Water-emulsifiable epoxy resin composition

U.S. Patent Number: 5344856

Abstract: The invention is a water dispersible epoxy resin composition comprising: (A) the reaction product of; (i) one or more polyepoxides; (ii) optionally, one or more poly(aromatic hydroxy) containing compounds, (iii) optionally, one or more chain terminators; and (iv) one or more nominally difunctional C.sub.12-36 fatty acids or a dimer of an unsaturated, fatty acid, and B) a sufficient amount of a surfactant to form a stable dispersion of the epoxy resin in water wherein the surfactant comprises an alkyl aryloxy poly(propyleneoxy) poly(ethyleneoxy) ethanol, a C.sub.12-36 hydrocarbyloxy poly(propyleneoxy) poly(ethyleneoxy) ethanol or a C.sub.12-36 hydrocarbylcarboxyloxy poly(propyleneoxy) poly(ethyleneoxy) ethanol. In another aspect the invention is a high solid aqueous emulsion of such epoxy resin reaction product and surfactant. In yet another aspect, the invention is a coating composition comprising an aqueous emulsion containing the hereinbefore describe epoxy resin coating composition, and a water-soluble dispersible, or emulsifiable curing agent or hardener for such epoxy resin composition.

Inventors: Klein; Dieter H. (Rheinmuenster, DE)

Assignee: The Dow Chemical Company (Midland, MI)

Application Number: 08/063,253

Issued: 1994-09-06

Expired: 2006-09-06

Classes: 523/403 ; 427/386; 428/413; 523/404

Field of search: 523/415,403,404 427/386 428/413

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