Patents by Inventor Xavier Crozes

Xavier Crozes 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).

  • Sol-gel method for producing an anti-corrosion coating on a metal substrate
    Patent number: 11519072
    Abstract: A sol-gel method for producing an anti-corrosion coating consisting of at least one layer of an oxide on a metal substrate. A non-aqueous solution of a precursor of the oxide is prepared and deposited on one surface at least of the metal substrate in order to cover said surface at least partially with a film comprising the precursor of the oxide. Hydrolysis-condensation of the precursor of the oxide is carried out by exposing the film to a humid atmosphere in order to form an oxide network in the film. Then, a treatment for stabilizing the film on the surface of the substrate is carried out, followed by a heat treatment of the surface of the metal substrate in order to crystallize the network of oxide and form the anti-corrosion coating.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: December 6, 2022
    Assignees: ELECTRICITE DE FRANCE, SORBONNE UNIVERSITE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—, COLLEGE DE FRANCE
    Inventors: Adele Astorg, Xavier Crozes, Lionel Nicole, Clement Sanchez
  • SOL-GEL METHOD FOR PRODUCING AN ANTI-CORROSION COATING ON A METAL SUBSTRATE
    Publication number: 20190338423
    Abstract: A sol-gel method for producing an anti-corrosion coating consisting of at least one layer of an oxide on a metal substrate. A non-aqueous solution of a precursor of the oxide is prepared and deposited on one surface at least of the metal substrate in order to cover said surface at least partially with a film comprising the precursor of the oxide. Hydrolysis-condensation of the precursor of the oxide is carried out by exposing the film to a humid atmosphere in order to form an oxide network in the film. Then, a treatment for stabilizing the film on the surface of the substrate is carried out, followed by a heat treatment of the surface of the metal substrate in order to crystallize the network of oxide and form the anti-corrosion coating.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 7, 2019
    Applicants: ELECTRICITE DE FRANCE, UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE- CNRS-, COLLEGE DE FRANCE
    Inventors: Adele Astorg, Xavier Crozes, Lionel Nicole, Clement Sanchez
  • ANTI-CORROSION TREATMENT OF A METAL SUBSTRATE AND RESULTING SUBSTRATE
    Publication number: 20160312364
    Abstract: A method of treating a metal substrate with an anti-corrosion coating comprising at least the following steps: preparing a solution comprising particles of a precursor of the oxide, dipping at least one surface of the metal substrate into the prepared solution and then removing it from the solution, heat treating the surface of the metal substrate in order to generate oxide nanocrystals from the particles of the precursor and form the anti-corrosion coating, and forming a natural oxide layer between the metal substrate and the anti-corrosion coating, the natural oxide layer being enriched with elements from the oxide nanocrystals of the anti-corrosion coating.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 27, 2016
    Applicant: ELECTRICITE DE FRANCE
    Inventors: Xavier Crozes, Didier Noel, Julie Monget, Abdelhafed Taleb, Michel Cassir