2-Propenoic acid, 2-methyl-, butyl ester, polymer with ethenylbenzene, methyl 2-methyl-2-propenoate and 2-propen-1-ol 68072-42-4 Ethenylbenzene, 2-propen-1-ol, butyl 2-methyl-2-propenoate, methyl 2-methyl-2-propenoate polymer