Mica, Shell, Scale, Platelet, Or Lamellate Patents (Class 106/415)
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Publication number: 20110237726Abstract: The present invention relates to treated mineral filler products comprising a) at least one mineral filler, b) a treatment layer located on the surface of said mineral filler(s), said treatment layer comprising at least one saturated C8 to C24 aliphatic carboxylic acid; and at least one di and/or trivalent cation salt of one or more saturated C8 to C24 aliphatic carboxylic acid, wherein the weight ratio of all of said aliphatic carboxylic acid salt(s):all of said aliphatic carboxylic acid(s) is from 51:49 to 75:25; and said treatment layer is present in an amount of at least 2.5 mg/m2 of said mineral filler. Furthermore the present invention relates to processes to prepare such treated mineral filler products, and to their uses, notably in plastic applications, and especially in polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.Type: ApplicationFiled: August 19, 2009Publication date: September 29, 2011Inventors: Patrick A.C. Gane, Matthias Buri, René Burkhalter
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Publication number: 20110237683Abstract: The present invention relates to pigment compositions with improved and adjustable sparkling effect comprising A) a platelet-like perlite; and B) an effect pigment; and a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass. The pigment compositions show an improved sparkle effect; in particular an attractive high sparkle intensity.Type: ApplicationFiled: February 1, 2011Publication date: September 29, 2011Applicant: BASF SEInventors: Raimund Schmid, Carolyn Lavallee, Steven A. Jones, James Carroll
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Patent number: 8026299Abstract: A protective and decorative coating composition including about 2 to 10 different colorants which in combination with a resinous composition produce a desired visible coating. A majority of the colorants has a maximum haze of about 10% and exhibits an absorbance peak in the visible spectrum wherein at least about 50% of the total absorbance in the visible spectrum occurs at wavelengths within about 50 nm of the wavelength of the peak absorbance.Type: GrantFiled: September 19, 2009Date of Patent: September 27, 2011Assignee: PPG Industries Ohio, Inc.Inventors: Noel R. Vanier, Calum H. Munro, Eldon L. Decker, Rachel B. Wilson, Matthew E. Wehrle
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Patent number: 8016934Abstract: The present invention relates to a pearl pigment obtained by coating the surface of a flaky powder with a colored metal or a colored metal oxide and further coating the surface of the above colored metal- or colored metal oxide-coated flaky powder with a colorless metal or a colorless metal oxide, wherein when the pearl pigment is applied onto the surface of black artificial leather in an average amount of 0.05 mg/cm2 and the intensity of light reflected from the pearl pigment is measured using illuminant C at a 2° viewing angle with a spectrophotometric colorimeter which is provided with a sheet polarizer S on the light incident side and a sheet polarizer P on the light receiving side, the powder reflection light which is incident to the pearl pigment as a measurement sample at an angle of 45° to the direction normal to the surface of the sample and is received in the direction normal to the surface of the sample has absolute values a* and b* of 10 or less, and make-up cosmetics containing the pearl pigment.Type: GrantFiled: December 15, 2005Date of Patent: September 13, 2011Assignees: Kao Corporation, Nihon Koken Kogyo KKInventors: Eiichiro Misaki, Hiroyuki Shiomi, Maoya Adachi, Takahiro Kaida
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Patent number: 8007583Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack. The present effect pigments may be used in cosmetic and industrial applications.Type: GrantFiled: February 12, 2005Date of Patent: August 30, 2011Assignee: BASF CorporationInventors: Daniel J. Fuller, Curtis J. Zimmermann
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Patent number: 7993444Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack. The present effect pigments may be used in cosmetic and industrial applications.Type: GrantFiled: October 19, 2006Date of Patent: August 9, 2011Assignee: BASF Catalysts LLCInventors: Daniel S. Fuller, Curtis J. Zimmermann
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Patent number: 7993443Abstract: A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack. The present multilayer effect pigment may be used in cosmetics or personal care products.Type: GrantFiled: February 10, 2006Date of Patent: August 9, 2011Assignee: BASF Catalysts LLCInventors: Daniel S. Fuller, Curtis J. Zimmermann
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Patent number: 7935184Abstract: The present invention provides a method for preparing an imidazolium surfactant using a mixing apparatus. The present invention also provides a nano-composite comprising a clay and the imidazolium surfactant, and a composition comprising a polymer and the nano-composite. The nano-composite is practically useful in formulating compositions such as rubber and tire products with improved and well-balanced properties including gas permeability, cure properties, and/or mechanical properties etc.Type: GrantFiled: June 19, 2006Date of Patent: May 3, 2011Assignee: Bridgestone CorporationInventors: Hiroyuki Fudemoto, Xiaorong Wang, Victor J. Foltz
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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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Publication number: 20110064779Abstract: Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ?S and at least one optically active coating having a density ?M, the substrate having an average size d50 of 3 to 8 ?m and an average height hS of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.Type: ApplicationFiled: April 15, 2009Publication date: March 17, 2011Inventors: Michael Gruener, Ulrich Schmidt, Günter Kaupp, Peter Krueger, Jens Depner, Katrin Steinbach, Ralph Schneider, Frank Henglein
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Patent number: 7906178Abstract: The invention relates to the use of light-colored or transparent particulate semiconductor materials or particulate substrates that are coated with said semiconductor materials as a hardening and/or drying additive and/or for increasing the thermal conductivity of lacquer systems and printing colors.Type: GrantFiled: June 18, 2003Date of Patent: March 15, 2011Assignee: Merck Patent GmbHInventor: Adalbert Huber
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Patent number: 7875112Abstract: The present invention relates to surface-modified effect pigments based on flake-form substrates which are distinguished by the fact that they are sheathed with one or more layers of immobilised LCST and/or UCST polymers. The invention furthermore relates to a process for the production of the surface-modified effect pigments and to the use thereof in surface coatings, water-borne coatings, powder coatings, paints, printing inks, security printing inks, plastics, concrete, in cosmetic formulations, in agricultural sheeting and tarpaulins, for the laser marking of papers and plastics, as light protection, as pigment for corrosion protection and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: March 18, 2009Date of Patent: January 25, 2011Assignee: Merck Patent GmbHInventors: Adalbert Huber, Marc Entenmann, Thadeus Schauer
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Patent number: 7846249Abstract: A pigment aqueous-medium dispersion and coating material which have no particle feeling and exhibit a highly excellent silky feeling, the pigment aqueous-medium dispersion is a dispersion of a photoluminescent pigment in an aqueous medium, characterized in that the photoluminescent pigment is flaky titanic acid obtained by treating layered titanate with acid and then reacting an organic basic compound with the treated layered titanate to delaminate, and the flaky titanic acid has an average longer diameter of 5 to 30 ?m and an average thickness of 0.5 to 300 nm.Type: GrantFiled: March 14, 2006Date of Patent: December 7, 2010Assignees: Otsuka Chemical Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kenji Kawazu, Susumu Umemura, Hiroyoshi Mori, Daisuke Suzuki, Minoru Yamamoto
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Patent number: 7842130Abstract: The present invention relates to a complex inorganic color effect pigment material based on multiply coated platelet-shaped substrates wherein one of the layers is a complex inorganic colored pigment. The present color effect pigment may be used in automotive applications, security inks, and decorative coatings.Type: GrantFiled: August 15, 2006Date of Patent: November 30, 2010Assignee: BASF CorporationInventors: Curtis J. Zimmermann, Frank Mazella
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Patent number: 7837777Abstract: The invention provides a metallic pigment composition capable of preventing gelation of a UV metallic ink or a UV metallic coating material containing an ultraviolet-curable resin and providing good metallic effect and the stability with lapse of time and a UV metallic ink composition and a UV metallic coating material composition using it. The metallic pigment composition contains metal flakes and a nitrocellulose as essential components and the nitrocellulose is contained at a ratio in a range of 0.1 to 12 parts by mass to the metal flakes 100 parts by mass. The UV metallic ink and a UV metallic coating material are provided by adding the metallic pigment composition. The surfaces of the metal flakes are preferable to be coated with a phosphorus compound.Type: GrantFiled: February 7, 2005Date of Patent: November 23, 2010Assignee: Toyo Aluminium Kabushiki KaishaInventors: Akihiko Ikeya, Yoshikazu Inoue
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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: 20100178308Abstract: The invention relates to pigment based on (multiple) coated platelet-shaped substrates comprising an outer layer which is obtained by treatment with a metal oxide/hydroxide and then a phosphate ester, or phosphonate, or a salt thereof, with the proviso that the phosphate ester, or phosphonate do not contain fluorine, to a method for producing said pigments and the use thereof. The outer layer provides a very good photo-stabilisation of the TiO2coated platelet-shaped substrates, such as mica, combined with a good water resistance and an anti-yellowing performance.Type: ApplicationFiled: November 26, 2007Publication date: July 15, 2010Applicant: CIBA CORPORATIONInventors: Kazuhisa Iwasa, Marcel Hahn, Philippe Bugnon
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Patent number: 7754788Abstract: The invention relates to a light plaster mixture in pasty form which has improved storage stability. This is based on a composition which contains a binder, inorganic fillers, light fillers, water and also further additives. The light plaster mixture according to the invention can be used in the form of final coats on any bases.Type: GrantFiled: August 24, 2006Date of Patent: July 13, 2010Assignee: Alsecco GmbH & Co. KGInventors: Matthias Brox, Uwe Michaelis, Uwe Befurt, Holger Rettig
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Patent number: 7727625Abstract: A protective and decorative coating composition including about 2 to 10 different colorants which in combination with a resinous composition produce a desired visible coating. A majority of the colorants has a maximum haze of about 10% and exhibits an absorbance peak in the visible spectrum wherein at least about 50% of the total absorbance in the visible spectrum occurs at wavelengths within about 50 nm of the wavelength of the peak absorbance.Type: GrantFiled: January 31, 2005Date of Patent: June 1, 2010Assignee: PPG Industries Ohio, Inc.Inventors: Noel R. Vanier, Calum H. Munro, Eldon L. Decker, Rachel B. Wilson, Matthew E. Wehrle
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Publication number: 20100129411Abstract: The present invention relates to five-layered pigments based on multicoated platelet-shaped substrates which comprise a layer sequence comprising (A) a layer of SnO2 having a layer thickness of 0.1-50 nm, (B) a high-refractive-index coating consisting of TiO2 in the rutile modification having a layer thickness of 10-800 nm, (C) a colorless coating having a refractive index n?1.8 having a layer thickness of 20-800 nm, (D) a high-refractive-index coating consisting of SnO2 having a layer thickness of 0.1-50 nm, (E) a layer of TiO2 in the rutile modification having a layer thickness of 10-800 nm, and optionally (F) an outer protective layer, and to the use thereof in paints, coatings, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as dopants for the laser marking of papers and plastics, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.Type: ApplicationFiled: July 22, 2009Publication date: May 27, 2010Inventors: Christoph Schmidt, Andrea Heyland, Sabine Schoen, Veronika Hochstein, Uta Hensen
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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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Publication number: 20100040788Abstract: The present invention relates to a composition for coating vitreous and non-vitreous surfaces such as ceramics, metals, and glass for providing a coating with the appearance and color of actual metals such as copper, gold, silver and stainless steel.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Inventor: Patricia P. McClendon
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Patent number: 7648032Abstract: Disclosed herein are a method of reductively bleaching a mineral slurry comprising adding in the mineral slurry an effective amount of a formamidine sulfinic acid (FAS) and an effective amount of a borohydride to reductively bleach the mineral slurry, compositions comprising a mineral slurry, a FAS, and a borohydride, and final products comprising a mineral obtained by the method disclosed herein.Type: GrantFiled: March 22, 2005Date of Patent: January 19, 2010Assignee: Imerys Pigments, Inc.Inventors: Jun Yuan, Robert J. Pruett, Larry C. Powell
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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: 7594962Abstract: The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the abovementioned process materials with a defined thickness in the region of ±10%, preferably ±5%, of the average thickness are available.Type: GrantFiled: January 12, 2004Date of Patent: September 29, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Patrice Bujard, Andreas Mühlebach, Paul Adriaan Van Der Schaaf
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Patent number: 7579079Abstract: The present invention relates to UV-stabilised particles which are distinguished by the fact that they reflect or absorb light having wavelengths of from 290 to 500 nm. The invention furthermore relates to a process for the production of the particles according to the invention and to the use thereof in surface coatings, water-borne coatings, powder coatings, paints, printing inks, security printing inks, plastics, concrete, in cosmetic formulations, in agricultural sheeting and tent awnings, for the laser marking of papers and plastics, as light protection, and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: June 23, 2003Date of Patent: August 25, 2009Assignee: Merck Patent GmbHInventor: Adalbert Huber
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Patent number: 7578879Abstract: The present invention relates to surface-modified effect pigments based on flake-form substrates which are distinguished by the fact that they are sheathed with one or more layers of immobilized LCST and/or UCST polymers. The invention furthermore relates to a process for the production of the surface-modified effect pigments and to the use thereof in surface coatings, water-borne coatings, powder coatings, paints, printing inks, security printing inks, plastics, concrete, in cosmetic formulations, in agricultural sheeting and tarpaulins, for the laser marking of papers and plastics, as light protection, as pigment for corrosion protection and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: September 4, 2003Date of Patent: August 25, 2009Assignee: Merck Patent GmbHInventors: Adalbert Huber, Marc Entenmann, Thadeus Schauer
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Publication number: 20090185992Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a black background has a CIELAB hue angle, hab, from about 40 to about 320 degrees, wherein L* is from about 35 to about 80, and the chroma value is less than 5. A substrate is coated with iron oxide by oxidizing an iron salt to form a pigment. The pigment may be made by a process of coating iron oxide on a substrate by oxidizing an iron salt. During the coating of the iron oxide, the pH of the mixture is increased. The coating formed has a Fe(III)/Fe(II) ratio of greater than 2. The pigments may be used in a variety of applications including coating, ink, plastic, and cosmetic compositions.Type: ApplicationFiled: January 18, 2008Publication date: July 23, 2009Inventors: Christelle Conan, Aaron M. Hollman, Philippe Schottland, Stephane Nicolas, Marguerite Debacker, Aurelie Antonowicz, Kenneth A. Fields, II
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Publication number: 20090090275Abstract: The invention discloses multilayer allochroic pigments having angle dependence of the interference colors and the production processes thereof, in which a synthetic flake of silicate is used as the substrate, and a metal oxide coating with refractive index of more than 1.8 and an oxide coating with refractive index of less than 1.8 are deposited alternately on a surface of the flake of silicate, the number of the coatings is at least three, and said oxide coating with refractive index of less than 1.8 always lies between two metal oxide coatings with refractive index of more than 1.8. The processes involve a wet chemical hydrolysis step to alternately deposit said oxide coating with high refractive index and said oxide coating with high refractive index on the surface of the flake of silicate. The present pigments, which exhibit different strong interference colors as observed at different view angles, could be produced at a low cost and by a simple process.Type: ApplicationFiled: June 9, 2005Publication date: April 9, 2009Applicant: SHANTOU LONGHUA PEARL LUSTRE CO., LTD.Inventors: Jiansheng Fu, Yiting Peng, Xiaohui Tian
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Patent number: 7503971Abstract: A surface coating composition which exhibits low solar absorption and preferential emission at wavelengths corresponding to atmospheric windows in the infra-red regions is provided by the addition of microspheres to a composition containing a solar reflective pigment.Type: GrantFiled: June 3, 2002Date of Patent: March 17, 2009Assignee: Skycool Pty Ltd.Inventors: John Wesley Butler, legal representative, Conrad Stephen Wojtysiak
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Publication number: 20090056591Abstract: The invention relates to weather-stable pearlescent pigments having improved application properties based on a glass flake coated with highly refractive metal oxides and having a protective coat on its top metal oxide layer. The pigments of the invention are characterized in that the glass flake exhibits an average thickness of from 50 nm to 500 nm, to which, according to a variant A, a metal oxide layer having a refractive index n greater than 1.8 and containing TiO2 having a rutile content of from 80% to 100% by weight and a protective coat of SiO2 are applied, or, according to a variant B, a metal oxide layer having a refractive index n greater than 1.Type: ApplicationFiled: February 23, 2007Publication date: March 5, 2009Inventors: Ulrich Schmidt, Gunter Kaupp, Dirk Schumacher
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Publication number: 20090038513Abstract: The invention relates to a modified pearlescent pigment and its production process by post-coating. The pigment includes a sheet substrate, titanium dioxides coated on the substrate and hydrates of metal phosphate(s) and metal oxide(s) on the titanium dioxide coating. This pigment could keep color stable during its use and exhibit excellent discoloration resistance caused by ultraviolet as well as prevent yellowing during its use in use polyolefin compositions containing antioxidant.Type: ApplicationFiled: June 30, 2005Publication date: February 12, 2009Inventors: Yizhong Lin, Wensong Jin
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Patent number: 7485183Abstract: Pigment mixtures which have at least two components, where component A comprises effect pigments based on glass flakes and component B comprises flake-form, needle-shaped, spherical or crystalline colorants or fillers, and to the use thereof, in particular in cosmetic formulations and for the coloring or as a coating of products in the foods and pharmaceuticals sector are described.Type: GrantFiled: March 29, 2004Date of Patent: February 3, 2009Assignee: Merck Patent GmbHInventors: Veronika Hochstein, Sabine Schoen
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Patent number: 7455726Abstract: The present invention relates to photostabilised effect pigments in which one or more calcined and vanadium-containing oxide layers, alone or mixed with sulfates, borates or phosphates, have been applied to a substrate, to a process for the preparation thereof, and to the use thereof in plastics, paints, coatings, printing inks, cosmetics, films, in security printing, for laser marking, in thermal protection or for colouring seed.Type: GrantFiled: April 27, 2004Date of Patent: November 25, 2008Assignee: Merck Patent GmbHInventors: Ulrich Schoenefeld, Padma Kaviratna
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Patent number: 7419538Abstract: Highly anti-corrosive thin-platelet like metal pigments having high corrosion resistance and good dispersibility characterized in that the inherent metallic luster of the thin-platelet like metal substrates is maintained without demanding the original surface smoothness are provided. The highly anti-corrosive thin-platelet like metal pigments comprising, on the surface of thin-platelet like metal substrates treated with phosphoric acid compounds and/or boric acid compounds, one or more coated layers containing one or more hydrated metal oxides of one or more metals selected from the group consisting of silicon, aluminum, zirconium, titanium and tin.Type: GrantFiled: July 1, 2002Date of Patent: September 2, 2008Assignee: Merck Patent GmbHInventors: Bangyin Li, Nobuaki Nakamura, Katsuhisa Nitta
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Patent number: 7416688Abstract: Disclosed are transparent conductive pigments of flake-form substrates coated with a conductive layer, where the number-weighted mean particle area F50 of the transparent conductive pigments is greater than or equal to 150 ?m2, and processes for the production of the pigments, and the use thereof.Type: GrantFiled: May 17, 2005Date of Patent: August 26, 2008Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Gerhard Pfaff, Reinhold Rueger, Otto Stahlecker, Frank Ott
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Patent number: 7413599Abstract: The invention relates to pearlescent pigments with a platelet-shaped substrate comprising metal oxide and having a first and a second protective layer, said metal oxide having a refractive index of greater than 1.8, there being on the platelet-shaped substrate a first protective layer comprising cerium oxide and/or cerium hydroxide and a second protective layer of SiO2, applied to which is an organic chemical aftercoat comprising at least one silane having at least one functional bond group and at least one silane without a functional bond group, it being possible for metal oxide layers other than cerium oxide and SiO2 to be disposed between the first and the second protective layer. The invention further relates to a process for preparing these pigments, and to the use thereof.Type: GrantFiled: August 26, 2005Date of Patent: August 19, 2008Assignee: Eckart GmbH & Co. KGInventors: Frank Henglein, Ulrich Schmidt, Peter Krüger, Günter Kaupp
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Patent number: 7396587Abstract: This invention relates to a single- or multilayer, oriented film formed from polyester and at least one inorganic black pigment. The inventive films include at least one layer which has, alongside polyester, an amount of from 0.5 to 75% by weight of particles incorporating iron oxide as black pigment.Type: GrantFiled: April 18, 2006Date of Patent: July 8, 2008Assignee: Mitsubishi Polyester Film GmbHInventors: Holger Kliesch, Thorsten Kiehne, Franz Hora, Ingo Fischer
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Patent number: 7396401Abstract: Effect pigments based on a flake-form substrate that have a circular or elliptical shape or have the shape of a polygon, the preparation thereof, and the use thereof, for example, in paints or coatings, or as tracers.Type: GrantFiled: July 20, 2004Date of Patent: July 8, 2008Assignee: Merck Patent GmbHInventors: Michael Jungnitz, Gerald Fuchs-Pohl, Reinhold Rueger
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Publication number: 20080153922Abstract: An object of the present invention is to provide a filler capable of exhibiting semitransparent foggy effects as in fogged glasses. The present invention provides a filler comprising: a transparent or semitransparent thin platelet-like substrate; a particle layer or coating layer (hereinafter, referred to as a first layer) which is formed on the surface of the thin platelet-like substrate and composed of a hydrous oxide, carbonate, or calcined product thereof, of at least one metal (hereinafter, referred to as a first metal) selected from the group consisting of Mg, Al, and Ca; a coating layer (hereinafter, referred to as a second layer) which coats the thin platelet-like substrate comprising the first layer formed thereon and is composed of an Si hydrous oxide or calcined product thereof; and a coating layer (hereinafter, referred to as a third layer) which coats the second layer and is composed of a Ti hydrous oxide or calcined product thereof.Type: ApplicationFiled: December 21, 2007Publication date: June 26, 2008Inventors: Tamio Noguchi, Yukitaka Watanabe, Fumiko Sasaki
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Patent number: 7387669Abstract: Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 ?m, an average platelet thickness from 300 to 600 nm and an aspect ratio from 15 to 70.Type: GrantFiled: October 23, 2004Date of Patent: June 17, 2008Assignee: BASF AktiengesellschaftInventors: Norbert Mronga, Raimund Schmid, Oliver Seeger
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Publication number: 20080134941Abstract: The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 ?m, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.Type: ApplicationFiled: February 8, 2006Publication date: June 12, 2008Inventor: Kazutoshi Sanada
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Publication number: 20080115694Abstract: A pearlescent pigment, wherein the pigment is an inorganic material and the color of a homogeneous coating of the pigment, measured over a white background, is selected from the group consisting of: a CIELAB L* value of about 30 or less and a chroma value of about 3 or less; a CIELAB hue angle, hab, from about 50 to about 80 degrees, wherein L* is not more than about 85, and the chroma value is greater than 22; a CIELAB hue angle, hab, from about 80 to about 275 degrees, wherein L* is not more than about 80, and the chroma value is greater than about 10; and a CIELAB hue angle, hab, from not less than about 275 to not more than about 50 degrees, wherein L* is not more than about 85, and the chroma value is greater than about 9. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.Type: ApplicationFiled: October 31, 2007Publication date: May 22, 2008Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Publication number: 20080118448Abstract: The invention relates to a colored, platelet-shaped metal pigment comprising a base pigment comprising metal, a layer of silicon dioxide, and, subsequently, a layer or two or more layers comprising one or more coloring materials. The invention further relates to a method for the production of a colored metal pigment of this kind, and also to the use thereof in cosmetics.Type: ApplicationFiled: December 15, 2004Publication date: May 22, 2008Inventor: Peter Krüger
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Patent number: 7374609Abstract: The present invention relates to pigments whose particles have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm and a thickness of from 50 nm to 1.5 ?m and a ratio of length to thickness of at least 2:1, the particles having a core of a metallically reflecting material having two substantially parallel faces, the distance between which is the shortest axis of the core, comprising (a), optionally, on one parallel face of the core, an SiOy layer wherein 0.95<y?2.0, (b), on the SiOy layer, an SiOx layer wherein 0.03<x?0.95, and (c), on the SiOx layer, an SiOz layer wherein 0.95<z?2.0, to a method for the production thereof, and to the use thereof in paints, textiles, ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The pigments without an SiOy layer produce brilliant colours. The pigments with an SiOy layer are opaque and exhibit brilliant colours with a metallic appearance.Type: GrantFiled: November 12, 2003Date of Patent: May 20, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Patrice Bujard, Philippe Bugnon
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Publication number: 20080110372Abstract: A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: Aaron M. Hollman, Stephane Nicolas, Philippe Schottland, Marguerite Debacker, Aurelie Antonowicz, Hai Hui Lin
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Patent number: 7344590Abstract: The present invention relates to silver pigments based on transparent, low-refractive-index, platelet-shaped substrates which have a high-refractive-index coating consisting of TiO2 having a layer thickness of 5-300 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additives for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.Type: GrantFiled: March 29, 2004Date of Patent: March 18, 2008Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Christoph Schmidt, Tanja Delp, Johann Dietz
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Publication number: 20080035017Abstract: The present invention relates to a process for preparing a pearl pigment, comprising the steps of (a) adding an aqueous solution of metal oxide to a substrate in a reactor and (b) adding ammonium bicarbonate aqueous solution as a precipitating agent.Type: ApplicationFiled: December 11, 2006Publication date: February 14, 2008Applicant: Hyundai Motor CompanyInventor: Eun Young Chung
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Patent number: RE41858Abstract: A pearlescent pigment based on a metal oxide-coated, platelet-shaped substrate and a top layer on the metal oxide layer, where the top layer comprises silicon dioxide, at least one further metal hydroxide or metal oxide hydrate and at least one organic coupling reagent. The further metal hydroxides or metal oxide hydrates are hydroxides or oxide hydrates of cerium, aluminum or zirconium, or mixtures thereof. The coupling reagents employed are organofunctional silanes, zirconium aluminates or metal acid esters.Type: GrantFiled: October 7, 2009Date of Patent: October 26, 2010Assignee: Merck Patent Gesellschaft MIT Beschrankter HaftungInventors: Joachim Duschek, Ralf Glausch