Patents by Inventor Donald F. Thompson

Donald F. Thompson 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 for dispersing an additive into a thermoplastic resin
    Patent number: 4178421
    Abstract: An improved method for dispersing an additive into a thermoplastic resin comprising: (1) thoroughly mixing an aqueous solution of said additive with said thermoplastic resin; (2) applying both sufficient heat and shear to rapidly volatilize said aqueous solvent and to form a molten flux of said thermoplastic resin and said additive; and (3) recovering said thermoplastic resin with said additive dispersed therein.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: December 11, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Donald F. Thompson, Joseph M. Mizenko, Elmer Sivak
  • Polypropylene/pelargonate divalent metal salt
    Patent number: 4075147
    Abstract: Composition comprising resinous polymer of propylene and divalent metal salt of pelargonic acid.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: February 21, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Donald F. Thompson