2-Propenoic acid, polymer with butyl 2-propenoate, ethenylbenzene and 2-hydroxyethyl 2-propenoate 25067-83-8 62601-95-0 71538-17-5 Acrylic acid, butyl acrylate, hydroxyethyl acrylate, styrene polymer Styrene, butyl acrylate, hydroxyethyl acrylate, acrylic acid polymer