Silicone-acrylate impact modifier

摘要

A silicone-acrylate impact modifier composition, wherein said impact modifier composition comprises structural units derived from: at least one silicone rubber monomer, a branched acrylate rubber monomer having the formula: wherein R<1 >is selected from hydrogen and C1-C8 linear and branched hydrocarbyl groups; and R<2 >is a branched C3-C16 hydrocarbyl group; a first graft link monomer, a polymerizable alkenyl-containing organic material, and and a second graft link monomer. The silicone-acrylate impact modifier compositions disclosed herein are useful for making molding compositions, which are useful for producing various articles, especially for outdoor applications.