Patent ID: 7399352

Claim:
A coating composition comprising the reaction product of the following components: (a) at least one cycloaliphatic diepoxide; and (b) a polyacrylate, alkyd, polyester, epoxy or multifunctional polyol having alkoxysilane functionality; and (c) at least one metal ester having the general formula Rm-M(OR′)n, wherein M is Si, Al, Zr, Ti, Mg, B, W or Mo, and where Rm is a hydrocarbon group of less than 10 carbon atoms or a group comprising hydrogen, carbon and oxygen of less than 20 carbon atoms, R′ is an alkyl or aryl group of less than 10 carbon atoms, m has values of 0, 1, 2 an 3 and correspondingly n is 4, 3, 2, or 1; and (d) at least one organofunctional alkoxysilane; and (e) a reaction product of a multifunctional polyol and a compound selected from the group consisting of an isocyanate-functional silane, a multifunctional orthosilicate, and a metal ester.