2-Propenoic acid, 2-methyl-, butyl ester, polymer with ethenylbenzene, 1-ethenyl-2-pyrrolidinone, ethyl 2-propenoate, 2-hydroxyethyl 2-propenoate and methyl 2-methyl-2-propenoate 68298-53-3 Vinylpyrrolidone, hydroxyethyl acrylate, butyl methacrylate, methylmethacrylate, ethyl acrylate, styrene copolymer