2-Propenoic acid, 2-methyl-, methyl ester, polymer with 2-methylpropyl 2-methyl-2-propenoate, 2-methylpropyl 2-propenoate and 2-propenoic acid 67953-65-5 Methyl methacrylate, iso-butyl methacrylate, iso-butyl acrylate, acrylic acid polymer