Patents by Inventor Jerry D. Stark

Jerry D. Stark 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).

  • Ethylene polymers and copolymers with high optical opacity
    Patent number: 7094857
    Abstract: This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/?-olefin copolymers formed in the presence of tightly-bridged metallocene catalyst, organoaluminum cocatalyst, and a chemically-treated solid oxide, and optionally in the presence of additional cocatalysts. The resins and films prepared from these polymers exhibit high haze values, low clarity values, and a low coefficient of friction.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: August 22, 2006
    Assignee: Chevron Phillips Chemical Company, L.P.
    Inventors: Ashish M. Sukhadia, Jerry D. Stark, Max P. McDaniel, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Rajendra K. Krishnaswamy