Patents by Inventor Patrick C. Bigot

Patrick C. Bigot 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 producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization
    Patent number: 6057487
    Abstract: A method is disclosed to produce 2,6-dimethylnaphthalene (2,6-DMN), used for the production of polyethylene naphthalate, at high purity and high yield from a mixture of dimethylnaphthalene isomers without limitation to the specific isomers present in the feed by a series of fractionation, crystallization and adsorption steps.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: May 2, 2000
    Assignee: Chevron Chemical Company
    Inventors: Curtis L. Munson, Patrick C. Bigot, Zunqing Alice He