Patents by Inventor Keith Charles Allen

Keith Charles Allen 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).

  • Vinyl acetate/ethylene emulsion stabilized with a phosphate surfactant
    Patent number: 6673854
    Abstract: The present invention is directed to a vinyl acetate-ethylene polymer dispersion containing a vinyl acetate-ethylene polymer, a phosphate-functional surfactant, and a protective colloid. The invention is also directed to an aqueous coating composition having at least 65 percent by volume of pigment, on a dry solids volume basis and an amount effective to produce good scrub resistance of up to 25 percent by weight of the vinyl acetate-ethylene binder.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: January 6, 2004
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Dorian Pierre, Stephen John Baines, Keith Charles Allen
  • Vinyl acetate/ethylene emulsion stabilized with a phosphate surfactant
    Publication number: 20030100671
    Abstract: The present invention is directed to a vinyl acetate-ethylene polymer dispersion containing a vinyl acetate-ethylene polymer, a phosphate-functional surfactant, and a protective colloid. The invention is also directed to an aqueous coating composition having at least 65 percent by volume of pigment, on a dry solids volume basis and up to up to 25 percent by weight of the vinyl acetate-ethylene binder The binder can be used to produce a high pigment volume concentration (PVC) coating, at low cost.
    Type: Application
    Filed: October 5, 2001
    Publication date: May 29, 2003
    Inventors: Dorian Pierre, Stephen John Baines, Keith Charles Allen