Patents by Inventor Jeffery E. G. Powell

Jeffery E. G. Powell 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).

  • Polyester resin intermediate compositions and preparation and uses thereof
    Patent number: 6797394
    Abstract: The invention relates to resin intermediates and their preparation. The invention also relates to hydroxyl-functional, water-dispersible polymers formed from the intermediates and compositions containing the water-dispersible polymers. A preferred composition of the invention is a zero volatile organic content (VOC), ambient-cure enamel composition which contains a hydroxyl-functional, water-dispersible polyester.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: September 28, 2004
    Assignee: Eastman Chemical Company
    Inventors: Thauming Kuo, Jeffery E. G. Powell
  • Polyester resin intermediate compositions and preparation and uses thereof
    Patent number: 6444781
    Abstract: The invention relates to resin intermediates and their preparation. The invention also relates to hydroxyl-functional, water-dispersible polymers formed from the intermediates and compositions containing the water-dispersible polymers. A preferred composition of the invention is a zero volatile organic content (VOC), ambient-cure enamel composition which contains a hydroxyl-functional, water-dispersible polyester.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: September 3, 2002
    Assignee: Eastman Chemical Company
    Inventors: Thauming Kuo, Jeffery E. G. Powell
  • Polyester resin intermediate compositions and preparation and uses thereof
    Publication number: 20020091228
    Abstract: The invention relates to resin intermediates and their preparation. The invention also relates to hydroxyl-functional, water-dispersible polymers formed from the intermediates and compositions containing the water-dispersible polymers. A preferred composition of the invention is a zero volatile organic content (VOC), ambient-cure enamel composition which contains a hydroxyl-functional, water-dispersible polyester.
    Type: Application
    Filed: November 27, 2001
    Publication date: July 11, 2002
    Applicant: Eastman Chemical Company
    Inventors: Thauming Kuo, Jeffery E.G. Powell
  • Process for the preparation of phenol-functional polyester resins
    Patent number: 5416187
    Abstract: This invention provides an improved process for preparing phenol-functional polyester resins which are useful in thermosetting coating compositions. The process involves a polycondensation reaction comprising a two-step charging procedure and suitable reaction conditions.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: May 16, 1995
    Assignee: Eastman Chemical Company
    Inventors: Thauming Kuo, Jeffery E. G. Powell
  • Water-based water repellent coating compositions
    Patent number: 5338345
    Abstract: There is provided a water based water repellent coating composition, method of making and method of use. The coating composition comprises an emulsion having water as the continuous phase and, as the discontinuous phase, droplets of a nonvolatile organic water repellent composition, the emulsion containg an emulsion stabilizing amount of a hydrophobically modified polyacrylic acid polymer wherein the viscosity of the emulsion is less than about 100 Cps and the particle size of the droplets is less than about 50 microns. The relatively low viscosity and small particle size provides for easy application and excellent penetration into porous substrates. The process of making the compositions involves the making of a conventional emulsion of this type and then high kinetic energy processing so as to produce the desired viscosity and particle size. The method of use involves the application of the composition to a substrate followed by evaporation of the water and any volatile components from the composition.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 16, 1994
    Assignee: Eastman Kodak Company
    Inventors: Victoria D. Scarborough, David A. Czekai, Jeffery E. G. Powell