Patents by Inventor Philippe Corbiere

Philippe Corbiere 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).

  • Continuous process for the preparation of pivaloyl chloride and of aroyl chloride
    Patent number: 6605743
    Abstract: The invention relates to a continuous process for the preparation of pivaloyl chloride and of aroyl chloride, in particular of benzoyl chloride, which consists in reacting pivalic acid with a trichloromethylated aromatic compound in the presence of a catalyst at a temperature of between 60° C. and 180° C. under reduced pressure. The products formed are continuously removed from the reaction region, the hydrogen chloride formed being treated in a washing region in which a trichloromethylated compound moves countercurrentwise.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: August 12, 2003
    Assignee: Elf Atochem S.A.
    Inventors: Christophe Ruppin, Philippe Corbiere