Patents by Inventor Jacques Brivet

Jacques Brivet 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).

  • Pentenoic acid hydroxycarbonylation method
    Patent number: 6372942
    Abstract: The invention discloses pentenoic acid hydroxycarbonylation into adipic acid. More particularly, it concerns one pentenoic acid hydroxycarbonylation method involving reaction water and carbon monoxide, in the presence of a catalyst comprising at least rhodium and/or iridium and an iodinated or brominated catalytic promoter. In the method, the catalyst is derived at least in part from a previous pentenoic acid hydroxycarbonylation operation. The reaction is effected in the presence of an amount of branched carboxylic diacids having 6 carbon atoms not exceeding 200 grams per kilogram reaction mixture.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: April 16, 2002
    Assignee: Rhodia Fiber & Resin Intermediates
    Inventors: Jacques Brivet, Eric B. Henriet, Carl Patois, Robert Perron