Patents by Inventor Yann Jyh Huang

Yann Jyh Huang 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).

  • Process for producing polyester fiber having improved dyeability, elongation and strength, and polyester fiber therefrom
    Patent number: 5916677
    Abstract: This invention relates to a process for producing polyester fibers with enhanced dyeability, lesser elongation and greater strength, which comprises combining 2-methyl-1,3-propanediol into a mixture containing terephthalic acid, or an alkyl ester thereof, and a (C.sub.2-6)alkanediol, and carrying out polymerization. The resultant polyester copolymer is then spun to produce polyester fibers. This invention also relates to the polyester fibers produced by this process. These polyester fibers exhibit enhanced dyeability, lesser elongation and greater strength than un-improved polyester fibers.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: June 29, 1999
    Assignee: Dairen Chemical Corporation
    Inventors: Shien Chang Chen, Fu Shen Lin, June-Yen Chou, Hsing Yun Wang, Mao Song Lee, Mei-Sui Chen, Yann Jyh Huang, Hung Shu Sun