Patent ID: 6416817
Filing Date: 2002-07-09
Classification: C08J,C09D

Abstract:
A process for treating a surface of a substrate with a compound of the formulaRaX3âˆ’aSiâ€”Zâ€”SiX3âˆ’aRa in which Z is Râ€²NH(Râ€²NH)pRâ€²; and wherein each R is selected from the group consisting of a hydrogen atom and a hydrocarbon group; each X is selected from the group consisting of an alkoxy group with 1 to 4 carbon atoms, a halogen atom, an oxime group or an acyloxy group; each Râ€² is a divalent hydrocarbon group having 1 to 12 carbon atoms; a is from 0 to 3; and p is 0 or 1; the process comprising applying the compound in combination withi) an organic acid having two or more acid substituents, and wherein the organic acid is a polybasic carboxylic acid selected from the group consisting of itaconic acid, citric acid, succinic acid, butane tetracarboxylic acid, ethylene diamine tetracetic acid, ascorbic acid, tetrahydrofuran tetracarboxylic acid, cyclopentane tetracarboxylic acid, and benzene tetracarboxylic acid; or ii) a polymer or co-polymer of an unsaturated carboxylic acid selected from the group consisting of itaconic, citraconic, mesaconic, maleic, furmaric, acrylic, methacrylic, sorbic, and cinnamnic acid, to a substrate to form a coating layer, and curing the layer by exposure to moisture.