Patent ID: 6258902
Filing Date: 2001-07-10
Classification: C08F

Abstract:
A process for preparing homopolymers or copolymers of addition polymerizable monomers, or mixtures of such monomers, the process comprising contacting said monomer or mixture under high monomer conversion polymerization conditions with a catalyst composition comprising:a) a catalyst system comprising a Group 3-10 metal complex; andc) a hydrocarbylsilane corresponding to the formula:A.sub.n J.sub.j SiH.sub.4-(n+j)wherein:J is C.sub.1-40 hydrocarbyl,A is a C.sub.2-20 alkenyl group,n is 1 or 2, andj is 0 or 1;wherein the polymer comprises from 0.1 to 100 long chain branches per 10,000 carbons, at least some of which comprise a silane branching center.