Patent ID: 7119158
Filing Date: 2006-10-10
Classification: B01J,C08F,Y10S

Abstract:
1. A polymer formed by copolymerizing at least one polar monomer containing up to 20 carbon atoms and containing an olefinic carbon-carbon double bond selected from the group consisting of unsaturated acids and their derivatives, vinyl esters, vinyl amides, acrylonitrile, and α,β-unsaturated acids, anhydrides, esters, amides, and ketones, and at least one C 2 to C 20 nonpolar monomer containing an olefinic group under polymerization conditions using a catalyst formed by in situ reduction of a catalyst precursor comprising wherein Cp* is a cyclopentadienyl or substituted cyclopentadienyl moiety; M is an early transition metal; R is a C 1 to C 20 hydrocarbyl; R′ is independently selected from hydride and C 1 to C 20 hydrocarbyl; n is an integer selected to balance the oxidation state of M; and A is a suitable non-coordinating anionic cocatalyst, with a reducing agent.