Patents by Inventor Bruce R. Palmer

Bruce R. Palmer 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).

  • Patent number: 6544328
    Abstract: A process for preparing an improved pigment which is readily dispersible in paints and plastics concentrates is provided. In accordance with the process, a particulate pigment is mixed with water to form a slurry thereof, and a surface active agent is mixed with the slurry so that the pigment therein is coated therewith. A preferred surface active agent is a mixture of ethoxylated sorbitan derivatives, non-ethoxylated mono and diglycerides and ethoxylated mono and diglycerides. After the pigment has been coated with the surface active agent, the coated pigment is dried.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: April 8, 2003
    Assignee: Kerr-McGee Chemical LLC
    Inventors: Bruce L. Roberts, Jeffrey D. Elliott, Ronnie L. Hoskins, Bruce R. Palmer
  • Publication number: 20030029358
    Abstract: A process for preparing an improved pigment which is readily dispersible in paints and plastics concentrates is provided. In accordance with the process, a particulate pigment is mixed with water to form a slurry thereof, and a surface active agent is mixed with the slurry so that the pigment therein is coated therewith. A preferred surface active agent is a mixture of ethoxylated sorbitan derivatives, non-ethoxylated mono and diglycerides and ethoxylated mono and diglycerides. After the pigment has been coated with the surface active agent, the coated pigment is dried.
    Type: Application
    Filed: January 26, 2001
    Publication date: February 13, 2003
    Inventors: Bruce L. Roberts, Jeffrey D. Elliott, Ronnie L. Hoskins, Bruce R. Palmer
  • Patent number: 5597515
    Abstract: A process for producing a conductive, fluorine-doped titanium dioxide product which is doped throughout, said process comprising the steps of: (a) reacting the precursors in a system to form fluorine-doped TiO.sub.2, said precursors consisting essentially of a titanium alkoxide and a fluorine source; (b) reducing the fluorine-doped titanium dioxide product at a temperature sufficient to form said conductive, fluorine-doped titanium dioxide product; and (c) recovering the reduced product.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: January 28, 1997
    Assignee: Kerr-McGee Corporation
    Inventors: James W. Kauffman, Bruce R. Palmer
  • Patent number: 5571855
    Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated.In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: November 5, 1996
    Assignee: Kerr-McGee Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
  • Patent number: 5504134
    Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated. In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: April 2, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
  • Patent number: 5362770
    Abstract: A method of increasing the hydrophobicity of solid materials. The inventive method comprises the steps of: (a) metal ion activating the surface of a solid substrate material to provide reactive metal sites on the surface and (b) chemically bonding a surfactant to the surface at the reactive metal sites. Titanium dioxide pigments and other particulate property modifiers treated in accordance with the inventive method are more readily dispersed in polymer compositions.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: November 8, 1994
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Bruce R. Palmer, Rodney D. Stramel
  • Patent number: 5352725
    Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated. In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: October 4, 1994
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
  • Patent number: 5316697
    Abstract: An inventive process for forming a conductive, particulate, fluorine-doped, zinc oxide product which is doped throughout. The process comprises the step of reacting vapor phase reactants in a vapor phase oxidation system and at a temperature sufficient to form the conductive, particulate, fluorine-doped, zinc oxide product. The vapor phase reactants used in the inventive process comprise: elemental zinc vapor; at least one fluorine source; and at least one water source.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: May 31, 1994
    Assignee: Kerr-McGee Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman
  • Patent number: 5278208
    Abstract: A colloidal sulfur particle opacifying extender scatters light across the visible spectrum to result in an overall colorless appearance. A process for opacifying and extending a matrix which can be a water-borne emulsion or a coating, using the colloidal sulfur particles, and opacified and extended water-borne emulsions and coatings including the colloidal sulfur particles are also provided.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: January 11, 1994
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Bruce R. Palmer, Penelope Stamatakis
  • Patent number: 5260353
    Abstract: A method of increasing the hydrophobicity of solid materials. The inventive method comprises the steps of: (a) metal ion activating the surface of a solid substrate material to provide reactive metal sites on the surface and (b) chemically bonding a surfactant to the surface at the reactive metal sites. Titanium dioxide pigments and other particulate property modifiers treated in accordance with the inventive method are more readily dispersed in polymer compositions.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: November 9, 1993
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Bruce R. Palmer, Rodney D. Stramel
  • Patent number: 5055512
    Abstract: Ultraviolet light stable polymeric resin compositions comprising an ultraviolet light degradable polymeric resin component and an effective ultraviolet light absorbing amount of a particulate metal titanate component.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: October 8, 1991
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: James W. Kauffman, Bruce R. Palmer
  • Patent number: 4987164
    Abstract: Ultraviolet light stable polymeric resin compositions comprising an ultraviolet light degradable polymeric resin component and an effective ultraviolet light absorbing amount of a particulate metal titanate component.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: January 22, 1991
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: James W. Kauffman, Bruce R. Palmer