Patent ID: 8354471

Claim:
An aqueous coating composition comprising a binder, the binder comprising a phosphorylated acrylic polymer, wherein the phosphorylated acrylic polymer comprises at least one phosphorous-containing group in which X is a hydrogen, a monovalent hydrocarbon group, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the acrylic polymer, with the caveat that at least one oxygen atom has a covalent ester bond to the acrylic polymer resulting from esterification of a hydroxyl or epoxide group provided by an ethylenically unsaturated monomer comprising a hydroxyl or epoxide group, wherein the coating composition comprises pigment in an amount of 10-40 percent by weight based on nonvolatile material and wherein the coating composition is cathodically electrodepositable.