Patents by Inventor Anne Christmann

Anne Christmann 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).

  • Method of preparing a transparent polymer material comprising a thermoplastic polycarbonate and surface-modified mineral nanoparticles
    Patent number: 9163125
    Abstract: A method of preparing a transparent polymer material includes i) obtaining composite nanoparticles having mineral nanoparticles at least partially coated with at least one monomer and/or at least one polymer suitable for promoting physicochemical interactions at the interface between the mineral nanoparticles and a thermoplastic polycarbonate matrix, the mineral nanoparticles being surface-modified by the monomer and/or the polymer, either directly by grafting or directly by adsorption of the monomer and/or polymer onto the surface of the mineral nanoparticles; or via a coupling agent selected from a chlorosilane or an organosilane including a functional group that is capable of reacting by a radical pathway. The composite nanoparticles obtained in step i) are mixed with the thermoplastic polycarbonate matrix in the molten state to obtain the transparent polymer material.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: October 20, 2015
    Assignees: ARMINES, ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), SOLVAY SA
    Inventors: Anne Christmann, Jean-Francois Hochepied, Jose-Marie Lopez-Cuesta, Laure Meynie, Alexandra Roos, Nathalie Cornet, Karine Cavalier, Didier Sy, Marc Lacroix
  • METHOD OF PREPARING A TRANSPARENT POLYMER MATERIAL COMPRISING A THERMOPLASTIC POLYCARBONATE AND SURFACE-MODIFIED MINERAL NANOPARTICLES
    Publication number: 20110034585
    Abstract: A method of preparing a transparent polymer material includes i) obtaining composite nanoparticles having mineral nanoparticles at least partially coated with at least one monomer and/or at least one polymer suitable for promoting physicochemical interactions at the interface between the mineral nanoparticles and a thermoplastic polycarbonate matrix, the mineral nanoparticles being surface-modified by the monomer and/or the polymer, either directly by grafting or directly by adsorption of the monomer and/or polymer onto the surface of the mineral nanoparticles; or via a coupling agent selected from a chlorosilane or an organosilane including a functional group that is capable of reacting by a radical pathway. The composite nanoparticles obtained in step i) are mixed with the thermoplastic polycarbonate matrix in the molten state to obtain the transparent polymer material.
    Type: Application
    Filed: December 9, 2008
    Publication date: February 10, 2011
    Inventors: Anne Christmann, Jean-Francois Hochepied, Jose-Marie Lopez-Cuesta, Laure Meynie, Alexandra Roos, Nathalie Cornet, Karine Cavalier, Didier Sy, Marc Lacroix
  • Hair dryer
    Patent number: D1025472
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: April 30, 2024
    Assignee: Dyson Technology Limited
    Inventors: Simon Brian McNamee, Edward Sebert Maurice Shelton, Clément Bernard Christmann, Wee Guan Tan, Bun Tiong Chua, Min Yu Nicole Chian, Paul Thomas Brittell, Be Seng Lok, Gerald Eng, Stephen Benjamin Courtney, Peter David Gammack, Leanne Joyce Garner, Laura Anne Howard
  • Hair dryer
    Patent number: D1025473
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: April 30, 2024
    Assignee: Dyson Technology Limited
    Inventors: Simon Brian McNamee, Edward Sebert Maurice Shelton, Clément Bernard Christmann, Wee Guan Tan, Bun Tiong Chua, Min Yu Nicole Chian, Paul Thomas Brittell, Be Seng Lok, Gerald Eng, Stephen Benjamin Courtney, Peter David Gammack, Leanne Joyce Garner, Laura Anne Howard