Patent ID: 7253232
Filing Date: 2007-08-07
Classification: C07D,C08L

Abstract:
1. A composition comprising A) a thermoplastic polymer and B1) a triblock-copolymer of the formula B-C-B; or B2) a graft copolymer wherein a polymer block B is grafted onto a polymer C to form a comb copolymer of idealized formula C-B(n) wherein n is greater than 2; wherein the polymer block B is compatible to the thermoplastic polymer A); and the polymer block C is a polysiloxane which has a glass transition temperature of at least 20° K. below the glass transition temperature of the thermoplastic polymer A); and the average molecular weight M and wherein the triblock copolymer or the graft copolymer is prepared via controlled free radical polymerization comprising the steps  under hydrosylilation conditions and  is capable of initiating polymerization of ethylenically unsaturated monomers,