Patents by Inventor David J. Eickhoff

David J. Eickhoff 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).

  • Method of catalyzing oxygen-initiated free-radical polymerization and catalysts used therein
    Patent number: 4483967
    Abstract: A class of new oxygen-activated free-radical polymerization catalysts, comprising specifically-defined autoxidizable cyclic hydrocarbons together with cobalt(II) compounds, is disclosed. A method of catalyzing an oxygen-initiated free-radical polymerization reaction using these catalysts is also disclosed.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: November 20, 1984
    Assignee: The Procter & Gamble Company
    Inventors: David J. Eickhoff, Medford D. Robbins
  • Catalysts for oxygen-initiated free-radical polymerization reactions
    Patent number: 4395361
    Abstract: A class of new oxygen-activated free-radical polymerization catalysts, comprising specifically-defined autoxidizable cyclic hydrocarbons together with cobalt(II) compounds, is disclosed. A method of catalyzing an oxygen-initiated free-radical polymerization reaction using these catalysts is also disclosed.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: July 26, 1983
    Assignee: The Procter & Gamble Company
    Inventors: David J. Eickhoff, Medford D. Robbins