Patents by Inventor Philippe Barthes

Philippe Barthes 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).

  • Composite material composed of a metal matrix and of talc
    Patent number: 7659008
    Abstract: The invention relates to a lubricating metal coating and to a process for its preparation. The material constituting the coating in a composite material comprising a metal matrix within which talc particles are distributed as lamellae, the metal matrix being composed of a metal chosen from Fe, Co, Ni, Mn, Cr, Cu, W, Mo, Zn, Au, Ag, Pb or Sn or of an alloy of these metals or of a metal/semimetal alloy. The coating is obtained by a process consisting in carrying out an electrolytic deposition using a solution of precursors of the metal matrix of the coating which additionally comprises talc particles in suspension, which particles are modified at the surface by irreversible adsorption of a cellulose-derived compound by replacement of all or part of the hydroxyl groups.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: February 9, 2010
    Assignee: Centre National de la Recherche Scientifique
    Inventors: François Martin, Jean-Pierre Bonino, Patrice Bacchin, Stéphane Vaillant, Eric Ferrage, William Vautrin, Philippe Barthes
  • Composite material composed of a metal matrix and of talc
    Publication number: 20060162655
    Abstract: The invention relates to a lubricating metal coating and to a process for its preparation. The material constituting the coating in a composite material comprising a metal matrix within which talc particles are distributed as lamellae, the metal matrix being composed of a metal chosen from Fe, Co, Ni, Mn, Cr, Cu, W, Mo, Zn, Au, Ag, Pb or Sn or of an alloy of these metals or of a metal/semimetal alloy. The coating is obtained by a process consisting in carrying out an electrolytic deposition using a solution of precursors of the metal matrix of the coating which additionally comprises talc particles in suspension, which particles are modified at the surface by irreversible adsorption of a cellulose-derived compound by replacement of all or part of the hydroxyl groups.
    Type: Application
    Filed: December 8, 2003
    Publication date: July 27, 2006
    Applicant: CENTRE NATIONAL DE LA RECHERCHE
    Inventors: Francois Martin, Jean-Pierre Bonino, Patrice Bacchin, Stephane Vaillant, Eric Ferrage, William Vautrin, Philippe Barthes