英文名称:2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethenylbenzene and 1-ethenyl-2-pyrrolidinone 2-Propenoic acid,2-methyl-,methyl ester,polymer with ethenylbenzene and 1-ethenyl-2-pyrrolidinone; 2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethenylbenzene and 1-ethenyl-2-pyrrolidinone 2-Propenoic acid,2-methyl-,methyl ester,polymer with ethenylbenzene and 1-ethenyl-2-pyrrolidinone; METHYL METHACRYLATE-STYRENE-VINYLPYRROLIDINONE POLYMER