WATER COMPATIBLE AMINE TERMINATED RESIN USEFUL FOR CURING EPOXY RESINS

摘要

A water miscible or soluble amine terminated resin useful as a curing agent comprising the reaction product of: A) a polya- mine component comprising one or more hydrophilic amine terminated polyalkylene glycols, and optionally one or more hydro- phobic polyamines; B) a polyepoxide component comprising one or more diglycidyl ethers of a polyalkylene glycol, one or more diglycidyl ethers of a cycloalkylene glycol and optionally one or more hydrophobic polyglycidyl ethers, wherein the mixture is op- tionally advanced by an amine extender; C) optionally, a reactive diluent which is capable of reacting with an epoxy resin; and D) optionally, a catalyst for the reaction of an amine with an epoxy resin; wherein Component A is employed in an equivalent excess with respect to Component B such that the terminal moieties of the reaction product are amine moieties capable of react- ing with an epoxy resin; the composition has an amine hydroxy equivalent weight of from 140 to 240; and the composition is wa- ter soluble or water miscible. In preferred embodiments such amine terminate d resin is an efficient pigment grinding vehicle. The aminate terminated resin can be dispersed in water with a polyepoxide to for m a coating composition.