2-Propenoic acid, 2-methyl-, polymer with ethenylmethylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate 68134-66-7 Ethenylmethylbenzene, ethyl 2-propenoate, 2-ethylhexyl 2-propenoate, 2-methyl-2-propenoic acid tetrapolymer