2-Propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with butyl 2-propenoate, N-(hydroxymethyl)-2-propenamide and 2-propenoic acid 67952-73-2 Acrylic acid, butyl ester, polymer with isobutyl methacrylate, acrylic acid and N-(hydroxymethyl)acrylamide