Water reducible epoxy-amine adducts based on the diglycidyl ether of cyclohexane dimethanol
AssigneeHi-Tek Polymers, Inc.
InventorsWilliam J. DeGooyer, George A. Roy, II
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Abstract
Water-reducible curing agents for epoxy resins are made from the diglycidyl ether of cyclohexane dimethanol and a diamine selected from the group consisting of meta-xylylene diamine, isophorone diamine, diaminocyclohexane and 1,3-bisaminomethyl cyclohexane.
Claims6
A curing agent for epoxy resins which comprises a water solution of a 1:2 molar epoxy-amine adduct of the diglycidyl ether of cyclohexane dimethanol and a diamine selected from the group consisting of meta-xylylene diamine, isophorone diamine, diaminocyclohexane and 1,3-bisaminomethyl cyclohexane, wherein said water solution includes essentially no cosolvent.
A process for preparing a curing agent for epoxy resins which comprises
- (a) reacting the diglycidyl ether of cyclohexane dimethanol with a molar excess of a diamine selected from the group consisting of meta-xylylene diamine, isophorone diamine, diaminocyclohexane and 1,3-bisaminomethyl cyclohexane to form a 1:2 epoxy-amine adduct,
- (b) removing any unreacted diamine, and
- (c) adding water to dissolve said epoxy-amine adduct thereby forming a water solution of said adduct which includes essentially no cosolvent.
Dependencies are inferred from the claim text.