Patents by Inventor Steven G. Yeates

Steven G. Yeates 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).

  • Production of aqueous-based fluoropolymer compositions
    Patent number: 5010121
    Abstract: Production of an aqueous-based composition comprising a fluoropolymer and a vinyl copolymer by (1) preparing a non-aqueous solution of a fluoropolymer comprising repeat units derived from at least one fluorolefine and repeat units bearing chain-pendant disperser groups imparting water-emulsifiability or water-solubility to the fluoropolymer; (2) converting the non-aqueous solution formed in step (1) into an aqueous-based emulsion or solution of said fluoropolymer; and (3) polymerising at least one vinyl monomer to form a vinyl polymer in the presence of said aqueous-based emulsion or solution from step (2).
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: April 23, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: Steven G. Yeates, John C. Padget