Patents Represented by Attorney Herbet M. Hanegan

Find this attorney in the Justia Lawyer Directory

  • Method for producing electrically conductive pigmentary composites
    Patent number: 5106690
    Abstract: A method for producing electrically conductive pigmentary composites comprising the steps of: (a) adding a cyclic monomer material and a chemical oxidant to an aqueous slurry of a finely divided pigmentary metal oxide substrate material, the chemical oxidant being suitable for effecting the polymerization of the cyclic monomer material, and (b) allowing the cyclic monomer material to deposit and polymerize on the surface of the metal oxide substrate material.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: April 21, 1992
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: Rodney D. Stramel