Patent ID: 7572506
Filing Date: 2009-08-11
Classification: C08G,C08L,C09D,Y10T

Abstract:
1. An aqueous coating composition comprising the following components: A) at least one water-dilutable epoxy resin, B) at least one polyamine curing agent, C) optionally at least one water-dilutable polyurethane resin, D) water and E) optionally pigments, fillers, conventional paint additives and/or organic solvents, wherein the polyamine curing agent B) comprises a mixture of: B1) 5-95% by weight of at least one amino functional compound with at least two secondary and/or primary amino groups and B2) 95-5% by weight of at least one water-dilutable (meth)acrylic copolymer, wherein the percentages by weight of components B1) and B2) are based on solids and add up to 100% by weight; wherein said (meth)acrylic copolymer contains carboxyl groups and is free of epoxide groups and other functional groups that are reactive with amino groups, and wherein said carboxyl groups are neutralized with bases.