Patents by Inventor Georges Desarmot

Georges Desarmot 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).

  • Electrochemical method of surface treating carbon; carbon, in particular carbon fibers, treated by the method, and composite material including such fibers
    Patent number: 4844781
    Abstract: The method is of the type in which carbon (3) is put into contact with a solution (2) of an amine compound in a bipolar solvent with the carbon being positively polarized relative to a cathode (5). According to the invention, the solvent is an organic compound, preferably an aprotic compound, having a high anode oxidation potential, and the solution is practically free from water.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: July 4, 1989
    Assignee: Office National D'Etudes et de Recherches Aerospatiales
    Inventors: Manuel Sanchez, Georges Desarmot, Blandine Barbier
  • Method of electrochemically surface treating carbon fibers, fibers treated by the method, and composite materials including such fibers
    Patent number: 4690738
    Abstract: A method of electrochemically surface-treating carbon fibers, fibers treated by the method, and composite materials including such fibers. The method consists in positively polarizing fibers relative to a cathode in an aqueous solution of an electrolyte constituted by a weak amino base. Nitrogen-containing groups are thus fixed to the surface of the fibers thereby improving the adhesion of the fibers to the resin in a composite material constituted by carbon fibers embedded in a synthetic resin matrix.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: September 1, 1987
    Assignee: Office National d'Etudes et de Recherches Aerospatiales
    Inventors: Georges Desarmot, Manuel Sanchez