Patents Represented by Attorney, Agent or Law Firm Scott D. Locke, Esq.
  • Organo-acid phosphate treated pigments
    Patent number: 6825251
    Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-acid phosphate molecules, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: November 30, 2004
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Modasser El-Shoubary, Robert J. Kostelnik
  • Processes for treating iron-containing waste streams
    Patent number: 6800260
    Abstract: Processes for treating iron containing waste streams are provided. According to these processes, metal-containing compounds, particularly iron oxides are produced. These methods may, for example, be used in the processing of the waste streams from the chlorination of titanium-bearing raw materials and involve the use of certain combinations of neutralization and precipitation steps.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: October 5, 2004
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Peter Carter, Christopher John Davis, Michael Robinson, Kirit Talati
  • Organo-acid phosphate treated pigments
    Patent number: 6765041
    Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-acid phosphate molecules, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 20, 2004
    Assignee: Millenium Inorganic Chemicals, Inc.
    Inventors: Modasser El-Shoubary, Robert J. Kostelnik
  • TiO2 compounds obtained from a high silica content ore
    Patent number: 6713038
    Abstract: A titanium dioxide compound was isolated from a rare type of naturally occurring ore. Processes for efficiently isolating and obtaining these TiO2 compounds, as well as methods for using them have been developed. These TiO2 compounds may be used directly in applications such as paper, plastics and paints without being subjected to the chloride or sulfate processes. Also they made be used as a feedstock for the chloride or sulfate processes. In order to obtain these TiO2 compounds, one may grind or pulverize the naturally occurring ore, disperse it in a solution or suspension, and process it by selective flocculation or aqueous biphasic extraction.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 30, 2004
    Assignee: Millenium Inorganic Chemicals, Inc.
    Inventors: Ling Zhou, Thomas Messer, Fu-Chu Wen, Mark Banash
  • Pigments treated with organo-phosphoric acids and their salts
    Patent number: 6713543
    Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-phosphoric acids and/or their salts, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: March 30, 2004
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Modasser El-Shoubary, Robert J. Kostelnik
  • Pigments treated with organosulfonic compounds
    Patent number: 6646037
    Abstract: A treatment for pigments is provided. This treatment, which uses certain organosulfonic compounds, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices. The addition of organosulfonic compounds may flexibly be incorporated into known processes at varying points, and are preferably added downstream of any filtering steps.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: November 11, 2003
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Modasser El-Shoubary, Robert Kostelnik, Charles Wheddon