Iron Compound Containing (fe) Patents (Class 106/456)
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Publication number: 20110067602Abstract: A simple and easily useable system for reverting an uncured colored concrete material back to a gray color, by merely determining the original pigment and loading initially used to color the concrete material. The system utilizes a collection of pigment mixtures that can be selected and combined as needed to revert virtually any colored concrete back to a gray color, thus eliminating or reducing the expulsion of non-gray or colored concrete and/or dirty rinse water. Additionally, the volume of rinse water needed to clean out gray concrete is significantly less than that needed to clean out colored concrete.Type: ApplicationFiled: April 21, 2010Publication date: March 24, 2011Inventor: Terrance P. Fenelon
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Patent number: 7910085Abstract: The process for production of iron oxyhydroxide particles according to the invention is characterized by comprising a step (A) in which a suspension containing iron(II) is prepared, and a step (B) in which fine bubbles with diameters of 0.05-500 ?m are generated in the suspension to form a reaction mixture, and the iron(II) in the reaction mixture is oxidized by the bubbles to produce iron oxyhydroxide particles.Type: GrantFiled: December 23, 2008Date of Patent: March 22, 2011Assignee: TDK CorporationInventor: Mika Kawase
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Publication number: 20110048276Abstract: Iron effect pigments having a thickness distribution, determined via thickness counting by scanning electron microscopy (SEM), as a cumulative undersize distribution with: a) an h50 value from 10 to 55 nm; and b) an h90 value from 20 to 80 nm, and also a method for producing the pigments, and the use of the iron effect pigments. The disclosure further relates to a printing ink comprising the iron effect pigments of the invention.Type: ApplicationFiled: May 26, 2009Publication date: March 3, 2011Inventors: Thomas Schlegl, Stefan Trummer
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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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Publication number: 20110018252Abstract: The present invention relates to a security pigment having an intrinsic hidden and/or forensic security feature, consisting of a transparent inorganic matrix and at least one particulate material embedded in the matrix, to the use of a security pigment of this type for the pigmentation of paints, coatings and the like, and to a method for the detection of a security pigment of this type.Type: ApplicationFiled: November 12, 2008Publication date: January 27, 2011Inventors: Ralf Petry, Michael Weiden, Sylke Klein, Klaus-Christian Ullmann
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Publication number: 20100326324Abstract: It is aimed at inexpensively providing a heavy aggregate comprising particles having particle diameters and densities suitable as a fine aggregate of a heavy concrete, heavy mortar, or the like, and there are provided: (i) a heavy aggregate comprising particles including, as a main constituent component, at least one of FeO, Fe2O3, and metal iron, characterized in that spherical particles are included in an amount of 20% or more in the whole of particles, and particles passing through a sieve having a nominal size of 0.15 mm are included in an amount of 10% to 20% in mass percentage in the whole of particles; and (ii) the above-described heavy aggregate characterized in that the heavy aggregate is obtained by mutually mixing at least two or more kinds selected from: mill scales brought about in a rolling process of steelmaking; coarse particle components sievedly caught at a particle diameter of 50 ?m from steelmaking converter dusts; and pig iron particles separated from blast furnace granulated slags.Type: ApplicationFiled: June 29, 2007Publication date: December 30, 2010Applicant: Taiheiyo Cement CorporationInventors: Yasuhide Higo, Minoru Yoshimoto, Takeshi Hamada, Eichi Manabe
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Patent number: 7850775Abstract: A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive or architectural coatings.Type: GrantFiled: June 20, 2007Date of Patent: December 14, 2010Assignee: Sun Chemical CorporationInventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Publication number: 20100291014Abstract: Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.Type: ApplicationFiled: May 13, 2010Publication date: November 18, 2010Applicant: MERCK Patent GesselschaftInventors: Mark Tellefsen, Qinyun Peng
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Patent number: 7811378Abstract: The invention relates to a dispersible pigment concentrate, in particular for coloring of cement based building materials like concrete, and for coatings, paints and the like, that contains at least one pigment as well as, if necessary, bonding, dispersion and wetting agents, with a content of a disintegration agent, which, when contacting water (in sufficient amount), causes an essentially complete disintegration of the primary structure of the concentrate with subsequent release the pigment particle within one minute without any mechanical operation.Type: GrantFiled: April 30, 2004Date of Patent: October 12, 2010Assignee: Brockhues GmbH & Co.Inventors: Nikolaus Wolfgang Nungeβ, Stefan Vogler
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Patent number: 7807219Abstract: A process of repairing a plasma etched low-k dielectric material having surface-bound silanol groups includes exposing at least one surface of the dielectric material to (a) a catalyst so as to form hydrogen bonds between the catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds, or (b) a solution comprising a supercritical solvent, a catalyst, and a silane capping agent so as to form hydrogen bonds between a catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds. Horizontal networks can be formed between adjacent surface-bound silane compounds.Type: GrantFiled: June 27, 2006Date of Patent: October 5, 2010Assignee: Lam Research CorporationInventor: James DeYoung
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Patent number: 7799125Abstract: The present invention relates to improved yellow iron oxide pigments and to their use.Type: GrantFiled: August 20, 2008Date of Patent: September 21, 2010Assignee: LANXESS Deutschland GmbHInventors: Carsten Rosenhahn, Robert Madersdorfer, Ingo Schnellrath, Sergio dal alba Guazzelli
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Patent number: 7789958Abstract: 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: GrantFiled: January 4, 2007Date of Patent: September 7, 2010Assignee: University of DaytonInventors: Jeffrey A. Sturgill, Andrew Wells Phelps, Joseph T. Swartzbaugh
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Publication number: 20100154680Abstract: The present invention relates to pigment granules which contain inorganic filter aids and a process for the production thereof and their use for colouring lime- and/or cement-bound building materials, asphalt, paints, finishes, paper or plastics.Type: ApplicationFiled: August 20, 2009Publication date: June 24, 2010Applicant: LANXESS DEUTSCHLAND GMBHInventors: Holger Friedrich, Herbert Kunstmann, Krzysztof Chlopek, Jüergen Kischkewitz
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Publication number: 20100083872Abstract: The bright pigment of the present invention includes flaky particles and a metal oxide layer coating at least a part of the surface of each flaky particle. The bright pigment or the flaky particles of the present invention have a particle size distribution in which the particle size at 99% of the cumulative volume from the smaller particle size is 48 ?m or less, and the maximum particle size is 62 ?m or less. The flaky particles are made of a material having a refractive index in the range of 1.4 to 1.8. The flaky particles have a thickness distribution in which the frequency of the particles having a thickness in the range of 0.8 ?m to 1.9 ?m is 90% or more by volume, or the frequency of the particles having a thickness in the range of 0.01 ?m to 0.35 ?m is 90% or more by volume.Type: ApplicationFiled: April 28, 2008Publication date: April 8, 2010Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Takeaki Kitamura, Takashi Wakamiya, Tomohiro Yagyu
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Publication number: 20100064941Abstract: A pearlescent pigment includes a ceramic flake coated with a metal oxide. The metal oxide is, preferably, an oxide of titanium, iron, tin, chromium1, zirconium or a combination thereof, and the refractive index of the metal oxide coating is preferably at least 0.5 higher than that of the ceramic flake. The pearlescent pigment may be included in a coating applied to a metallic or plastic surface to give the surface a lustrous or pearlescent optical effect.Type: ApplicationFiled: October 30, 2007Publication date: March 18, 2010Inventor: Charles Watkinson
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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: 20090301356Abstract: The invention relates to a method of controlling the solubility of granular material by treating a precipitate comprising iron(II)sulphate monohydrate originating from titanium dioxide production, in which method the reaction temperature is allowed to increase at the most to a temperature of 120° C., to a plant for treating a precipitate comprising iron(II)sulphate monohydrate, to a product and its uses. A typical method according to the invention comprises the steps of mixing water to the reaction mixture in the said mixing apparatus, and keeping the amount of neutralizing agent sufficient to give a pH value from 1.5 to 4, preferably from 1.5 to 3, to the end product in order to obtain a granular material having a high soluble iron(II) content or keeping the amount of neutralizing agent sufficient to give a pH value ?9 to the end product in order to obtain a granular material having a low solubility.Type: ApplicationFiled: June 25, 2007Publication date: December 10, 2009Inventors: Juhatuomas Vuorisalo, Joni Pärnänen
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Publication number: 20090263496Abstract: Process for producing metal particle sols having a metal particle content of ?1 g/l, comprising the steps of a) reacting a metal salt solution with a solution containing hydroxide ions b) reacting the solution obtained from step a) with a reducing agent, wherein at least one of the solutions in step a) comprises a dispersing assistant, metal particles produced by the process and the use thereof.Type: ApplicationFiled: April 12, 2007Publication date: October 22, 2009Applicant: BAYER TECHNOLOGY SERVICES GMBHInventors: Johan Kijlstra, Peter H. Weuta, Dirk Storch, Daniel Duff, Werner Hoheisel
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Publication number: 20090260542Abstract: An aggregate and/or filler extracted from slag, a method for the production thereof, and the use thereof.Type: ApplicationFiled: August 10, 2007Publication date: October 22, 2009Inventor: Djamschid Amirzadeh-Asl
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Publication number: 20090208436Abstract: An orange pearlescent pigment comprising a substrate and a first layer containing FeOOH, and a second layer containing Fe2O3 located between the substrate and the first layer. The color of the pigment is such that a homogeneous coating of the pigment, measured over a white background, has a CIELAB hue angle, hab, from about 40 to about 60 degrees, and the chroma value is greater than 50. The pigment may be used in a cosmetic, coating, or ink composition.Type: ApplicationFiled: February 18, 2008Publication date: August 20, 2009Inventors: Aaron Hollman, Philippe Schottland, Jim Black
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Publication number: 20090199737Abstract: The present invention relates to improved yellow iron oxide pigments and to their use.Type: ApplicationFiled: August 20, 2008Publication date: August 13, 2009Applicant: LANXESS Deutschland GmbHInventors: Carsten Rosenhahn, Robert Madersdorfer, Ingo Schnellrath, Sergio dal alba Guazzelli
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Publication number: 20090185992Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a black background has a CIELAB hue angle, hab, from about 40 to about 320 degrees, wherein L* is from about 35 to about 80, and the chroma value is less than 5. A substrate is coated with iron oxide by oxidizing an iron salt to form a pigment. The pigment may be made by a process of coating iron oxide on a substrate by oxidizing an iron salt. During the coating of the iron oxide, the pH of the mixture is increased. The coating formed has a Fe(III)/Fe(II) ratio of greater than 2. The pigments may be used in a variety of applications including coating, ink, plastic, and cosmetic compositions.Type: ApplicationFiled: January 18, 2008Publication date: July 23, 2009Inventors: Christelle Conan, Aaron M. Hollman, Philippe Schottland, Stephane Nicolas, Marguerite Debacker, Aurelie Antonowicz, Kenneth A. Fields, II
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Patent number: 7550297Abstract: The present invention present invention relates to improved IRIS Fe oxide paint compositions, to the dried (or cured) residue of such paints, and to devices upon which such paint compositions have been applied (IRIS devices) used to assess reducing conditions in soils, especially wetland soils. The improved IRIS Fe oxide paints contain from about 30 to about 70 mole percent goethite, more preferably, from about 40 to about 60 mole percent goethite, and still more preferably, about 50 mole percent goethite.Type: GrantFiled: February 26, 2007Date of Patent: June 23, 2009Assignee: University of Maryland, College ParkInventor: Martin C. Rabenhorst
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Publication number: 20090133605Abstract: The present invention relates to novel monodisperse particles, which comprise at least one broad spectrum absorber contrast agent and/or at least one precursor of a broad spectrum absorber contrast agent, which is encapsulated in the monodisperse particle, novel colourant compositions, to uses thereof in colouring a substrate and to substrates that are coloured (at least in part) using the colourant compositions.Type: ApplicationFiled: November 13, 2006Publication date: May 28, 2009Inventors: Michael Francis Butler, Ramin Djalali
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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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Publication number: 20090064904Abstract: The present invention relates to a black pigment/auxiliary combination having an improved relative colour strength of greater than or equal to 110%, the preparation thereof and the use thereof.Type: ApplicationFiled: January 22, 2007Publication date: March 12, 2009Applicant: LANXESS DEUTSCHLAND GMBHInventors: Holger Friedrich, Jurgen Kischkewitz, Gerald Buchner
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Publication number: 20080289538Abstract: The present invention relates to pasty or gellike pigment preparations for colouring lime-bound and/or cement-bound building materials, asphalt, paints, varnishes, paper or plastics and also to a method of preparing them.Type: ApplicationFiled: May 8, 2008Publication date: November 27, 2008Inventors: Holger Friedrich, Jurgen Kischkewitz
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Publication number: 20080279796Abstract: The present invention relates to effect pigments comprising transition-metal oxides or transition-metal hydroxyoxides or transition-metal hydroxides based on flake-form substrates which are uncoated or coated with one or more metal oxides, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in particular in cosmetic formulations.Type: ApplicationFiled: March 5, 2008Publication date: November 13, 2008Inventors: Carsten HANDROSCH, Frank Pflucker
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Patent number: 7442362Abstract: Highly pure iron oxides are prepared by reaction of metallic iron, in the form of microspheroidal particles or of scraps or cuttings, with an agitated aqueous solution of a mono- or polycarboxylic acid with a pKa of 0.5 to 6 relative to the first carboxyl and capable of decomposing, by heating in air at 200 to 350 ° C., to carbon dioxide and water, using 0.03 to 1.5 moles of acid per g-atoms of iron, a water/iron weight ration of 1 to 20, and by oxidation of the ferrous carboxilate to ferric salt, with an agent selected from oxygen, mixtures containing oxygen, hydrogen peroxide, organic peroxides and hydroperoxides.Type: GrantFiled: April 30, 2004Date of Patent: October 28, 2008Assignee: Sud Chemie MT S.r.l.Inventors: Esterino Conca, Carlo Rubini, Guido Petrini
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Publication number: 20080257213Abstract: The present invention relates to pigment granules and to a process for the preparation thereof and their use.Type: ApplicationFiled: April 23, 2007Publication date: October 23, 2008Inventors: Holger Friedrrich, Kai Butje, Udo Holtmann
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Patent number: 7425234Abstract: The invention relates to iron oxide pigments comprising an average solid body diameter of 0.1 to 500 ?m, and to the production and use thereof.Type: GrantFiled: March 4, 2004Date of Patent: September 16, 2008Assignee: LANXESS Deutschland GmbHInventors: Leslaw Mleczko, Ulrich Meisen, Georg Lamp, Ralph Weber
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Publication number: 20080196619Abstract: An anticorrosion ferrite-based pigment, derived from a hydrometallurgical purification process of EAF dust. EAF dust is generated in an electric arc furnace for carbon steel production by processing scrap metal, direct reduced iron and/or pre-reduced hematite, and using CaO-rich slag; from a condensation reaction of metals vapours of Fe, or Zn and of Mn, Mg, Si and/or Al, and suspended CaO particles and oxygen. The pigment contains a non-toxic amount of lead, and includes condensed metal oxides, comprising ferrites MOFe2?3, M being Zn, Fe, Mn and Mg, and combinations thereof. The condensed oxides have ferrite structures preserved from the EAF dust, and form aggregates thereof. The pigment includes CaO entrapped by the ferrite structures and being partially available to react with humid air and/or water to protect the substrate against corrosion. The pigments are coated or uncoated. They are used for antifouling or paint formulations.Type: ApplicationFiled: June 19, 2006Publication date: August 21, 2008Inventors: Maurice Morency, Guoji Shan, Denise Fontaine
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Patent number: 7413600Abstract: A composition for the manufacture of an opaque silvery coating on a glass surface is provided. The composition comprises a mixture of at least two metal powders. The metal powder mixture contains carbonyl iron and aluminum, and a carrier liquid for forming a suspension of the metal powder mixture. A method for manufacturing an opaque silvery coating for a lamp having a glass envelope is also provided. In the method, a suspension comprising a mixture of carbonyl iron and aluminum powders in a carrier liquid is applied onto the envelope of the lamp. The suspension is dried, and thereafter the composition remaining from the suspension is burned at a temperature above 500° C. A lamp with a glass envelope and a single layer opaque coating covering at least a part of the glass envelope is also disclosed. The opaque coating comprises 50 to 80 weight % carbonyl iron and 20 to 50 weight % elementary aluminum.Type: GrantFiled: February 15, 2007Date of Patent: August 19, 2008Assignee: General Electric CompanyInventors: István Mudra, Péter Szemere
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Patent number: 7410536Abstract: The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use.Type: GrantFiled: May 1, 2007Date of Patent: August 12, 2008Assignee: LANXESS Deutschland GmbHInventors: Holger Friedrich, Herbert Kunstmann
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Patent number: 7387672Abstract: The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use.Type: GrantFiled: May 1, 2007Date of Patent: June 17, 2008Assignee: LANXESS Deutschland GmbHInventor: Holger Friedrich
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Patent number: 7387671Abstract: Iron Oxide pigment containing greater than 99% iron oxide, having a chloride content of less than 0.1% and a mean solid diameter of 10 to 500 ?m and methods of making the same are disclosed.Type: GrantFiled: March 4, 2004Date of Patent: June 17, 2008Assignee: LANXESS Deutschland GmbHInventors: Ulrich Meisen, Leslaw Mleczko
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Patent number: 7387669Abstract: Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 ?m, an average platelet thickness from 300 to 600 nm and an aspect ratio from 15 to 70.Type: GrantFiled: October 23, 2004Date of Patent: June 17, 2008Assignee: BASF AktiengesellschaftInventors: Norbert Mronga, Raimund Schmid, Oliver Seeger
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Publication number: 20080124575Abstract: A coating, ink, or article containing a pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III).Type: ApplicationFiled: October 31, 2007Publication date: May 29, 2008Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Publication number: 20080115694Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a white background, is selected from the group consisting of: a CIELAB L* value of about 30 or less and a chroma value of about 3 or less; a CIELAB hue angle, hab, from about 50 to about 80 degrees, wherein L* is not more than about 85, and the chroma value is greater than 22; a CIELAB hue angle, hab, from about 80 to about 275 degrees, wherein L* is not more than about 80, and the chroma value is greater than about 10; and a CIELAB hue angle, hab, from not less than about 275 to not more than about 50 degrees, wherein L* is not more than about 85, and the chroma value is greater than about 9. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.Type: ApplicationFiled: October 31, 2007Publication date: May 22, 2008Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Publication number: 20080110371Abstract: A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive or architectural coatings.Type: ApplicationFiled: June 20, 2007Publication date: May 15, 2008Applicant: Sun Chemical CorporationInventors: Aaron M. Hollman, Stephane Nicolas, Philippe Scottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Publication number: 20080110372Abstract: A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Patent number: 7347893Abstract: The current invention relates to a method of manufacturing iron oxide pigments from mill scale. The mill scale is mixed with alien iron oxide and the resultant mixture is heated to a temperature of 200° C. to 900° C. in an oxidizing atmosphere to produce iron oxide pigment which can be black, brown or red. The alien iron oxide used and the iron oxide pigment produced are predominantly Fe2O3 or Fe3O4 or a mixture of both. The iron oxide pigment produced as above or from any other sources can be turn into black by mixing it with mill scale and the resultant mixture is heated to a temperature of 200° C. to 900° C. in a non-oxidizing or reducing atmosphere to produced iron oxide black pigment. Additives can be added to produce better quality iron oxide black pigment. The additives can be chromium oxide or manganese oxide or magnesium oxide or any carbonaceous material or mixtures thereof. The iron oxide black pigment produced as above is cooled in a non-oxidizing or reducing atmosphere to ensure no re-oxidation.Type: GrantFiled: June 2, 2006Date of Patent: March 25, 2008Assignee: IOP Specialists SDN. BHD.Inventor: Kin Onn Low
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Patent number: 7318861Abstract: An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which the pigment exhibits visual homogeneity.Type: GrantFiled: December 17, 2003Date of Patent: January 15, 2008Assignee: BASF Catalysts LLCInventors: Frank Bagala, Sr., Curtis J. Zimmermann
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Publication number: 20070277703Abstract: The current invention relates to a method of manufacturing iron oxide pigments from mill scale. The mill scale is mixed with alien iron oxide and the resultant mixture is heated to a temperature of 200° C. to 900° C. in an oxidizing atmosphere to produce iron oxide pigment which can be black, brown or red. The alien iron oxide used and the iron oxide pigment produced are predominantly Fe2O3 or Fe3O4 or a mixture of both. The iron oxide pigment produced as above or from any other sources can be turn into black by mixing it with mill scale and the resultant mixture is heated to a temperature of 200° C. to 900° C. in a non-oxidizing or reducing atmosphere to produced iron oxide black pigment. Additives can be added to produce better quality iron oxide black pigment. The additives can be chromium oxide or manganese oxide or magnesium oxide or any carbonaceous material or mixtures thereof. The iron oxide black pigment produced as above is cooled in a non-oxidizing or reducing atmosphere to ensure no re-oxidation.Type: ApplicationFiled: June 2, 2006Publication date: December 6, 2007Applicant: IOP Specialists Sdn. Bhd.Inventor: Kin Onn Low
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Patent number: 7303622Abstract: The present invention relates to lustrous black interference pigments based on a substrate mixture, characterised in that it has (A) a coating of Fe3O4 (B) a colorless coating consisting of one or more layers each having a refractive index of n?1.8, (C) optionally a coating with an absorbent, high-refractive-index material which only covers part of the surface, and optionally (D) an outer protective layer, and to the use thereof in paints, coatings, powder coatings, printing inks, plastics, ceramic materials, glasses, for the laser marking of papers and plastics, in cosmetic formulations and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: October 1, 2004Date of Patent: December 4, 2007Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Manuela Loch, Nicole Schupp, Ralf Anselmann, Lilia Heider
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Publication number: 20070266899Abstract: The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use.Type: ApplicationFiled: May 1, 2007Publication date: November 22, 2007Inventors: Holger Friedrich, Herbert Kunstmann
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Publication number: 20070266900Abstract: The present invention relates to oxidation-stable iron oxide pigments which have a coating of at least one organic substance, to their preparation and to their use.Type: ApplicationFiled: May 1, 2007Publication date: November 22, 2007Inventor: Holger Friedrich
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Publication number: 20070261604Abstract: The present invention relates to improved yellow iron oxide pigments and to their use.Type: ApplicationFiled: May 4, 2007Publication date: November 15, 2007Inventor: Carsten Rosenhahn
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Patent number: 7294191Abstract: The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use.Type: GrantFiled: May 13, 2005Date of Patent: November 13, 2007Assignee: LANXESS Deutschland GmbHInventors: Carsten Rosenhahn, Wilfried Burow, Volker Schneider
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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