Patents by Inventor Georges Lacote

Georges Lacote 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).

  • Synthesis of perfluoroalkyl iodides
    Patent number: 5650545
    Abstract: The invention relates to a continuous process for the preparation of perfluoroalkyl iodides by thermal telomerization, in the gas phase, of tetrafluoroethylene with pentafluoroethyl iodide or heptafluoroisopropyl iodide in a tubular reactor.To improve the selectivity for a telomer of the desired extent, the telomers of lesser extent are recycled to at least one point in the reactor, which is situated between one-twentieth and three-quarters the length of the tube.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 22, 1997
    Assignee: Elf Atochem S.A.
    Inventors: Rene Bertocchio, Patrick Lambert, Georges Lacote
  • Synthesis of perfluoroalkyl iodides
    Patent number: 5268516
    Abstract: The invention relates to a continuous process for the preparation of perfluoroalkyl iodides containing from 4 to 12 carbon atoms by thermal telomerization of tetrafluoroethylene by pentafluoroethyl iodide or heptafluoroisopropyl iodide in a tubular reactor.According to the invention, 30 to 75% of the tetrafluoroethylene is supplied at the head of the reactor; the remainder is introduced at a point in the reactor located between the 2/5 and 3/4 of the length of the tube.The proportion of undesirable heavy telomers is reduced in this way.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: December 7, 1993
    Assignee: Elf Atochem S.A.
    Inventors: Rene Bertocchio, Georges Lacote, Christophe Verge