Patents by Inventor Reginald D. O. Evans

Reginald D. O. Evans 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).

  • Fatty acid halogenide manufacture
    Patent number: 5247105
    Abstract: The invention provides a process for preparing fatty acid halide by reacting a fatty acid with a halogenating agent optionally followed by hydrolysis of unreacted halogenating agent and separating the fatty acid halide upper layer from the inorganic lower layer characterized in that a fatty acid nitrogen derivative, preferably a fatty amide has been incorporated in the reaction mixture. Preferably the fatty acid is a saturated or unsaturated C.sub.6 to C.sub.24 fatty acid and the halogenating agent a phosphorus halide, especially phosphorus trichloride.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: September 21, 1993
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Reginald D. O. Evans, Raymond Jennings
  • Dewaxing with a polymerized polyol ester dewaxing aid
    Patent number: 4105539
    Abstract: A process for de-waxing oil comprises dissolving a polymerized polyol ester blend in a waxy oil, optionally with a solvent or diluent and cooling to crystallize out the wax using acids in the C.sub.8 to C.sub.24 range to form the esters.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: August 8, 1978
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Hans Borst, Reginald D. O. Evans, John A. Rand