Patents by Inventor Huang Tingchun

Huang Tingchun 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).

  • Fluoropolymer alloys
    Patent number: 4749752
    Abstract: Fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, the weight percentage of the former is 0.1-99.9% and the latter is 99.9-0.1% respectively. The processes for preparing the fluoropolymer alloys are dried powder co-mill or wetted powder co-mill. Using the fluoropolymer alloys of this invention various kinds of articles have been fabricated by melt compression or cold compaction and sintering. These articles show a great improvement in creep property and also a prolonged service life in comparison with those made from ordinary polytetrafluoroethylene.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: June 7, 1988
    Assignee: Shanghai Institute of Organic Chemistry Academia Sinica
    Inventors: Duan Youlu, Jin Shanrong, Huang Tingchun, Sun Jin, Yu Xinying