Patent ID: 6258875
Filing Date: 2001-07-10
Classification: C08G

Abstract:
An aqueous dispersion of modified epoxy resin with a urethane and a urea group content of 5-250 mmol, based on 100 g solid content of the dispersion, containing at least one modified epoxy resin A) having an epoxy equivalent weight of 250-10,000, whereby the modified epoxy resin A) are the reaction product ofA1) 43.0-86.0 wt-% of at least one epoxy compound having at least 2 epoxy groups per molecule and an epoxy equivalent weight of 100 to 2000,A2) 10,0-25,0 wt-% of at least one aromatic polyol,A3) 2,0-12,0 wt-% of at least one aliphatic polyol andA4) 2,0-20,0 wt-% of at least one polyisocyanate,wherein the percentages are relative to solid contents and wherein the sum of the components A1), A2), A3) and A4) adds up to 100 wt-%.