Patents by Inventor George R. Cotten

George R. Cotten 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).

  • Stabilized polypropylene compositions
    Patent number: 4391941
    Abstract: This disclosure relates to the use of certain heat-treated carbon blacks as stabilizers against the effects of degradation caused by visible and ultraviolet light in the preparation of polypropylene resin compositions containing conventional antioxidants which impart thermal stability to the polypropylene resin.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: July 5, 1983
    Assignee: Cabot Corporation
    Inventors: George R. Cotten, Avrom I. Medalia