Patents by Inventor Hilary P. Davis

Hilary P. Davis 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).

  • Coating composition comprising stabilized inorganic pigments
    Patent number: 6040360
    Abstract: A coating composition comprising stabilized inorganic pigments is provided. The coating comprises a pigment treated with a pigment treatment composition of a polyester havng an acid number between 15 and 50 or a phosphate ester or pyrophosphate ester, having an acid number between 10 and 50, solvent, and an amino functional resin.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 21, 2000
    Assignee: BASF Corporation
    Inventors: Gregory G. Menovcik, Thomas C. Balch, Hilary P. Davis, Paul Dudek
  • Stabilization of inorganic pigments in aqueous media
    Patent number: 5876493
    Abstract: A method for stabilizing inorganic pigments in aqueous media and waterborne coating compositions is provided. The method comprises forming a pigment treatment composition of a polyester havng an acid number between 15 mg KOH/g and 50 mg KOH/g or a phosphate ester or pyrophosphate ester, having an acid number between 10 mg KOH/g and 50 mg KOH/g, solvent, and an amino functional resin. The composition is then deposited on the pigment. The treated pigment is stable in an aqueous environment and is suitable for waterborne coating compositions.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: March 2, 1999
    Assignee: BASF Corporation
    Inventors: Gregory G. Menovcik, Thomas C. Balch, Hilary P. Davis, Paul Dudek