Pigment Containing Coating Patents (Class 427/218)
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Patent number: 11787948Abstract: Optical effect pigment comprising a plurality of layers and a magnetic element, the layers can be arranged in two stacks of asymmetric layers or in a single stack of layers and comprise at least an absorber layer and at least a dielectric layer and can further comprise a reflector layer. The magnetic element presents a magnetisation which is out-of-plane, i.e. predominantly perpendicular to the plane of the pigment, which allows a deposition on the printing substrate whereby the face of the pigment lying up or down on the substrate can be predetermined. Such effect pigment has applications in many fields and specifically in security printing, where due to controlled deposition for instance a double-stack pigment will produce a different optical effect on each of its faces.Type: GrantFiled: June 21, 2018Date of Patent: October 17, 2023Inventor: Andrés Ruiz Quevedo
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Patent number: 10730799Abstract: A method of making a plurality of composite granules can include: forming green body granules comprising an aluminosilicate; heating the green body granules to form sintered granules; cooling the sintered granules according to a cooling regime, wherein the cooling regime comprises a temperature hold between 700° C. and 900° C. for at least one hour. In a particular embodiment, the aluminosilicate for making the composite granules can have a particle size less than 150 ?m. The composite granules are particularly suitable as roofing granules and can have a desired combination of high solar reflectance SR and low lightness L*, a low bulk density, good weather resistance and strength.Type: GrantFiled: December 27, 2017Date of Patent: August 4, 2020Assignee: CERTAINTEED CORPORATIONInventors: Tracy H. Panzarella, Ryan Koseski, Todd P. Dinoia, Bojana Lante
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Patent number: 10309111Abstract: A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius provides roofing granules with improved luster.Type: GrantFiled: January 27, 2014Date of Patent: June 4, 2019Assignee: CertainTeed CorporationInventors: Ming Liang Shiao, Van Nhan Nguyen, Emmanuel Garre
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Patent number: 9890287Abstract: The present invention relates to pigments based on bismuth compounds and to the use thereof, preferably as laser-absorbent additive, and to a process for the preparation thereof.Type: GrantFiled: December 17, 2014Date of Patent: February 13, 2018Assignee: Merck Patent GmbHInventors: Helge Bettina Kniess, Franciscus Gerardus Henricus Van Duijnhoven, Franciscus Wilhelmus Maria Gelissen
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Publication number: 20150064351Abstract: An apparatus including an air blower; a rotary airlock; a receptacle having an inner chamber supplied with a plurality of colorant particles; a water supply; and a mixing chamber. The air blower blows air into a bottom section of the rotary airlock, and the rotary airlock receives colorant particles from an output of the receptacle. A rotor shaft of the rotary airlock rotates to cause colorant particles to be transported to the bottom section of the rotary airlock. Air blown into the bottom section of the rotary airlock mixes with colorant particles transported into the bottom section of the rotary airlock to form an air and colorant particles mixture, which is blown out of a first output of the rotary airlock and combined with water to form a water, air, and colorant particles mixture, which is mixed with material in a mixing chamber. The material may be natural mulch.Type: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventor: Mark N. Halper
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Patent number: 8940189Abstract: The present invention relates to intensely colored and/or optically variable pigments which have a flake-form transparent or semitransparent electrically conductive core and at least one coloring dielectric layer surrounding the core, to a process for the preparation of such pigments, and to the use thereof.Type: GrantFiled: December 11, 2008Date of Patent: January 27, 2015Assignee: Merck Patent GmbHInventors: Burkhard Krietsch, Matthias Kuntz, Reinhold Rueger
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Patent number: 8920926Abstract: Algae-resistant roofing granules include a mineral core and an exterior coating including clay, colloidal silica, phosphate, a metal oxide, and a photocatalytic particulate having an average size under 100 nm. By varying the proportions of the components to the binder for the exterior coating, improved control of the pot life of the coating composition can be achieved, and the binder can be formulated to accommodate different manufacturing conditions.Type: GrantFiled: March 28, 2008Date of Patent: December 30, 2014Assignee: CertainTeed CorporationInventors: Keith C. Hong, Ming Liang Shiao, Gregory F. Jacobs
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Patent number: 8916236Abstract: The invention relates to a method of forming (rutile) titanium dioxide-coated platelet-like pigments in which hydrous titanium dioxide is deposited on platelet-like particles followed by calcining, comprising (a) effecting the titanium deposit in the presence of an ?-hydroxy carboxylic acid, especially glycolic acid, or oxalic acid, and an amino acid, especially glycine, alanine, valine, aspartic acid (?-, ?- and ?-form); or an amino acid; to the pigments obtained by the method and the use thereof. The method can work in the absence of exogenous metal and Ti(III). The rutile TiO2-coated substrate of the present invention has at least the same advantages and characteristics of a tin containing product which includes luster, color, color homogeneity and few small particle formation during manufacture.Type: GrantFiled: February 18, 2008Date of Patent: December 23, 2014Assignee: Ciba CorporationInventor: Patrice Bujard
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Patent number: 8900660Abstract: Disclosed is a method for producing a silver (Ag) coating pigment. The method for producing a silver coating pigment according to the present invention comprises: a step of forming a tin compound pretreatment layer on the matrix surface; and a step of forming a silver coating layer on the lower portion of the tin compound pretreatment layer through a reflux and electroless plating process using a diluted solution of silver nitrate, ammonia water, a citric acid solution, and a diluted solution of potassium hydroxide.Type: GrantFiled: April 12, 2012Date of Patent: December 2, 2014Assignee: CQV Co., Ltd.Inventors: Dong-Min Heo, Jae-Il Jeong, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang, Man-Su Lee, Gun-Eik Jang
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Patent number: 8845803Abstract: The invention relates to a method for the surface treatment of inorganic pigment particles with agglomerates of fine primary particles or single crystals of inorganic compounds, particularly of oxides or sulphates. The method is characterized in that the inorganic compounds are first precipitated from an aqueous solution under suitable pH conditions in a separate vessel in the form of fluffily structured agglomerates and/or single crystals. The precipitation product is subsequently added to an aqueous suspension of inorganic pigment particles. The method is particularly suitable for the surface treatment of titanium dioxide particles, in order to achieve high hiding power or high opacity when used in emulsion paints or laminates.Type: GrantFiled: June 28, 2013Date of Patent: September 30, 2014Assignee: Kronos International, Inc.Inventors: Volker Juergens, Alexander Breyder, Frank Mersch, Siegfried Bluemel, Volker Schmitt
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Patent number: 8828519Abstract: A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5.Type: GrantFiled: October 5, 2011Date of Patent: September 9, 2014Assignee: Cristal USA Inc.Inventors: Fu-Chu Wen, Deborah E. Busch, Richard L. Fricker, Robert Provins, Brian David Kiessling, David Edwin Bell
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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: 20140163151Abstract: AlP composite materials comprise an AlP aggregate core, and a shell disposed partially or entirely over the core and formed from a pigment material, e.g., TiO2, having an index of refraction greater than the core, providing an overall index or refraction greater than the core and suited for use as a pigment replacement or extender. The AlP core comprises amorphous AlP, crystalline AlP, or a combination thereof, and can have an average particle size of less than about 30 microns. The TiO2 can have an average grain size less than about 10 microns. The shell can have a layer thickness that is at least about 0.0001 microns. The shell is bonded to the core by a reaction between functional groups of the shell and core. The AlP composite material can be engineered to provide properties in addition to brightness for use as a pigment such as anticorrosion and/or antimicrobial protection.Type: ApplicationFiled: December 7, 2012Publication date: June 12, 2014Applicant: Bunge Amorphic Solutions LLCInventors: Ronald James Lewarchik, Raymond E. Foscante
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Patent number: 8647429Abstract: The present invention relates to effect pigments based on uncoated or coated flake-form substrates having an outer coating comprising a) TiO2 and b) Al2O3, MgO and/or CaO and c) SiO2 and d) ZnO and/or e) at least one mixed oxide of the elements mentioned under a) to d), and to the use thereof, inter alia in paints, coatings, printing inks, plastics and cosmetic formulations.Type: GrantFiled: February 2, 2011Date of Patent: February 11, 2014Assignee: Merck Patent GmbHInventors: Sabine Melson, Volker Wilhelm, Ulrich Schoenefeld
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Patent number: 8637116Abstract: A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius provides roofing granules with improved luster.Type: GrantFiled: April 27, 2011Date of Patent: January 28, 2014Assignee: CertainTeed CorporationInventors: Ming Liang Shiao, Van Nhan Nguyen, Emmanuel Garre
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Patent number: 8585818Abstract: The present disclosure relates to a method of making coated perlite flakes comprises: (i) providing perlite flakes; (ii) applying a layer of tin oxide on the perlite flakes to obtain tin oxide coated perlite flakes; (iii) applying a layer titanium dioxide on the tin oxide coated perlite flakes obtained in step (ii) to obtain titanium dioxide and tin oxide coated perlite flakes; and (iv) applying a layer of iron oxide to the titanium dioxide and tin oxide coated perlite flakes to obtain the coated perlite flakes. The present disclosure also relates to coated perlite flakes comprising: perlite flakes with layer of tin oxide, then a layer of titanium dioxide, and then a layer of iron oxide.Type: GrantFiled: March 14, 2013Date of Patent: November 19, 2013Assignee: BASF SEInventor: Steven Alan Jones
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Publication number: 20130251771Abstract: The present invention is related to brilliant black pigments comprising a flaky aluminum oxide substrate having a coating comprising a layered structure composed of a hematite and a magnetite layer, to a process for the production of said pigments, as well as to their use.Type: ApplicationFiled: November 14, 2011Publication date: September 26, 2013Applicant: MERCK PATENT GMBHInventors: Kaiman Shimizu, Fumiko Sasaki, Yukitaka Watanabe
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Patent number: 8501272Abstract: Optically anisotropic spheres that can be used as pixel elements in rotating element displays are fabricated by partially (e.g., hemispherically) coating a plurality of spheres by transfer coating methods. Typically, a monolayer of spaced apart monochromal (e.g., white) spheres is formed on a support surface by, for example, making use of a removable template matrix. Next, a uniform layer of viscous coating material (e.g., black coating) is applied to the monolayer of spheres to transfer at least some of the coating material onto the surface of spheres in a monolayer. The obtained partially coated spheres are optionally cured by a UV or thermal exposure and are then removed from the support substrate. In some embodiments, coating material also provides electrical anisotropy to the spheres. Transfer coating methods result in improved precision of hemispherical coating and allow use of environmentally robust pixel elements.Type: GrantFiled: December 21, 2007Date of Patent: August 6, 2013Assignee: Cospheric LLCInventors: Yelena Lipovetskaya, Brian Gobrogge
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Patent number: 8465798Abstract: Disclosed is a method for manufacturing a fluorescent material. The method includes: putting the fluorescent material into a first solution, and agitating the fluorescent material and the first solution; putting a nano fluorescent material having a nano size into the first solution, and agitating the nano fluorescent material having a nano size and the first solution; and separating supernatant from the first solution including the fluorescent material, and drying the fluorescent material. Disclosed is a light emitting device. The light emitting device includes: a body; a light emitting element mounted on a cavity formed in the body; a resin formed in the cavity; and a fluorescent material added to the resin, wherein a nano fluorescent material having a nano size is adsorbed in the fluorescent material.Type: GrantFiled: November 19, 2010Date of Patent: June 18, 2013Assignee: LG Innotek Co., Ltd.Inventors: Yun Soo Song, Sang Hyuk Lee
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Publication number: 20130089706Abstract: A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5.Type: ApplicationFiled: October 5, 2011Publication date: April 11, 2013Inventors: Fu-Chu Wen, Deborah E. Busch, Richard L. Fricker, Robert Provins, Brian David Kiessling, David Edwin Bell
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Patent number: 8394498Abstract: Roofing granules include a core having an average ultraviolet transmission of greater than sixty percent and an average near infrared reflectance of greater than sixty percent and a UV coating layer on the exterior surface. The coating provides UV opacity, while the core provides near infrared reflectance.Type: GrantFiled: December 16, 2008Date of Patent: March 12, 2013Assignee: CertainTeed CorporationInventors: Ming Liang Shiao, Jennifer A. Sharp, Gregory F. Jacobs
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Patent number: 8337611Abstract: Disclosed are yellowing-stable, silver-white effect pigments having high whiteness based on synthetic mica flakes and to the use thereof in paints, lacquers, printing inks, plastics, button pastes, ceramic materials, glasses, for coloring seed, as dopant in laser markings of plastics and papers, as additive for laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors and in cosmetic formulations, and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: February 17, 2010Date of Patent: December 25, 2012Assignee: Merck Patent GmbHInventors: Gerhard Pfaff, Johann Dietz, Sabine Schoen, Doreen Warthe
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Patent number: 8303832Abstract: A printed mask derived from a composition comprised of at least one compound including at least one alkaline-hydrolyzable group, at least one compound including at least one ethylene oxide group and at least one ultraviolet radiation blocking agent, wherein the printed mask is removable using an alkaline solution in about 30 seconds or less.Type: GrantFiled: August 17, 2009Date of Patent: November 6, 2012Assignee: Palo Alto Research Center IncorporatedInventors: Francisco E. Torres, Norine E. Chang, Eric J. Shrader, C. Wayne Jaeger
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Patent number: 8268069Abstract: The present invention relates to pearlescent pigments based on glass flakes which are distinguished by the fact that they have the following layer structure: A) optionally a layer of SiO2, B) a high-refractive-index coating have a refractive-index n>1.8 which essentially consists of TiO2, C) a low-refractive-index layer comprising SiO2 and/or Al2O3 and optionally D) an outer protective layer, and to the use thereof in paints, coatings, automobile paints, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, in toners for electrophotographic printing processes, in seed, in greenhouse sheeting and tarpaulins, as absorbers in the laser marking of paper and plastics, as absorbers for the laser welding of plastics, in cosmetic formulations, for the preparation of pigment pastes with water, organic and/or aqueous solvents, for the preparation of pigment compositions and dry preparations.Type: GrantFiled: August 10, 2005Date of Patent: September 18, 2012Assignee: Merck Patent GmbHInventors: Sabine Melson, Marc Entenmann, Marita Jekel, Marcus Mathias
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Patent number: 8221834Abstract: A titania composite and a preparing method thereof are provided. The titania composite comprises an inner core and a coating film layer, wherein the inner core is a barium sulfate crystal and/or a strontitum sulfate crystal with subsphaeroidal shape, having a particle size of less than 1 ?m and whiteness of more than 98%, and the coating film layer is nano rutile titania. The preparing method thereof comprises the following steps: (a) preparing barium sulfate or strontium sulfate; (b) coating treatment; (c) subjecting the titania composite to a high-temperature heat treatment; and (d) subjecting the titania composite to a post treatment. The subsphaeroidal titania composite is obtained by chemically synthesizing a subsphaeroidal submicron barium sulfide or strontium sulfide, and then hydrolyzing and coating thereon to form a coating film layer of titania to make titania grow evenly.Type: GrantFiled: December 30, 2009Date of Patent: July 17, 2012Assignee: Chongqing Kechang Technology Co., Ltd.Inventors: Dong Hua, Zhengtao Liu
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Patent number: 8197893Abstract: The present invention relates to roofing materials for roofs, sidewalls and other exterior surfaces exposed to the weather such as, but not limited to, asphaltic and non-asphaltic roofing materials, wherein color coated metal flakes cover up to 100% of the weathering surface of the roofing materials. The metal flakes are coated with a colored coating material by fluidizing the flakes in an air stream, spraying pressurized air and colored coating material, and curing the coated metal flakes. The present invention also relates to methods of making roofing materials.Type: GrantFiled: September 19, 2008Date of Patent: June 12, 2012Assignee: Building Materials Investment CorporationInventors: Olan T. Leitch, John G. Freshwater, Matti Kiik
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Patent number: 8114211Abstract: The present invention relates to pearlescent pigments based on flake-form substrates which have at least one FeOOH layer and at least one TiO2 layer or at least one TiO2/SiO2/TiO2 layer package, and to the use thereof, inter alia, in paints, coatings, printing inks, powder coatings, plastics and in particular in care and decorative cosmetics.Type: GrantFiled: December 12, 2007Date of Patent: February 14, 2012Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Carsten Handrosch, Marcus Mathias, Nicole Schupp, Meike Willius
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Patent number: 8101234Abstract: A nanocrystal capable of light emission includes a nanoparticle having photoluminescence having quantum yields of greater than 30%.Type: GrantFiled: March 16, 2010Date of Patent: January 24, 2012Assignee: Massachusetts Institute of TechnologyInventors: Moungi Bawendi, Klavs F. Jensen, Bashir O. Dabbousi, Javier Rodriguez-Viejo, Frederic Victor Mikulec
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Patent number: 8070874Abstract: The invention provides a surface-modified titanium dioxide particle inhibited in photocatalytic activity and reduced in amount of volatile water. The surface-modified titanium dioxide particle has on the surface a crystalline composite compound of at least one of alkaline earth metals selected from magnesium, calcium, barium and strontium complexed with titanium dioxide in an amount of 0.1-20% by weight based on the weight of the surface-modified titanium dioxide particle in terms of oxide of the alkaline earth metal. The surface-modified titanium dioxide particle is produced by heating a compound of an alkaline earth metal and a titanium dioxide particle at a temperature of 60° C. or higher so that the alkaline earth metal is complexed with titanium dioxide to form a crystalline composite compound on the surface of the titanium dioxide particle in an amount of 0.1-20% by weight based on the weight of the surface-modified titanium dioxide particle in terms of oxide of the alkaline earth metal.Type: GrantFiled: June 25, 2010Date of Patent: December 6, 2011Assignee: Sakai Chemical Industry, Co., Ltd.Inventors: Kazunobu Abe, Kazumi Sugimoto, Atsuki Terabe, Masaru Mikami
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Patent number: 8067059Abstract: Novel hydrophobic composites, particularly hydrophobic particulates and free-flowing hydrophobic aggregates and methods utilizing same are disclosed.Type: GrantFiled: July 14, 2004Date of Patent: November 29, 2011Assignee: Superseal Ltd.Inventor: Zeev Birger
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Patent number: 8034429Abstract: An aggregate turf filler for use with the turf of athletic fields and landscaped areas which comprise crushed silica sand particles (SiO2) which are substantially round in shape and are sized to be between 12 and 40 mesh. An acrylic based sealer covering the outer surface of each of the silica sand particles. Finally, providing that the silica sand particles have a smooth outer surface, possess an angle of repose of less than 30°, repel water, resist compacting, present no damaging sharp edges when incorporated with the turf and are environmentally safe.Type: GrantFiled: September 25, 2009Date of Patent: October 11, 2011Assignee: USGreentech, L.L.C.Inventors: Carl L. Huff, Randolph S. Reddick
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Patent number: 8008861Abstract: A plasma display panel is disclosed. The plasma display panel includes a front substrate, a rear substrate facing the front substrate, a barrier rib that is positioned between the front substrate and the rear substrate and partitions a discharge cell, and a phosphor layer formed inside the discharge cell. The phosphor layer includes a first phosphor layer emitting first color light, a second phosphor layer emitting second color light, and a third phosphor layer emitting third color light. The first phosphor layer includes a first pigment. A thickness of the second phosphor layer is larger than a thickness of the first phosphor layer.Type: GrantFiled: July 1, 2008Date of Patent: August 30, 2011Assignee: LG Electronics Inc.Inventors: Heekwon Kim, Byungho Rhee, Jinyoung Kim, Gibum Lee
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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: 7914893Abstract: Disclosed are particles containing substrates and an anion-binding layer, containing one or more anion-forming organic active compounds or active compound/colorant mixtures; processes for preparing said particles and to methods of use thereof in cosmetics, pharmaceuticals, formulations, paints, coatings, plastics, films, in security printing, in security features in documents or identity papers, for coloring seed, for coloring foods or in medicament coatings and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: May 24, 2007Date of Patent: March 29, 2011Assignee: Merck Patent GmbHInventors: Carsten Handrosch, Thomas Rudolph, Herwig Buchholz, Soheila Anzali
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Patent number: 7858148Abstract: Artificial turf for use with an artificial turf system, which may also include a base layer and a support layer. The artificial turf comprising a backing supporting pile tufts of between ¼? to 4? in length, in position on its upper surface. The backing may comprise a porous synthetic foam or backing sheet. A filler of particles shaped to have no sharp edges and of substantially equal size are interspersed over the backing and about the tufts up to at least half thick length. The artificial turf substantially retains its resiliency, porosity and equal density throughout.Type: GrantFiled: March 5, 2007Date of Patent: December 28, 2010Assignee: USGreentech, L.L.C.Inventor: Randolph S. Reddick
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Patent number: 7837785Abstract: The present invention relates to pigment granules and to a process for the preparation thereof and their use.Type: GrantFiled: April 23, 2007Date of Patent: November 23, 2010Assignee: LANXESS Deutschland GmbHInventors: Holger Friedrich, Kai Bütje, Udo Holtmann
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Patent number: 7828890Abstract: The invention relates to effect pigments having an aluminum core or aluminum alloy core and an aluminum oxide-containing or aluminum oxide/hydroxide-containing layer enveloping said aluminum core or aluminum alloy core, obtained by chemical wet-process oxidation of lamellar aluminum pigments or aluminum alloy pigments, the content of metallic aluminum in the aluminum core or aluminum alloy core being not more than 90% by weight, based on the total weight of the pigment, wherein the oxidized aluminum pigments or aluminum alloy pigments exhibit at least one highly refractive metal chalcogenide layer having a refractive index of >1.95, and a mixed layer is formed between the highly refractive metal chalcogenide layer and the enveloping aluminum oxide-containing or aluminum oxide/hydroxide-containing layer. The invention further relates to a process for the production of such effect pigments and to the use thereof.Type: GrantFiled: November 19, 2004Date of Patent: November 9, 2010Assignee: Eckart GmbH & Co. KGInventors: Frank Henglein, Hermann Birner, Michael Grüner
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Patent number: 7806976Abstract: There is provided an aluminum pigment including an aluminum particle having a film formed on a surface thereof, wherein the film contains a metallic amine salt and the metallic amine salt is represented by the compositional formula RmHnN+?O—M(?O)2—OH (wherein M represents a metal element, R represents a hydrocarbon chain optionally having a substituent, m represents an integer of 1 or more, and n represents an integer satisfying n=4?m).Type: GrantFiled: April 28, 2008Date of Patent: October 5, 2010Assignee: Toyo Aluminium Kabushiki KaishaInventor: Takayuki Nakao
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Patent number: 7799126Abstract: Disclosed are a pigment comprising a flake-form substrate, where natural and synthetic clay minerals are excluded as substrate, and an anion-binding layer, in particular comprising a layered double hydroxide, where the anion-binding layer comprises anion-forming organic, inorganic and/or organometallic colorants; and a process for the preparation of said pigment and to the use thereof in cosmetics, paints, coatings, plastics, films, in security printing, in security features in documents and identity cards, for coloring seed, for coloring foods or in medicament coatings, and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: April 20, 2007Date of Patent: September 21, 2010Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Carsten Handrosch, Carsten Lorenz
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Publication number: 20100192802Abstract: The present invention relates to a method for preparing (pearlescent) pigments, comprising the steps of: (1) coating of a sheet silicate with a desired metal oxide, wherein coated flakes are obtained, (2) delamination of the coated flakes obtained in step (1), wherein exfoliated coated flakes and exfoliated non-coated flakes are obtained, (3) separation of the exfoliated coated flakes from the exfoliated non-coated flakes, (4) coating the exfoliated coated flakes obtained in step (3) with metals, metal oxides, metal sulfides, metal nitrides or mixtures thereof, wherein a (pearlescent) pigment is obtained; to (pearlescent) pigments, obtainable by the process and to the use of the (pearlescent) pigments in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings, printing inks, plastics, cosmetics, glazes for ceramics and glass.Type: ApplicationFiled: April 23, 2008Publication date: August 5, 2010Applicant: CIBA CORPORATIONInventors: Patrice Bujard, Redina Kote, Philippe Bugnon
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Patent number: 7708823Abstract: The present invention relates to semitransparent interference pigments having a neutral mass tone comprising a substrate and a coating comprising metallic tin and additionally at least one metal oxide, to a process for the preparation of these pigments, and to the use thereof.Type: GrantFiled: June 9, 2006Date of Patent: May 4, 2010Assignee: Merck Patent GmbHInventors: Helge Bettina Kniess, Klaus Bernhardt, Wolf-Dietrich Weber, Gerhard Pfaff
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Patent number: 7691196Abstract: Disclosed are yellowing-stable, silver-white effect pigments having high whiteness based on synthetic mica flakes and to the use thereof in paints, lacquers, printing inks, plastics, button pastes, ceramic materials, glasses, for coloring seed, as dopant in laser markings of plastics and papers, as additive for laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors and in cosmetic formulations, and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: June 7, 2007Date of Patent: April 6, 2010Assignee: Merck Patent GmbHInventors: Gerhard Pfaff, Johann Dietz, Sabine Schoen, Doreen Warthe
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Patent number: 7611574Abstract: The invention relates to an interference pigment with a high covering power, comprising at least one FeTiO3-containing layer, which is applied to a lamellar inorganic substrate and whose thickness and absorbing power can be precisely set. The invention also relates to a method for producing this interference pigment and to the use thereof.Type: GrantFiled: May 5, 2004Date of Patent: November 3, 2009Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Helge Kniess, Gerhard Pfaff, Klaus Bernhardt
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Patent number: 7611750Abstract: A nanocomposite material and a method of manufacturing the same are disclosed. The nanocomposite material includes a plurality of nanoparticles coated with a metal oxide, and a matrix of the metal oxide immobilizing the nanoparticles that are dispersed therein. The nanocomposite material is manufactured such that macro- or macro-scale cracks are prevented or effectively prevented, light stability is enhanced over a light-emitting period, and light brightness is improved.Type: GrantFiled: December 4, 2006Date of Patent: November 3, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-kee Yi, Byung-ki Kim, Jae-ho Lee, Eun-joo Jang, Seong-jae Choi
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Patent number: 7608297Abstract: This invention falls into the field of ceramic manufactures, in particular tiles and trim pieces made of porcelain stoneware. Titanium dioxide is applied to the glaze and to the layer covering the tiles so that a photocatalytic oxidization action can be produced acting against the polluting and bacterial agents present in the atmosphere.Type: GrantFiled: April 21, 2004Date of Patent: October 27, 2009Assignee: Ceramiche Di Siena S.p.a.Inventors: Ivana Commendator Gambarelli, Giuseppe Pozzi
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Publication number: 20090241471Abstract: There is described a process for producing multicolored solid powder wafers for use in solid beauty products, wherein the solid powder wafers so produced have a mosaic effect.Type: ApplicationFiled: March 30, 2009Publication date: October 1, 2009Applicant: INTERCOS S.p.A.Inventors: Marco Lazzarini, Francesca Iacovacci
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Publication number: 20090220557Abstract: The present invention relates to intensely coloured and light-stable effect pigments based on transparent, undoped SiO2 flakes, which are distinguished by the fact that they are covered with an iron-oxide layer having a thickness of 30-150 nm, and all SiO2 flakes have an identical thickness, and the thickness of the SiO2 flakes is 250-400 nm, and to the use thereof in pigment mixtures, in cosmetic formulations and for colouring foods and pharmaceutical products.Type: ApplicationFiled: November 7, 2006Publication date: September 3, 2009Inventors: Gerhard Pfaff, Johann Dietz, Cornelia Foerderer, Xenia Petsitis, Doreen Warthe, Veronika Hochstein
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Patent number: 7582285Abstract: The invention relates to a cosmetic preparation containing a metallic effect pigment which consists of a metal substrate having a layer enclosing the substrate. Said layer is produced in a sol/gel method, has a barrier effect against sweat and saliva and prevents a direct contact between skin and metallic substrate, the metallic pigment being hydrophilic. The inventive preparation can be in the form of a cream, a lotion, an eye shadow, a nail varnish, a lipstick, a mascara, a gel, a make-up formulation or a self-tanning cream or lotion.Type: GrantFiled: January 25, 2005Date of Patent: September 1, 2009Assignee: Eckart GmbH & Co. KGInventors: Peter Krüger, Hans-Jörg Kremitzi
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Patent number: 7563316Abstract: The invention relates to a method for producing a coloured sand composition containing a large number of silica sand grains with outer coatings of colour pigments, wherein the method comprises the following steps: mixing caustic soda and water in a predetermined ratio, preferably of 1:2, to form a dilute caustic soda; mixing boric acid in a predetermined concentration with the dilute caustic soda to form a boric acid/caustic soda solution; mixing a binder with the boric acid/caustic soda solution in a predetermined ratio to form a coating mixture; coating the silica sand grains coated with the colour pigments with the coating mixture by adding the coating mixture to the silica sand grains, and indirectly heating the silica sand grains coated with the coating mixture in a system which is spatially sealed from the heating source by means of separate chambers for the heating process and the heating source. A coloured sand composition is also described.Type: GrantFiled: July 28, 2004Date of Patent: July 21, 2009Assignee: Bene-Fit GmbHInventors: Reinhard Kräuter, Michael Flierl
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Patent number: 7517403Abstract: The invention relates to novel colorants based on bismuth oxyhalide and bismuth oxycarboxylates, bismuth oxyenolates or bismuth oxysulfonates and to the use thereof as pigments and coating agents. They are preferably solid solutions, especially solid solutions mainly in the tetragonal crystal lattice of bismuth oxyhalide.Type: GrantFiled: May 3, 2004Date of Patent: April 14, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Martin Müller, Didier Bauer