Ethenylbenzene, butyl 2-methyl-2-propenoate, methyl 2-methyl-2-propenoate, (1-methylethenyl) benzene polymer

2-Propenoic acid, 2-methyl-, butyl ester, polymer with ethenylbenzene, (1-methylethenyl)benzene and methyl 2-methyl-2-propenoate