Patent ID: 6395845
Filing Date: 2002-05-28
Classification: C08G

Abstract:
A thermoset epoxy resin waterproofing membrane having a thickness ranging from 25 mils to 250 mils, comprising:(a) one or more epoxy resin(s) having an average of at least 1.5 epoxy groups per molecule; (b) a liquid amine terminated polyamide prepared by reacting at least one C18-50 dicarboxylic acid and an aminoalkylpiperazine in a ratio of moles of aminoalkylpiperazine to equivalents of carboxyl group in the acid of greater than 0.75:1; (c) one or more optional polyamine(s); and (d) one or more optional fillers; wherein the tensile modulus of the thermoset epoxy waterproofing membranes is less than 200,000 psi and the tensile elongation of the thermoset epoxy waterproofing membrane is greater than 20%.