2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester, polymer with butyl 2-propenoate, ethenylbenzene, methyl 2-methyl-2-propenoate and 2-propenoic acid 55993-98-1 67846-53-1 Acrylic acid, butyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, styrene polymer