Patent ID: 8420219

Claim:
A method of applying a corrosion control coat to a metallic surface comprising applying a layer of a preparation comprising a curable and/or crosslinkable binder system (A); a component (B) selected from the group consisting of finely divided fillers, pigments, dyes, and mixtures thereof; and a polymeric corrosion preventative (C), wherein said polymeric corrosion preventative is a copolymer (C) synthesized from the following monomeric building blocks: (C1) 20% to 70% by weight of N-vinylimidazole; (C2) 10% to 50% by weight of at least one monoethylenically unsaturated monomer comprising at least one acid group, wherein said at least one acid group is selected from the group consisting of carboxylic acid groups, phosphoric acid groups, phosphonic acid groups, and sulfonic acid groups; (C3) 10% to 50% by weight of at least one monoethylenically unsaturated aromatic hydrocarbon; and (C4) 0% to 25% by weight of non-(C1 to C3) ethylenically unsaturated monomers; to said metallic surface, wherein the amount of each monomeric building block is based on the total amount of all monomeric building blocks in said copolymer.