AQUEOUS COATING COMPOSITIONS

摘要

A composition comprising water and the following components: (a) an epoxy compound comprising at least one epoxy group and at least one nitrogen atom; and (b) a carboxy functional polymer, a hydroxy functional polymer, a polymer having carboxy and hydroxy functionality, or a mixture comprising two or more of said polymers; provided that when the epoxy compound has only one epoxy group it has at least one hydrolysable silyl group. Also claimed are epoxy cross-linkers, films, coatings and processes for their preparation.