Patent ID: 8815066
Filing Date: 2014-08-26
Classification: C08G,C08K,C08L,C09D,C25D,Y10T

Abstract:
1. An aqueous coating composition comprising a binder and an organometallic compound selected from the group consisting of organozinc compounds, organobismuth compounds, bis-(triorganotin)oxides, bis(triorganotin)sulfides, (triorganotin)(diorganotin) oxides, (triorganotin)(diorganotin) sulfoxides, (triorganotin)(diorganotin) sulfones, bis(triorganotin)dicarboxylates, bis(triorganotin)dimercaptides, triorganotin salts; (triorganotin)(organotin)oxides; trialkylalkyloxytin oxides, dibutyltin diacetylacetonate, trioctyltin oxide, tributyltin oxide, dibutyltin oxide, dioctyltin oxide, dibutyltin diacetate, dibutyl tin dimaleate, dibutyl tin distearate, dipropyltin dioctoate and dioctyl tin oxide; monoalkyltin compounds and combinations thereof, the binder comprising a cathodically electrodepositable, acid-neutralized, amine-functional phosphorylated resin prepared by an esterification reaction of an epoxide group of an epoxide-functional resin with a —P(OR) 2 ═O group-containing acid or acid derivative, wherein at least one R is a hydrogen atom or an alkyl group having one to four carbon atoms to form a product, wherein the phosphorylated resin comprises a monophosphate ester group, a monophosphonic acid ester group, or both, wherein at least one amine group is introduced before or after the esterification reaction by reaction of a monofunctional reactant having a tertiary amine group or a ketimine-protected primary amine group with an epoxide group or by reaction with an extender having a tertiary amine group, wherein the neutralizing acid comprises a member selected from the group consisting of phosphoric acid, phosphonic acid, propionic acid, formic acid, acetic acid, lactic acid, and citric acid, and wherein the binder further comprises a crosslinker reactive with the amine-functional phosphorylated resin selected from the group consisting of polyisocyanates, blocked polyisocyanates, and aminoplasts.