Patents by Inventor Allan H. Olson

Allan H. Olson 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).

  • Heat stable tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymers
    Patent number: 4599386
    Abstract: A tetrafluoroethylene-perfluoro(alkyl vinyl ether copolymer in which heat unstable carbinol end-groups (--CH.sub.2 OH groups) present have been protected against heat degradation by treating the copolymer with NH.sub.3 or NH.sub.3 producing compounds.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: July 8, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dana P. Carlson, Dewey L. Kerbow, Thomas J. Leck, Allan H. Olson
  • Stabilized suspension of glass bubbles in an aqueous dispersion of tetrafluoroethylene polymer
    Patent number: 4391930
    Abstract: Hollow glass bubble-containing aqueous dispersions of tetrafluoroethylene polymer having good shelf life are provided, said dispersions also containing nonionic surfactant and water soluble electrolyte.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: July 5, 1983
    Assignee: E. I. DuPont de Nemours & Co.
    Inventor: Allan H. Olson
  • Tetrafluoroethylene polymer dispersions
    Patent number: 4370376
    Abstract: Tetrafluoroethylene polymer coating dispersions when coated on glass fabric improve acid resistance of the fabric if the dispersions contain a selected silane, siloxane and water repellant.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: January 25, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Subhash V. Gangal, Allan H. Olson