Patents by Inventor Lucy Ka Po Wan-Cheng

Lucy Ka Po Wan-Cheng 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).

  • Intrinsically conductive polymer blends having a low percolation threshold
    Patent number: 5908898
    Abstract: Electrically conductive polymer blends are produced from an insulating thermoplastic polymer phase and a conductivity enhancing composition that forms a continuous conductive phase and includes an intrinsically conductive polymer salt that is incompatible with the thermoplastic polymer, a thermoplastic conductive phase polymer and a plasticizer that is capable of compatibilizing the conductive phase polymer and the intrinsically conductive polymer salt. The intrinsically conductive polymer salt is concentrated in the continuous conductive phase Methods are also provided for the preparation of these conductive polymer blends.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: June 1, 1999
    Assignee: Monsanto Company
    Inventors: Lucy Ka Po Wan-Cheng, Lawrence W. Shacklette, Chien-Chung Han