Patents Assigned to H. C. Starck GmbH
  • Patent number: 9919358
    Abstract: A sintered spray powder includes from 5 to 50 wt.-% of a metallic matrix, from 50 to 95 wt.-% of a hard material, and from 0 to 10 wt.-% of a wear-modifying oxide, each based on the total weight of the sintered spray powder. The metallic matrix comprises from 0 to 20 wt.-% of molybdenum based on the total weight of the metallic matrix. The hard material comprises at least 70 wt.-% of molybdenum carbide based on the total weight of the hard material. An average particle diameter of the molybdenum carbide in the sintered spray powder is <10 ?m, determined in accordance with ASTM E112.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 20, 2018
    Assignee: H.C. STARCK GMBH
    Inventor: Benno Gries
  • Publication number: 20180029118
    Abstract: A sintered composite material obtainable by a method which includes providing a composition which includes at least one hardness carrier and a base binder alloy, and sintering the composition. The base binder alloy includes from 66 to 93 wt.-% of nickel, from 7 to 34 wt.-% of iron, from 0 to 9 wt.-% of cobalt, and up to 30 wt.-% of one or more elements selected from W, Mo, Cr, V, Ta, Nb, Ti, Zr, Hf, Re, Ru, Al, Mn, B, N and C. The wt.-% proportions of the base binder alloy add up to 100 wt.-%.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Applicant: H.C. STARCK GMBH
    Inventor: BENNO GRIES
  • Patent number: 9879333
    Abstract: A process for producing a component includes providing a composition comprising hard material particles and a binder metal, and sintering the composition at a sintering temperature of from 1250° C. to 1400° C. for a period of from 3 to 15 minutes. The hard material particles comprise an inner core comprising fused tungsten carbide and an outer shell comprising tungsten carbide. The binder metal is selected from the group consisting of Co, Ni, Fe and alloys comprising at least one metal selected from Co, Ni and Fe.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: January 30, 2018
    Assignee: H. C. STARCK GMBH
    Inventors: Christian Gerk, Markus Zumdick
  • Patent number: 9856546
    Abstract: The invention provides for a cermet powder containing 75-90% by weight of at least one hard material powder, from 10 to 25% by weight of one or more matrix metal powders and up to 3% by weight of at least one modifier, wherein the matrix metal powder or powders contain from 0 to 38% by weight of cobalt, from 0 to 38% by weight of nickel, from 0 to 20% by weight of aluminum, from 0 to 90% by weight of iron and from 10 to 35% by weight of chromium and the sum of the contents of iron and chromium is in the range from 10 to 95% by weight and the sum of the contents of cobalt, nickel and iron is in the range from 65 to 95% by weight. The invention also relates to a cermet and a process to make the cermet containing the cermet powder and shaped article coated with the cermet powder and a process to make the shaped article.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: January 2, 2018
    Assignee: H. C. Starck GmbH
    Inventors: Jürgen Fischer, Aloys Eiling, Frank Schrumpf, Stefan Zimmermann, Peter Thienel, Roland Scholl
  • Patent number: 9821372
    Abstract: A method for producing a composite material includes providing a composition comprising at least one hardness carrier and a base binder alloy, and sintering the composition. The base binder alloy comprises from 66 to 93 wt.-% of nickel, from 7 to 34 wt.-% of iron, and from 0 to 9 wt.-% of cobalt, wherein the wt.-% proportions of the base binder alloy add up to 100 wt.-%.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: November 21, 2017
    Assignee: H. C. STARCK GMBH
    Inventor: Benno Gries
  • Patent number: 9783882
    Abstract: In various embodiments, a sputtering target initially formed by ingot metallurgy or powder metallurgy and rejuvenated by, e.g., cold spray, is utilized in sputtering processes to produce metallic thin films.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 10, 2017
    Assignees: H.C. Starck Inc., H.C. Starck GmbH
    Inventors: Steven A. Miller, Prabhat Kumar, Richard Wu, Shuwei Sun, Stefan Zimmermann, Olaf Schmidt-Park
  • Patent number: 9540715
    Abstract: A cermet powder includes a) from 50 to 90 wt-% of at least one hard material, and b) from 10 to 50 wt-% of a matrix metal composition. The wt.-% for a) and b) are based on a total weight of the cermet powder. The matrix metal composition comprises i) from 40 to 75 wt-% of iron and nickel, ii) from 18 to 35 wt-% of chromium, iii) from 3 to 20 wt.-% of molybdenum, and iv) from 0.5 to 4 wt-% of copper. The wt-% for i) to iv) are based in each case on a total weight of the matrix metal composition. A weight ratio of iron to nickel is from 3:1 to 1:3.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: January 10, 2017
    Assignee: H. C. STARCK GMBH
    Inventors: Stefan Zimmermann, Benno Gries
  • Patent number: 9543075
    Abstract: A valve metal powder having a particle shape factor mean value f, as determined by SEM image analysis, of 0.65?f?1, said powder has an average agglomerate particle size D50 value, as determined with a MasterSizer in accordance with ASTM B 822, of 40 to 200 ?m and wherein the valve metal powder is niobium.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: January 10, 2017
    Assignee: H.C. Starck GmbH
    Inventors: Josua Löffelholz, Jürgen Hilpert
  • Patent number: 9466433
    Abstract: A refractory metal compound agglomerate powder having a product of a BET surface area in m2/g and a sliding coefficient of ? of 0.33 to 0.95, wherein the refractory metal compound agglomerate powder is selected from niobium agglomerate powder, niobium suboxide agglomerate powder, and tantalum agglomerate powder.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: October 11, 2016
    Assignee: H.C. STARCK GMBH
    Inventors: Christoph Schnitter, Holger Brumm
  • Publication number: 20160243616
    Abstract: A sintered spray powder includes from 5 to 50 wt.-% of a metallic matrix, from 50 to 95 wt.-% of a hard material, and from 0 to 10 wt.-% of a wear-modifying oxide, each based on the total weight of the sintered spray powder. The metallic matrix comprises from 0 to 20 wt.-% of molybdenum based on the total weight of the metallic matrix. The hard material comprises at least 70 wt.-% of molybdenum carbide based on the total weight of the hard material. An average particle diameter of the molybdenum carbide in the sintered spray powder is <10 ?m, determined in accordance with ASTM E112.
    Type: Application
    Filed: October 1, 2014
    Publication date: August 25, 2016
    Applicant: H.C. STARCK GMBH
    Inventor: BENNO GRIES
  • Patent number: 9378894
    Abstract: A process for producing an anode for an electrolytic capacitor includes pressing a tantalum powder around a tantalum wire, a tantalum ribbon, or a tantalum sheet to form a pressed body. The pressed body is sintered to form a porous sintered body. The porous sintered body is cooled to form a cooled porous sintered body. The cooled porous sintered body is treated with at least one oxidant comprising at least one of a gaseous oxidant and a liquid oxidant to form a treated sintered body. The treated sintered body is anodically oxidized in an electrolyte to form a dielectric layer.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 28, 2016
    Assignee: H.C. STARCK GMBH
    Inventors: Helmut Haas, Marcel Hagymasi, Holger Brumm, Christoph Schnitter
  • Patent number: 9352977
    Abstract: The invention is directed to a process for preparing a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is Fe, Co, Zn, Cu or mixtures thereof, M2 is Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si or mixtures thereof, having the following steps: a) providing at least a first starting solution and a second starting solution, b) combining of at least the first starting solution and the second starting solution in a reactor and producing a homogeneously mixed reaction zone having a specific mechanical power input of at least 2 watt/liter and producing a product suspension containing insoluble product and a mother liquor which is supersaturated by setting of an excess of alkali and has a pH of 10-12, c) partial separating the mother liquor from the precipitated product to set solids contents of at least 150 g/l in the suspension.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: May 31, 2016
    Assignee: H.C. Starck GmbH
    Inventors: Matthias Jahn, Gerd Maikowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani
  • Patent number: 9309158
    Abstract: A process for producing a homogenous multi compound system which is hydroxide- and/or oxide-based includes a first alternative process comprising providing a first and a second refractory metal in respective hydrofluoric solutions, and mixing the first and second hydrofluoric solutions to provide a mixed hydrofluoric solution comprising a dissolved first and second refractory metal. A second alternative process comprises dissolving the first and the second refractory metal in an alternative mixed hydrofluoric solution. The mixed hydrofluoric solution or the alternative mixed hydrofluoric solution is precipitated with a precipitant to provide a solids mixture in a suspension. The first and second refractory metal is from the group consisting of Mo, W, Nb, Re, Zr, Hf, V, Sb, Si, Al, and Ta. The first and second refractory metal are different. At least one of the first and second refractory metal is provided as a fluoro and/or as an oxyfluoro complex.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 12, 2016
    Assignee: H.C. STARCK GMBH
    Inventors: Karsten Beck, Sven Albrecht, Christoph Schnitter, Timo Langetepe, Ralph Otterstedt
  • Patent number: 9085468
    Abstract: A niobium suboxide powder comprising niobium suboxide particles having a bulk nitrogen content of between 500 to 20,000 ppm. The nitrogen is distributed in the bulk of the powder particles. The nitrogen at least partly is present in the form of at least one of Nb2N crystals or niobium oxynitride crystals.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: July 21, 2015
    Assignee: H. C. STARCK GMBH
    Inventors: Christoph Schnitter, Holger Brumm, Christine Rawohl, Colin McCracken
  • Patent number: 9028710
    Abstract: The invention is directed to a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3?a?0.83, 0.1?b?0.5, 0.01?c?0.5, 0.01?x?0.99 and 1.01?y?1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm3·?m. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: May 12, 2015
    Assignee: H.C. Starck GmbH
    Inventors: Matthias Jahn, Gerd Maikowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani
  • Patent number: 9030799
    Abstract: Processes comprising: melting a mixture comprising a valve metal precursor and a diluting agent in at least one first vessel under a first set of temperature and residence time conditions; transferring the mixture to at least one second vessel; and initiating, in the at least one second vessel, a reaction of the valve metal precursor to form a valve metal under a second set of temperature and residence time conditions; valve metal powder prepared thereby and uses therefor.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 12, 2015
    Assignee: H.C. Starck GmbH
    Inventors: Josua Löffelholz, Jürgen Hilpert
  • Patent number: 8999500
    Abstract: The invention comprises semifinished products with a structured surface, the semifinished product comprising an oxidized and subsequently re-reduced surface containing at least one refractory metal, and also a process for their production and their use for producing high-capacitance components.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: April 7, 2015
    Assignee: H.C. Starck GmbH
    Inventors: Melanie Stenzel, Andreas Scharf, Helmut Haas, Holger Brumm, Timo Langetepe, Christoph Schnitter
  • Patent number: 8992635
    Abstract: A process for producing anodes includes providing a foil comprising tantalum or niobium. A surface of the foil is oxidized so as to form oxides on the foil surface. The foil is heated so that the oxides formed on the foil surface diffuse into the foil. A paste comprising a powder selected from the group consisting of a tantalum powder, a niobium powder, a niobium oxide powder and mixtures thereof is applied to the foil. The foil with the applied paste is sintered.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: March 31, 2015
    Assignee: H. C. Starck GmbH
    Inventor: Ralph Otterstedt
  • Patent number: 8995112
    Abstract: At least one of a valve metal sintered capacitor anode body and a suboxide valve metal sintered capacitor anode body with a particle density of >88% of a theoretical density.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 31, 2015
    Assignee: H. C. Starck GmbH
    Inventors: Christoph Schnitter, Holger Brumm
  • Patent number: 8951329
    Abstract: The invention relates to a process that involves (1) feeding (a) a first valve metal powder component containing valve metal particles and (b) reducing component into a reactor having a hot zone; and (2) subjecting the first valve metal powder component and the reducing component to non-static conditions sufficient to simultaneously (i) agglomerate the first valve metal powder component particles, and (ii) reduce oxygen content in the valve metal powder component particles, and thereby form a second valve metal powder component containing oxygen-reduced valve metal particles, in which the reducing component is selected from the group consisting of magnesium reducing components, calcium reducing components, aluminum reducing components, lithium reducing components, barium reducing components, strontium, reducing components, and combinations thereof.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: February 10, 2015
    Assignee: H.C. Starck GmbH
    Inventors: Leonid Lanin, Anastasia M. Conlon, Michael J. Albarelli