Patents by Inventor Emanuel Schoenberg

Emanuel Schoenberg 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).

  • Difunctional polymeric dienes
    Patent number: 4034000
    Abstract: This invention relates to a method of making polymeric materials having isocyanate reactive groups by polymerizing conjugated diolefins and other olefins with a lithium catalyst in the presence of an ether consisting of diethyl ether, dimethoxy ethane and tetrahydrofuran, then reacting the lithium polymeric adduct with a functionality imparting compound such as carbon dioxide, ethylene oxide, propylene oxide, aldehydes, ketones and carbon disulfide.
    Type: Grant
    Filed: July 1, 1970
    Date of Patent: July 5, 1977
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Emanuel Schoenberg
  • Processing method for synthetic rubbers
    Patent number: 3970724
    Abstract: A method of preparing synthetic rubbers having improved green strength and improved processing characteristics wherein a portion of the monomer is contacted with a catalyst imparting a cis-1,4 configuration and subsequently contacting the remaining portion of the monomer with a catalyst capable of imparting a trans-1,4 configuration.
    Type: Grant
    Filed: September 27, 1973
    Date of Patent: July 20, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Emanuel Schoenberg, Thomas L. Hanlon