Stable aqueous epoxy dispersions
Patent 4315044 Issued on February 9, 1982. Estimated Expiration Date: 
November 5, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 5, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 06/204101 filed on 11/05/1980US Classes:427/386, Epoxy or polyepoxide containing coating427/388.4, Water-containing coating (i.e., aqueous dispersion, emulsion, or solution)523/402, Product contains water per se or water of hydration as designated nonreactive material (DNRM)523/403Two or more polymers containing more than one 1,2-epoxy group, two or more polymers derived from reactants containing more than one 1,2-epoxy group, or combination thereof, or one of said polymers and a reactant containing at least one 1,2-epoxy groupExaminersPrimary: Pertilla, Theodore E.Attorney, Agent or FirmInternational ClassesC08J 3/05 (20060101)C08J 3/02 (20060101) C08G 59/00 (20060101) C08G 59/06 (20060101) C08G 59/14 (20060101) C09D 163/00 (20060101) C08G 59/22 (20060101) AbstractStable epoxy dispersion compositions are prepared by emulsifying in water a self-emulsifying epoxy resin film forming component which is the reaction product of (a) a diglycidyl ether of a dihydric phenol, (b) a dihydric phenol and (c) a diglycidyl ether of a polyoxyalkylene glycol. The stable dispersions can be modified by the addition of an aliphatic monoepoxide reactive diluent to the dispersion. The epoxy dispersion compositions when combined with epoxy resin curing agents are useful as coating compositions. | |
