Patents by Inventor Lester H. Mclntosh, III

Lester H. Mclntosh, III 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).

  • Mold addition polymerization of norbornene-type monomers using group 10 metal complexes
    Patent number: 6936672
    Abstract: A catalyst system and a process for the bulk addition polymerization or of polycyclic olefins, such as norbornene, methylnorbornene, ethylnorbornene, butylnorbornene or hexylnorbornene, 1,2,3,4,4a,5,8,8a-octahydro-1,4:5,8-dimethanonapthalene, 5,5?-(1,2-ethanediyl)bisbicyclo[2.2.1]hept-2-ene, and 1,4,4a,4b,5,8,8a,8b-octahydro-1,4:5,8-dimethanobiphenylene are disclosed. The catalyst includes an organonickel or organopalladium transition metal procatalyst and an activator compound. Polymerization can be carried out in a reaction injection molding process to yield thermoplastic and thermoset molded polymeric articles possessing high glass transition temperatures.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 30, 2005
    Assignee: Sumitomo Bakelite Co., Ltd.
    Inventors: Andrew Bell, Larry F. Rhodes, Brian L. Goodall, John C. Fondran, Lester H. Mclntosh, III, Dennis A. Barnes