Patents by Inventor Lawrence George Kaufman

Lawrence George Kaufman 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).

  • Thermoplastic olefin compositions
    Patent number: 6245856
    Abstract: The invention relates to novel Thermoplastic Olefin compositions comprising polypropylene, and ethylene-alpha olefin elastomer and a compatabilizer comprising an ethylene-propylene copolymer having a propylene content of greater than 80 weight percent. The ethylene-propylene copolymer compatabilizer imparts a greater degree of compatibility between the polypropylene and elastomer phases yielding improved physical properties.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: June 12, 2001
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Lawrence George Kaufman, Charles Cozewith, Avinash Chandrakant Gadkari, Narayanaswami Raja Dharmarajan, Maria Dolores Ellul
  • Calendered elastomeric articles
    Patent number: 5654370
    Abstract: Ethylene, alpha-olefin, non-conjugated bicyclic diene elastomeric polymers and/or polymer blends when compounded and formed into a calendered sheet, show surprising improvements for the combination in both green strength and peel adhesion in the unvulcanized state. Such green strength and peel adhesion provide benefits during calendering operations and subsequent joining of calendered sheets, while the compounded elastomeric polymers are in their green or unvulcanized state.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: August 5, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Sudhin Datta, Periagaram S. Ravishankar, Lawrence George Kaufman