Patent ID: 6822038
Filing Date: 2004-11-23
Classification: C08G,C08L,C09D

Abstract:
An aqueous coating material comprisingA) at least one polyester that is water-soluble or water-dispersible, B) at least one polyurethane acrylate that is water-soluble or water-dispersible, C) at least one amino resin that is itself water-soluble or water-dispersible or is water-soluble or water-dispersible in the presence of the polyester and the polyurethane acrylate, D) at least one of a color pigment, an effect pigment, a color and effect pigment, and a filler, and E) optionally, at least one polyisocyanate, wherein the polyester comprises a reaction product of a1) a mixture comprising a11) from 40 to 80 mol % of the mixture of at least one of an aliphatic polycarboxylic acid, a cycloaliphatic polycarboxylic acid, an esterifiable derivative of an aliphatic polycarboxylic acid, and an esterifiable derivative of a cycloaliphatic polycarboxylic acid, a12) from 20 to 60 mol % of the mixture of at least one of an aromatic polycarboxylic acid and an esterifiable derivative of an aromatic polycarboxylic acid; and a2) at least 60 mol % of the polyester of at least one of an aliphatic polyol and a cycloaliphatic polyol, wherein each of the aliphatic polyol and the cycloaliphatic polyol include in its molecule at least one structural element â€”C(R1R2)â€”CH2OH, wherein R1 and R2 are each at least one of a methylol group, a 1 to 20 carbon aliphatic hydrocarbon radical, a cyclo-aliphatic hydrocarbon radical, and an aromatic hydrocarbon radical.