Patents Assigned to Millennium Inorganic Chemicals, Inc.
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Publication number: 20080047471Abstract: In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints.Type: ApplicationFiled: September 7, 2007Publication date: February 28, 2008Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Duen-Wh Hua, Fu-Chu Wen
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Publication number: 20080035027Abstract: In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength, and/or gloss.Type: ApplicationFiled: July 17, 2007Publication date: February 14, 2008Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert Hopkins, Karen Bowen, David Bell
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Patent number: 7285162Abstract: In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints.Type: GrantFiled: November 30, 2004Date of Patent: October 23, 2007Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Duen-Wh Hua, Fu-Chu Wen
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Patent number: 7261770Abstract: In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength, and/or gloss.Type: GrantFiled: November 24, 2004Date of Patent: August 28, 2007Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert M. Hopkins, Karen L. Bowen, David E. Bell
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Patent number: 7259195Abstract: 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: GrantFiled: January 16, 2004Date of Patent: August 21, 2007Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Patent number: 7153488Abstract: The present invention is directed to the suppression of the formation noxious compounds such as furans. According to the present invention, a venturi device is used to rapidly quench a chlorinator reaction gas. The rapid quench minimizes the resonance time that furan precursors are at conditions conducive to furan formation.Type: GrantFiled: August 3, 2004Date of Patent: December 26, 2006Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Thomas Messer, Peter Carter
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Patent number: 7138010Abstract: The invention is a pigment comprising titanium dioxide and an amino phosphoryl compound. The pigment of the invention imparts improved physical qualities, such as improved lacing resistance and dispersion, when incorporated into polymers.Type: GrantFiled: December 12, 2005Date of Patent: November 21, 2006Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, M. Kamal Akhtar
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Patent number: 7125536Abstract: This invention relates to a composition comprising nano-structured metal oxide particles (particularly, zirconia) and at least one stabilizing agent, a method to produce the composition, and a method to produce the thermally stable nano-structured particles. The method to produce the nano-structured particles comprises first preparing a base solution and a nanoparticle precursor solution, then combining these solutions at a final pH 7 or greater to precipitate a colloidal hydrous oxide. The colloidal hydrous oxide is then treated with at least one silicate, phosphate, or aluminum phosphate stabilizing agent and dried. These nano-structured particle products have high thermal stability and are particularly advantageous in applications as catalysts or catalyst supports that operate at high temperatures.Type: GrantFiled: February 6, 2004Date of Patent: October 24, 2006Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Guoyi Fu, BillieJo Monk, Corinne Lehaut
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Patent number: 7091262Abstract: A treatment for particulate inorganic solids is provided. This treatment, which uses certain organophosphinic compounds, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated particulate inorganic solids are incorporated into polymeric matrices. The addition of the organophosphinic compounds of the present invention may flexibly be incorporated into known processes at varying points, and are preferably added downstream of any filtering steps or to a dry particulate inorganic solid.Type: GrantFiled: August 1, 2003Date of Patent: August 15, 2006Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert Kostelnik
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Publication number: 20060107873Abstract: In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength, and/or gloss.Type: ApplicationFiled: November 24, 2004Publication date: May 25, 2006Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert Hopkins, Karen Bowen, David Bell
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Publication number: 20060090672Abstract: Pigment compositions and methods are provided comprising coupling agents. In various embodiments, a pigment is provided comprising titanium dioxide and a coupling agent having the formula: (R?O)(q-n)M(XRm)n wherein M is Ti, Zr, Sn, or Al; X is —CO2, ?PO2, —PO2(OH), ?PO2PO2(OH), or —SO3; m is 1 or 2; n is 1, 2, or 3 and q is 4 when M is Ti, Zr or Sn,or n is 1 or 2and q is 3 when M is Al; R? is a substituted or unsubstituted alkyl, alkynyl, alkydiyl, alkyleno, alkanyl, alkenyl, alkoxy, aryl, arylalkyl, arylaryl, aryldiyl, or aryleno; and R is a substituted or unsubstituted alkyl, alkynyl, alkydiyl, alkyleno, alkanyl, alkenyl, alkoxy, aryl, arylalkyl, arylaryl, aryldiyl, or aryleno, wherein R comprises a carbon chain of 2 to 30 carbon atoms. The pigment compositions have improved lacing resistance, dispersibility, stability or combinations thereof.Type: ApplicationFiled: October 29, 2004Publication date: May 4, 2006Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Gang Lu, Linh Cheong, William Reichert
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Publication number: 20060084569Abstract: The present invention is directed to high activity titanium oxide DeNOx catalysts. In preferred embodiments, by depositing vanadium oxide on a titania supported metal oxide such as tungsten oxide, an improved catalyst may be generated. This catalyst may be used in the treatment of exhaust from sources such as automobiles and industrial plants.Type: ApplicationFiled: October 19, 2004Publication date: April 20, 2006Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Steven Augustine, Guoyi Fu
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Patent number: 7008602Abstract: Processes for the efficient and economical beneficiation of titaniferous ore are provided. A unique process for beneficiating ore comprising pretreatment of the ore by oxidation and reduction, followed by acid leaching with sulfuric acid has been developed. The acid used in this process may be recycled, which will thereby increase the efficiency of the process. Preferably the ore treated according to the present invention is ilmenite ore.Type: GrantFiled: April 19, 2002Date of Patent: March 7, 2006Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Earl Smith, Michael Robinson, Kirit Talati
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Publication number: 20060039845Abstract: The present invention is directed to the suppression of the formation noxious compounds such as furans. According to the present invention, a venturi device is used to rapidly quench a chlorinator reaction gas. The rapid quench minimizes the resonance time that furan precursors are at conditions conducive to furan formation.Type: ApplicationFiled: August 3, 2004Publication date: February 23, 2006Applicant: Millennium Inorganic Chemicals, Inc,Inventors: Thomas Messer, Peter Carter
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Patent number: 6955703Abstract: The present invention relates to a process for the production of an elemental material, comprising the step of reacting a halide of the elemental material with a reducing agent in solid form in a fluidized bed reactor at a reaction temperature which is below the melting temperature of the reducing agent. In a preferred embodiment of the present invention, the elemental material is titanium and the titanium is produced in powder form. The invention also relates to the production of alloys or intermetallics of the elemental materials.Type: GrantFiled: December 26, 2002Date of Patent: October 18, 2005Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Ling Zhou, Frederick E. L. Schneider, Jr., Robert J. Daniels, Thomas Messer, Jon Philip R. Peeling
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Publication number: 20050175525Abstract: The present invention is directed to producing nano-structured particles that have high specific surface-areas and high thermal stability. By aging nanoparticle precursors, and processing them under appropriate conditions, one is able to generate nano-structured particles that may be used in catalysts. By adding a stabilizing agent one is able to further improve the high thermal stability. These nano-structured particle products are particularly advantageous in applications as catalysts or catalyst supports that operate at high temperatures.Type: ApplicationFiled: February 6, 2004Publication date: August 11, 2005Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Guoyi Fu, BillieJo Monk, Corinne Lahaut
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Publication number: 20050123761Abstract: In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints.Type: ApplicationFiled: November 30, 2004Publication date: June 9, 2005Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Duen-Wh Hua, Fu-Chu Wen
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Patent number: 6902601Abstract: A method of producing an elemental material or an alloy thereof from a halide or mixtures of halides is provided. The halide or mixtures thereof are contacted with a reducing gas in the presence of reductant material, preferably in sufficient quantity to convert the halide to the elemental material or alloy and to maintain the temperature of the reactants at a temperature lower than the boiling point of the reductant material at atmospheric pressure or the sintering temperature of the produced elemental material or alloy.Type: GrantFiled: September 12, 2002Date of Patent: June 7, 2005Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Jason X. Nie, Robert Daniels, Dale H. Perkins-Banks, Thomas Messer
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Patent number: 6825251Abstract: 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: GrantFiled: August 13, 2003Date of Patent: November 30, 2004Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Publication number: 20040202601Abstract: The present invention provides methods and compositions comprising inorganic solids for use as pigments in paints, papers and plastics.Type: ApplicationFiled: April 30, 2004Publication date: October 14, 2004Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Fu-Chu Wen, Duen-Wu Hua, Deborah E. Busch