Patent ID: 8420174

Claim:
A composition for coating a metallic surface, comprising: A 15% to 70% by weight, based on the total weight of the composition, of a binder component comprising a binder selected from the group consisting of polyacrylates or styrene/acrylate copolymers (A1), styrene/alkadiene copolymers (A2), polyurethanes (A3), and alkyd resins (A4); B 0.1% to 40% by weight, based on the total weight of the composition, of a corrosion control component comprising at least one corrosion inhibitor polymer obtained from the polymerization of B1 0.1% to 95% by weight, based on the total amount of the monomers used to form said at least one corrosion inhibitor polymer, of at least one ethylenically unsaturated monocarboxylic acid; and 0.1% to 70% by weight, based on the total amount of the monomers used to form said corrosion inhibitor polymer, of at least one monomer selected from the group consisting of B2, B3, and mixtures thereof, wherein B2 is at least one ethylenically unsaturated dicarboxylic acid of formulae (HOOC)R 1 C═CR 2 (COOH) (I),or R 1 R 2 C═C(—(CH 2 ) n —COOH)(COOH) (II), or of the corresponding dicarboxylic anhydrides, wherein R 1 and R 2 are, independently of one another, hydrogen or a straight-chain or branched, optionally substituted alkyl radical having up to 20 carbon atoms; and wherein, in the case of said at least one ethylenically unsaturated dicarboxylic acid of formula (I), R 1 and R 2 together define an optionally substituted alkylene radical having 3 to 20 carbon atoms; and wherein n is 1, 2, 3, 4, or 5; and B3 is at least one ethylenically unsaturated comonomer other than B1 and B2; C 5% to 84.9% by weight, based on the total weight of the composition, of a solvent component; D 0 to 30% by weight, based on the total weight of the composition, of a crosslinkable component; E 0 to 70% by weight, based on the total weight of the composition, of a component comprising a pigment, filler, or combination thereof; F optionally further components; wherein said composition has a pH of from 7 to 8.9.