Patents by Inventor Lin Hin Hoo

Lin Hin Hoo 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).

  • Transparent polyurethane compositions
    Patent number: 6458875
    Abstract: The present invention is embodied in a polyurethane composition suitable for coating, casting or laminating, which incorporates a prescribed additive selected to increase the composition's electrical conductivity without adversely affecting the composition's transparency and percent haze and without adversely affecting its adhesion to an underlying substrate or its environmental durability, especially with regard to humidity resistance. The prescribed additive is an ionizable metal salt of a perfluoroalkylsulfonimide, in a weight percent of 0.5 to 5.0, with the metal being an alkali metal and the preferred perfluoroalkylsulfonimide being trifluoromethanesulfonimide. The most preferred salt is lithium trifluoromethanesulfonimide. The preferred polyurethanes include both aliphatic polyetherurethanes and aliphatic polyesterurethanes.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: October 1, 2002
    Assignee: Pilkington Aerospace Inc.
    Inventors: Stephen L. Sandlin, Lin Hin Hoo, Marlowe V. Moncur
  • Aircraft window
    Patent number: 6399205
    Abstract: The present invention is embodied in a polyurethane composition suitable for coating, casting or laminating, which incorporates a prescribed additive selected to increase the composition's electrical conductivity without adversely affecting the composition's transparency and percent haze and without adversely affecting its adhesion to an underlying substrate or its environmental durability, especially with regard to humidity resistance. The prescribed additive is an ionizable metal salt of a perfluoroalkylsulfonimide, in a weight percent of 0.5 to 5.0, with the metal being an alkali metal and the preferred perfluoroalkylsulfonimide being trifluoromethanesulfonimide. The most preferred salt is lithium trifluoromethanesulfonimide. The preferred polyurethane include both aliphatic polyetherurethanes and aliphatic polyesterurethanes.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: June 4, 2002
    Assignee: Pilkington Aerospace Inc.
    Inventors: Stephen L. Sandlin, Lin Hin Hoo, Marlowe V. Moncur
  • Coated transparencies and transparent laminates incorporating a transparent polyurethane composition
    Patent number: 6093451
    Abstract: The present invention is embodied in a polyurethane composition suitable for coating, casting or laminating, which incorporates a prescribed additive selected to increase the composition's electrical conductivity without adversely affecting the composition's transparency and percent haze and without adversely affecting its adhesion to an underlying substrate or its environmental durability, especially with regard to humidity resistance. The prescribed additive is an ionizable metal salt of a perfluoroalkylsulfonimide, in a weight percent of 0.5 to 5.0, with the metal being an alkali metal and the preferred perfluoroalkylsulfonimide being trifluoromethanesulfonimide. The most preferred salt is lithium trifluoromethanesulfonimide. The preferred polyurethanes include both aliphatic polyetherurethanes and aliphatic polyesterurethanes.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: July 25, 2000
    Assignee: Pilkington Aerospace Inc.
    Inventors: Stephen L. Sandlin, Lin Hin Hoo, Marlowe V. Moncur