2-Butenedioic acid (2E)-, dibutyl ester, polymer with butyl 2-methyl-2-propenoate, ethenylbenzene and 2-hydroxyethyl 2-methyl-2-propenoate 73003-53-9 Styrene, butyl methacrylate, dibutyl fumarate, 2-hydroxyethyl methacrylate polymer