Patents by Inventor Charles William Tullock

Charles William Tullock 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).

  • Oxidative fluorination of phenols
    Patent number: 4020112
    Abstract: Phenols are oxidatively fluorinated by reaction with sulfur tetrafluoride in hydrogen fluoride solution at about 0.degree. to 250.degree. C. to form products which are useful as solvents and/or plasticizers for polymers. The novel products of this process include 1-fluoro-2-hydro-2,5-cyclohexadienes of the structure ##STR1## WHERE A AND B ARE FLUORINE, OR TOGETHER ARE CARBONYL OXYGEN,c and f, alike or different, are chlorine, bromine, CF.sub.3 or SO.sub.2 F,e is hydrogen, chlorine or SO.sub.2 F, andd is chlorine or fluorine, ore and f together are 1,3-butadien-1,4-diyl;And 1,1,3,5-tetrafluoro-2,4,6-trihalo-4-(3,5-difluoro-2,4,6-trihalophenoxy)-2, 5-cyclohexadienes of the structure ##STR2## WHERE S, T AND U, ALIKE OR DIFFERENT, ARE CHLORINE, BROMINE OR FLUORINE.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: April 26, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George Albert Boswell, Jr., Charles William Tullock