Patent ID: 6221934
Filing Date: 2001-04-24
Classification: C08J,C08L

Abstract:
An aqueous epoxy resin dispersion comprising:a) water;b) at least one epoxy resin having a functionality of greater than 0.8 epoxide group per molecule;c) from 0.1 to 20 weight percent, based on the epoxy resin of at least one epoxy-functional surfactant prepared by reacting an amidoamine having the structures: ##STR13##wherein R.sup.1 is an alkyl, aryl, or arylalkyl group or mixtures thereof having 1 to 15 carbon atoms, R.sup.2 is aliphatic, cycloaliphatic, or aromatic group having 2 to 18 carbon atoms optionally containing non-reactive oxygen or at most an average of 4 secondary and/or tertiary nitrogen atoms per structure in the backbone, wherein X and Y are independently hydrogen, methyl, or ethyl with the provision that X or Y is hydrogen, and n+m+o is a real number from 40 to 400, and n+o is a real number of at least 15, and for formula (III) o is a real number from 20 to 380, and wherein the ratio of (I) to (II) by weight is in the range of 100:0 to 0:100, the ratio of (I) to (Ill) by weight in the range of 100:0 to 0:100, and the ratio of (11) to (IlI) by weight in the range of 100:0 to 0:100, and at least one epoxy resin having a functionality of from greater than 0.8 epoxide group per molecule in an amine to epoxy equivalent ratio of at least 1:2.