Patents Assigned to Eckart GmbH
  • Patent number: 9175166
    Abstract: A metallic effect pigment comprising at least three layers: A) a layer A which comprises at least one metal MA and has an average oxygen content OA, based on the total amount of MA and OA in the layer A, B) a layer B comprising at least one metal MB and having an average oxygen content OB of 0 to 77 atom %, more particularly of 0 to 58 atom %, based on the total amount of MB and OB in the layer B, C) a layer C which comprises at least one metal MC and has an average oxygen content OC, based on the total amount of MC and OC in the layer C, the average oxygen content OAC in layers A and C being determined in accordance with the formula (I) O AC = 1 2 ? ( O A M A + O A + O C M C + O C ) ( I ) and being situated within a range from 2 to 77 atom %, more particularly from 25 to 58 atom %. The disclosure further relates to processes for preparing this effect pigment and also to its use.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: November 3, 2015
    Assignee: ECKART GMBH
    Inventors: Bernhard Geissler, Wolfgang Herzing, Jasmin Bleisteiner, Martin Fischer, Ralph Schneider
  • Patent number: 9127165
    Abstract: The present invention relates to an effect pigment comprising a plate-shaped non-metallic substrate and at least one copper-containing coating, wherein the average particle size D50 of the effect pigment is more than 5 ?m and the copper content of the effect pigment is in a range from 3 to 70 wt.-%, relative to the total weight of the effect pigment. The invention furthermore relates to a method for producing the latter and use of the effect pigment in anti-fouling coatings.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 8, 2015
    Assignee: ECKART GMBH
    Inventors: Michael Grüner, Günter Kaupp, Thomas Voit, Dirk Schumacher, Andreas Gipp
  • Patent number: 9127169
    Abstract: The invention relates to a metallic effect pigment, which metallic effect pigment has a substantially homogeneous chemical composition comprising at least one metal M and having an average content of oxygen of from 25 to 58 atomic percent, based on the total content of M and oxygen. The invention further relates to a method for the production of said metallic effect pigment.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: September 8, 2015
    Assignee: ECKART GMBH
    Inventors: Martin Fischer, Wolfgang Herzing, Bernhard Geissler, Ralph Schneider
  • Publication number: 20150218387
    Abstract: The present invention relates to platelet-shaped anticorrosion pigments, wherein the platelet-shaped zinc-magnesium alloy pigments have a composition comprising 25.1 to 76.85 mol % of Zn, 23 to 67.3 mol % of Mg, 0.15 to 7.6 mol % of Mn, Be, Y, Li, Sn and mixtures thereof, 0 to 5 mol % of Al, Ti, Fe, Cu and mixtures thereof, based in each case on the total molar amount of the elements Zn, Mg, Mn, Be, Y, Li, Sn, Al, Ti, Fe and Cu, where the molar percentages add up to 100 mol %. The invention further relates to the use and production of these pigments.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 6, 2015
    Applicant: Eckart GmbH
    Inventors: Markus Rupprecht, Christian Wolfrum, Dominik Pfammatter, Mark Stoll, Harald Weiß, Thomas Klaumünzer
  • Patent number: 9084732
    Abstract: The present invention relates to a cosmetic formulation including a cosmetically acceptable medium and at least one silver-colored pigment, the silver-colored pigment including a nonmetallic platelet-shaped substrate and at least one ilmenite-containing coating.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: July 21, 2015
    Assignee: Eckart GmbH
    Inventors: Michael Gruner, Thomas Schneider, Gunter Kaupp, Christian Rummer, Dirk Schumacher
  • Patent number: 9051471
    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: Grant
    Filed: March 28, 2012
    Date of Patent: June 9, 2015
    Assignee: ECKART GMBH
    Inventors: Michael Grüner, Thomas Schneider, Günter Kaupp
  • Patent number: 9000068
    Abstract: The invention relates to metallic effect pigments with coating, comprising a platelet-shaped substrate, where the coating comprises at least one hybrid inorganic/organic layer, the hybrid layer having at least partly an inorganic network that has one or more inorganic oxide components, and having at least one organic component, the organic component being at least partly an organic oligomer and/or polymer which is covalently bonded at least partly to the inorganic network via one or more organic network formers. The invention further relates to a method of producing these metallic effect pigments, and to their use.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: April 7, 2015
    Assignee: Eckart GmbH
    Inventors: Stefan Trummer, Frank Henglein, Mariel Brauer
  • Patent number: 8980976
    Abstract: The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 17, 2015
    Assignee: Eckart GmbH
    Inventors: Frank Henglein, Stefan Trummer, Ulrich Schmidt, Günter Kaupp, Peter Krüger
  • 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: 8900658
    Abstract: The invention relates to a method for coating metallic effect pigments with silicon oxide, in which alkoxysilane(s) and/or silicon halide(s) in organic solvent are reacted with water in the presence of metallic effect pigments, where the reaction includes at least two steps, where (a) the reaction is carried out with addition of acid in a first step and with addition of base in a second step or where (b) the reaction is carried out with addition of base in a first step and with addition of acid in a second step. The invention further relates to the coated metallic effect pigments producible by way of the method of the invention, and also to the use thereof.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: December 2, 2014
    Assignee: Eckart GmbH
    Inventors: Phu Qui Nguyen, Pär Winkelmann
  • Publication number: 20140342094
    Abstract: The present invention relates to the use of a particle-containing powdered coating material, wherein the surface of the particles is at least partially covered with a coating additive, in cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying. Furthermore, the present invention relates to coating methods, in particular the above-named methods, using the powdered coating material according to the invention.
    Type: Application
    Filed: July 25, 2012
    Publication date: November 20, 2014
    Applicant: ECKART GMBH
    Inventors: Sebastian Höfener, Markus Rupprecht, Christian Wolfrum, Andreas Reis
  • Patent number: 8889107
    Abstract: The present invention relates to a nail varnish including at least one effect pigment and at least one micronized wax, and to a process for producing it. Furthermore, the invention relates to the use of at least one micronized wax in a nail varnish and to an article provided with the nail varnish. Moreover, the invention relates to a mixture of at least one pigment and at least one micronized wax.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 18, 2014
    Assignee: Eckart GmbH
    Inventors: Ulrich Schmidt, Peter Kruger, Michaela Gerstacker, Sonja Kurz, Barbara Mendler
  • Patent number: 8877332
    Abstract: The use of a mixture with spherical metal particles and metal flakes as a laser marking or laser weldability agent in a plastic, wherein the particle size distribution of the spherical metal particles and metal flakes, as determined with laser granulometry, in the form of the volume-averaged cumulative undersize particle size distribution, has a Dmixture, 90 value of <100 ?m and a Dmixture, 50 <60 ?m. Further, a masterbatch comprising a mixture with spherical metal particles and metal flakes also can be used. Additionally, the present subject matter may further relate to a laser markable and/or a laser weldable plastic comprising a mixture with spherical metal particles and metal flakes.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 4, 2014
    Assignee: Eckart GmbH
    Inventors: Stefan Trummer, Martin Schaal, Marco Greb
  • Patent number: 8864899
    Abstract: A platelet-shaped PVD metallic effect pigment having first and second outer faces, the platelet-shaped PVD metallic effect pigment having at least one PVD layer, the at least one PVD layer including elemental metal with clusters of elemental metal and metal oxide. The amounts of elemental metal in the first outer face and in the second outer face of the PVD metallic effect pigment are different from one another and they differ by at least 10 atom %. The disclosure further relates to a method for producing these platelet-shaped PVD metallic effect pigments, and to their use.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Eckart GmbH
    Inventors: Bernhard Geissler, Wolfgang Herzing, Frank Henglein, Ralph Schneider, Martin Fischer
  • Patent number: 8851649
    Abstract: A 1K UV-ink jet printing ink composition comprising effect pigments, wherein the composition comprises: a) at least one difunctional (meth)acrylate monomer, b) at least one photoinitiator, c) effect pigments having a volume averaged particle size distribution with a D98<10 ?m, d) optionally trifunctional and/or polyfunctional (meth)acrylate monomers, and wherein the viscosity of the ink jet printing ink composition is at maximum 30 mPas, measured at 25° C. for 10 minutes with a Brookfield R/S rheometer using a double gap cylinder according to DIN 53453 (German Industrial Standards) at 150 rpm and wherein the total concentration of the at least one difunctional (meth)acrylate monomer of a) and the trifunctional and/or polyfunctional (meth)acrylate monomers of d) is in a range of 75 to 100 wt.-%, based on the total amount of (meth)acrylate monomers.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: October 7, 2014
    Assignee: Eckart GmbH
    Inventors: Stefan Engel, Dieter Prölβ, Jörg Männig
  • Publication number: 20140241937
    Abstract: The invention relates to the use of a particle-containing powdered coating material in a coating method selected from the group consisting of cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying, wherein the particles have a relative deformability factor Vm of at most 0.1 and the relative deformability factor is defined according to Formula (I): V m = d D 50 , ( I ) wherein d is the average smallest thickness of the particles, measured vertical to and in the middle half of the longitudinal axis of the particles, and D50 is the average diameter of the volume-averaged particle-size distribution. The invention furthermore relates to a method for coating.
    Type: Application
    Filed: July 25, 2012
    Publication date: August 28, 2014
    Applicant: ECKART GMBH
    Inventors: Sebastian Höfener, Markus Rupprecht, Christian Wolfrum, Andreas Reis
  • Publication number: 20140230692
    Abstract: The present invention relates to the use of a particle-containing powdered coating material, wherein an additive has been at least partially applied to the surface of the particles, in coating methods, in particular in cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying. Furthermore, the present invention relates to coating methods, in particular the above-named methods, using the powdered coating material according to the invention.
    Type: Application
    Filed: July 25, 2012
    Publication date: August 21, 2014
    Applicant: Eckart GmbH
    Inventors: Sebastian Hofener, Markus Rupprecht, Christian Wolfrum, Marco Greb, Andreas Reis
  • Patent number: 8765103
    Abstract: The present invention is directed to a cosmetic composition comprising an effect pigment based on a glass flake as a substrate with a coating, said coating comprising at least one layer of at least one high refractive material, said material having a refractive index of at least 1.8, and/or a semitransparent metal coating wherein said glass flakes comprising the following composition: 65-75 wt.-% silicon oxide, preferably SiO2 2-9 wt.-% aluminium oxide, preferably Al2O3 0.0-5 wt.-% calcium oxide, preferably CaO 5-12 wt.-% sodium oxide, preferably Na2O 8-15 wt.-% boron oxide, preferably B2O3 0.1-5 wt.-% titanium oxide, preferably TiO2 0.0-5 wt.-% zirconium oxide, preferably ZrO2 based on the weight of said glass flakes. The invention is also directed to the use of the cosmetic composition.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 1, 2014
    Assignees: Glassflake Limited, Eckart GmbH
    Inventors: Günter Kaupp, Ulrich Schmidt, Katrin Steinbach, Dirk Schumacher
  • Publication number: 20140170410
    Abstract: The present invention relates to a method for applying a coating to a substrate using cold plasma, wherein particles provided with a polymer coating are fed into a cold plasma at less than 3,000 K and the particles activated by this are deposited on a substrate. The present invention furthermore relates to a substrate coating which can be obtained by the methods according to the invention. The present invention furthermore relates to the use of platelet-shaped particles with a polymer coating with an average thickness of less than 2 ?m in the coating of a substrate using a cold plasma.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 19, 2014
    Applicant: ECKART GMBH
    Inventors: Markus Rupprecht, Christian Wolfrum, Marco Greb, Eckart Theophile
  • Patent number: 8735461
    Abstract: A printing ink, preferably ink-jet ink, containing pearlescent pigments and at least one of at least one solvent, at least one radiation-curable component and at least one binder, wherein the pearlescent pigments comprise a substantially transparent platelet-shaped substrate having a density ?S and at least one optically active coating having a density ?M, and the pearlescent pigments have a d90 value for a cumulative frequency distribution of a volume-averaged size distribution function with a range from 3.5 to 15 ?m. The invention further relates to a process for producing the printing ink.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: May 27, 2014
    Assignee: Eckart GmbH
    Inventors: Michael Grüner, Günter Kaupp, Stefan Engel, Barbara Mendler, Ulrich Schmidt