Patents by Inventor Hongyu Chen

Hongyu Chen 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).

  • Elastic, heat and moisture resistant bicomponent and biconstituent fibers
    Patent number: 7135228
    Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: November 14, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Ashish Sen, John Klier, Rajen M. Patel, Hongyu Chen, Thoi H. Ho
  • Fibers made from copolymers of ethylene/alpha-olefins
    Publication number: 20060199931
    Abstract: A fiber is obtainable from or comprises an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 7, 2006
    Applicant: Dow Global Technologies Inc.
    Inventors: Benjamin Poon, Yunwa Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen Chiu, Rajen Patel, Andy Chang, Antonios Doufas, Hong Peng
  • Fibers made from copolymers of propylene/alpha-olefins
    Publication number: 20060199006
    Abstract: A fiber is obtainable from or comprises a propylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 7, 2006
    Applicant: Dow Global Technologies Inc.
    Inventors: Benjamin Poon, Yunwa Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen Chiu, Rajen Patel, Andy Chang, Antonios Doufas, Hong Peng
  • Elastic, heat and moisture resistant bicomponent and biconstituent fibers
    Publication number: 20030055162
    Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.
    Type: Application
    Filed: July 15, 2002
    Publication date: March 20, 2003
    Inventors: Ashish Sen, John Klier, Rajen M. Patel, Hongyu Chen, Thoi H. Ho