Patents by Inventor Antony Keith VanDyk

Antony Keith VanDyk 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).

  • Colorants, dispersants and dispersions containing polymeric nanoparticles
    Patent number: 7273842
    Abstract: Colorants, dispersants, and dispersions are provided which include PNPs having a mean diameter in the range of from 1 to 50 nanometers, an acid value in the range of from 0 to 700 mg KOH/g PNP solids, an amine value in the range of from 0 to 250, a hydroxyl number in the range of from 0 to 250 mg KOH/g PNP solids, and containing at least 2 wt % of a polarizable group. Also provided are methods for preparing colorants, dispersants, and dispersions, which include PNPs.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: September 25, 2007
    Assignee: Rohm and Haas Company
    Inventors: Antony Keith VanDyk, Dennis Paul Lorah
  • Aqueous composition containing polymeric nanoparticles
    Patent number: 7071261
    Abstract: An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: July 4, 2006
    Assignee: Rohm and Haas Company
    Inventors: Wayne Devonport, Ralph Craig Even, Ann Robertson Hermes, Dennis Paul Lorah, Joseph David Tanzer, Antony Keith VanDyk
  • Aqueous composition containing polymeric nanoparticles
    Publication number: 20030232914
    Abstract: An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventors: Wayne Devonport, Ralph Craig Even, Ann Robertson Hermes, Dennis Paul Lorah, Joseph David Tanzer, Antony Keith VanDyk