Patents by Inventor Paul Richard Kaufman

Paul Richard 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).

  • Nitrile resins stabilized against discoloration and method for producing the same
    Patent number: 4112022
    Abstract: Nitrile resins, when coagulated from a latex emulsion with inorganic salts of Groups IIA metal ions and compounded with an acrylic acid derivative such as the acrylate of a polyol, an N-substituted acrylamide or a bisacrylamide, exhibit marked improvement in stability toward thermal discoloration.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: September 5, 1978
    Assignee: Borg-Warner Corporation
    Inventors: Bruce Arthur Marien, Paul Richard Kaufman
  • Stabilization of nitrile resins with half acid salts of maleic acid
    Patent number: 4100126
    Abstract: Nitrile resins, when coagulated with a latex emulsion with inorganic salts of Group IIA metal ions and compounded with a half acid salt of maleic acid, exhibit marked improvement in stability toward thermal discoloration.
    Type: Grant
    Filed: April 8, 1977
    Date of Patent: July 11, 1978
    Assignee: Borg-Warner Corporation
    Inventors: Gerald Goldberg, Paul Richard Kaufman