Patents by Inventor John Guthrie Thompson

John Guthrie Thompson 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).

  • Blends of polycarbonate and polyester and sheets and films formed therefrom
    Patent number: 6569957
    Abstract: There is described a novel blend composition comprising specified amounts of any polycarbonate and specified amounts of a specific copolyester comprising terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or mixtures thereof; isophthalic acid; and 1,4-cyclohexanedimethanol. Also described are films and sheets produced from the novel blend compositions that are thermoformable without having to pre-dry the films and sheets. Further, articles of manufacture produced from the novel blend compositions are described.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: May 27, 2003
    Assignee: Eastman Chemical Company
    Inventors: James Carl Williams, John Guthrie Thompson, Roy Lee Conn
  • Blends of polycarbonate and polyester and sheets and films formed therefrom
    Publication number: 20020086953
    Abstract: There is described a novel blend composition comprising specified amounts of any polycarbonate and specified amounts of a specific copolyester comprising terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or mixtures thereof; isophthalic acid; and 1,4-cyclohexanedimethanol. Also described are films and sheets produced from the novel blend compositions that are thermoformable without having to pre-dry the films and sheets. Further, articles of manufacture produced from the novel blend compositions are described.
    Type: Application
    Filed: September 5, 2001
    Publication date: July 4, 2002
    Inventors: James Carl Williams, John Guthrie Thompson, Roy Lee Conn
  • Films and articles formed from blends of polycarbonate and polyester
    Publication number: 20020082360
    Abstract: There are described films and articles formed from blend compositions comprising specified amounts of any polycarbonate and specified amounts of a specific copolyester comprising terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or mixtures thereof; ethylene glycol; and 1,4-cyclohexanedimethanol. The films and sheets produced from the blend compositions are thermoformable without having to pre-dry the films and sheets. Further, articles of manufacture produced from the blend compositions are described.
    Type: Application
    Filed: September 5, 2001
    Publication date: June 27, 2002
    Inventors: Roy Lee Conn, John Guthrie Thompson, James Carl Williams