Patents by Inventor Clayton J. Radke

Clayton J. Radke 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).

  • HYDROPHOBICALLY MODIFIED PIGMENT COMPOSITION
    Publication number: 20220363908
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with an organosilane polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof, a dialkyldihydroxysilane or a salt thereof, and an ancillary alkylsilane triol. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity. The dispersion is further useful for providing stain and corrosion resistance in coatings arising from paints.
    Type: Application
    Filed: October 1, 2020
    Publication date: November 17, 2022
    Inventors: David G. Barton, James C. Bohling, Juan F. Callejas, Amrita Chakravarty, Alexander Katz, Manish K. Mishra, Clayton J. Radke, Antony K. Van Dyk
  • Hydrophobic pigment modification
    Patent number: 10947392
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof and a dialkyldihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: March 16, 2021
    Assignees: Rohm and Haas Company, The Regents of the University of California
    Inventors: James C. Bohling, Alexander Katz, Manish Mishra, Clayton J. Radke, Antony K. Van Dyk
  • HYDROPHOBIC PIGMENT MODIFICATION
    Publication number: 20190309172
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof and a dialkyldihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Inventors: James C. Bohling, Alexander Katz, Manish Mishra, Clayton J. Radke, Antony K. Van Dyk
  • HYDROPHOBIC PIGMENT MODIFICATION
    Publication number: 20190185674
    Abstract: The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 20, 2019
    Inventors: James C. Bohling, Yijun Guo, Alexander Katz, Manish Mishra, Clayton J. Radke, John A. Roper, III, Antony K. Van Dyk
  • Aqueous dispersion of hydrophobically modified pigment particles
    Patent number: 9957403
    Abstract: The present invention relates to a composition comprising a) a stable aqueous dispersion of inorganic pigment particles hydrophobically modified with covalently bonded polysiloxane or silyl groups; and b) a polymeric anionic dispersant; wherein the hydrophobically modified inorganic pigment particles have an average particle size in the range of from 200 nm to 10 ?m, and the solids content of the hydrophobically modified inorganic pigment particles is from 10 to 80 weight percent, based on the weight of inorganic pigment particles and water. The composition of the present invention provides a way to improve water resistance in coatings formulations.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 1, 2018
    Assignees: The Regents of the University of California, Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Joseph Jankolovits, Alexander Katz, James C. Bohling, Clayton J. Radke, Antony K. Van Dyk, John A. Roper, III
  • Aqueous Dispersion of Hydrophobically Modified Pigment Particles
    Publication number: 20170022384
    Abstract: The present invention relates to a composition comprising a) a stable aqueous dispersion of inorganic pigment particles hydrophobically modified with covalently bonded polysiloxane or silyl groups; and b) a polymeric anionic dispersant; wherein the hydrophobically modified inorganic pigment particles have an average particle size in the range of from 200 nm to 10 ?m, and the solids content of the hydrophobically modified inorganic pigment particles is from 10 to 80 weight percent, based on the weight of inorganic pigment particles and water. The composition of the present invention provides a way to improve water resistance in coatings formulations.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventors: Joseph Jankolovits, Alexander Katz, James C. Bohling, Clayton J. Radke, Antony K. Van Dyk, John A. Roper, III
  • Process for tertiary oil recovery using tall oil pitch
    Patent number: 4526231
    Abstract: Compositions and process employing same for enhancing the recovery of residual acid crudes, particularly heavy crudes, by injecting a composition comprising caustic in an amount sufficient to maintain a pH of at least about 11, preferably at least about 13, and a small but effective amount of a multivalent cation for inhibiting alkaline silica dissolution with the reservoir. Preferably a tall oil pitch soap is included and particularly for the heavy crudes a polymeric mobility control agent.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: July 2, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Clayton J. Radke