Patent ID: 6274682
Filing Date: 2001-08-14
Classification: C08L,Y10T

Abstract:
A hydroxy-functional resin produced by reacting:(a) an epoxy resin(s) having at least 1.5 epoxy groups per molecule;(b) a liquid amine terminated polyamide prepared by reacting at least one C.sub.18-50 dicarboxylic acid, dicarboxylic acid ester or dicarboxylic acid chloride with an aminoalkylpiperazine in a ratio of moles of aminoalkylpiperazine to equivalents of carboxyl group in the acid of greater than 0.75:1; wherein the aminoalkylpiperazine is of the formula: ##STR3##wherein R.sup.1 is hydrogen and R.sup.2 is --R.sup.3 --NH.sub.2, wherein R.sup.3 is a divalent aliphatic linkage with optional --CHR.sup.4 -- or --CR.sup.4 R.sup.5 -- units, wherein R.sup.4 and R.sup.5 are independently alkyl groups, wherein the molar ratio of the epoxy resin to said liquid amine terminated polyamide is from about 3:1 to about 1:3; and(c) a hydroxy-functional amine, wherein the equivalents ratio of amine hydrogen to said epoxy groups is within the range of from about 1:2 to about 2:1.