Plasticized copolymers

摘要

A composition comprising a copolymer of styrene with vinyl chloride or methyl methacrylate and a plasticizer which has the property of lowering the Tg of a homopolymer of one of the monomers but of not lowering the Tg of the homopolymer of the other monomer. The compositions are transparent and have a high resistance to impact, good hardness and improved elongation under impact.