Patents Assigned to Ashahi Glass Co. Ltd.
  • Patent number: 5529655
    Abstract: This invention relates to a laminated safety pane, comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film providing desirable surface properties. According to the invention, the pane is provided, on at least one zone of the polyurethane film, with a gluing prefilm compatible with a film of adhesive deposited later, this prefilm being deposited after an electrical treatment applied to at least the zone of the polyurethane film which is to receive the prefilm, this electrical treatment being chosen from among the treatments of the corona discharge type.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 25, 1996
    Assignees: Saint-Gobain Vitrage International, Ashahi Glass Co. Ltd.
    Inventors: Jean-Louis Bravet, Otto Jandeleit, Eiji Hirano, Seiichi Miyasaka