Nickel, Cobalt, Copper, Or Cadmium Compound Containing (ni, Co, Cu, Cd) Patents (Class 106/440)
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Patent number: 5968248Abstract: A heat-resistant inorganic pigment of the present invention comprises a composite metal oxide containing Ti and two divalent metals selected from the group consisting of Mg, Fe, Ni and Co, the content of said two divalent metals in said composite metal oxide being 0.95 to 1.05, in an atomic ratio, based on Ti, and the composition ratio of said two divalent metals being 95/5 to 5/95 in an atomic ratio. The pigment of the present invention is useful as a pigment for a heat-resistant coating material and is a novel heat-resistant inorganic pigment which does not pollute the environment.Type: GrantFiled: February 13, 1997Date of Patent: October 19, 1999Assignees: General of Agency of Industrial Science, Toda Kogyo CorporationInventors: Yasuo Shibasaki, Kiichi Oda, Saburo Sano, Shigehisa Yamamoto, Nanao Horiishi
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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: 5931998Abstract: Disclosed is a system of natural colors consisting of thousands of colored 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 colors 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 colors. 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 color materials and, more especially those used in the construction and architectural fields.Type: GrantFiled: October 8, 1996Date of Patent: August 3, 1999Inventor: Paulette Tourangeau
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Patent number: 5908499Abstract: Disclosed is a system of natural colors consisting of thousands of colored 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 colors 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 colors. The powders of this system are obtained by a combination of two mechanical, chemical, thermal and/or physical processes and are used alone or in combination. They are particularly useful to color materials and, more especially those used in the construction and architectural fields.Type: GrantFiled: October 8, 1996Date of Patent: June 1, 1999Inventor: Paulette Tourangeau
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Patent number: 5853476Abstract: A method for coloring cementitious systems using compacted inorganic granules, wherein said compacted inorganic granules comprise an inorganic pigment and a dispersing agent. Particularly, a method for coloring cementitious systems using compacted inorganic granules; wherein said compacted inorganic granules are produced by a process consisting of: (a) mixing an inorganic pigment and a dispersing agent, (b) compacting the mixture, (c) milling the compacted mixture, and (d) classifying the compacted mixture into at least one oversize material stream, at least one undersize material stream and at least one product stream of compacted inorganic granules; and wherein the coloring effect of the compacted inorganic granules in the cementitious system equals or exceeds the powder standard.Type: GrantFiled: August 11, 1997Date of Patent: December 29, 1998Assignee: Elementis Pigments, Inc.Inventor: James T. Will
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Patent number: 5849073Abstract: A pigment for sensing gas leakage can be produced by adding at least one of salts of platinum group metals to a slurry of particulate substrate, neutralizing the resultant mixture to deposit at least one of oxides, hydroxides and hydrated oxides of platinum group metals on the surfaces of said particulate substrate, and if necessary, further adding to said slurry at least one of compounds of aluminum, silicon, titanium, zinc, zirconium, tin, antimony and cerium, neutralizing the resultant mixture to deposit at least one of compounds such as oxides, hydroxides and hydrated oxides of aluminum, silicon, titanium, zinc, zirconium, tin, antimony and cerium, on the particles.Type: GrantFiled: February 18, 1998Date of Patent: December 15, 1998Assignees: Ishihara Sangyo Kaisha, Ltd., Act Research, Inc.Inventors: Masashi Sakamoto, Haruo Okuda, Hideo Futamata
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Patent number: 5766336Abstract: Colored pigments are provided from the green-yellow to red spectrum based on oxide-nitrides with two or three different cations Q, R and S in the crystal lattice, wherein the nitrogen to oxygen atomic ratio is determinative for the color. These pigments crystallise in the pyrochlore, spinel or elpasolite structure. Pigments in the perovskite are as provided with increased color brilliance. The color of the pigments can be adjusted in a wide range of the color spectrum during their preparation within a substance class with the cations Q, R and S and while retaining the crystal structure, by increasing or lowering the atomic ratio N to O in the oxide-nitride and bringing about the required charge balancing by replacing an equivalent quantity of the cation Q with the valency q by a cation R with the valency q+1.Type: GrantFiled: August 21, 1995Date of Patent: June 16, 1998Assignee: Cerdec Aktiengesellschaft Keramische FarbenInventors: Martin Jansen, Hans-Peter Letschert
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Patent number: 5766335Abstract: The invention relates to colored luster pigments consisting of a transparent or metallic reflecting core, of a coating consisting of at least one silicon oxide of the composition SiO.sub.0.25 to SiO.sub.0.95 and of further optional coatings, to coating processes by coating metallic silicon in the presence of oxygen, if required with changing its partial pressure, as well as to the use of these luster pigments for pigmenting plastic materials, paints and printing inks, and to pigmented compositions comprising these luster pigments.Type: GrantFiled: April 23, 1997Date of Patent: June 16, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Patrice Bujard, Natacha Bonnard
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Patent number: 5759256Abstract: A rutile mixed metal oxide pigment can be prepared by calcining a rutile ore with a transition metal oxide. The rutile mixed oxide pigment can be dispersed in an emulsion to produce a paint or coating or the pigment can be combined with a network former and network modifier to produce a ceramic glaze.Type: GrantFiled: May 24, 1996Date of Patent: June 2, 1998Assignee: Kerr-McGee Chemical Corp.Inventor: Rodney D. Stramel
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Patent number: 5749959Abstract: A stable dark or moderately dark opaque exterior coating constituted of pentations and binder materials having low solar absorbing properties capable of visual and infrared camouflage. The pigmentations and binder materials may be selected for the proper optical qualities by previous testing before mixture and application as a coating.Type: GrantFiled: February 10, 1969Date of Patent: May 12, 1998Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert F. Supcoe, Melvin Greenberg
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Patent number: 5707436Abstract: Prior art production of purple pigments based on colloidal gold on stovable/sinterable/fireable support material involves the reduction of a gold compound in the presence of a chemical reducing agent.Purple pigments may be produced more simply according to the invention by intimately mixing and/or grinding the support material and the gold compound in dry form or by bringing an aqueous solution or suspension of a gold compound and a support material into contact and then thermally treating the mixture at a temperature above the decomposition temperature of the gold compound and below the sintering temperature of the support material, wherein the gold compound is converted into colloidal gold.Type: GrantFiled: March 29, 1995Date of Patent: January 13, 1998Assignee: Cerdec Aktiengesellschaft Keramische FarbenInventors: Klaus-Dieter Fritsche, Bernd Dorbath, Norbert Giesecke, Kerstin Ruhnau
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Patent number: 5693134Abstract: An interference pigment comprising a platelet-shaped substrate coated with titanium dioxide and additionally oxidic compounds of copper and manganese, whereby the pigment powder color is dark gray.Type: GrantFiled: December 29, 1994Date of Patent: December 2, 1997Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventor: Alfred Stephens
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Patent number: 5667892Abstract: Multicolored flakes with two faces, having a thickness between approximately 60 .mu.m and approximately 200 .mu.m, consist in a film of uniform color of polymer, copolymer or terpolymer, or a mixture thereof, having on at least part of one face only a decorative coating different from the uniform color.Type: GrantFiled: April 18, 1995Date of Patent: September 16, 1997Assignee: Sarl Quadra IndustriesInventor: Robert Marillier
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Patent number: 5662738Abstract: Luster pigments useful for coloring paints, printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations are based on multiply coated plateletlike metallic substrates comprisingA) a first, colorless or selectively absorbing layer of metal oxide,B) a second, nonselectively absorbing layer of carbon, metal and/or metal oxide, andC) if desired a third, colorless or selectively absorbing layer of metal oxide.Type: GrantFiled: July 22, 1994Date of Patent: September 2, 1997Assignee: BASF AktiengesellschaftInventors: Raimund Schmid, Norbert Mronga
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Patent number: 5540770Abstract: Luster pigments based on coated plateletlike substrates comprising nitrogen-containing metal layers and if desired additionally one or more layers consisting essentially of colorless or selectively absorbing metal oxide, are prepared and used for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.Type: GrantFiled: June 16, 1995Date of Patent: July 30, 1996Assignee: BASF AktiengesellschaftInventors: Raimund Schmid, Norbert Mronga, Harald Ochmann, J org Adel
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Patent number: 5364467Abstract: Luster pigments useful for coloring paints, printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations are based on multiply coated plateletlike metallic substrates comprisingA) a first, colorless or selectively absorbing layer of metal oxide,B) a second, nonselectively absorbing layer of carbon, metal and/or metal oxide, andC) if desired a third, colorless or selectively absorbing layer of metal oxide.Type: GrantFiled: April 30, 1993Date of Patent: November 15, 1994Assignee: BASF AktiengesellschaftInventors: Raimund Schmid, Norbert Mronga
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Patent number: 5194089Abstract: Coated spinel color pigments with a core of a colored spinel, in particular CoAl.sub.2 O.sub.4, and a coating glassy layer of a silicate are described. The coating layer is essentially silicon dioxide and one or more oxides of the group of alkali metals, alkaline earth metals, and/or earth metals show a high resistance to bleeding in the presence of glass fluxes, as compared to uncoated spinels. The pigments are produced by sintering, for 0.5 to 5 hours, a powder mixture of the spinel, silicon dioxide, and at least one member chosen from the group of alkali metal halides, alkaline earth metal halides, earth metal halides and mixtures thereof as mineralizer at 900.degree. to 1,300.degree. C. The coated spinel color pigments are suitable for the production of ceramic decorations with improved contour sharpness.Type: GrantFiled: May 9, 1991Date of Patent: March 16, 1993Assignee: Degussa AGInventors: Dietrich Speer, Akos Kiss, Peter Kleinschmit, Jenny Horst
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Patent number: 5192365Abstract: Desirable buff rutile pigment compositions are described which comprise about 40 to about 55% by weight of titanium, from about 0.4 to about 5 parts by weight of cobalt, from about 7 to about 14% by weight of tungsten, from 0.01 to about 5 parts by weight of lithium and from about 0.1 to about 20 parts by weight of cerium.Type: GrantFiled: June 6, 1991Date of Patent: March 9, 1993Assignee: Engelhard CorporationInventor: Zoltan M. Modly
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Patent number: 5147686Abstract: Antimicrobial powders are obtained by suppporting at least one antimicrobial metal of copper, zinc and alloys thereof on the surface of hydrous titanium oxide or titanium oxide particles by electroless plating, vapor deposition, compression mixing, mixing and reducing, and thermal decomposition of a compound. These powders are used to provide antimicrobial resin compositions, antimicrobial rubber compositions, antimicrobial glass compositions and antimicrobial coating compositions.Type: GrantFiled: January 9, 1991Date of Patent: September 15, 1992Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Kenichi Ichimura, Hajime Murakami, Nobutoshi Yamada, Sadanori Mizukoshi
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Patent number: 5137575Abstract: TiO.sub.2 -based chromatic pigments are provided by coating core particles of TiO.sub.2 having a mean particle size from 0.01 to 0.1 .mu.m with a layer of metal oxide of Ni, Co, Ce, Cu, Cr, Mn, V, W or a mixutre thereof.Type: GrantFiled: May 30, 1990Date of Patent: August 11, 1992Assignee: Tayca CorporationInventors: Takashi Yasuki, Shunji Idei
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Patent number: 5108508Abstract: Novel rutile mixed phase pigment microgranulates are disclosed which comprise hemispherical particles indented to form toroid-shaped beads. The microgranulates are free-flowing, non-dust forming, and are stable in handling.Type: GrantFiled: September 10, 1990Date of Patent: April 28, 1992Assignee: Bayer AktiengesellschaftInventors: Jakob Rademachers, Hans-Ulrich Hofs, Dieter Rade
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Patent number: 5091012Abstract: Disclosed herein are cobalt titanate particles having an average particle diameter in the range of 0.5-2.0 .mu.m, said particles being mono-dispersed and having uniform particle size distribution.Type: GrantFiled: June 14, 1991Date of Patent: February 25, 1992Assignee: Toda Kogyo Corp.Inventor: Tatsuya Nakamura
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Patent number: 5017231Abstract: A heat-resistant pigment can be produced by forming a dense and uniform coating on the surface of the pigment by contacting a hydrophilic pigment with a metal oxide in at least partly water-miscible solvent.Type: GrantFiled: January 3, 1990Date of Patent: May 21, 1991Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventors: Akira Nishihara, Makoto Tsunashima
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Patent number: 4979991Abstract: A production process of pigment according to this invention comprises the steps of: a first step of forming an inorganic compound coating layer on the entire surfaces of scaly substrates made of ceramic; a second step of forming metallic glossy dots on the surfaces of the inorganic compound coating layer in a scattered manner by an electroless plating, and the metallic glossy dots occupying from 0.05 to 95% of the surfaces of the inorganic compound coating layer with respect to the total surface area of the inorganic compound coating layer; and a third step of irradiating ultraviolet ray on particles formed by the second step. The impurities and the like, which adversely affect the color hue of the pigment, have been discolored or faded away by the ultraviolet ray irradiation in the third step. Accordingly, the pigment having good weather resistance can be produced readily and stably by the present invention.Type: GrantFiled: September 18, 1989Date of Patent: December 25, 1990Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junichi Handa, Hiroshi Itou, Taketoshi Minohara, Yoshio Takagi
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Patent number: 4976787Abstract: A pigment comprises a substrate, a metallic layer formed on at least one surface of the substrate and imparting metallic luster, and a transparent inorganic compound layer formed on surfaces of the substrate and the metallic layer. Thereby, the pigment produces color by light interference of a ray reflected on a surface of the transparent inorganic compound layer and a ray passed through the transparent inorganic compound layer and reflected on a surface of the metallic layer. Thus, the pigment is excellent in coloring power and hiding power, and particularly useful for an automotive finishing paint.Type: GrantFiled: March 14, 1990Date of Patent: December 11, 1990Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Ito, Junichi Handa, Yoshio Takagi, Taketoshi Minohara