Patents by Inventor Kevin F. Dunay

Kevin F. Dunay 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).

  • Color-stable polycarbonate composition and articles molded therefrom
    Patent number: 5484828
    Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 16, 1996
    Assignee: Bayer Corporation
    Inventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan
  • Color-stable polycarbonate composition and articles molded therefrom
    Patent number: RE37200
    Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Bayer Corporation
    Inventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan