Patents by Inventor Joseph K. Kiang

Joseph K. Kiang 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).

  • Method of producing high strength fibers
    Patent number: 4853164
    Abstract: High strength fibers of polymeric material and having outstanding tensile strength, Young's modulus values, and creep resistance are prepared by treating a fiber from a polymeric material, which may contain a crosslinking promoter, by (a) crosslinking the polymeric material; (b) heating the fiber to a temperature, T.sub.1, which (i) in the event the polymer is amorphous, is above the glass transition temperature (Tg) of the polymer and, (ii) in the event the polymer is crystalline, is above the second order transition temperature, T.sub..alpha..sbsb.c, and below the crystalline melting temperature (Tm) of the polymer; (c) drawing the fiber to a draw ratio of at least about 2 at a rate of at least about 200% per minute and (d) cooling the fiber.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: August 1, 1989
    Assignee: Raychem Corporation
    Inventors: Joseph K. Kiang, Patrick K. C. Tsou, Christine E. Vogdes
  • Method of making high strength polyethylene fiber
    Patent number: 4778633
    Abstract: High strength fibers of a polymeric material and having outstanding tensile strength, Young's modulus values, and creep resistance are prepared by treating a fiber from a polymeric material, which may contain a crosslinking promoter, by (a) crosslinking the polymeric material; (b) heating the fiber to a temperature, T.sub.1, which (i) in the event the polymer is amorphous, is above the glass transition temperature (Tg) of the polymer and, (ii) in the event the polymer is crystalline, is above the second order transition temperature, T.sub..alpha..sbsb.c, and below the crystalline melting temperature (Tm) of the polymer; (c) drawing the fiber to a draw ratio of at least about 2 at a rate of at least about 200% per minute and (d) cooling the fiber.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: October 18, 1988
    Assignee: Raychem Corporation
    Inventors: Joseph K. Kiang, Patrick K. C. Tsou, Christine E. Vogdes