Mica, Shell, Scale, Platelet, Or Lamellate Patents (Class 106/415)
  • Patent number: 10676619
    Abstract: Disclosed are pigment powders containing only coated BiOCl flakes, which flakes area) BiOCl flakes having a coating containing yellow iron oxide Fe2O3*xH2O, optionally a colorant, optionally an adjuvant, and optionally SiO2, b) BiOCl flakes having a coating containing SiO2, optionally a colorant, and optionally an adjuvant, c) BiOCl flakes having a coating containing a colorant, SiO2, optionally yellow iron oxide Fe2O3*xH2O, and optionally an adjuvant, or d) BiOCl flakes having a coating containing Fe3O4 and optionally SiO2, to a process for the preparation of the pigment powders, and to the use thereof especially in cosmetic formulations.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 9, 2020
    Assignee: Merck Patent GmbH
    Inventors: Padma Kaviratna, Mark Tellefsen, Qingmin Cheng, Matthew Eddens, Qinyun Peng
  • Patent number: 10639247
    Abstract: Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: May 5, 2020
    Assignee: Merck Patent Gesellschaft
    Inventors: Mark Tellefsen, Qinyun Peng
  • Patent number: 10544309
    Abstract: A bright pigment of the present invention is a bright pigment including flaky particles and a metal oxide layer covering each surface of the flaky particles. The metal oxide layer has a thickness variation coefficient (standard deviation of thickness of the metal oxide layer/average thickness of the metal oxide layer) of 20% or less. The bright pigment preferably contains a sodium component, and the sodium component is Na2O. The content of Na2O in the flaky particles is 3% by mass or more and less than 9.5% by mass. The bright pigment preferably has a specific surface area of 5.0 m2/g or less.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: January 28, 2020
    Assignee: Nippon Sheet Glass Company, Limited
    Inventor: Takeaki Kitamura
  • Patent number: 10493724
    Abstract: An article including a magnetic-containing layer having a first surface and a second surface opposite the first; a first reflector layer external to the first surface of the magnetic-containing layer; a second reflector layer external to the second surface of the magnetic-containing layer; a first selective light modulator layer external to the first reflector layer; a second selective light modulator layer external to the second reflector layer; a first absorber layer external to the first selective light modulator layer; and a second absorber layer external to the second selective light modulator layer; wherein at least one of the first and second selective light modulator layers comprises at least one of a curing agent, and at least one coating aid is disclosed. Methods of making the disclosed article are also disclosed.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 3, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Johannes Seydel, Mark Tevis, Kangning Liang, Jeffrey James Kuna, Jaroslaw Zieba, Paul Thomas Kohlmann
  • Patent number: 10391043
    Abstract: The invention relates to an absorbent effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the absorbent effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 27, 2019
    Assignee: ECKART GMBH
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10344145
    Abstract: The present invention relates to colored laser-markable and laser-weldable polymeric materials which are distinguished by the fact that they comprise, as absorber, at least one doped tin oxide or indium oxide having a large specific surface area.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: July 9, 2019
    Assignee: Merck Patent GmbH
    Inventors: Reinhold Rueger, Ulrich Quittmann
  • Patent number: 10280308
    Abstract: The present invention relates to silver-colored effect pigments having a strong sparkle effect based on Al2O3 flakes and to the use thereof in paints, button pastes, automotive paints, automotive refinish paints, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, for coating seed, in security applications, as dopant for the laser marking of plastics and papers, as additive for the laser welding of plastics, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: May 7, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Johann Dietz, Cornelia Foerderer, Nicole Haferkorn, Gerhard Pfaff, Doreen McFarlane
  • Patent number: 10219989
    Abstract: A method of producing mixtures of interference pigments having special effects comprises mixing at least one large particle size interference pigment with at least one normal size interference pigment of predetermined colors and in proportions desired to obtain a unique effect.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 5, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Qinyun Peng, Philip Linz
  • Patent number: 10207479
    Abstract: An article including a magnetic-containing layer having a first surface and a second surface opposite the first; a first reflector layer external to the first surface of the magnetic-containing layer; a second reflector layer external to the second surface of the magnetic-containing layer; a first selective light modulator layer external to the first reflector layer; a second selective light modulator layer external to the second reflector layer; a first absorber layer external to the first selective light modulator layer; and a second absorber layer external to the second selective light modulator layer; wherein at least one of the first and second selective light modulator layers comprises at least one of a curing agent, and at least one coating aid is disclosed. Methods of making the disclosed article are also disclosed.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 19, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Johannes Seydel, Mark Tevis, Kangning Liang, Jeffrey James Kuna, Jaroslaw Zieba, Paul Thomas Kohlmann
  • Patent number: 10125261
    Abstract: The invention relates to pearlescent pigments comprising a largely transparent platelet-shaped synthetic substrate having a density ?S and at least one optically active coating having a density ?M, the substrate having an average size d50 from a range from 2.0 ?m to 8.0 ?m and an average height hS from a range from 40 nm to 110 nm and the total lead content of the pearlescent pigments is ?10 ppm. The invention further relates to a method for producing the pearlescent pigments, and also to the use thereof.
    Type: Grant
    Filed: October 10, 2010
    Date of Patent: November 13, 2018
    Assignee: ECKART GMBH
    Inventors: Ulrich Schmidt, Michael Gruner, Dirk Schumacher, Gunter Kaupp, Barbara Mendler
  • Patent number: 10059845
    Abstract: A preparation method of pearlescent pigment coating materials is provided. The method of the present invention lies in that titanium-iron ions in ilmenites are dissolved by using a hydrochloric acid at a certain temperature and pressure, and then ferrous chloride in the acidolysis solution is precipitated by adding hydrogen chloride gas, the remaining titanium-iron ions are separated from other colored ions by means of co-extraction using an extractant upon oxidation, and an enriched titanium oxydichloride solution and ferrous hydrous oxide are obtained by employing a fractional back extraction and enrichment method, the titanium oxydichloride solution can be used for mica-titanium based pearlescent pigment coating materials, and can also be used for preparing titanium dioxide; and the acidified ferrous hydrous oxide and the oxidized ferrous chloride can be used as iron based pearlescent pigment coating materials or used for preparing iron oxide pigments.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: August 28, 2018
    Assignee: Fujian Kuncai Material Technology Co., Ltd.
    Inventors: Bingkun Xie, Zhicheng Cao, Ming Fei, Jiwei Chen
  • Patent number: 10061065
    Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 28, 2018
    Assignee: VIAVI Solutions Inc.
    Inventors: Cornelis Jan Delst, Matthew R. Witzman, Paul T. Kohlmann, Charles T. Markantes
  • Patent number: 10040963
    Abstract: The present invention relates to electrically conductive pigments, to a process for the preparation thereof and to the use thereof, in particular in antistatic or dissipative articles or surfaces, for example in paints, coatings, printing inks or floorcoverings.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 7, 2018
    Assignee: Merck Patent GmbH
    Inventors: Reinhold Rueger, Bjoern Kleist
  • Patent number: 9931524
    Abstract: A metallic effect pigment with an additive, the additive being applied on at least a portion of the metallic effect pigment. The additive comprises, as structural units, at least one carboxylic acid having at least 4 carbon atoms and also at least one polyglycol ether. The carboxylic acid and the polyglycol ether are bonded covalently to one another. The disclosure is also directed to a method for producing these metallic effect pigments, and to the use thereof, as well as to a printing ink comprising the pigments.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: April 3, 2018
    Assignee: ECKART GMBH
    Inventors: Dieter Proelss, Stefan Trummer, Stephan Roth, Bärbel Gertzen, Wolfgang Pritschins, Jürgen Omeis
  • Patent number: 9909010
    Abstract: The present invention relates to interference pigments based on multicoated flake-form substrates which have on the surface of the substrate a layer sequence comprising (A0) optionally a high-refractive-index coating consisting of a layer of TiO2, (A) a high-refractive-index coating consisting of a mixture of TiO2 and Fe2O3, which may optionally be doped with one or more further oxides, (B) a high-refractive-index layer consisting of SnO2, (C) a high-refractive-index coating which absorbs in the visible wavelength region, and optionally (D) an outer protective layer, and to the use thereof, in particular in paints, coatings, industrial coatings, automobile paints, automotive refinish paints, coil coating, powder coatings, printing inks, plastics, pigment pastes, pigment preparations and in dry preparations, such as, for example, granules.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 6, 2018
    Assignee: Merck Patent GmbH
    Inventor: Christoph Schmidt
  • Patent number: 9678260
    Abstract: A high-chroma omnidirectional red structural color pigment. The omnidirectional structural color pigment is in the form of a multilayer stack that has a reflective core layer, a semiconductor absorber layer extending across the reflective core layer, and a high index of refraction dielectric layer extending across the semiconductor absorber layer. The multilayer stack reflects a single band of visible light with a hue between 0-40°, and preferably between 10-30°, on an a*b* Lab color map. The single band of visible light has a hue shift of less than 30° on the a*b* Lab color map when viewed from all angles between 0-45° normal to an outer surface of the multilayer stack.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: June 13, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Debasish Banerjee
  • Patent number: 9664832
    Abstract: A high-chroma omnidirectional red structural color pigment. The omnidirectional structural color pigment is in the form of a multilayer stack that has a reflective core layer, a semiconductor absorber layer extending across the reflective core layer, a dielectric absorber layer extending across the semiconductor absorber layer and a high index of refraction dielectric layer extending across the dielectric absorber layer. The multilayer stack reflects a single band of visible light with a hue between 0-40°, and preferably between 10-30°, on an a*b* Lab color map. The single band of visible light has a hue shift of less than 30° on the a*b* Lab color map when viewed from all angles between 0-45° normal to an outer surface of the multilayer stack.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 30, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Debasish Banerjee
  • Patent number: 9658375
    Abstract: A high-chroma omnidirectional red structural color pigment. The omnidirectional structural color pigment is in the form of a multilayer stack that has a reflective core layer, a metal absorber layer extending across the reflective core layer and a dielectric absorber layer extending across the metal absorber layer. The multilayer stack reflects a single band of visible light with a hue between 0-40°, and preferably between 10-30°, on an a*b* Lab color map. The single band of visible light has a hue shift of less than 30° on the a*b* Lab color map when viewed from all angles between 0-45° normal to an outer surface of the multilayer stack.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 23, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Debasish Banerjee
  • Patent number: 9637638
    Abstract: The present invention provides an iron oxide-coated layered silicate pigment that has no interference color, strongly exhibits the color inherent in iron oxide, and is excellent in gloss. The pigment of the present invention is an iron oxide-coated layered silicate pigment comprising a layered-silicate plate particle as base, and an iron oxide coated on the plate particle; wherein the iron oxide does not coat the surface portion of the plate particle or the iron oxide is localized on the edge portion rather than the surface portion of the plate particle. As the iron oxide, at least one kind selected from black iron oxide (Fe3O4) and red iron oxide (Fe2O3) can be used preferably. As the layered silicate, a mica-group layered silicate can be used preferably. The iron oxide-coated layered silicate pigment of the present invention can be incorporated into cosmetic preferably.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: May 2, 2017
    Assignee: TOPY KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Abiko, Ryuichi Seike, Tomohiro Hoshino
  • Patent number: 9639017
    Abstract: A toner including a resin; and a colorant wax comprising a plurality of colorant wax particles comprising a colorant core surrounded by a wax shell, wherein the colorant wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; and wherein the colorant wax is prepared by (a) melting and mixing a dry colorant with at least one wax to form a colorant concentrate, wherein the colorant concentrate contains at least 25 percent by weight of colorant; (b) milling the colorant concentrate of step (a) to form a milled colorant concentrate; (c) combining the milled colorant concentrate of (b) with water and dispersing to form the plurality of colorant wax particles; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.
    Type: Grant
    Filed: April 19, 2014
    Date of Patent: May 2, 2017
    Assignee: Xerox Corporation
    Inventors: Frank Ping-Hay Lee, Richard P. N. Veregin, Shigang S. Qiu, Michael J. D'Amato, Aurelian Valeriu Magdalinis, David John William Lawton
  • Patent number: 9631064
    Abstract: The present invention relates to a process for preparing a coloured effect pigment, comprising the steps of (a) preparing in an aqueous coating medium at least one layer of a hydroxyl-containing metal oxide on a substrate, thereby obtaining in the aqueous coating medium a first coloured pigment material CPM1 comprising the substrate coated with the hydroxyl-containing metal oxide, wherein the substrate is made of aluminium or aluminium alloy which optionally comprises at least one passivating layer, and wherein the hydroxyl-containing metal oxide is a hydroxyl-containing iron oxide or a hydroxyl-containing titanium oxide or a mixture thereof, (b) providing the first coloured pigment material CPM1 in a liquid post-treatment medium comprising one or more high boiling organic liquids, and (c) heating the liquid post-treatment medium to a temperature of at least 90° C. so as to convert the first coloured pigment material CPM1 to a second coloured pigment material CPM2.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: April 25, 2017
    Assignee: BASF SE
    Inventors: Aron Wosylus, Raimund Schmid
  • Patent number: 9631097
    Abstract: The present invention relates to weather-resistant pearlescent pigment, comprising a coated or uncoated platelet-shaped substrate which is selected from the group consisting of synthetic mica platelets, glass platelets, SiO2 platelets, Al2O3 platelets, synthetic boehmite platelets, BiOCl platelets and mixtures thereof, a chromophoric coating with at least one highly refractive metal oxide, and a top layer, wherein the top layer comprises the following layer sequence: a) a first layer made of tin oxide and/or tin hydroxide and/or hydrated tin oxide, b) a second cerium-containing layer which comprises cerium oxide and/or cerium hydroxide and/or hydrated cerium oxide, c) an organic-chemical coating applied to the cerium-containing layer which contains oligomeric silanes or consists of them, wherein the oligomeric silanes have one or more amino groups and the oligomeric silanes are chemically bonded with the cerium-containing layer.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 25, 2017
    Assignee: ECKART GMBH
    Inventors: Michael Grüner, Günter Kaupp, Thomas Schneider
  • Patent number: 9624378
    Abstract: The present invention concerns coated metal pigments, the production thereof, and the use thereof. The present invention also concerns coating agents containing the aforementioned metal pigments, as well as objects coated with such coating agents.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: April 18, 2017
    Assignee: ECKART GMBH
    Inventors: Frank Hippmann, Sebastian Hoefener, Oliver Struck, Oliver Bedford, Dirk Schumacher
  • Patent number: 9611390
    Abstract: The present invention relates to pigments which comprise a substrate and an iron(II) silicate-containing coating applied thereto, to a process for the preparation of these pigments, and to the use thereof.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: April 4, 2017
    Assignee: MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG
    Inventors: Johann Dietz, Doreen Warthe, Ute Honeit
  • Patent number: 9326923
    Abstract: Disclosed is a water-in-oil-type skin-whitening cosmetic, which has a moist feel without stickiness when used and has good emulsion stability over time even when accommodated in a glass container or a metal container. The water-in-oil-type skin-whitening cosmetic is characterized in that it contains an alkoxysalicylic acid or a salt thereof, an organic modified clay mineral, and a liquid fatty acid. It is preferable that the liquid fatty acid is selected from higher fatty acids having 12 to 22 carbon atoms and having a linear or branched alkyl chain, such as oleic acid, linolic acid, linolenic acid, and isostearic acid.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: May 3, 2016
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Tomomi Furukawara, Takayuki Omura
  • Patent number: 9212089
    Abstract: The present invention relates to a process for applying an optical coating to a substrate comprising the steps of (a) preparing an optical coating formulation comprising a solvent component and a film forming component; (b) using a die coater to form a coated substrate by applying the optical coating to a substrate, where the applied optical coating forms a wet film thereon having a thickness from 8 ?m to 100 ?m; (c) drying the coated substrate, where the coated substrate is in a substantially horizontal plane thereby converting the wet film to a dry film having a thickness of less than 1 ?m. The optical coating formulation comprises greater than 0.3 wt % to no more than 10 wt % solids relative to the total weight of the optical coating formulation. The coated substrate may be optionally cured.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: December 15, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Nanning Joerg Arsten, Pascal Josef Paul Buskens, Marnix Rooijmans
  • Patent number: 9096442
    Abstract: Complex inorganic titanate pigments with low dopant levels (i.e., less than about 5%) exhibit coloristic and enhanced infrared (IR) reflectance characteristics that make them useful in formulating colors exhibiting high IR reflectivity. This characteristic is becoming increasingly useful as a way to keep exterior surfaces and articles cooler during exposure to direct sunlight. Achieving this can decrease energy (e.g., cooling/air conditioning) consumption and costs. Low-loaded titanates can boost IR reflectivity by 1 to 10% in selected visual color spaces. Paint compositions containing those low loaded titanate pigments and a method for providing a surface with high infrared reflectance utilizing those pigments are also disclosed.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: August 4, 2015
    Assignee: The Shepherd Color Company
    Inventors: James White, Doris Montgomery
  • Patent number: 9080072
    Abstract: A white ink jet ink includes high index of refraction particles having an index of refraction greater than 1.6 and a diameter of less than 100 nanometers and low index of refraction particles having an index of refraction of less than 1.5 and a diameter of between 100 and 1000 nanometers.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: July 14, 2015
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexey S. Kabalnov, Vladek Kasperchik
  • Patent number: 8926746
    Abstract: Flaky particles of the present invention have a particle size distribution in which a value of D90/D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.7 ?m but not more than 25 ?m, and a maximum particle diameter is 90 ?m or less, where D10 is defined as a particle diameter at which a cumulative volume of particles reaches 10% when counted from the smaller side, and D90 is defined as a particle diameter at which a cumulative volume of particles reaches 90% when counted from the smaller side. A luster pigment of the present invention contains flaky particles and at least one selected from a metallic layer and a metallic oxide layer that are formed on at least a part of the surface of each of the flaky particles. The luster pigment has a particle size distribution in which a value of D90/D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 6, 2015
    Assignee: Nippon Sheet Glass Company, Limited
    Inventor: Takashi Wakamiya
  • Patent number: 8911546
    Abstract: The invention relates to a cosmetic composition for creating a cosmetic coating having a metallic and multicolored iridescent appearance, comprising a liquid phase and a PVD aluminum pigment, wherein said PVD aluminum pigment has diffractive structures containing from approximately 5,000 to approximately 20,000 structural elements per cm and a metallic aluminum content of from 90% to 100% by weight, based on the weight of the aluminum pigment, and is present in the cosmetic composition at a pigmentation level of from 1.0 to 8.0% by weight, based on the total weight of the cosmetic composition. The invention further relates to an artificial fingernail.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: December 16, 2014
    Assignee: Eckart GmbH
    Inventors: Frank Henglein, Thomas Schuster
  • Patent number: 8906154
    Abstract: A coating, ink, or article containing a pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III).
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: December 9, 2014
    Assignee: Sun Chemical Corporation
    Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
  • Patent number: 8900660
    Abstract: 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: Grant
    Filed: April 12, 2012
    Date of Patent: December 2, 2014
    Assignee: 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
  • Publication number: 20140349009
    Abstract: A bright pigment of the present invention is a bright pigment including flaky particles and a metal oxide layer covering each surface of the flaky particles. The metal oxide layer has a thickness variation coefficient (standard deviation of thickness of the metal oxide layer/average thickness of the metal oxide layer) of 20% or less. The bright pigment preferably contains a sodium component, and the sodium component is Na2O. The content of Na2O in the flaky particles is 3% by mass or more and less than 9.5% by mass. The bright pigment preferably has a specific surface area of 5.0 m2/g or less.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 27, 2014
    Applicant: Nippon Sheet Glass Company, Limited
    Inventor: Takeaki Kitamura
  • Publication number: 20140335348
    Abstract: A bright pigment of the present invention is a bright pigment including flaky particles and a metal oxide layer covering each surface of the flaky particles. The bright pigment has a particle diameter corresponding to a 90% volume-cumulative particle diameter from a small particle diameter side, in a particle size distribution, of 55 ?m or less. The flaky particles are formed of a material having a refractive index of 1.4 to 1.8. The flaky particles have an average thickness of 0.35 to 0.55 ?m and substantially do not contain flaky particles having a thickness of 0.15 ?m or less.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 13, 2014
    Inventor: Takeaki Kitamura
  • Patent number: 8882902
    Abstract: The present invention relates to a composite pigment comprising a substrate, said substrate being at least in part covered by at least one layer comprising at least one solid organic UV filter. The composite pigment can be prepared by a method comprising a step of subjecting a substrate, at least one solid organic UV filter, and optionally at least one solid inorganic UV filter, at least one additional UV filter and/or at least one coloring pigment, to a mechanochemical fusion process such as a hybridizer process. The composite pigment can be advantageously used as a component for a cosmetic composition.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: November 11, 2014
    Assignee: L'Oreal
    Inventors: Takahiro Suzuki, Takehiko Kasai
  • Publication number: 20140322536
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings, printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 30, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Noriyuki MATSUDA, Katsuhisa NITTA
  • Publication number: 20140322534
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments. and organic dyes.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: Merck Patent GmbH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Fumiko SASAKI, Satoru KOBAYASHI, Koshiro KUNII, Yuji TAKENAKA, Katsuhisa NITTA
  • Publication number: 20140275323
    Abstract: Oligomer-grafted nanofiller compositions and composites including oligomer-grafted nanofillers are disclosed. An oligomer-grafted nanofiller composition for disposition in a polymer matrix, the polymeric matrix comprising polymers derived from a plurality of polymerizable units, can include a nanoparticle, one or more coupling groups bonded to the nanoparticle; and one or more oligomers bonded to the one or more coupling groups. In an embodiment the oligomer is derived from two or more polymerizable units, at least one polymerizable unit being at least substantially similar to at least one of the polymerizable units of the polymer matrix. In another embodiment the oligomer comprises two or more polymerizable units and improves dispersion, interfacial strength, or both dispersion and interfacial strength between the nanoparticle and the polymer matrix. Composites and methods are also disclosed.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Francis R. Thibodeau, Yuqiang Qian, Andreas Stein, Christopher W. Macosko
  • Patent number: 8821627
    Abstract: The present invention relates to effect pigments based on substrates having an outer coating comprising metal oxide, hydroxide and/or oxide hydrate and at least one organic coupling agent.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: September 2, 2014
    Assignee: Merck Patent GmbH
    Inventor: Koshiro Kunii
  • Patent number: 8808447
    Abstract: 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: Grant
    Filed: March 8, 2012
    Date of Patent: August 19, 2014
    Assignee: 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
  • Publication number: 20140165878
    Abstract: The interference pigment with high color intensity includes: a platelet-shaped substrate including at least one of natural mica, synthetic mica, alumina flakes, glass flakes, and iron oxide flakes; a lower first metal oxide layer formed of Fe2O3 on the platelet-shaped substrate; a second metal oxide layer formed of MgO.SiO2 on the lower first metal oxide layer; and an upper first metal oxide layer formed of Fe2O3 on the second metal oxide layer.
    Type: Application
    Filed: July 15, 2013
    Publication date: June 19, 2014
    Applicant: CQV CO., LTD.
    Inventors: Kil-Wan Chang, Kwang-Soo Lim, Byung-Ki Choi, Jin-Hyoung Lee
  • Patent number: 8728226
    Abstract: Multilayer pearlescent pigments comprising platelet-shaped transparent substrates provided with an optically active coating, where the optically active coating includes at least a) an absorbing high-index layer A having a refractive index n?1.8 b) a low-index layer B having a refractive index n<1.8 c) a high-index layer C having a refractive index n?1.8 and also d) optionally at least one outer protective layer D and where the multilayer pearlescent pigments have a cumulative frequency distribution of a volume-averaged size distribution function, with the indices D10, D50, D90 and a span ?D in a range from 0.7-1.4, the span ?D being calculated in accordance with formula (I) ?D=(D90?D10)/D50??(I). The disclosure further relates to a method for producing these multilayer pearlescent pigments, and also to their use.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: May 20, 2014
    Assignee: Eckart GmbH
    Inventors: Dirk Schumacher, Michael Grüner, Günter Kaupp
  • Patent number: 8728228
    Abstract: Multilayer pearlescent pigments based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least a) a nonabsorbing high-index layer A having a refractive index n?1.8, b) a low-index layer B having a refractive index n<1.8 having an optical layer thickness >150 nm, c) an absorbing high-index layer C having a refractive index n?1.8 and also, d) optionally an outer protective layer D, wherein the multilayer pearlescent pigments have a cumulative frequency distribution of the volume-averaged size distribution function, with the indices D10, D50, D90 and a span ?D of 0.7-1.4, the span ?D being calculated in accordance with the formula ?D=(D90?D10)/D50. The disclosure further relates to a method for producing these multilayer pigments, and to their use.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: May 20, 2014
    Assignee: Eckart GmbH
    Inventors: Dirk Schumacher, Michael Grüner, Günter Kaupp
  • Patent number: 8715407
    Abstract: Multilayer pearlescent pigments comprising platelet-shaped transparent substrates provided with an optically active coating, where the coating includes at least (a) a nonabsorbing high-index layer A having a refractive index n?1.8, (b) a low-index layer B having a refractive index n<1.8, (c) a nonabsorbing high-index layer C having a refractive index n?1.8 and also (d) optionally at least one outer protective layer D where the pigments have a cumulative frequency distribution of a volume-averaged size distribution function, with the indices D10, D50, D90 and a span ?D in a range from 0.7-1.4, the span ?D being calculated in accordance with formula (I) ?D=(D90?D10)/D50??(I). The disclosure further relates to a method for producing these multilayer pearlescent pigments, and also to their use.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: May 6, 2014
    Assignee: Eckart GmbH
    Inventors: Dirk Schumacher, Michael Grüner, Günter Kaupp
  • Patent number: 8702861
    Abstract: An ink composition includes a water resistant aluminum pigment and water. The water resistant aluminum pigment is formed of an aluminum pigment and a covering film that contains Si and is formed on the surface of the aluminum pigment. A 50% average particle diameter of a corresponding circle obtained by calculation from areas of X-Y plain surfaces of the aluminum pigment is in a range from 0.5 pm to 3 pm. The coverage ratio of the covering film on the surface of the aluminum pigment, calculated from presence ratios of C, O, Al, and Si detected by XPS measurement at an incident angle of 30°, is in a range from 30% to 90%.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: April 22, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takayoshi Kagata, Tsuyoshi Sano, Toshimi Fukui, Saori Yamaki, Junko Nakamoto, Hideki Kawasaki
  • Patent number: 8697776
    Abstract: The invention relates to metallic effect pigments having a plateletlike metal core and, surrounding the plateletlike metal core, a homogeneous synthetic resin coating, the synthetic resin coating comprising polyacrylate and/or polymethacrylate and also organofunctional silane. The invention further relates to a process for preparing such metallic effect pigments, and to their use.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 15, 2014
    Assignee: Eckart GmbH
    Inventors: Dirk Schumacher, Thomas Schuster
  • Publication number: 20140090579
    Abstract: A colorant including a mixture of pigments is disclosed. The pigments have a similar coloration but different resistance to corrosion. The mixing ratio is selected to optimize the corrosion resistance against color brightness, and/or acidic corrosion resistance against alkali corrosion resistance of the colorant.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 3, 2014
    Inventors: Cornelis Jan DELST, VLADIMIR P. RAKSHA, DAVID DE LA FUENTE
  • Publication number: 20140080952
    Abstract: A thermally conductive filler composition and a resin composition comprising such filler compositions. The filler composition comprises a blend of a boron nitride, a metal oxide, and a silane. The filler composition can further comprise other filler components including, for example, glass fiber or glass flake. The filler compositions can be added to a resin composition to provide a thermally conductive resin such as, for example, a thermally conductive plastic.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 20, 2014
    Inventors: Chandrashekar Raman, Bei Xiang, Anand Murugaiah
  • Patent number: 8647429
    Abstract: 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: Grant
    Filed: February 2, 2011
    Date of Patent: February 11, 2014
    Assignee: Merck Patent GmbH
    Inventors: Sabine Melson, Volker Wilhelm, Ulrich Schoenefeld
  • Publication number: 20140018439
    Abstract: The present invention relates to a weather-resistant pearlescent pigment which consists of a platelet-shaped substrate coated with one or more highly refractive metal oxides, the platelet-shaped substrate being selected from the group consisting of synthetic mica flakes, glass flakes, SiO2 flakes, Al2O3 flakes, synthetic boehmite flakes, BiOCl flakes and mixtures thereof, and a top layer, wherein the top layer consists of the following layers: a) a cerium-containing layer, selected from the group consisting of cerium oxide, cerium hydroxide, hydrated cerium oxide, and mixtures thereof, the cerium-containing layer being applied directly to the highly refractive metal oxide layer, and b) an organic-chemical compatibilizing layer, which comprises the reaction products of oligomeric silanes, wherein the oligomeric silanes have one or more amino groups, the organic-chemical compatibilizing layer being applied directly to the cerium-containing layer a).
    Type: Application
    Filed: March 28, 2012
    Publication date: January 16, 2014
    Applicant: ECKART GMBH
    Inventors: Michael Gruner, Thomas Schneider, Gunter Kaupp