68413-99-0 Butanedioic acid, methylene-, polymer with butyl 2-propenoate, N-(hydroxymethyl)-2-propenamide, 2-methyl-2-propenoic acid and 2-propenenitrile Butyl acrylate, acrylonitrile, methacrylic acid, itaconic acid, methylolacrylamide polymer