Patents by Inventor William George Rodway

William George Rodway 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).

  • Finely divided, irradiated tetrafluorethylene polymers
    Patent number: 4052278
    Abstract: Dry non-sticky fine lubricant powders are made by .gamma.-irradiation of unsintered coagulated dispersion grade tetrafluoroethylene polymers and organic dispersions are made by dispersing the irradiated polymer in an organic medium.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: October 4, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael Trevenen Brown, William George Rodway
  • Process for aqueous dispersion of perfluoroalkyl- or perfluoroalkoxy trifluoroethylene polymers
    Patent number: 4038231
    Abstract: A tetrafluoroethylene polymer comprising primary particles having core and shell portions, the core portion comprising tetrafluoroethylene polymerized in the presence of a perfluoroalkyl or alkoxy trifluoroethylene comonomer, particularly hexafluoropropylene, and shell portion consisting of tetrafluoroethylene homopolymer, or a copolymer of tetrafluoroethylene in which the comonomer concentration is less than half that in the core portion.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: July 26, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: John Michael Downer, William George Rodway, Laurence Stanley John Shipp
  • Process for preparing a friable tetrafluoroethylene polymer powder from unsintered coagulated dispersion grade tetrafluoroethylene polymer
    Patent number: 4036718
    Abstract: Dry non-sticky fine lubricant powders are made by .gamma.-irradiation of unsintered coagulated dispersion grade tetrafluoroethylene polymers and organic dispersions are made by dispersing the irradiated polymer in an organic medium.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: July 19, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael Trevenen Brown, William George Rodway
  • Tetrafluoroethylene polymers
    Patent number: 4029870
    Abstract: Dry non-sticky fine lubricant powders are made by .gamma.-irradiation of unsintered coagulated dispersion grade tetrafluoroethylene polymers and organic dispersions are made by dispersing the irradiated polymer in an organic medium.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: June 14, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael Trevenen Brown, William George Rodway