Patents by Inventor Paul R. Williams, Jr.

Paul R. Williams, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stable aqueous epoxy resin dispersions
    Patent number: 4608406
    Abstract: A stable aqueous epoxy resin dispersion, useful as a coating composition when cured, is made by dispersing in water the reaction product of a diglycidyl ether of a dihydric phenol, a dihydric phenol, a diglycidyl ether of a polyoxyalkylene glycol and an alkyl phenol-formaldehyde novolac resin.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: August 26, 1986
    Assignee: Celanese Corporation
    Inventors: Paul R. Williams, Jr., Russell V. Burt, Ronald Golden