2-Propenoic acid, butyl ester, polymer with ethenylbenzene, 2-ethylhexyl 2-propenoate and methyl 2-propenoate 68683-41-0 Ethenylbenzene, 2-propenoic acid, butyl ester, 2-propenoic acid, methyl ester, 2-propenoic acid, 2-ethylhexyl ester polymer