Patents by Inventor Edward F. Tokas

Edward F. Tokas 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).

  • Myrcene as an acrylonitrile scavenger
    Patent number: 4221878
    Abstract: A process of reducing free acrylonitrile monomer in nitrile polymers during conversion to melt form which involves having an effective amount of an acrylonitrile scavenger such as myrcene in admixture with the polymer during melting. Shaped products such as preforms, containers, film, sheet, etc., formed from such melt are well suited for packaging food, beverages, pharmaceuticals, cosmetics, etc., in that residual acrylonitrile monomer in the walls of such products is minimal.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: September 9, 1980
    Assignee: Monsanto Company
    Inventor: Edward F. Tokas
  • Molding compositions and process for preparing same
    Patent number: 4215024
    Abstract: Improved molding compositions and a dry blend process for preparing same, such compositions being especially adapted for shaping into packaging materials, and comprising a blend of a nitrile polymer and an unsaturated fatty acid compound.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: July 29, 1980
    Assignee: Monsanto Company
    Inventors: I. Luis Gomez, Edward F. Tokas
  • Molding compositions and process for preparing same
    Patent number: 4180486
    Abstract: Improved molding compositions and a dry blend process for preparing same, such compositions being especially adapted for fabrication into packaging materials and comprising an intimate blend of a styrene polymer and myrcene compound.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: December 25, 1979
    Assignee: Monsanto Company
    Inventor: Edward F. Tokas