Patents Examined by Kark Group
  • Glass sheet designed to be heat tempered
    Patent number: 7153798
    Abstract: The subject of the invention is a glass sheet intended to be thermally toughened, the matrix of which is of the silica-soda-lime type, having an expansion coefficient ? of greater than 100×10?7 K?1, a Young's modulus E of greater than 60 GPa and a thermal conductivity k of less than 0.9 W/m.K.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: December 26, 2006
    Assignee: Saint-Gobain Glass France
    Inventors: Frederic Bordeaux, Lucas Duffrene