Patent ID: 6548588
Filing Date: 2003-04-15
Classification: C08G,C09D

Abstract:
A water-dispersible, air-drying uralkyd resin comprising the reaction product of:i) 5-75 wt % of an amide ester diol product obtained from the reaction between a triglyceride oil and an N,N-dialkanolamine; ii) 15-50 wt % of an organic polyisocyanate(s); iii) a carboxylic acid-bearing polyol(s) for providing chain-pendant carboxylate ion dispersing groups in the resultant uralkyd resin; iv) 1-10 wt % of an isocyanate-reactive polyethyleneoxide chain containing compound(s), for providing pendant and/or terminal polyethyleneoxide chains in the resultant uralkyd resin; v) 0-50 wt % of organic polyol(s) other than those provided by i), iii) and iv), provided that the amount of any such other polyol(s) which is not a diol(s) must not exceed 10 wt %; and wherein further the acid value of the uralkyd resin is within the range of from 5 to 30 mg KOH/g of resin.