Patents by Inventor Darryl W. Kinzer

Darryl W. Kinzer 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).

  • Process for manufacturing amides
    Patent number: 4921992
    Abstract: Amide compounds useful as additives in lubricating fluids as extreme pressure/antiwear agents are produced on a manufacturing scale. The amides are produced by simultaneously adding together and reacting a phosphorus-containing acid and aqueous acrylamide. Substantially equal molar amounts of the phosphorus-containing acid and the aqueous acrylamide are added together with sufficient cooling to maintain the reaction at a temperature below 50.degree. C. After isolation, the reaction product obtained is preferably further reacted with a coupling agent, preferably paraformaldehyde.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: May 1, 1990
    Assignee: The Lubrizol Corporation
    Inventors: Paul E. Adams, Darryl W. Kinzer
  • Process for manufacturing amides
    Patent number: 4876374
    Abstract: Amide compounds useful as additives in lubricating fluids as extreme pressure/antiwear agents are produced on a manufacturing scale. The amides are produced by simultaneously adding together and reacting a phosphorus-containing acid and aqueous acrylamide. Substantially equal molar amounts of the phosphorus-containing acid and the aqueous acrylamide are added together with sufficient cooling to maintain the reaction at a temperature below 50.degree. C. After insolation, the reaction product obtained is preferably further reacted with a coupling agent, preferably paraformaldehyde.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: October 24, 1989
    Assignee: The Lubrizol Corporation
    Inventors: Paul E. Adams, Darryl W. Kinzer