Bismuth, Vanadium, Molybdenum, Or Tungsten Compound Containing (bi, V, Mo, Or W) Patents (Class 106/479)
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Patent number: 7659221Abstract: A colorant for a high redox glass composition comprising: total iron (Fe2O3) 0 to 1.1 weight percent; and from 0.0001 to 0.15 weight percent of at least one of the following: Cu nanostructures, Au nanostructures, or Ag nanostructures, wherein the weight percents are based on the total weight of the glass composition. The colorant of the invention can be used to make glass compositions having various colors.Type: GrantFiled: January 21, 2008Date of Patent: February 9, 2010Assignee: PPG Industries Ohio, Inc.Inventors: Mehran Arbab, Larry Shelestak, Songwei Lu
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Publication number: 20100000445Abstract: An object of the present invention is to provide a metal pigment composition having the characteristics that aging stability is excellent, reductions of brightness, masking and flip flop appearance are little, and storage stability is excellent. The present invention is directed to a metal pigment composition containing a metal pigment treated with at least one of organic molybdenum compounds, or a metal pigment composition containing a metal pigment treated with at least one of organic molybdenum compounds, and at least one agent selected from the groups consisting of an anti-oxidizing agent, an anti-reducing agent and a photostabilizer.Type: ApplicationFiled: July 2, 2008Publication date: January 7, 2010Inventors: Kazuko Nakajima, Shigeki Katsuta
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Patent number: 7611815Abstract: An external additive for a toner for electrophotography which contains oxide fine particles which contain silicon, in which the oxide fine particles have a primary particle diameter of 30 nm to 300 nm in number average, a standard deviation ? of a particle size distribution of the primary particle diameter satisfies a relation of: R/4???R, in which the R expresses the primary particle diameter, the oxide fine particles are substantially spherical having a circularity SF1 defined as equation (1) of 100 to 130 and a circularity SF2 defined as equation (2) of 100 to 125; SF1=(L2/A)×(?/4)×100??equation (1) SF2=(P2/A)×(1/4?)×100??equation (2), in the equations, “L” expresses the absolute maximum length of the oxide fine particles; “A” expresses a projected area of the oxide fine particles; and “P” expresses a maximum perimeter of the oxide fine particles.Type: GrantFiled: July 15, 2003Date of Patent: November 3, 2009Assignee: Ricoh Company, Ltd.Inventors: Hideki Sugiura, Satoshi Mochizuki, Kazuhiko Umemura, Shinya Nakayama, Yasuo Asahina
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Publication number: 20090208658Abstract: The present invention is directed to pigment compositions, thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).Type: ApplicationFiled: April 29, 2009Publication date: August 20, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Jerome David Smith, Pedro A. Jimenez, Tony Jackson
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Publication number: 20090169499Abstract: The present invention relates to pigments, the particles of which generally have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm, and a thickness of from 20 nm to 2 ?m, and a ratio of length to thickness of at least 2:1, wherein the particles contain a core of SiO2 or a silicon/silicon oxide obtained by heating SiOy flakes with 1.1?y?1.8 in an oxygen-free atmosphere at a temperature of at least 400° C., which core has a narrow distribution of particle sizes and two substantially parallel faces, the distance between which is the shortest axis of the core, and a material layer having a high index of refraction a metal oxide; a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass.Type: ApplicationFiled: February 26, 2009Publication date: July 2, 2009Inventors: Patrice Bujard, Holger Leybach
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Patent number: 7550041Abstract: The invention pertains to a highly concentrated pigment comprising from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight of the composition, of a pigment; from 0 to 20% by weight, preferably from 5 to 18% by weight, based on the weight of the composition, of a resin; the total of pigment and resin being from 85 to 98% by weight of the composition; and from 1 to 15% by weight, preferably from 2 to 15% by weight, most preferably from 5 to 15% by weight, based on the weight of the composition, of a C10-C18 alcohol, a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa, or both a C10-C18 alcohol and a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa. Also claimed are a process for its manufacture, comprising dry-milling, blending and kneading the components, and the use of the pigment concentrates for the preparation of a masterbatch, ink, coating, plastic material, toner or colour filter.Type: GrantFiled: October 24, 2005Date of Patent: June 23, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Healy, Lynda Cannon, Tracy Murray
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Patent number: 7517403Abstract: The invention relates to novel colorants based on bismuth oxyhalide and bismuth oxycarboxylates, bismuth oxyenolates or bismuth oxysulfonates and to the use thereof as pigments and coating agents. They are preferably solid solutions, especially solid solutions mainly in the tetragonal crystal lattice of bismuth oxyhalide.Type: GrantFiled: May 3, 2004Date of Patent: April 14, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Martin Müller, Didier Bauer
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Publication number: 20090078153Abstract: A corrosion inhibiting pigment includes nanoscale reservoirs (nanoreservoirs) of corrosion inhibitor for active corrosion protection of metallic products and structures, wherein the nanoreservoirs include a polymer or polyelectrolyte shell which is sensitive to a specific trigger and capable of releasing the inhibitor after action of the trigger. An anti-corrosive coating with self-healing properties includes the pigment, methods for preparing the pigment, in particular by layer-by-layer deposition, as well as methods of use of the pigment.Type: ApplicationFiled: March 7, 2007Publication date: March 26, 2009Applicant: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., a corporation of GermanyInventors: Dmitry Shchukin, Helmuth Mohwald, Mario Guerreiro Silva Forreira, Mikhail Zheludkevich
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Patent number: 7503970Abstract: 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: April 13, 2007Date of Patent: March 17, 2009Assignee: Croda International PLCInventors: Graham Paul Dransfield, Susan Cutter, Phillip Laurence Lyth
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Patent number: 7481876Abstract: The present invention relates to compounds on apatite basis, having the general formula M5 (AO4)3X wherein X is situated in the hexagonal channels of the apatite structure and includes Cu-atoms, processes for the preparation thereof as well as applications of these compounds. The compounds presented herein are particularly useful as pigments.Type: GrantFiled: June 27, 2003Date of Patent: January 27, 2009Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften E.V.Inventors: Pavel E. Kazin, Andrei S. Karpov, Martin Jansen
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Publication number: 20090020042Abstract: The present invention relates to the use of nanoparticles for the preparation of water-based dispersion adhesives, and especially the use of finely divided barium sulfate therein. The nanoparticles can be used with or without chemical modification. Adhesives of this kind feature improved properties, examples being improved cohesion in conjunction with comparable adhesion and higher heat resistance. Preference is given to dispersion adhesives based on polyacrylate, polyurethane, and epoxy resin.Type: ApplicationFiled: February 5, 2007Publication date: January 22, 2009Applicant: Solvay Infra Bad Hoenningen GmbHInventors: David-Christopher Glende, Karl Kohler, Jai-Won Park, Ferdinand Hardinghaus
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Publication number: 20090017082Abstract: This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer.Type: ApplicationFiled: February 9, 2007Publication date: January 15, 2009Inventors: Taro Morimitsu, Takayuki Nakao, Yoshiki Hashizume, Hideaki Minamiyama, Masakazu Nakamura
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Publication number: 20090004390Abstract: The present invention is directed to pigment compositions, thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).Type: ApplicationFiled: June 28, 2007Publication date: January 1, 2009Inventors: Jerome David Smith, Pedro A. Jimenez, Tony Jackson
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Publication number: 20080305184Abstract: The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiO2 lamellae, Fe2O3 lamellae or Al2O3 lamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.Type: ApplicationFiled: June 30, 2005Publication date: December 11, 2008Inventors: Dieter Heinz, Ralf Anselmann, Klaus Boehm, Sabine Schoen
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Patent number: 7455726Abstract: The present invention relates to photostabilised effect pigments in which one or more calcined and vanadium-containing oxide layers, alone or mixed with sulfates, borates or phosphates, have been applied to a substrate, to a process for the preparation thereof, and to the use thereof in plastics, paints, coatings, printing inks, cosmetics, films, in security printing, for laser marking, in thermal protection or for colouring seed.Type: GrantFiled: April 27, 2004Date of Patent: November 25, 2008Assignee: Merck Patent GmbHInventors: Ulrich Schoenefeld, Padma Kaviratna
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Publication number: 20080171818Abstract: A treated pigment comprising: (a) an inorganic pigment; (b) an organic compound comprises a fluoroalkyl group and a hydrocarbon group and having the structure: RH-L-RF, wherein RF is a fluorochemical component containing at least one Zerewitinoff hydrogen; RH is an aliphatic group of 1-30 carbons, cycloaliphatic group of 3-30 carbons, an aromatic group of 6-30 carbons, or a group having the structure: R?—(OCH2CHR?)x?—(OCH2CH2)y?—O—, wherein R? is H or an aliphatic group of 1-20 carbons, R? is H or methyl; and x? and y? are the same or different integers ranging from 0-20 except that the sum of x? and y? is at least 1 when R? is H; and L is selected from the group CO, isocyanate, and a mixture of polyisocyanates containing at least three isocyanate groups per RH-L-RF structure. Plastic articles containing a pigment and the organic compound have improved cleanability with all the other needed properties and without the negative property of chaulking.Type: ApplicationFiled: March 16, 2006Publication date: July 17, 2008Inventor: Donald Douglas May
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Patent number: 7341626Abstract: A pigment composition containing one or more, organic yellow pigments selected from the group C.I. Pigment Yellow (213), Pigment Yellow (214) and disazo pigment of the formula (I) and containing one or more inorganic pigments.Type: GrantFiled: August 18, 2004Date of Patent: March 11, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Joachim Weber, Gerhard Wilker
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Publication number: 20080035017Abstract: The present invention relates to a process for preparing a pearl pigment, comprising the steps of (a) adding an aqueous solution of metal oxide to a substrate in a reactor and (b) adding ammonium bicarbonate aqueous solution as a precipitating agent.Type: ApplicationFiled: December 11, 2006Publication date: February 14, 2008Applicant: Hyundai Motor CompanyInventor: Eun Young Chung
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Patent number: 7318862Abstract: The present invention relates to stabilized BiOCl pigments in which BiOCl is coated with one or more polymers and oxides, oxide hydrates or hydroxides of silicon, to a process for the production of the stabilized BiOCl pigments, and to the use thereof.Type: GrantFiled: May 10, 2005Date of Patent: January 15, 2008Assignee: Merck Patent GmbHInventors: Griessmann Carsten, Rathschlag Thomas
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Patent number: 7316741Abstract: Described herein are ceramic colorants consisting of suspensions of particles of nanometric dimensions, their production and use.Type: GrantFiled: March 6, 2003Date of Patent: January 8, 2008Assignee: Colorobbia Italia S.p.A.Inventors: Giovanni Baldi, Marco Bitossi, Andrea Barzanti
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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: 7141111Abstract: Described herein are embedded pigments consisting of a labile chromophore englobed in a coating of refractory and transparent material formed by nanomolecular particles, also described are oxides of refractory and transparent materials in the form of nanoparticles and their use for coating labile chromophores or ceramic surfaces.Type: GrantFiled: March 6, 2003Date of Patent: November 28, 2006Assignee: Colorobbia Italia S.P.A.Inventors: Giovanni Baldi, Andrea Barzanti, Marco Bitossi
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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: 6966998Abstract: A method of providing covert security features for documents such as vouchers, packaged goods and banknotes in which the document is provided with a dopant. The dopant consisting of a material which can be identified by examination of its response to visible wavelength photon radiation and which can be applied directly on or into the document or can be fused into glass matrices before application.Type: GrantFiled: November 8, 1999Date of Patent: November 22, 2005Inventor: Alexander Rollo Spowart
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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: 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: 6866710Abstract: The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO2 layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as tracers, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.Type: GrantFiled: December 17, 2003Date of Patent: March 15, 2005Assignee: Merck Patent GmbHInventors: Lilia Heider, Martin Knapp, Gisela Lenz, Norbert Rick
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Patent number: 6811601Abstract: Pigment preparations comprising A) at least one organic or inorganic pigment and B) at least one ethoxylated and propoxylated and/or butoxylated polyethyleneimine.Type: GrantFiled: November 25, 2002Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Oliver Borzyk, Jürgen Huff, Manfred Mielke, Rüdiger Sens
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Patent number: 6800127Abstract: The present invention relates to pigment preparations comprising polyamide particles with an average particle size of below 50 &mgr;m and a pigment of an average particle size below 0.2 &mgr;m. The inventive pigment preparations are useful for coloring high molecular weight material, like coatings, inks and in particular plastics like polyvinyl chloride, polyamide, polyester, polycarbonate and, especially polyamide fibers.Type: GrantFiled: April 29, 2003Date of Patent: October 5, 2004Assignee: Ciba Specialty Chemicals CorporationInventor: Fridolin Bäbler
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Publication number: 20040182284Abstract: Thermochromic material comprising a thermochromic component and a binder, wherein the thermochromic component is crystal phases based on oxides of heavy metals of I, II, III, IV, V, VI, VII, VIII groups of the Periodic System selected from the group consisting of compounds of the following general formulae:Type: ApplicationFiled: May 17, 2004Publication date: September 23, 2004Inventors: Anna Vasilievna Belykh, Alexandr Mikhailovich Efremov, Mikhail Dmitrievich Mikhailov
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Publication number: 20040177789Abstract: The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO2 layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as tracers, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.Type: ApplicationFiled: December 17, 2003Publication date: September 16, 2004Inventors: Lilia Heider, Martin Knapp, Gisela Lenz, Norbert Rick
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Patent number: 6773499Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.Type: GrantFiled: March 24, 2003Date of Patent: August 10, 2004Assignee: Merck Patent GmbHInventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Johann Munz
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Patent number: 6767396Abstract: A process for preparing an aqueous ink-jet ink composition for MICR applications is provided comprising preparing a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles. Special processing involving the use of conventional and non-conventional grinding techniques and various filtration techniques enhance the compatibility of the MICR ink-jet ink with the ink-jet equipment, resulting in superior ink life and print quality.Type: GrantFiled: July 1, 2002Date of Patent: July 27, 2004Assignee: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder, Jr.
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Patent number: 6746527Abstract: An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, at least one surfactant to aid in the aid in the dispersion of the metal oxide particles. Particularly, the surfactant component is a combination of an anionic surfactant and an anionic-nonionic surfactant, or may be a combination of other types of surfactants.Type: GrantFiled: March 26, 2003Date of Patent: June 8, 2004Assignee: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder, Jr., Ronald E. Coutta
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Patent number: 6743285Abstract: The present invention relates to pigment mixtures in the form of a dispersion or powder, consisting of at least two components, where component A comprises coated or uncoated BiOCl pigments in the form of a powder or dispersion, and component B comprises pearlescent pigments, platelet-shaped, needle-shaped or spherical colorants and/or fillers, and to the use thereof in paints, coatings, printing inks, plastics, powder coatings, plastic films, for the finishing of seed and in particular in cosmetic formulations.Type: GrantFiled: February 28, 2002Date of Patent: June 1, 2004Assignee: Merck Patent GmbHInventors: Ralf Anselmann, Uta Hillgärtner, Sabine Schoen
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Patent number: 6730156Abstract: A filler comprising a substantially amorphous cluster comprising non-heavy metal oxide particles and heavy metal oxide. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character.Type: GrantFiled: October 28, 1999Date of Patent: May 4, 2004Assignee: 3M Innovative Properties CompanyInventors: Mark Steven Windisch, Xiaodong Zhang, Richard Paul Rusin, Sumita Basu Mitra
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Patent number: 6726759Abstract: An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles. Also provided are various processing techniques to enhance the MICR ink performance, including conventional and non-conventional grinding techniques and various filtration techniques.Type: GrantFiled: July 1, 2002Date of Patent: April 27, 2004Assignee: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder, Jr.
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Patent number: 6719837Abstract: The present invention relates to pearlescent pigments based on substrates coated with one or more layers of nitrides or oxynitrides to a method for the production of such pigments and their use in plastics, paints, coatings, powder coatings, inks, printing inks, glasses, ceramic products, agriculture foils, for lasermarking of papers and plastics, security applications and in cosmetic formulations.Type: GrantFiled: January 31, 2003Date of Patent: April 13, 2004Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Stéphane Bertaux, Peter Reynders, Jens-Uwe Wichmann, Eberhard Schweda
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Patent number: 6719838Abstract: The present invention relates to colored interference pigments based on multicoated, platelet-shaped substrates, which are distinguished in that they comprise (A) a colored coating having a refractive index of n>1.8, (B) a colorless coating having a refractive index of n>1.8, (C) a colorless coating having a refractive index of n≦1.8, (D) a colorless coating having a refractive index of n>1.8, and optionally (E) an outer protective layer, and to their use in paints, surface coatings, printing inks, plastics, ceramic materials, glasses, for laser marking, in cosmetic formulations and for the production of pigment preparations and dry preparations.Type: GrantFiled: October 24, 2002Date of Patent: April 13, 2004Assignee: Merck Patent GmbHInventors: Lilia Heider, Manuela Loch, Nicole Schupp, Helge Kniess
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Patent number: 6706785Abstract: Platelet-shaped substrates that are coated with metal oxides and that are useful in the laser marking of plastics are disclosed. The platelet-shaped substrates may be employed as an additive to plastic for laser marking of a wide variety of plastics and for use with a number of different laser types.Type: GrantFiled: February 18, 2000Date of Patent: March 16, 2004Assignee: Rona/EMI Industries, Inc.Inventor: Guoyi Fu
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Patent number: 6686042Abstract: Pigment flakes are provided which can be used to produce colorant compositions having color shifting properties. The pigment flakes can have a symmetrical coating structure on opposing sides of a reflector layer, can have an asymmetrical coating structure with all of the layers on one side of the reflector layer, or can be formed with encapsulating coatings around a reflector layer. The coating structure includes a selective absorbing layer on one or more sides of the reflector layer, a dielectric layer on the selective absorbing layer, and an absorber layer on the dielectric layer. The pigment flakes exhibit a discrete color shift such that the pigment flakes have a first color at a first angle of incident light or viewing and a second color different from the first color at a second angle of incident light or viewing. The pigment flakes can be interspersed into liquid media such as paints or inks for subsequent application to objects or papers.Type: GrantFiled: September 22, 2000Date of Patent: February 3, 2004Assignee: Flex Products, Inc.Inventor: Charlotte R. LeGallee
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Publication number: 20040011252Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems.Type: ApplicationFiled: January 13, 2003Publication date: January 22, 2004Inventors: Jeffrey A. Sturgill, Andrew Wells Phelps
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Patent number: 6680121Abstract: The present invention relates to additive, pigment or colorant materials which may be used for laser marking. The materials comprise oxides of bismuth and at least one additional metal. Preferred laser-markable bismuth-containing oxide compounds are of the formula BixMyOz, where M is at least one metal selected from Zn, Ti, Fe, Cu, Al, Zr, P, Sn, Sr, Si, Y, Nb, La, Ta, Pr, Ca, Mg, Mo, W, Sb, Cr, Ba and Ce, x is from about 0.3 to about 70, y is from about 0.05 to about 8, and z is from about 1 to about 100. The bismuth-containing material may be dispersed in a substrate which is subsequently irradiated by a laser to provide a contrasting mark in the irradiated region.Type: GrantFiled: December 18, 2002Date of Patent: January 20, 2004Assignee: DMC2 Degussa Metals Catalysts Cerdec AGInventors: George Emil Sakoske, Joseph E. Sarver
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Publication number: 20040003756Abstract: An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles.Type: ApplicationFiled: July 1, 2002Publication date: January 8, 2004Applicant: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder
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Publication number: 20040000254Abstract: A process for preparing an aqueous ink-jet ink composition for MICR applications is provided comprising preparing a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles. Special processing involving the use of conventional and non-conventional grinding techniques and various filtration techniques enhance the compatibility of the MICR ink-jet ink with the ink-jet equipment, resulting in superior ink life and print quality.Type: ApplicationFiled: July 1, 2002Publication date: January 1, 2004Applicant: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder
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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: 6632275Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being Sio2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.Type: GrantFiled: November 28, 2000Date of Patent: October 14, 2003Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Sabine Schoen, Reiner Vogt, Norbert Schül, Karl Osterried, Johann Munz
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Publication number: 20030177950Abstract: The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.Type: ApplicationFiled: March 24, 2003Publication date: September 25, 2003Applicant: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Sabine Schoen, Reiner Vogt, Norbert Schul, Karl Osterried, Johann Munz
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Publication number: 20030170395Abstract: The present invention refers to a mixing scheme containing a plurality of pigmented base paint compositions having defined colors and optionally one or more non-pigmented base paint compositions comprising at least one rheology controlled base paint composition containing at least one pigment selected from the group consisting of inorganic pigments, di-keto-pyrrolo-pyrrole type pigments, organic liquid crystal type pigments and carbon black and having the following rheology profileType: ApplicationFiled: January 27, 2003Publication date: September 11, 2003Inventors: William James Highcock, Graham Stuart Kay, David Robert Fenn
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Publication number: 20030158316Abstract: A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functional groups reactive with the crosslinking agent; and (iii) 5 to 85 percent by volume of particles having a mean particle size less than 100 nm. The particles comprise 1 to 99 percent by weight of at least one metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron.Type: ApplicationFiled: February 6, 2003Publication date: August 21, 2003Inventors: Noel R. Vanier, Calum H. Munro