Patent ID: 6740724
Filing Date: 2004-05-25
Classification: C08F

Abstract:
A polymer comprising from 95 to 80 weight % of one or more C2-8 alpha olefins and from 5 to 20 weight % of one or more C8-20vinyl aromatic monomers which are unsubstituted or substituted by one or more substituents selected from the group consisting of a chlorine or bromine atom and a C1-4 alkyl radical, and from 0 to 10 weight % of one or more monomers selected from the group consisting of C5-9 nonconjugated diolefin monomers wherein the vinyl aromatic monomer is incorporated into the polymer in a manner such that the distribution of vinyl aromatic monomers does not follow Bernoullian statistical distribution and not less than 90% of the branching due to the vinyl aromatic monomer is separated by 5 or 6 methylene groups as determined by 13C NMR.