Patents by Inventor Sandra Ann Kushner

Sandra Ann Kushner 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).

  • Polyurea elastomeric microcellular foam
    Patent number: 6020392
    Abstract: A method for making a polyurea microcellular elastomeric foam by reacting an organic polyisocyanate with a di-(aminobenzoate) ester of an oligomeric polyol in the presence of a blowing agent and, optionally, urethane catalyst and cell stabilizing agent.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: February 1, 2000
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Sandra Ann Kushner, John William Miller, James Douglas Tobias