RETARDING DEPOLYMERIZATION OF POLY(METHYL METHACRYLATE) GRAFTED ONTO A PROPYLENE POLYMER

摘要

Depolymerization during melt processing of poly(methyl methacrylate) that is grafted onto a backbone of propylene polymer material is retarded by adding 0.025 parts to 5.0 parts of a hydroxylamine compound per hundred parts of the graf t copolymer. The methyl methacrylate can be copolymerized with another monomer such as methyl acrylate.