Organic Material Containing Patents (Class 106/447)
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Publication number: 20080022900Abstract: A process is described for manufacturing a titanium dioxide pigment, comprising the steps of a) preparing an aqueous, high solids slurry by gathering materials including crude titanium dioxide from the oxidation of titanium tetrachloride, a dispersant and water and then mixing the gathered materials to form the slurry, b) diluting the aqueous, high solids slurry by adding a further amount of water to the high solids slurry with mixing, c) media-milling the resultant aqueous, lesser solids slurry, d) recovering the media-milled, crude titanium dioxide product and e) finishing the media-milled, crude titanium dioxide product to produce a finished titanium dioxide pigment product.Type: ApplicationFiled: July 25, 2006Publication date: January 31, 2008Inventors: Venkata Rama Rao Goparaju, Ronnie Hoskins, Darci N. Pillars
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Patent number: 7261942Abstract: Method for producing novel photochemically-active metal oxide-containing aqueous compositions such as TiO2 compositions coated or sprayed and dried under ambient conditions to form novel photochemically-active, colorless coatings having strong wetability and adhesion to clear substrates such as window glass. Preferably the present compositions include a suitable wetting agent or combination of agents to improve the wetability of the Titanium peroxide-containing amorphous film, allowing thinner films to be readily applied. Also the inclusion of an acrylic aliphatic urethane polymer can replace wholly or partially the titanium peroxide sol and provide additional film forming and wetability properties. The acrylic urethane polymer reduces or eliminates the amount of titanyl peroxide that is required and thereby reduces or eliminates the yellow color.Type: GrantFiled: March 3, 2005Date of Patent: August 28, 2007Assignee: Prizmalite Industries Inc.Inventor: John Andrews
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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: 7250080Abstract: An improved process for making an organosilicon compound surface-treated titanium dioxide material, comprising (a) forming a mixture of the titanium dioxide material in water, (b) wet milling the mixture, (c) adjusting the pH of the slurry resulting from step (b) to between about 5.0 and about 8.5, (d) after step (c), removing the titanium dioxide material from the mixture by vacuum or pressure filtration, (e) after step (d), washing the titanium dioxide material so removed, (f) after step (e), converting the washed titanium dioxide material to a fluid dispersion having a pH of from about 3.5 to less than about 7 via addition of a fluidizing agent comprising a water-soluble monoprotic acid, (g) after, or concurrently with, step (f), adding to the resulting dispersion of titanium dioxide material an organosilicon compound, with mixing, and (h) spray drying the dispersion of the washed titanium dioxide material resulting from step (g) to yield a dry titanium dioxide pigment powder.Type: GrantFiled: September 6, 2006Date of Patent: July 31, 2007Assignee: Tronox LLCInventors: Daniel H. Craig, Mark D. Westmeyer
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Patent number: 7220305Abstract: A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.Type: GrantFiled: November 4, 2005Date of Patent: May 22, 2007Assignee: Croda International PLCInventors: Graham Paul Dransfield, Susan Cutter, Phillip Lawrence Lyth
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Patent number: 7169322Abstract: Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al2O3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or grinding devices which a achieve an energy input of at least 200 KJ/m3. The dispersion can be used for the chemical-mechanical polishing of semiconductor substrates.Type: GrantFiled: February 21, 2002Date of Patent: January 30, 2007Assignee: Degussa AGInventors: Frank Menzel, Wolfgang Lortz, Helmut Mangold
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Patent number: 7166157Abstract: A method and material for improved TiO2 pigment for paper and laminates is described. Phosphorous, titanium, and aluminum compounds are successively added to a TiO2 pigment suspension. Resulting pigments show improved greying resistance and hiding power over prior art pigments, and show improved results as pigments in tests of paper and laminates.Type: GrantFiled: August 8, 2003Date of Patent: January 23, 2007Assignee: Kronos International IncInventors: Lydia Drews-Nicolai, Siegfried Bluemel, Lothar Elfenthal, Volker Schmitt
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Patent number: 7160374Abstract: A flaky pigment excellent in leafing properties and in adhesion between pigment particles and a coating (resin) was obtained by coating the surface of a flaky pigment with a coupling agent and a phosphate having a perfluoroalkly group or a silane compound. Accordingly, the flaky pigment is excellent as a pigment for coating or printing ink of which brightness and durability are required.Type: GrantFiled: February 15, 2001Date of Patent: January 9, 2007Assignee: Merck Patent GmbHInventors: Eiji Umehara, Koushiro Kunii
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Patent number: 7156914Abstract: A pigment paste and a method for making the same that alters the appearance of concrete such that, after the concrete sets, it resembles natural stone concrete sets, it resembles natural stone (e.g., marble, granite, sandstone, bluestone, etc.) without separately applying a finish of any kind to the concrete are provided. The pigment paste preferably comprises a filler, a pigment, an anti-foaming agent, a surfactant, and water. In some embodiments, the surfactant is a water reducing admixture. A concrete compound having a finish resembling natural stone is made by combining the pigment paste with a concrete mix, which includes a cementitious material with aggregate and water, and a chemical admixture. Upon adding the pigment paste and mixing it, the cementitious material is allowed to set, where, after it sets, the concrete has a finish resembling natural stone.Type: GrantFiled: June 24, 2004Date of Patent: January 2, 2007Assignee: The Original Concrete Company, LLCInventor: Semyon A. Shimanovich
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Patent number: 7144838Abstract: The present invention relates to a process for producing titanium dioxide pigment, which comprises a step of coating hydrolysis product of an alkylsilane compound represented by the following formula (1): (where R is an alkyl group having 5 or less carbon atoms, R? is a hydrolyzable group, and n is an integer of 1 to 3, m is an integer of 0 to 2, and n+m?3) by dry processing on surfaces of particles of titanium dioxide pigment. The present invention provides titanium dioxide pigment with distinguished hydrophobic property, dispersibility, and heat resistance.Type: GrantFiled: March 10, 2003Date of Patent: December 5, 2006Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hideo Takahashi, Toshihiko Akamatsu, Yuji Shigeno
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Patent number: 7144840Abstract: The present invention relates to a titanium dioxide material for coating on a substrate and method of making the same. The coated material is resistant to delamination and can be used for air-purification purposes.Type: GrantFiled: July 22, 2004Date of Patent: December 5, 2006Assignee: Hong Kong University of Science and TechnologyInventors: King Lun Yeung, Nan Yao
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Patent number: 7138011Abstract: Inorganic pigments treated with at least one N,N,N-trialkyl quaternary amino acid inner salt possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.Type: GrantFiled: September 7, 2004Date of Patent: November 21, 2006Assignee: Tronox LLCInventor: Daniel H. Craig
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Patent number: 7135066Abstract: Ice paint for painting ice surfaces. The ice paint comprises rutile TiO2, precipitated calcium carbonate manufactured to a particle size of 0.8 microns, and water. The rutile TiO2 is combined with the precipitated calcium carbonate in a ratio of at least 1 part rutile TiO2 to 6.5 parts precipitated calcium carbonate.Type: GrantFiled: March 31, 2006Date of Patent: November 14, 2006Inventors: James Nafus, Jr., James Nafus, Sr.
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Patent number: 7135067Abstract: The invention relates to a pigment dispersion consisting essentially of a) at least one organic or inorganic pigment or a combination of the same, b) an alpha-methyl--omega-hydroxy-polyethylene glycol ether having an average molar mass of between 250 and 1000 g/mol, c) standard dispersing agents for producing aqueous pigment dispersions, d) water, and e) optionally other standard additives.Type: GrantFiled: June 29, 2002Date of Patent: November 14, 2006Assignee: Clariant GmbHInventors: Andreas Harz, Lothar Wihan, Martin Alexander Winter, Andreas Pfrengle
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Patent number: 7132470Abstract: The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the merchant distributing the paint composition made from the subject premixed compositions need only maintain inventory of four compositions. The particular compositions which are the subject of the invention exhibit stable characteristics during storage in their respective reservoirs. The compositions include a pigment composition, a dispersant thickening agent, a high resin content binder, and a low resin content binder. The compositions are combined in differing amounts to produce paint compositions being suitable for either interior or exterior use and having differing sheens, quality levels, and color bases.Type: GrantFiled: September 15, 2003Date of Patent: November 7, 2006Assignee: Coatings Management Systems, Inc.Inventors: C. Daniel McClain, Randall L. Hughes
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Patent number: 7118622Abstract: An unsupported platy titanium dioxide pigment containing an organic dye laked thereon. The dyed TiO2 pigment is useful to color cosmetic, food, and drug formulations.Type: GrantFiled: May 11, 2005Date of Patent: October 10, 2006Assignee: Engelhard CorporationInventors: Frank A. Mazzella, Gabriel E. Uzunian
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Patent number: 7101427Abstract: A particulate metal oxide having a mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.Type: GrantFiled: December 20, 2002Date of Patent: September 5, 2006Assignee: Imperial Chemical Industries plcInventors: Graham Paul Dransfield, Susan Cutter, Philip Laurence Lyth
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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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Patent number: 7084179Abstract: An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Brønsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predominantly comprised of brookite titanium oxide particles. The aqueous titanium oxide dispersion is prepared by hydrolyzed titanium tetrachloride in the presence of at least one kind of a Brønsted acid. A thin film formed from this aqueous titanium oxide dispersion exhibits good photo-catalytic activity, transparency and adhesion to a base material.Type: GrantFiled: July 29, 2003Date of Patent: August 1, 2006Assignee: Showa Denko Kabushiki KaishaInventors: Masahiro Ohmori, Hidenori Nakamura
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Patent number: 7065429Abstract: The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the merchant distributing the paint composition made from the subject premixed compositions need only maintain inventory of four compositions. The particular compositions which are the subject of the invention exhibit stable characteristics during storage in their respective reservoirs. The compositions include a pigment composition, a dispersant thickening agent, a high resin content binder, and a low resin content binder. The compositions are combined in differing amounts to produce paint compositions being suitable for either interior or exterior use and having differing sheens, quality levels, and color bases.Type: GrantFiled: November 1, 2002Date of Patent: June 20, 2006Assignee: MicroBlend Technologies, Inc.Inventors: C. Daniel McClain, Randall L. Hughes
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Patent number: 7011703Abstract: Inorganic pigments, having deposited on the pigment surface at least one alkenyl- or alkyl-substituted succinic anhydride and at least one organic polyol, possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.Type: GrantFiled: June 24, 2005Date of Patent: March 14, 2006Assignee: Kerr-McGee Chemical LLCInventor: Daniel H. Craig
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Patent number: 6958091Abstract: Inorganic pigments treated with at least one amide of a fatty acid and an aliphatic amine possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.Type: GrantFiled: September 7, 2004Date of Patent: October 25, 2005Assignee: Kerr-McGee Chemical LLCInventor: Daniel H. Craig
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Patent number: 6946028Abstract: Inorganic pigments treated with one or more of the ?,?-dialkyl substituted linear or branched carboxylic acids and the salts thereof possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.Type: GrantFiled: September 7, 2004Date of Patent: September 20, 2005Assignee: Kerr-McGee Chemical LLCInventor: Daniel H. Craig
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Patent number: 6911075Abstract: The invention relates to a process for preparing pigments, which comprises subjecting a crude pigment or mixture of crude pigments and a crystalline inorganic salt or mixture of crystalline inorganic salts together, essentially in the absence of other constituents, to the action of a rotor having a tangential speed of at least 10 m/s, so that a temperature of at least 80° C. is attained by means of friction effects; and subsequently kneading the product of this treatment with an organic liquid, during which it is possible if desired to add additional substances selected from the group consisting of inorganic salts, inert additives and colorant. These pigments and their use in polymers, printing inks and colours filters are also claimed. The invention in particular relates to a novel pigment form of Pigment Violet 23 obtained by above-mentioned process and having higher colour strength and colour saturation as well as excellent other applications properties in particular in printing inks.Type: GrantFiled: December 4, 2002Date of Patent: June 28, 2005Assignee: CIBA Specialty Chemicals Corp.Inventors: Yves Grandidier, Albert Riegler, Klaus Ruf, Urs Schlatter, Takashi Deno
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Patent number: 6884752Abstract: Method for producing novel photochemically-active metal oxide-containing aqueous compositions such as TiO2 compositions coated or sprayed and dried under ambient conditions to form novel photochemically-active, colorless coatings having strong wetability and adhesion to clear substrates such as window glass. Preferably the present compositions include a suitable wetting agent or combination of agents to improve the wetability of the Titanium peroxide-containing amorphous film, allowing thinner films to be readily applied. Also the inclusion of an acrylic aliphatic urethane polymer can replace wholly or partially the titanium peroxide sol and provide additional film forming and wetability properties. The acrylic urethane polymer reduces or eliminates the amount of titanyl peroxide that is required and thereby reduces or eliminates the yellow color.Type: GrantFiled: December 31, 2002Date of Patent: April 26, 2005Assignee: Prizmalite Industries, Inc.Inventor: John Andrews
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Patent number: 6881255Abstract: Pigment preparations comprising a) at least one pigment, b) at least one polyethyleneimine which is alkoxylated, especially ethoxylated and propoxylated and/or butoxylated, and c) at least one condensation product based on A) sulphonated aromatics, B) aldehydes and/or ketones and optionally C) one or more compounds selected from the group consisting of nonsulphonated aromatics, urea and urea derivatives.Type: GrantFiled: March 3, 2004Date of Patent: April 19, 2005Assignee: Bayer Chemicals AGInventors: Udo Herrmann, Dirk Pfützenreuter, Josef Witt, Hans-Jürgen Hartrumpf
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Patent number: 6852158Abstract: A method of attaching one or more organic groups onto a particle is described which involves reacting at least one radical with at least one particle wherein the radical is generated from the interaction of at least one transition metal compound with at least one organo-halide compound in the presence of one or more particles capable of radical capture. Variations of this method are also described.Type: GrantFiled: March 27, 2003Date of Patent: February 8, 2005Assignee: Cabot CorporationInventors: James A. Belmont, Wayne Devonport
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Patent number: 6846356Abstract: Pigment concentrates comprising at least one pigment and one polyolefin wax prepared from one or more olefins by catalysis with a single-site catalyst comprising a transition metal of groups 5 to 8 of the Periodic Table, where the complex contains not more than one cyclopentadienyl system per transition metal atom, the concentrates comprising a thermoplastic, if desired, and additives, if desired.Type: GrantFiled: June 13, 2001Date of Patent: January 25, 2005Assignee: BASF AktiengesellschftInventors: Shahram Mihan, Andreas Deckers
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Publication number: 20040250735Abstract: This invention relates to a process for preparing conditioned titanium dioxide pigments comprising (a) during pigment manufacture, admixing the following components to form a conditioned pigment:(1) a crude titanium dioxide pigment material; (2) at least about 0.1% by weight, relative to the inorganic pigment, of one or more copolymer dispersants; and(3) an optional processing liquid (preferably water); and, (b) isolating the conditioned pigment as dry powder.Type: ApplicationFiled: November 19, 2003Publication date: December 16, 2004Inventors: Patrick F. McIntyre, Karyn B. Visscher, Michael P. Diebold, Brian W. Sullivan
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Patent number: 6818051Abstract: The invention relates to particles with an opalescent effect, which have a particle size in the range from 5 &mgr;m to 5000 &mgr;m, comprising monodisperse spheres having a diameter of 50 nm to 2 &mgr;m with a standard deviation of less than 5% in a packed and regularly ordered structure which is three-dimensional in terms of domains and is mechanically stabilized by physical or chemical modification.Type: GrantFiled: November 14, 2002Date of Patent: November 16, 2004Assignee: Merck GmbHInventors: Ralf Anselmann, Thomas Albrecht, Sara Rodriguez-Mozaz
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Patent number: 6811723Abstract: An organic sol is disclosed comprising titanium oxide particles; an organic liquid phase and at least am amphiphilic compound selected among polyethylene phosphate alkyl ethers. In a first embodiment, the method for preparing said sol mixes said amphiphilic compound and the organic liquid phase, and disperses the titanium oxide particles in the resulting mixture. In a second embodiment, the method forms a mixture of titanium oxide and at least said amphiphilic compound, then disperses said mixture in said liquid phase. A solid compound comprising a mixture of titanium oxide particles and at least an amphiphilic compound selected among these mentioned above is also disclosed.Type: GrantFiled: December 5, 2001Date of Patent: November 2, 2004Assignee: Rhodia ChimieInventors: Nicole Aupaix, Jean-Yves Chane-Ching
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Publication number: 20040214927Abstract: Color concentrate compositions are disclosed, which contain colorant(s), binder, and polymer compatible with the base polymer to which the concentrate is intended to be added. The colorant is preferably one or more pigments. The compatible polymer preferably is the same polymer as the base polymer, although not necessarily the same molecular weight. The binder also serves as a surfactant to protect the compatible polymer. The presence of the compatible polymer in the concentrate enhances pellet integrity and adds the function of rheology modification to the base polymer when the concentrate is added.Type: ApplicationFiled: January 23, 2004Publication date: October 28, 2004Inventor: Norman E. Nitzsche
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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
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Patent number: 6783584Abstract: To provide a high-chromatic flaky pigment with good colorability, and to provide a method for producing the flaky pigment in a simple and inexpensive plant. A high-chromatic flaky pigment of which the entire surface of the flaky substrate coated with a metal oxide having an interference color is further coated with a semi-transparent thin metal film to enhance the interference color of the pigment.Type: GrantFiled: September 18, 2002Date of Patent: August 31, 2004Assignee: Merck Patent GmbHInventor: Norio Takahashi
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Patent number: 6783586Abstract: The present invention relates to a TiO2 pigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO2; from 3 to 6% silica glass based on the weight of the untreated TiO2.Type: GrantFiled: October 29, 2002Date of Patent: August 31, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles Robert Bettler, Michael Patrick Deibold
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Patent number: 6784231Abstract: A pigment having weak dispersion force to be readily dispersed in a medium to be colored from which an excellent yellow image having superior transparency can be produced. The pigment includes a compound having the same chemical formula as C.I. Pigment Yellow 180. The BET specific surface area based on the nitrogen absorption process of the pigment is 20-100 m2/g, and the ratio of the absolute strength of X-ray diffraction at Bragg angle 2&thgr;=17.5°±0.2° to the absolute strength of X-ray diffraction at Bragg angle 2&thgr;=18.2°±0.2° of the pigment in a powder X-ray diffraction diagram using a CuK&agr; characteristic X-ray is less than 1.8/1.0. The present invention also provides a dispersion including the pigment and a thermoplastic resin having excellent transparency and color strength.Type: GrantFiled: March 19, 2002Date of Patent: August 31, 2004Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Katsunori Shimada, Junko Sunouchi
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Publication number: 20040127354Abstract: Method for producing novel photochemically-active metal oxide-containing aqueous compositions such as TiO2 compositions coated or sprayed and dried under ambient conditions to form novel photochemically-active, colorless coatings having strong wetability and adhesion to clear substrates such as window glass. Preferably the present compositions include a suitable wetting agent or combination of agents to improve the wetability of the Titanium peroxide-containing amorphous film, allowing thinner films to be readily applied. Also the inclusion of an acrylic aliphatic urethane polymer can replace wholly or partially the titanium peroxide sol and provide additional film forming and wetability properties. The acrylic urethane polymer reduces or eliminates the amount of titanyl peroxide that is required and thereby reduces or eliminates the yellow color.Type: ApplicationFiled: December 31, 2002Publication date: July 1, 2004Inventor: John Andrews
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Patent number: 6736892Abstract: The present invention provides sulfated and carboxymethylated surfactants and dispersants produced by reacting a styrenated phenol alkoxylate with sulfamic acid and then neutralizing with a base such as ammonium hydroxide. The instant invention also provides pigment dispersion comprising: (a) a pigment; and (b) a dispersant based on sulfated and carboxymethylated styrenated phenol alkoxylates. Carbon black dispersions are also provided containing carbon black and the dispersants of the invention.Type: GrantFiled: July 16, 2002Date of Patent: May 18, 2004Assignee: Ethox Chemicals LLCInventors: Edward R. Godwin, Paul David Weipert
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Publication number: 20040089201Abstract: Pigment concentrates comprising at least one pigment and one polyolefin wax prepared from one or more olefins by catalysis with a single-site catalyst comprising a transition metal of groups 5 to 8 of the Periodic Table, where the complex contains not more than one cyclopentadienyl system per transition metal atom, the concentrates comprising a thermoplastic, if desired, and additives, if desired.Type: ApplicationFiled: December 16, 2002Publication date: May 13, 2004Inventors: Shahram Mihan, Andreas Deckers
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Publication number: 20040024108Abstract: To provide a novel light responsive material having responsive property with visible light despite essentially not comprising oxygen defects, a method of manufacturing thereof, and applications thereof. That is, the light-responsive material in the form of rutile-type titanium oxide with a light source peak wavelength of 520 nm and activity due to the effect of light with a full width at half maximum of 20 nm. The activity due to the effect of light is NO elimination activity. The method of manufacturing the light-responsive material comprising the treatment with nitrogen plasma, or the treatment in an ammonia atmosphere of rutile-type titanium oxide.Type: ApplicationFiled: August 1, 2002Publication date: February 5, 2004Applicant: ECODEVICE CORPORATIONInventor: Shinichi Sugihara
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Publication number: 20040007161Abstract: A method of attaching one or more organic groups onto a particle is described which involves reacting at least one radical with at least one particle wherein the radical is generated from the interaction of at least one transition metal compound with at least one organo-halide compound in the presence of one or more particles capable of radical capture. Variations of this method are also described.Type: ApplicationFiled: March 27, 2003Publication date: January 15, 2004Inventors: James A. Belmont, Wayne Devonport
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Patent number: 6666914Abstract: A black colorant for ink-jet printing ink, has an average particle diameter of 0.001 to 0.15 &mgr;m, and comprises: extender pigments as core particles; a gluing agent-coating layer formed on at least a part or the surface of said core particles; and a black pigment coat uniformly formed on at least a part of said gluing agent-coating layer. The black colorant for ink-jet printing ink exhibits not only a high blackness and an excellent tinting strength, but also excellent dispersibility and light resistance in spite of fine particles.Type: GrantFiled: June 6, 2002Date of Patent: December 23, 2003Assignee: Toda Kogyo CorporationInventors: Kazuyuki Hayashi, Hiroko Morii, Keisuke Iwasaki
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Patent number: 6666913Abstract: The main object is to provide a water-based ink composition which is not only superior in hiding power but also has satisfactory writing properties. This invention relates to a water-based ink composition comprising a powder consisting of inorganic particles comprising at least one of aluminum oxide, titanium dioxide and boron nitride and water.Type: GrantFiled: September 5, 2001Date of Patent: December 23, 2003Assignee: Sakura Color Products CorporationInventors: Norihiro Hirano, Norimasa Kurihara, Atsushi Sudo, Yasuyuki Yoshimura
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Patent number: 6663851Abstract: A product obtained by treating surface-modified, pyrogenically produced titanium dioxide with at least one ammonium-functional silane, such as by spraying the pyrogenically produced titanium dioxide with the at least one silane, alone or in ethanol solution, and tempering, and useful in the field of cosmetics in sunblocks, in toner powders, in paints and varnishes, in silicone rubber, as abrasives and polishes, for example, in the field of CMP.Type: GrantFiled: June 29, 2000Date of Patent: December 16, 2003Assignee: Degussa AGInventors: Klaus Deller, Dieter Kerner, Juergen Meyer
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Publication number: 20030223940Abstract: A particulate metal oxide having a mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.Type: ApplicationFiled: December 20, 2002Publication date: December 4, 2003Applicant: Imperial Chemical Industrial PLCInventors: Graham Paul Dransfield, Susan Cutter, Philip Laurence Lyth
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Patent number: 6648956Abstract: The invention relates to a nondusting, solvent-containing homogeneous pigment preparation that includes ≧70% by weight of one or more effect pigments 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 to 100 and a surface tension (ST) of ≦35 mN/m and optionally 0-5% by weight of a surface-active substance.Type: GrantFiled: November 20, 2000Date of Patent: November 18, 2003Assignee: Merck Patent Gesellschaft mit beschraenkter HaftungInventors: Wolfgang Hechler, Gerhard Herget, Brigitte Husseini, Sabine Schoen
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Patent number: 6638353Abstract: The invention relates to a non-dusting homogeneous pigment preparation notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 50% by weight of water and/or an organic solvent or solvent mixture and from 0.5 to 59.5% by weight of a styrene-modified maleate resin having an acid number >90 mg KOH/g, and to its use in particular to produce dry preparations.Type: GrantFiled: April 1, 2002Date of Patent: October 28, 2003Assignee: Merck Patent GmbHInventors: Thomas Rathschlag, Carsten Griessmann
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Patent number: 6632274Abstract: By incorporating and dispersing infrared ray shielding ultrafine particles having an average particle size of from 10 to 60 nm and a volume ratio of ultrafine particles having particle sizes of at least 60 nm being at most 15% of all particles, in a plasticizer, it is possible to obtain an ultrafine particle dispersion composition having the ultrafine particles uniformly dispersed. By using this composition, it is possible to obtain a laminated glass or an interlayer of a laminated glass, which has a small haze value and which is excellent in the infrared ray shielding performance.Type: GrantFiled: June 17, 2002Date of Patent: October 14, 2003Assignees: Asahi Glass Company, Fuji Titanium Industry Co., Ltd.Inventors: Yoshimi Kawamoto, Fuminori Osako, Hitoshi Okada, Kuniko Nagai
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Patent number: 6627336Abstract: An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Brønsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predominantly comprised of brookite titanium oxide particles. The aqueous titanium oxide dispersion is prepared by hydrolyzed titanium tetrachloride in the presence of at least one kind of a Brønsted acid. A thin film formed from this aqueous titanium oxide dispersion exhibits good photo-catalytic activity, transparency and adhesion to a base material.Type: GrantFiled: February 16, 2001Date of Patent: September 30, 2003Assignee: Showa Denko Kabushiki KaishaInventors: Masahiro Ohmori, Hidenori Nakamura
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Publication number: 20030178165Abstract: A paper having an improved print quality comprises a paper substrate having a surface with a surface roughness of less than 6 microns and a surface gloss of 5-80% which surface has been coated with a light-weight, low solids content, top coat. The top coat may comprise (i) a rheology modifier/binder component and at least one pigment or (ii) at least one binder coated pigment. The top coat provides a significant improvement to the delta gloss of the so-treated paper.Type: ApplicationFiled: March 6, 2003Publication date: September 25, 2003Inventors: Barrett Richard Bobsein, James Tinney Brown, Zhenwen Fu, Janet Drobits Windisch