Bismuth, Vanadium, Molybdenum, Or Tungsten Compound Containing (bi, V, Mo, Or W) Patents (Class 106/479)
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Patent number: 6602339Abstract: An aluminum pigment excellent in water resistance useful in water-based metallic paints, water-based metallic inks and the like, is provided. The pigment is excellent in water resistance and has a coating derived from peroxo-polymolibdate represented by the compositional formula: MoO3.mH2O2.nH2O or MoO3-m(O2)m.nH2O where Mo is molybdenum, O is oxygen, 0≦m≦1 and 1≦n≦2 and also includes at least one amine selected from alkylamine, allylamine, arylamine, alkanolamine or alkoxylamine.Type: GrantFiled: June 13, 2002Date of Patent: August 5, 2003Assignee: Toyo Aluminium Kabushiki KaishaInventors: Yoshiki Hashizume, Takayuki Nakao
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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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Patent number: 6582507Abstract: A bismuth oxychloride effect pigment has a zinc oxide or microfine titanium dioxide particulate at about the surface of the crystals of the bismuth oxychloride. The pigment is prepared by, for instance, growing the bismuth oxychloride crystals, and adding the particulate before the hydrolysis is complete.Type: GrantFiled: August 19, 2002Date of Patent: June 24, 2003Assignee: Engelhard CorporationInventors: Paul B. Cao, Michael Venturini
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Patent number: 6582814Abstract: Rare earth-transition metal oxides are used as pigments. The rare earth-transition metal oxide pigments are preferably of the formula (RexTm)Oy, where Re is at least one rare earth element, Tm is at least one transition metal, x ranges from 0.08 to 12, and y ranges from x+1 to 2x+2. The pigments are useful as colorants, and possess good stability.Type: GrantFiled: June 14, 2001Date of Patent: June 24, 2003Assignee: DMC2 Degussa Metals Catalysts Cerdec AGInventors: Daniel R. Swiler, Terry J. Detrie, Enos A. Axtell, III
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Patent number: 6579357Abstract: A bismuth oxychloride effect pigment exhibiting improved light stability has a discontinuous coating of hydrous iron oxide on the crystals of the bismuth oxychloride. The pigment is prepared by growing the bismuth oxychloride crystals, adding a hydrolyzable iron salt thereto and then hydrolyzing the iron salt.Type: GrantFiled: May 14, 2002Date of Patent: June 17, 2003Assignee: Engelhard CorporationInventor: Paul Cao
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Patent number: 6572695Abstract: A bismuth oxychloride effect pigment has a carbon black particulate at about the surface of the crystals of the bismuth oxychloride. The pigment is prepared by, for instance, growing the bismuth oxychloride crystals, and adding the particulate before the hydrolysis is complete.Type: GrantFiled: August 19, 2002Date of Patent: June 3, 2003Assignee: Engelhard CorporationInventor: Paul B. Cao
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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: 6551397Abstract: The present invention relates to a pigment preparation comprising BiOCl pigments, one or more luster pigments and spherical particles, and to the use thereof in printing inks, security printing inks, surface coatings, paints, plastics and in cosmetic formulations.Type: GrantFiled: April 29, 2002Date of Patent: April 22, 2003Assignee: Merck Patent GmbHInventors: Joachim Weitzel, Wolfgang Hechler
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Patent number: 6547869Abstract: Described is a process for preparing a powder coating material, in which a mixture comprising binders, pigments and also, where appropriate, fillers, additives and cross linkers is extruded and then ground. The pigment fraction of this mixture at least in part comprises surface-modified effect pigment that has been coated with a low molecular mass polyethylene or polypropylene. Also, described is a powder coating material prepared by this process and the use of effect pigments coated with low molecular mass polyethylene or polypropylene to prepare powder coating materials.Type: GrantFiled: July 19, 2001Date of Patent: April 15, 2003Assignee: Merck Patent GmbHInventor: Tobias Witt
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Publication number: 20030039836Abstract: The invention relates to multilayered interference pigments which comprise a platelet-shaped substrate of silicon dioxide which is coated alternately with layers of light-transparent materials having refractive indices of n>1.8 and layers of light-transparent materials having refractive indices of n≦1.8, where the optical thickness of the platelet-shaped substrate and the optical thickness of the individual layers of light-transparent materials having refractive indices of n≦1.8 are the same.Type: ApplicationFiled: August 2, 2002Publication date: February 27, 2003Applicant: Merck Patent GmbHInventors: Gerhard Pfaff, Helge Kniess, Peter Reynders
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Patent number: 6508876Abstract: A colored interference pigment having a platelet-shaped layer as substrate, a coating of at least one metal oxide layer and, optionally, a further layer, at least two layers comprising or consisting of colorants.Type: GrantFiled: February 9, 2000Date of Patent: January 21, 2003Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Klaus Bernhardt, Hans-Dieter Brückner, Karl Osterried, Reiner Vogt
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Patent number: 6503468Abstract: A method of doping vanadium pentoxide with silver comprising the steps of: providing vanadium pentoxide gel providing stable colloidal silver and combining the vanadium pentoxide gel and the colloidal silver at room temperature for a period sufficient for vanadium (+5) to be electrochemically reduced to vanadium (+4) and for silver to be oxidized (+1).Type: GrantFiled: January 9, 2002Date of Patent: January 7, 2003Assignee: Eastman Kodak CompanyInventors: James R. Sandifer, David S. Uerz
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Patent number: 6503310Abstract: Laser markable coatings include a marking pigment and a fixing material. The marking pigment may comprise titanium dioxide, zinc oxide, zinc sulfide or the like. The fixing material may comprise bismuth trioxide, antimony oxide and the like, and preferably has a melting temperature below 1,300° C. A preferred laser marking composition includes TiO2 and Bi2O3 in a weight ratio of about 1:1. After application to a substrate and laser irradiation, the fixing material stabilizes the resultant mark.Type: GrantFiled: June 21, 2000Date of Patent: January 7, 2003Assignee: DMC2 Degussa Metals Catalysts Cerdec AGInventor: Robert Michael Sullivan
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Patent number: 6503316Abstract: 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: September 22, 2000Date of Patent: January 7, 2003Assignee: DMC2 Degussa Metals Catalysts Cerdec AGInventors: George Emil Sakoske, Joseph E. Sarver
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Patent number: 6503304Abstract: A flowable and pumpable aqueous semifinished product of gassing stability for the production of paints and lacquers comprises water, a pre-stabilized metallic pigment and an anticorrosive pigment.Type: GrantFiled: January 16, 2001Date of Patent: January 7, 2003Assignee: ECKART-Werke Standard-Bronzepulver-Werke Carl Eckart GmbH & Co.Inventors: Andreas Korn, Robert Maul
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Patent number: 6494943Abstract: Colored pigments having one or more desired parameters and/or properties are described. These parameters and/or properties include: a) a particles size of from about 10 nm to about 300 nm; b) an accusizer number of less than 1010 particles/ml of dispersion at 15% solids which are greater than 0.5 micron; c) a filterability such that when in a liquid medium, 100 ml having 10% solids of the colored pigment filters through a 3 micron nylon absolute filter; d) a colored pigment purity of greater than about 80%, based on extractable material; and/or e) a stability such that the above-described properties do not change by more than 50% at 25 degrees C. for at least one week. Colored pigments having at least one organic group and having one or more of the above-described characteristics is also described as well as a process for preparing surface-modified colored pigments.Type: GrantFiled: October 27, 2000Date of Patent: December 17, 2002Assignee: Cabot CorporationInventors: Yuan Yu, Friedrich K. von Gottberg, Robert M. Amici, Paul S. Palumbo
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Patent number: 6485557Abstract: Manganese vanadium oxides are used as pigments. The mnanganese vanadium oxide pigments are of the formula Mn2V2O7. The, pigments are useful as colorants, and also possess improved reflectance characteristics in the infrared region, thereby reducing IR-induced heat buildup.Type: GrantFiled: July 6, 2000Date of Patent: November 26, 2002Assignee: DMCInventor: Daniel Russell Swiler
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Patent number: 6478866Abstract: Aqueous pigment preparations containing a) at least one pigment, b) at least one condensation product based on A) suphonated aromatics, B) aldehydes and/or ketones and optionally C) one or several compounds selected from the group of non sulphonated aromatics, urea and urea derivatives, and c) at least one polyether polyol with a boiling point of above 150° C., at normal pressure. The inventive preparations are highly suitable for pigmenting natural or synthetic materials.Type: GrantFiled: August 14, 2000Date of Patent: November 12, 2002Assignee: Bayer AktiengesellschaftInventors: Peter Roger Nyssen, Wolfgang Zarges, Achim Brand, Thomas Roick, Hans Peter Geiger
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Publication number: 20020157574Abstract: The present invention relates to a pigment preparation comprising BiOCl pigments, one or more luster pigments and spherical particles, and to the use thereof in printing inks, security printing inks, surface coatings, paints, plastics and in cosmetic formulations.Type: ApplicationFiled: April 29, 2002Publication date: October 31, 2002Applicant: Merck Patent GmbHInventors: Joachim Weitzel, Wolfgang Hechler
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Patent number: 6472547Abstract: This invention provides a process for producing bismuth tertiary amyloxide which is a starting material for forming a ferroelectric film such as SrBi2Ta2O9 containing bismuth oxide, or an oxide superconductive film such as Bi2Sr2CaCu2O8, by the CVD method or sol-gel method. This process comprises reacting bismuth bromide with sodium tertiary amyloxide or potassium tertiaryamyloxide in a toluene solvent containing 5 to 30 weight % tetrahydrofuran, then separating a byproduct sodium bromide or potassium bromide by filtration and recovering bismuth tertiary amyloxide by distillation under reduced pressure.Type: GrantFiled: February 20, 2002Date of Patent: October 29, 2002Assignee: Kabushikikaisha Kojundokagaku KenyushoInventors: Satoru Morisawa, Masamichi Matsumoto, Hidekimi Kadokura
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Patent number: 6464772Abstract: The present invention relates to very durable bismuth-based inorganic pigments with a light vivid yellow to orange color corresponding to the following general formula: BiV(1−n)XnO(4−3n) in which X is a halogen or a mixture of halogens and n can vary from 0 to 1. The invention also relates to the process for the manufacture of such pigments.Type: GrantFiled: November 20, 2000Date of Patent: October 15, 2002Assignee: Gebroeders Cappelle N.V.Inventors: Frank Vermoortele, Emile Joseph Buyse
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Patent number: 6458197Abstract: The present invention relates to a pigment based on bismuth vanadate with a bright vivid yellow to orange color exhibiting improved resistance, in particular an improved resistance to heat, characterized in that it is coated with several layers of inorganic compounds in several successive stages, the last layer being based on a zinc and boron compound. The present invention also relates to the process for producing this pigment and to its application.Type: GrantFiled: September 22, 2000Date of Patent: October 1, 2002Assignee: Gebroeders Cappelle, N.V.Inventors: Frank Vermoortele, Emile Joseph Buyse
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Patent number: 6444025Abstract: Zirconium-containing, red-tinged bismuth vanadate pigments of general formula I, BiVbOx.Cac(MoO4)d.ZreSifOy.Fz I wherein the variables have the following meanings: b 0.8 to 1.5; c 0 to 0.3; d 0 to 0.3; e 0.01 to 0.3; f 0 to 0.3; x (3/2+5b/2); y (2e+2 f); z 0.001 to 0.5, and a process for the preparation thereof and the use thereof in pigmenting high molecular weight organic materials such as surface-coatings, plastics and printing inks.Type: GrantFiled: March 12, 2001Date of Patent: September 3, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Leonardus Johannes Hubertus Erkens, Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains, Helena Francisca Maria Schulpen-Vleugels
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Patent number: 6428615Abstract: Pigment preparations including as essential blending components A) an inorganic pigment from the group of the bismuth vanadate pigments and rutile pigments and B) a phosphate, are produced and used for coloring polymeric materials.Type: GrantFiled: June 19, 2000Date of Patent: August 6, 2002Assignee: BASF AktiengesellschaftInventors: Hansulrich Reisacher, Oliver Seeger
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Patent number: 6423131Abstract: Bismuth vanadate pigments comprising at least one coating containing calcium fluoride, bismuth oxyfluoride or a lanthanide fluoride or oxyfluoride or a mixture thereof are useful for coloring paints, printing inks and plastics.Type: GrantFiled: September 2, 1999Date of Patent: July 23, 2002Assignee: BASF AktiengesellschaftInventors: Oliver Seeger, Hansulrich Reisacher, Norbert Mronga, Reinhard Zickgraf
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Publication number: 20020056402Abstract: Bismuth vanadate pigments comprising at least one coating containing calcium fluoride, bismuth oxyfluoride or a lanthanide fluoride or oxyfluoride or a mixture thereof are useful for coloring paints, printing inks and plastics.Type: ApplicationFiled: September 2, 1999Publication date: May 16, 2002Inventors: OLIVER SEEGER, HANSULRICH REISACHER, NORBERT MRONGA, REINHARD ZICKGRAF
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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: 6379449Abstract: Nitride or oxidenitride based red to yellow pigments, such as tantalum(V) nitride and oxidenitrides containing tantalum may be produced by passing ammonia over nitridable metal compounds, in particular oxide compounds, at 700 to 1250° C. According to the invention, nitriding proceeds in a rotary tube or fluidised bed reactor in the presence of an oxide from the series SiO2, ZrO2, GeO2, SnO2, TiO2 and HfO2 under conditions under which this oxide is substantially not nitrided.Type: GrantFiled: February 22, 2000Date of Patent: April 30, 2002Assignee: dmcInventors: Martin Jansen, Eberhard Günther, Hans-Peter Letschert
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Patent number: 6358307Abstract: Vanadium dioxide particles having formula V1−xMxO2, wherein 0≦x≧0.05 and M is a doping metal, and being characterized in that they have a particle size of less than 10 &mgr;m, a method for preparing same, and the use of said microparticles, in particular for surface coating, are disclosed.Type: GrantFiled: June 13, 2000Date of Patent: March 19, 2002Assignee: Les Peintures JefcoInventors: Pierre Legrand, Jean-Raymond Gavarri, Jean-Christophe Valmalette, Gilbert Vacquier, Daniel Lefevre
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Patent number: 6277187Abstract: A film for cutting off heat rays having a high transmittance and a low reflectivity of visible light, a low transmittance and a high reflectivity of near infrared radiation and a surface resistivity of at least about 106 ohms/square is formed from a coating liquid is a dispersion containing fine particles of borides having an average diameter not exceeding 100 nm. The liquid disperison is coated on a surface and heated. The dispersion may further contain fine particles of at least one ruthenium or iridium oxide having an average diameter not exceeding 100 nm.Type: GrantFiled: October 8, 1998Date of Patent: August 21, 2001Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Hiroko Kuno, Hiromitsu Takeda, Kenji Adachi
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Publication number: 20010009130Abstract: A flowable and pumpable aqueous semifinished product of gassing stability for the production of paints and lacquers comprises water, a pre-stabilized metallic pigment and an anticorrosive pigment.Type: ApplicationFiled: January 16, 2001Publication date: July 26, 2001Inventors: Andreas Korn, Robert Maul
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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: 6221147Abstract: Bismuth manganese oxide pigments are used as additives to various materials such as plastics, plastic or organic coating compositions, glass and ceramic coating compositions, and the like. The bismuth manganese oxide pigments preferably comprise Bi2Mn4O10 crystallized in the orthorhombic crystal structure. The pigments possess improved reflectance characteristics, particularly in the IR region, and may reduce IR-induced heat buildup.Type: GrantFiled: December 18, 1998Date of Patent: April 24, 2001Assignee: Cerdec Aktiengesellschaft Keramischre FarbenInventors: George Emil Sakoske, Joseph E. Sarver, Miroslav Novotny
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Patent number: 6171383Abstract: Bismuth manganese oxide green pigments are used as additives to various materials such as plastics, plastic or organic coating compositions, glass and ceramic coating compositions, and the like. The green bismuth manganese oxide pigments preferably comprise Bi12MnO20 crystallized in the cubic crystal structure. The pigments possess improved reflectance characteristics, particularly in the IR region, and may reduce IR-induced heat buildup.Type: GrantFiled: November 17, 1999Date of Patent: January 9, 2001Assignee: Cerdec Aktiengesellschaft Keramische FarbenInventors: George Emil Sakoske, Joseph E. Sarver
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Patent number: 6156695Abstract: A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product.Type: GrantFiled: July 15, 1997Date of Patent: December 5, 2000Assignee: Exxon Research and Engineering CompanyInventors: Stuart L. Soled, Sabato Miseo, Roman Krycak, Hilda Vroman, Teh C. Ho, Kenneth L. Riley
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Patent number: 6132505Abstract: The present invention relates to inorganic pigment pellets for coloring building materials, lacquers and plastics and to a process for the production thereof and to the use thereof inter alia for the production of pastes, suspensions and emulsion paints.Type: GrantFiled: February 3, 1998Date of Patent: October 17, 2000Assignee: Bayer AktiengesellschaftInventors: Gunter Linde, Kai Butje, Manfred Eitel
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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: 6080808Abstract: The molding composition contains, in a flowable binder, from 20 to 50% by vol., based on the total volume of the molding composition, of a powder comprising one or more metal oxides and, if desired, metal carbides and/or metal nitrides which cannot be reduced using hydrogen, where at least 65% by vol. of the powder has a maximum particle size of 0.5 .mu.m and the remainder of the powder has a maximum particle size of 1 .mu.m, and at least 90% by vol. of the powder comprises metal oxides which can be reduced using hydrogen. The metal oxides which can be reduced using hydrogen are Fe.sub.2 O.sub.3, FeO, Fe.sub.3 O.sub.4, NiO, CoO, Co.sub.3 O.sub.4, CuO, Cu.sub.2 O, Ag.sub.2 O, Bi.sub.2 O.sub.3, WO.sub.3, MoO.sub.3, SnO, SnO.sub.2, CdO, PbO, Pb.sub.3 O.sub.4, PbO.sub.2 or Cr.sub.2 O.sub.3, or mixtures thereof.Type: GrantFiled: January 5, 1998Date of Patent: June 27, 2000Assignee: BASF AktiengesellschaftInventor: Hans-Josef Sterzel
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Patent number: 6068688Abstract: A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R.sup.1 represents a bond, an arylene group, an alkylene ##STR2## wherein R.sup.4 is an alkyl or alkylene group or an aryl or arylene group; R.sup.2 and R.sup.3, which can be the same or different, represent hydrogen, an alkyl group, an aryl group, --OR.sup.5, --NHR.sup.5, --NR.sup.5 R.sup.5, or --SR.sup.5, wherein R.sup.5, which is the same or different, represents an alkyl group or an aryl group; and SFR represents a stable free radical. Also disclosed is a modified particle or aggregate having attached a group having the formula: ##STR3## wherein CoupA represents a Si-containing group, a Ti-containing group, or a Zr-containing group; R.sup.8 and R.sup.9, which can be the same or different, represent hydrogen, an alkyl group, an aryl group, --OR.sup.10, --NHR.sup.10, --NR.sup.10 R.sup.10, or --SR.sup.10, wherein R.sup.Type: GrantFiled: November 12, 1997Date of Patent: May 30, 2000Assignee: Cabot CorporationInventors: Robert S. Whitehouse, Russell L. Warley, Thimma R. Rawalpally, Hairuo Tu
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Patent number: 6063182Abstract: A stir-in pigment composition for coloring high-molecular-weight material, particularly coatings and ink systems, comprises 85 to 99.5 parts by weight of a pigment and 0.5 to 15 parts by weight of an additive comprising a vinylpyrrolidone polymer or copolymer. The stir-in pigment composition is in the form of microgranules and is obtainable by spray drying a high solids content aqueous pigment dispersion containing the pigment and the additive. The new pigment composition powders are easily handled, easily wetted and disperse rapidly to form homogeneous aqueous pigment dispersions which are practically free of larger pigment aggregates and can readily be incorporated into aqueous ink and paint systems as stir-in pigments without a dispersion step in a bead mill.Type: GrantFiled: December 16, 1998Date of Patent: May 16, 2000Assignee: Ciba Speciality Chemicals CorporationInventor: Fridolin Babler
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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: 6022404Abstract: Surface-modified, pyrogenically produced mixed oxides which contain two or more components of the series SiO.sub.2, Al.sub.2 O.sub.3, TiO.sub.2, ZrO.sub.2, Fe.sub.2 O.sub.3, Nb.sub.2 O.sub.5, V.sub.2 O.sub.5, WO.sub.3, SnO.sub.2, GeO.sub.2 and have been surface-modified with one to several compounds of the following groups:(a) organosilanes of the type (RO).sub.3 Si(C.sub.n H.sub.2n+1),(b) R'.sub.x (RO).sub.y Si(C.sub.n H.sub.2n+1),(c) X.sub.3 Si(C.sub.n H.sub.2n+1),(d) X.sub.2 (R')Si(C.sub.n H.sub.2n+1),(e) X(R').sub.2 Si(C.sub.n H.sub.2n+1),(f) (RO).sub.3 Si(CH.sub.2).sub.m --R',(g) (R").sub.x (RO).sub.y Si(CH.sub.2).sub.m --R',(h) X.sub.3 Si(CH.sub.2).sub.m --R',(i) (R)X.sub.2 Si(CH.sub.2).sub.m --R',(j) (R).sub.2 X Si(CH.sub.2).sub.m --R',(k) Silazanes of the type ##STR1## (l) Cyclic polysiloxanes, (m) Polysiloxanes or silicone oils.Type: GrantFiled: January 11, 1996Date of Patent: February 8, 2000Assignee: Degussa AktiengesellschaftInventors: Manfred Ettlinger, Werner Hartmann, Dieter Kerner, Jurgen Meyer
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Patent number: 5997627Abstract: The disclosure describes pigment compositions containing a small particle size porous filler and a pigment, and their use for preparing effect coating compositions which produce thin film finishes exhibiting strong lightness and color flop with a pronounced three dimensional effect. The thin film finishes are particularly interesting as automotive finishes.Type: GrantFiled: November 12, 1997Date of Patent: December 7, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Fridolin Babler
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Patent number: 5993523Abstract: Metal particles useful for coating compositions, particularly aqueous coating compositions, are produced by treating the metal particles with a molybdate pigment. The molybdate pigment reacts with the surface of the metal particles. The molybdate pigment may be a salt such as a molybdate, phosphomolybdate or silicomolybdate salt, and the salt may include a multivalent cation such as calcium, strontium, barium, magnesium, zinc and aluminum. The metal particles show improved resistance to attack by water.Type: GrantFiled: June 5, 1998Date of Patent: November 30, 1999Assignee: Silberline Manufacturing Co., Inc.Inventors: Craig B. Keemer, William G. Jenkins, H. Taylor Lamborn, Robert E. Souerwine
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Patent number: 5976238Abstract: Pigment powder mixtures, consisting of0.999-0.5 part of C.I. Pigment Yellow 184, and0.001-0.5 part of an organic pigment selected from the group consisting of C.I. Pigment Orange 13, C.I. Pigment Orange 34, C.I. Pigment Orange 36, C.I. Pigment Orange 73, C.I. Pigment Red 170, C.I. Pigment Red 254, C.I. Pigment Red 255 and C.I. Pigment Red 264,or of0.99-0.5 part of C.I. Pigment Yellow 184, and0.01-0.5 part of an organic pigment selected from the group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 110 and C.I. Pigment Yellow 139.These pigment powder mixtures are distinguished, in particular in paints, by very high chroma.Type: GrantFiled: June 16, 1997Date of Patent: November 2, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Leonardus Johannes Hubertus Erkens, Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains
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Patent number: 5961710Abstract: The invention relates to granules of inorganic pigments, a process for their production using several auxiliary substances by compacting and their use in many technical fields.Type: GrantFiled: February 12, 1998Date of Patent: October 5, 1999Assignee: Bayer AktiengesellschaftInventors: Gunter Linde, Manfred Eitel, Olaf Schmidt-Park, Kai Butje
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Patent number: 5958125Abstract: Goniochromatic luster pigments based on multiply coated, high refractive, nonmetallic, platelet-shaped substrates which are at least partially transparent to visible light, comprising at least one layer packet ofA) a colorless coating having a refractive index n.ltoreq.1.8 andB) a reflecting, selectively or nonselectively absorbing coating which is at least partially transparent to visible light,and also, if desired, additionallyC) an outer protective layer,and their use for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.Type: GrantFiled: July 5, 1996Date of Patent: September 28, 1999Inventors: Raimund Schmid, Norbert Mronga
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Patent number: 5958126Abstract: Bismuth vanadate pigments of the formula (Bi.sub.4 V.sub.2 O.sub.11).sub.1-x.(BiVO.sub.4).sub.x, where 0.ltoreq.x<0.9, further comprising from 0 to 0.5% by weight of phosphorus in the form of bismuth phosphate, are characterized by a CIELAB hue angle of from 64 to 91.degree., a chroma of from 72 to 95 and a lightness.gtoreq.62 (measuring angle 45.degree., standard illuminant D65).Type: GrantFiled: October 27, 1997Date of Patent: September 28, 1999Assignee: BASF AktiengesellschaftInventors: Jorg Adel, Boubacar Camara, Norbert Mronga