Nickel, Cobalt, Copper, Or Cadmium Compound Containing (ni, Co, Cu, Cd) Patents (Class 106/440)
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Publication number: 20140261085Abstract: A compound or a pigment comprising a compound where there is simultaneous substitution of more or more elements onto both the A and B sites of a pyrochlore lattice or a lattice related to a pyrochlore. The pigment comprises a compound with the formula of AyA?y?BxB?x?Zp. Elements A and A? have a valence of 1, 2, or 3; and are selected from the elements of groups 1, 2, 12, 13, 14, 15, and the first row of transition metals, excluding H, Pb, Cd, Hg, N, As, and Tl. Elements B and B? have a valence of 3, 4, 5, or 6; and are selected from the elements of the first, second, or third row of transition metals, groups 13, 14, and 15, excluding V, C, Pb, and Tl. Element Z is selected from O, F, N, a chalcogen, S, Se, hydroxide ion, and mixtures thereof.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: The Shepherd Color CompanyInventors: Simon K. Boocock, Andrew E. Smith, Miroslav Trojan
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Patent number: 8808447Abstract: The present invention relates to a pigment paint for an exterior material and to a method for manufacturing the same. The pigment paint comprises: a flake matrix, a first metal oxide layer coated on the upper portion of the transparent matrix, an oxide layer containing MgO—SiO2 coated on the upper portion of the first metal oxide layer, and a second metal oxide layer coated on the upper portion of the oxide layer. In order to ensure humidity resistance and weather resistance required for a lustrous pigment paint for exterior materials, a cerium layer and an aluminum oxide layer are further coated. Properties such as high luminance, high chromaticity, and high gloss, which could not be achieved using conventional techniques, can be achieved and a pigment paint having a multi-colored pearl luster can be provided.Type: GrantFiled: March 8, 2012Date of Patent: August 19, 2014Assignee: CQV Co., Ltd.Inventors: Jae-Il Jeong, Nam-Il Lee, Sang-Keun Park, Jin-Hyung Lee, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang
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Publication number: 20140057112Abstract: Pigment compositions are described that advantageously increase total solar reflectance. Also described are methods of making pigment compositions. The pigment compositions can contain copper oxide; copper antimony oxides, copper bismuth oxides, or combinations thereof; and alkaline earth metal oxides, early-transition metal oxides, post-transition metal oxides, metalloid (semi-metal) oxides, rare-earth metal oxides, or combinations thereof.Type: ApplicationFiled: May 9, 2012Publication date: February 27, 2014Applicant: FERRO CORPORATIONInventor: Wei Lang
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Patent number: 8518174Abstract: Under the presence of at least one out of copper, manganese, nickel, cobalt, iron, zinc, and compounds thereof, a tetravalent titanium salt solution and a basic solution are reacted together to form a hydroxide of titanium and the above metal, and then the titanium hydroxide is peroxidated with an oxidizing agent to manufacture an aqueous liquid or dispersion having titania-metal composite having peroxy groups, and not having a photocatalytic activity fine particles dispersed therein, wherein the titania-metal composite includes particles of at least one of elemental copper, manganese, nickel, cobalt, iron, zinc and compounds thereof; using this to form a coating film, a drop in decorativeness of color due to fading or discoloration of a coating material, a printed article, a building material, a fiber, an organic polymer resin product or the like can be prevented, and moreover surface anti-soiling and hydrophilic properties can be realized.Type: GrantFiled: August 24, 2011Date of Patent: August 27, 2013Assignee: Sustainable Titania Technology IncorporatedInventors: Shiro Ogata, Yoshimitsu Matsui
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Patent number: 8409343Abstract: An organic-inorganic hybrid pigment composition is provided comprising an organic pigment, an inorganic pigment, and a fibrous clay. The fibrous clay can be selected from palygorskite, sepiolite, or a combination thereof. The inorganic pigment is selected from rutile pigments, spinel pigments, bismuth vanadate pigments, cerium sulfide pigments, and combinations thereof. The organic pigment is selected from anthraquinone pigments, anthrathrone pigments, anthrapyrimidine pigments, azo pigments, azomethine pigments, quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrol pigments, inanthrone pigments, isoindoline pigments, metal complex pigments, perinone pigments, perylene pigments, phthalocyanine pigments, pyranthrone pigments, pyrazolo-quinazolone pigments, thioindigo pigments, and combinations thereof.Type: GrantFiled: January 21, 2009Date of Patent: April 2, 2013Assignee: Mayan Pigments, Inc.Inventors: Lori A. Niewold, Robyn Torres, Gary E. Williams
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Patent number: 8404204Abstract: The present invention is directed to a granulate having photocatalytic activity, comprising particles of an inorganic particulate material coated with a photocatalytically active compound for introducing photocatalytic activity into or on building materials. The invention is further related to the manufacture of such a granulate and its use into or on building materials such as cement, concrete, gypsum and/or limestone and water-based coatings or paints for reducing an accumulation and growth of microorganisms and environmental polluting substances on these materials and thus reducing the tendency of fouling, while the brilliance of the color is maintained and the quality of the air is improved.Type: GrantFiled: March 31, 2008Date of Patent: March 26, 2013Assignee: Rockwood Italia SpAInventors: Marino Sergi, Christian Egger
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Patent number: 8377194Abstract: A silica-containing composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yMzSaF.B. M comprises at least one metal or metalloid cation S is a sulfur-based species. F optionally exists and F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of about 0.01 to about 100%. The molar ratio of y/x is equal to about 0.01 to about 0.5, the molar ratio of x/z is equal to about 0.5 to about 300 or from about 0.5 to about 100, and the molar ratio of a/z is about 0.5 to about 5. B is a hygroscopic solid at a water to solid molar ratio of 0.1-6 and preferably comprises at least one alkaline earth oxide or lanthanide oxide.Type: GrantFiled: September 23, 2011Date of Patent: February 19, 2013Assignee: Nalco CompanyInventors: Nicholas S. Ergang, Ian Saratovsky, Hung-Ting Chen
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Patent number: 8333835Abstract: A silica-containing composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yMzSaF. M comprises at least one metal or metalloid cation S is a sulfur-based species optionally exists and F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of about 0.01 to about 100%. The molar ratio of y/x is equal to about 0.01 to about 0.5, the molar ratio of x/z is equal to about 0.5 to about 300 or from about 0.5 to about 100, and the molar ratio of a/z is about 0.5 to about 5.Type: GrantFiled: September 23, 2011Date of Patent: December 18, 2012Assignee: Nalco CompanyInventors: Nicholas S. Ergang, Bruce A. Keiser, Richard Mimna
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Publication number: 20120160130Abstract: A tinting system for producing a defined number of shades of a paint ready for use characterized by: (a) a dye set, (b) a color identification means, and (c) plurality of metering means for accommodating a shade component, and a brightening component. Each metering means being designed to manually meter the respective dye component and to exactly reproduce the number of shades defined by the color identification means.Type: ApplicationFiled: June 1, 2010Publication date: June 28, 2012Applicant: HEUBACH GMBHInventor: Rainer Heubach
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Patent number: 8158270Abstract: Under the presence of at least one out of copper, manganese, nickel, cobalt, iron, zinc, and compounds thereof, a tetravalent titanium salt solution and a basic solution are reacted together to form a hydroxide of titanium and the above metal, and then the titanium hydroxide is peroxidated with an oxidizing agent to manufacture an aqueous liquid or dispersion having therein titanium oxide fine particles having peroxy groups; by using this alone to form a coating film adjacent to a coating film of an organic dye or pigment, or using this to form a coating film together with an organic dye or pigment, a drop in decorativeness of color due to fading or discoloration of a coating material, a printed article, a building material, a fiber, an organic polymer resin product or the like can be prevented, and moreover surface anti-soiling and hydrophilic properties can be realized.Type: GrantFiled: August 24, 2011Date of Patent: April 17, 2012Assignee: Sustainable Titania Technology IncorporatedInventors: Shiro Ogata, Yoshimitsu Matsui
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Patent number: 8025976Abstract: Under the presence of at least one out of copper, manganese, nickel, cobalt, iron, zinc, and compounds thereof, a tetravalent titanium salt solution and a basic solution are reacted together to form a hydroxide of titanium and the above metal, and then the titanium hydroxide is peroxidated with an oxidizing agent to manufacture an aqueous liquid or dispersion having therein titanium oxide fine particles having peroxy groups; by using this alone to form a coating film adjacent to a coating film of an organic dye or pigment, or using this to form a coating film together with an organic dye or pigment, a drop in decorativeness of color due to fading or discoloration of a coating material, a printed article, a building material, a fiber, an organic polymer resin product or the like can be prevented, and moreover surface anti-soiling and hydrophilic properties can be realized.Type: GrantFiled: November 4, 2003Date of Patent: September 27, 2011Assignee: Sustainable Titania Technology IncorporatedInventors: Shiro Ogata, Yoshimitsu Matsui
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Patent number: 7951420Abstract: A method of preparing a pigment exhibiting a color-shifting effect, including at least heating mica powder suspension in water, adjusting the pH value of the mixture to between 2 and 9, adding a first inorganic salt solution, maintaining the pH value of the mixture constant, stirring the mixture at constant temperature, adjusting the pH value of the mixture to between 6 and 14, adding a second inorganic salt solution, maintaining the pH value of the mixture constant, stirring the mixture at constant temperature, adjusting the pH value of the mixture to between 2 and 9, adding a third inorganic salt solution, maintaining the pH value of the mixture constant, and stirring the mixture at constant temperature.Type: GrantFiled: September 26, 2009Date of Patent: May 31, 2011Inventors: Jiansheng Fu, Yiting Peng, Xiaohui Tian
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Patent number: 7883777Abstract: The invention relates to solar energy shielding window film laminates exhibiting visual light transmittance in the range of 5 to 80% with minimum progressive fading or degradation of reflective quality wherein base polyester films have a layer of adhesive sandwiched there between, the adhesive layer containing dispersed mixed metal oxides as solar-energy-screen particles optionally in combination with rare earth hexaborides, antimony containing metal oxide, indium containing metal oxide, titanium nitride, or carbon particles either singly or in combinations thereof.Type: GrantFiled: July 31, 2006Date of Patent: February 8, 2011Assignee: Garware Polyester Ltd.Inventors: Shashikant Bhalchandra Garware, Mohan Sitaram Adsul
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Patent number: 7833331Abstract: Corrosion-inhibiting pigments based on cobalt are described that contain a trivalent or tetravalent cobalt/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent cobalt ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent cobalt 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. Cobalt/valence stabilizer combinations are chosen based on the well-founded principles of cobalt coordination chemistry. Many cobalt-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.Type: GrantFiled: August 2, 2007Date of Patent: November 16, 2010Assignee: University of DaytonInventors: Jeffrey Allen Sturgill, Andrew Wells Phelps, Joseph Thomas Swartzbaugh
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Patent number: 7749321Abstract: 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: GrantFiled: June 28, 2007Date of Patent: July 6, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Jerome D. Smith, Pedro A. Jimenez, Tony Jackson
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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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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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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: 7291217Abstract: A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium 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. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.Type: GrantFiled: July 23, 2003Date of Patent: November 6, 2007Assignee: University of DaytonInventors: Andrew Wells Phelps, Jeffrey Allen Sturgill, Joseph Thomas Swartzbaugh
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Patent number: 7018465Abstract: A spray glaze or opaque composition for coating dental restorations and other surfaces and objects such as hobby ceramics that comprises about 4 to about 50 weight % glaze material, about 5 to about 60 weight % restoration wetting agent, and about 10 to about 90% non CFC propellant. An opaque composition further comprises about 5 to about 30% opaque material.Type: GrantFiled: July 17, 2003Date of Patent: March 28, 2006Assignee: Enamelite, LLCInventors: Phillip G. Pitts, James R. Vinson
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Patent number: 7005002Abstract: Branched, amorphous, polyester-based macropolyols having a narrow molecular weight distribution and a process for making the macropolyol.Type: GrantFiled: May 5, 2004Date of Patent: February 28, 2006Assignee: Degussa AGInventors: Patrick Glöckner, Giselher Franzmann, Martin Schmitthenner
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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: 6875264Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack.Type: GrantFiled: January 17, 2003Date of Patent: April 5, 2005Assignee: Engelhard CorporationInventors: Curtis J. Zimmermann, Daniel Stevenson Fuller
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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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Publication number: 20030181329Abstract: A method of producing composite particles of titanium dioxide and a compound inactive as a photocatalyst, comprising the steps of preparing a water based slurry of pH 3 to 5 comprising titanium dioxide, preparing a water based solution comprising a compound inactive as a photocatalyst, and reacting the slurry and the water based solution together at a pH within a range from 4 to 10 is provided, together with highly active photocatalyst particles produced using such a method, and potential uses of such photocatalyst particles.Type: ApplicationFiled: December 19, 2002Publication date: September 25, 2003Applicant: SHOWA DENKO K.K.Inventors: Jun Tanaka, Masayuki Sanbayashi, Yoshinori Ueyoshi
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Patent number: 6596073Abstract: The invention relates to a solid pigment composition comprising a) at least one pigment, b) at least one compound selected from the group consisting of b0) a phenol-styrene-polyglycol ether or an ionically modified phenol-styrene-polyglycol ether, b1) a condensation product prepared from b1A) sulphonated aromatics b1B) aldehydes and/or ketones and b1C) optionally one or more compounds selected from the group of unsulphonated aromatics, urea and urea derivatives, and b2) phosphoric acid, phosphonic acid and derivatives thereof, and c) at least one organic thickener.Type: GrantFiled: August 6, 2001Date of Patent: July 22, 2003Assignee: Bayer AktiengesellschaftInventors: Peter Roger Nyssen, Josef Witt
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Patent number: 6582506Abstract: Pigment flakes having cores preferably composed of resins, polymers, thermoplastics, and/or thermosets with colorant (pigment and/or dyes) deposited thereon, coating applications thereof, and a method for making pigment flakes which includes providing a core material, compounding the core material, processing the core material into uniform forms such as films, wires, thread with rectangular cross sections and bead strings, providing colorant material, vaporizing the colorant material, exposing a surface of core material to the vaporized colorant material to form a layer of colorant on thereon, and fracturing the resultant colorant layered core material into flakes.Type: GrantFiled: May 25, 2001Date of Patent: June 24, 2003Assignee: Hampden Papers, Inc.Inventor: Michael E. Archambeault
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Publication number: 20030097965Abstract: The present invention relates to coloured interference pigments based on multicoated, platelet-shaped substrates, which are distinguished in that they compriseType: ApplicationFiled: October 24, 2002Publication date: May 29, 2003Applicant: Merck Patent GmbHInventors: Lilia Heider, Manuela Loch, Nicole Schupp, Helge Kniess
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Patent number: 6540824Abstract: The present invention provides a yellow pigment which contains a titanium-iron complex oxide of the pseudo-brookite type and produces a stabilized color more yellowish than conventionally and which is universally usable for coloring plastics, ceramics and coating compositions. The pigment of the invention is a titanium-iron complex oxide pigment which contains a pseudo-brookite complex oxide represented by the composition formula (M1-x•Fex)O•2TiO2 or the composition formula (Fe1-y•Aly)2O3•TiO2 wherein M is one of the bivalent metals Mg, Sr and Zn, the ratios of Fe, Al and M to Ti are in the respective ranges of 0.3≦Fe/Ti≦4.5, 0≦Al/Ti≦6.5 and 0≦M/Ti≦2.6, and x and y are in the respective ranges of 0≦x<1 and 0≦y<1.Type: GrantFiled: February 7, 2002Date of Patent: April 1, 2003Assignee: Ferro Enamels (Japan) LimitedInventors: Takayuki Suzuki, Koji Kataoka
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Publication number: 20030051634Abstract: 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: ApplicationFiled: September 18, 2002Publication date: March 20, 2003Applicant: Merck Patent GmbHInventor: Norio Takahashi
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Patent number: 6533857Abstract: Luster pigments based on multiply coated reflecting platelet-shaped substrates and comprising at least one layer packet comprising A) a low refractive coating which selectively absorbs visible light and B) a reflective coating which is at least partially transparent to visible light and also, if desired, C) an outer protective layer.Type: GrantFiled: February 28, 2002Date of Patent: March 18, 2003Assignee: BASF AktiengesellschaftInventors: Raimund Schmid, Arno Böhm, Oliver Seeger, Norbert Mronga, Thorsten Clemens
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Patent number: 6503970Abstract: One aspect of the invention relates to a yellow pigment composition containing at least one yellow nickel titanate and at least one yellow organic pigment containing a benzimidazolone moiety. Another aspect of the invention relates to a method of making a yellow pigment composition involving the steps of combining at least one yellow nickel titanate and at least one yellow benzimidazolone pigment to form a mixture; and mixing the mixture to form a homogenous mixture of the yellow pigment composition.Type: GrantFiled: September 29, 2000Date of Patent: January 7, 2003Assignee: Engelhard CorporationInventor: Roland J. Valin
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Patent number: 6458196Abstract: A conductive filler in the form of non-conductive particles coated with plural layers of metal plating is provided wherein the lower layer is of copper or copper alloy plating, and the uppermost layer is of gold plating. The conductive powder has a high conductivity, improved durability, especially oxidation resistance, and a relatively low specific gravity.Type: GrantFiled: March 8, 2001Date of Patent: October 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Masami Kaneyoshi
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Patent number: 6440208Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with copper, zinc, an alloy of copper, or an alloy of zinc first layer which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.Type: GrantFiled: November 6, 2000Date of Patent: August 27, 2002Assignee: Engelhard CorporationInventors: James D. Christie, Daniel S. Fuller, Curtis J. Zimmermann
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Patent number: 6420437Abstract: A neutral titanium dioxide colloid sol having a high stability in a neutral range and capable of forming a colorless transparent coating even when dried at room temperature is produced by mixing an acid titanium dioxide sol comprising 50 to 100 parts by weight of titanium dioxide colloidal particles and 5 to 50 parts by weight of a chelating agent for titanium ions with 1 to 50 parts by weight of an alkaline substance comprising at least one of alkali metal compounds and amine compounds, and optionally by adjusting the pH value of the liquid mixture to 5 to 10, or adjusting the pH value of the liquid mixture to 6 to 10, and then applying a deionization treatment to the mixture to thereby charge the titanium dioxide colloidal particles with negative electricity.Type: GrantFiled: July 26, 2000Date of Patent: July 16, 2002Assignee: Nihon Parkerizing Co., Ltd.Inventors: Kazuhiko Mori, Mitsuru Nakamura, Masanobu Tanaka
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Patent number: 6387498Abstract: A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers on opposing sides of the reflector layer. The resulting core flake section is a very thin three-layered structure that exhibits a uniaxial compressive strength much greater than a corresponding uniaxial tensile strength. This structure provides the benefits of rigidity and brittle fracture during manufacturing and application processes, which ultimately provides favorable planar and specular reflectance characteristics for the pigment in the visible wavelength range. A variety of outer coating layers can be formed around the core flake sections, such as various dielectric and absorber layers having thicknesses dependent upon the desired optical characteristics of the pigment.Type: GrantFiled: April 7, 2000Date of Patent: May 14, 2002Assignee: Flex Products, Inc.Inventors: Kent E. Coulter, Thomas Mayer, Roger W. Phillips, John S. Matteucci
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Patent number: 6383638Abstract: A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of core flake sections each formed of a central reflector layer and dielectric support layers on opposing sides of the reflector layer. The resulting core flake section is a very thin three-layered structure that exhibits a uniaxial compressive strength much greater than a corresponding uniaxial tensile strength. This structure provides the benefits of rigidity and brittle fracture during manufacturing and application processes, which ultimately provides favorable planar and specular reflectance characteristics for the pigment in the visible wavelength range. A variety of outer coating layers can be formed around the core flake sections, such as various dielectric and absorber layers having thicknesses dependent upon the desired optical characteristics of the pigment.Type: GrantFiled: October 13, 2000Date of Patent: May 7, 2002Assignee: Flex Products, Inc.Inventors: Kent E. Coulter, Thomas Mayer, Roger W. Phillips, John S. Matteucci
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Patent number: 6361593Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.Type: GrantFiled: May 9, 2001Date of Patent: March 26, 2002Assignee: Engelhard CorporationInventors: Carmine Vincent DeLuca, Jr., William P. Kurtenbach, Christine Mans
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Patent number: 6334892Abstract: Tungsten nickel-antimony-rutile mixed-phase pigments in which the nickel/tungsten molar ratio is ≧4 are used to color plastics, coating materials, printing inks and ceramic glazes.Type: GrantFiled: August 9, 2000Date of Patent: January 1, 2002Assignee: BASF AktiengesellschaftInventors: Hansulrich Reisacher, Uwe Mauthe
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Patent number: 6290766Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.Type: GrantFiled: February 24, 1999Date of Patent: September 18, 2001Assignee: Engelhard CorporationInventors: Carmine Vincent DeLuca, Jr., William P. Kurtenbach, Christine Mans
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Patent number: 6238471Abstract: Multilayer interference pigment having a blue mass tone, comprised of a platelet-shaped carrier material and a coating which is formed from (i) a first layer of a colorless, transparent metal oxide of high refractive index, (ii) a second layer of colorless, transparent metal oxide of low refractive index and (iii) a third, outer layer of cobalt aluminate, cobalt-containing glass, tungsten bronzes or cobalt oxide, it also being possible for the first and third layer to be swapped around.Type: GrantFiled: February 1, 1999Date of Patent: May 29, 2001Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Reiner Vogt, Hans-Dieter Brückner
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Patent number: 6129784Abstract: A color titanium dioxide coated mica pigment and a coated body applied the pigment which comprise a flaky mica substrate and a composite oxide that is coated onto said mica substrate, and titanium, iron, and nickel are comprised as a metal that is composed of said composite oxide, can improve the color tone of the titanium dioxide coated mica pigment without using an organic substance and a color titanium dioxide coated mica pigment and a coated body applied the pigment which coats a titanium dioxide layer onto said composite oxide can provide a pigment which has color tone flip-flop property that the color tone changes according to the observed direction.Type: GrantFiled: September 28, 1998Date of Patent: October 10, 2000Assignee: Shiseido Co., Ltd.Inventors: Yukie Ikuta, Asa Kimura
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Patent number: 6080232Abstract: The invention relates to spherical colored pigments having an average particle diameter of less than 10 .mu.m on the basis of an oxide, a mixed oxide or a silicate. The pigments are obtainable by means of spray-pyrolysis technology: a solution containing oxide-forming or silicate-forming metal compounds is converted into an aerosol and the latter is fed, preferably after predrying, to a pyrolysis reactor; the pigment is separated from the pyrolysis gas. The colored pigments according to the invention are suitable for the production of ceramic decorations and for the coloring of plastics, synthetic foils, fibers and also lacquers. By reason of the spherical shape, unusual technical application properties are achieved.Type: GrantFiled: November 14, 1997Date of Patent: June 27, 2000Assignee: Degussa AktiengesellschaftInventors: Jorg Sperlich, Ralph Brandes, Hauke Jacobsen, Stipan Katusic, Andreas Schulz
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Patent number: 6036764Abstract: The present invention relates to a yellow pigment blend containing a) a yellow nickel titanate pigment, b) a yellow bismuth vanadate, and c) a yellow isoindolinone pigment, wherein a hardened pigmented article resulting from the blend is characterized according to the CIE tristimulus values system by having a value for Y of at least about 36, a value for x between 0.48 and 0.51 and a value for y between 0.44 and 0.47. The yellow pigment blend has very good heat resistance for hot melt application and very good lightfastness for long term durability.Type: GrantFiled: June 11, 1998Date of Patent: March 14, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Kim Diane Gooding, James Martin Delaney
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Patent number: 6036763Abstract: In one embodiment, the present invention relates to a KOH neutralized metatitanic acid mixture containing from about 30% to about 99% by weight metatitanic acid, from about 1% to about 20% by weight of a titanyl compound, and optionally from about 0% to about 55% by weight titanium dioxide, wherein the KOH neutralized metatitanic acid mixture has a pH from about 4 to about 6.5. In another embodiment, the present invention relates to a pigment composition made by combining a KOH neutralized metatitanic acid mixture and at least one guest element precursor, wherein the KOH neutralized metatitanic acid mixture contains metatitanic acid, a titanyl compound, and optionally titanium dioxide, the KOH neutralized metatitanic acid mixture having a pH from about 4 to about 6.5.Type: GrantFiled: October 16, 1998Date of Patent: March 14, 2000Assignee: Engelhard CorporationInventors: Thomas V. Edwards, William L. Howell, Jr., Frank A. Mazzella
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Patent number: 6007616Abstract: Disclosed is a system of natural colours consisting of thousands of coloured powders of mineral origin and of materials in or on which pigments have been applied and, afterwards, submitted to at least one thermal treatment and/or irradiation. These natural colours cover the totality of the visible spectrum and offer a great variety of tones, tints and reflections from white to black, including all the rainbow colours. The powders of this system are obtained by mechanical, chemical, thermal and/or physical processes and are used alone or in combination. They are particularly useful to colour materials and, more especially those used in the construction and architectural fields.Type: GrantFiled: October 8, 1996Date of Patent: December 28, 1999Inventor: Paulette Tourangeau
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Patent number: 5993536Abstract: A method of decoloring a colored concrete, comprises adding to the colored concrete, a decoloring pigment comprising a titanium oxide pigment, or a titanium oxide pigment and a pigment having a complementary color relative to color of the colored concrete. Such method can decolore the color of the colored concrete residue which attaches to or remains in production facilities in order to return a color thereof to that of an ordinary plain concrete, without works or treatments for washing-out or removing the colored concrete residue which attaches to or remains in the production facilities, in which the works or treatments are required in the case where the production facilities are used for the production of an ordinary plain concrete after the colored concrete has been produced therein, and without works or treatments for purifying a waste water generated upon washing-out or removing the residue and for making the waste water harmless; and a pigment used therefor.Type: GrantFiled: February 4, 1998Date of Patent: November 30, 1999Assignee: Toda Kogyo CorporationInventors: Toshiki Matsui, Masaru Isoai, Yasuhiko Fujii, Tomoyuki Imai
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Patent number: 5972097Abstract: The invention provides a method for producing colorful inorganic pigments, which comprise complex oxides of various elements, which have good weather resistance and good heat resistance, and which are widely used in colorants for ceramics and in colorants for coatings and plastics. In the method, the composite oxides are sintered at a low temperature for a short period of time to give homogeneous and well colored pigments. Under the sintering conditions, the composite oxides are not sintered excessively. The grinding step in the method is simplified.Type: GrantFiled: October 27, 1997Date of Patent: October 26, 1999Assignee: Ferro Enamels (Japan) LimitedInventors: Toyotaro Maki, Shuzo Mihara, Shigeru Suzuki