Patents by Inventor Tien-Szu Hsieh

Tien-Szu Hsieh 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 fiber scouring with supercritical carbon dioxide
    Patent number: 6183521
    Abstract: A method of removing spinning and finishing oils from fibers using supercritical carbon dioxide as an extraction media is provided. This process using carbon dioxide to remove oils from fiber surface operates at moderate pressures between 90 and 350 bar and at temperature levels ranghng from 40 to 120° C. The treated fibers have improved strength and elongation properties compared to those treated by conventional scouring. The treated fibers can be directly subjected to the subsequent dyeing processing.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: February 6, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Fa Lin, Chi-Ying Hung, Jing-Wen Tang, Tien-Szu Hsieh