Patent ID: 6221494
Filing Date: 2001-04-24
Classification: C08G,C09D,Y10T

Abstract:
An ambient curable coating composition comprising a binder, which comprises:a hydroxyl component comprising a linear or branched cycloaliphatic moiety-containing reactive oligomer having a GPC weight average molecular weight not exceeding 3,000 and a polydispersity not exceeding about 1.7, said reactive oligomer having at least two hydroxyl groups, at least one of said hydroxyl groups on average being a primary hydroxyl group, said oligomer being produced by reacting an oligomeric acid with a monofunctional epoxy selected from the group consisting of ethylene oxide, butylene oxide, propylene oxide, and a combination thereof; anda crosslinking component comprising an oligomeric crosslinker provided with at least two isocyanate groups wherein the ratio of equivalents of isocyanate per equivalent of hydroxyl groups is in the range of from 0.5/1 to 3.0/1.