Patents by Inventor David E. Sasser

David E. Sasser 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).

  • Process for the distillative purification of citral
    Patent number: 5094720
    Abstract: A method is disclosed for enhancing the purification of citral by fractional distillation by inhibiting the formation of isocitrals from isomerization of citral during the distillation process. The method involves reducing the pH of a mixture containing citral to inhibit the formation of isocitrals from citral upon heating, such as in distillation. Lowering the pH below 7 reduces formation of isocitrals, but a pH of about 4 to 5 is especially preferred. Most preferably, this pH adjustment is accomplished by addition of an acid with a pKa between about 4 and 5.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: March 10, 1992
    Assignee: Union Camp Corporation
    Inventor: David E. Sasser
  • Isomerization of linalyl halides with quaternary salts
    Patent number: 4761507
    Abstract: A method for the isomerization of linalyl halides is disclosed, improved by the presence of an organic quaternary salt. The improved method of the invention requires less energy for completion of the isomerization and shortens the isomerization times.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: August 2, 1988
    Assignee: Union Camp Corporation
    Inventors: Peter W. D. Mitchell, Lois T. McElligott, David E. Sasser
  • Hydrohalogenation of myrcene
    Patent number: 4704485
    Abstract: The disclosure is of an improved process for the hydrohalogenation of a conjugated diene in the presence of a catalyst, which comprises carrying out the hydrohalogenation in the presence of an organic quaternary salt.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: November 3, 1987
    Assignee: Union Camp Corporation
    Inventors: Peter W. D. Mitchell, Lois T. McElligott, David E. Sasser