Patents by Inventor Ralph P. Chambers

Ralph P. Chambers 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).

  • Aqueous fluoropolymer dispersion and method for making fluoropolymer-containing thermoplastic resin composition
    Patent number: 6040370
    Abstract: A stabilized aqueous fluoropolymer dispersion includes a fluoropolymer and a fatty acid salt. A fluoropolymer additive is made by aqueous emulsion polymerization of one or more ethylenically unsaturated monomers in the presence of the stabilized fluoropolymer dispersion or, alternatively, by co-coagulation of the stabilized fluoropolymer dispersion and an aqueous emulsion of a second polymer. A fluoropolymer-containing thermoplastic resin composition is made by combining the fluoropolymer additive with a thermoplastic resin.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: March 21, 2000
    Assignee: General Electric Company
    Inventors: Mary Ellen Wozny, Ralph P. Chambers, James L. Bland