Patent ID: 7223828
Filing Date: 2007-05-29
Classification: C08F

Abstract:
1. A polymer composition that includes a branched crystalline diene-modified polypropylene random terpolymer having propylene units; first diene units; second diene units; from 0.0 wt % to 2.0 wt % ethylene units; and a heat of fusion of 30 J/g or more, wherein the first diene units are derived from 2-methyl-1.5-hexadiene monomer or α, internal nonconjugated diene monomers and the second diene units are derived from α, ω non-conjugated diene monomers, each having 5 or more carbon atoms, wherein the branched crystalline polypropylene has a Branching Index of 0.95 or less.