2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate, ethyl 2-propenoate and 2-hydroxyethyl 2-propenoate 33395-08-3 Methyl methacrylate, butyl acrylate, ethyl acrylate, 2-hydroxyethylacrylate polymer