv): (i) A weight average molecular weight (Mw) as measured by GPC is 3,000 to 40,000; (ii) A melting point (Tm) as measured by DSC is 60 to 90° C.; (iii) A half width of a melting point peak as measured by DSC is 1 to 20° C.; and (iv) A number of vinylidene groups per 1000 carbon atoms as measured by