2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, ethenylbenzene, ethenylmethylbenzene and methyl 2-methyl-2-propenoate 68134-67-8 Ethenylmethylbenzene, ethenylbenzene, methyl 2-methyl-2-propenoate,butyl 2-propenoate, 2-methyl-2-propenoic acid pentapolymer