Cationic amine-functional copolymer mixture with aminoplast resin and aqueous baths containing the same

摘要

Cationic amine-functional copolymer mixtures with aminoplast resins which are stably dispersible in water with the aid of a solubilizing acid and water miscible organic solvent, and which cure to possess superior detergent and corrosion resistance are provided by forming a solution copolymer of monoethylenically unsaturated monomers including from 3% to 35% of monomer having a basic amino group and from 20% to less than 35% of isobutoxymethyl acrylamide or methacrylamide. The copolymer preferably includes from 20% to 45% of styrene and/or vinyl toulene in admixture with from 15% to 40% of 2-ethylhexyl methacrylate and the preferred aminoplast resins are benzoguanamine-formaldehyde and bisphenol-formaldehyde.