Patents by Inventor Jeffrey Stults

Jeffrey Stults 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).

  • Method for ether formation
    Patent number: 5475149
    Abstract: A process for the preparation of 4,4'-dinitro-2,2'-di(trifluoromethyl)diphenyl ether according to the equation ##STR1## where X is F, Cl, Br or I, where the inorganic base is selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, and alkali metal bicarbonates, in the presence of a catalytic quantity of a benzoate catalyst. 2,8-Dinitro-6,6,12,12,-tetrafluoro-6H,12H-dibenzo[b,f][1,5]dioxocin, the corresponding diamine and polyimides formed from the diamine are also disclosed.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: December 12, 1995
    Assignee: Occidental Chemical Corporation
    Inventors: Robert Buchanan, Jeffrey Stults, Henry C. Lin