Patents by Inventor Maneung Hahn

Maneung Hahn 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).

  • Flame retardant copolyester adhesive
    Patent number: 4185046
    Abstract: Substrates such as polyethylene terephthalate copolymers are treated with polyester adhesives containing flame retardant polymers. The adhesive/polyethylene terephthalate composite possesses improved resistance to combustion.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: January 22, 1980
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Brian W. Pengilly, Maneung Hahn
  • Polyesters having improved disperse dyeability
    Patent number: 3937755
    Abstract: Polyethylene terephthalate block copolyesters having ethylene terephthalate blocks and hydantoin polymer blocks for improved disperse dyeability and improved antistatic properties. The copolyesters are prepared by conventional methods using blocks of low molecular weight polyethylene terephthalate and hydantoin polyester.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: February 10, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Maneung Hahn, Leroy C. T. Lin, William C. T. Tung
  • Acid dyeable polyesters
    Patent number: 3937753
    Abstract: The invention relates to polyester resin modified with hydantoin diacid or hydantoin diol and cyclohexyl diethanolamine. The copolyesters are dyeable with acid type dyes to form brightly colored fibers and fabrics.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: February 10, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Maneung Hahn, Leroy C. T. Lin, William C. T. Tung