Patents by Inventor Glen R. Gribble, Jr.

Glen R. Gribble, Jr. 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).

  • Modified polycycloolefins
    Patent number: 5438093
    Abstract: Solution and RIM polymerization of cycloolefins containing at least one norbornene moiety is carried out in the presence of a methathesis catalyst system and an activator, particularly a chlorosilane activator, to obtain faster reaction with higher conversions at lower mold temperatures. The methathesis catalyst system includes an organoammonium molybdate or tungstate catalyst and an alkylaluminum or an alkylaluminum halide cocatalyst. The chlorosilane activator is used at a level of 0.05 to 10 millimoles per mole of the cycloolefin monomers. The polymers of cycloolefins can be impact modified and/or flame-retarded.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: August 1, 1995
    Assignee: B. F. Goodrich Company
    Inventors: Paul T. Stricharczuk, Robert J. Minchak, Timothy J. Kettering, Dennis J. Janda, Glen R. Gribble, Jr.