Patent ID: 6300428
Filing Date: 2001-10-09
Classification: C08G,C09D,Y10T

Abstract:
A curable coating composition comprising a coating solids component which includes:(A) at least about 30 wt. % of quaternized reaction product obtained from reactants comprising:(1) an epoxy resin;(2) a sufficient amount of acid to provide about 0.8 to about 4 equivalents of acid groups per equivalent of original oxirane groups in the epoxy resin; and(3) about 0.25 to about 4 equivalents of a tertiary amine per equivalent of the original oxirane groups;wherein at least 0.25 equivalents of the oxirane groups have been converted by the tertiary amine into quaternary ammonium groups, and the remaining oxirane groups have been converted by the acid into ester groups, andwherein the quaternized reaction product includes at least about 0.25 equivalents of quaternary ammonium salts per equivalent of the original oxirane groups; and(B) at least about 5 wt. % of 2 reactive diluent having a molecular weight of at least about 200; and(C) a curing agent.