Patents Assigned to H. C. Starck GmbH
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Patent number: 9919358Abstract: 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: GrantFiled: October 1, 2014Date of Patent: March 20, 2018Assignee: H.C. STARCK GMBHInventor: Benno Gries
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Publication number: 20180029118Abstract: 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: ApplicationFiled: October 12, 2017Publication date: February 1, 2018Applicant: H.C. STARCK GMBHInventor: BENNO GRIES
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Patent number: 9879333Abstract: 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: GrantFiled: October 26, 2012Date of Patent: January 30, 2018Assignee: H. C. STARCK GMBHInventors: Christian Gerk, Markus Zumdick
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Patent number: 9856546Abstract: 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: GrantFiled: September 21, 2007Date of Patent: January 2, 2018Assignee: H. C. Starck GmbHInventors: Jürgen Fischer, Aloys Eiling, Frank Schrumpf, Stefan Zimmermann, Peter Thienel, Roland Scholl
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Patent number: 9821372Abstract: 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: GrantFiled: May 24, 2012Date of Patent: November 21, 2017Assignee: H. C. STARCK GMBHInventor: Benno Gries
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Patent number: 9783882Abstract: 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: GrantFiled: September 10, 2014Date of Patent: October 10, 2017Assignees: H.C. Starck Inc., H.C. Starck GmbHInventors: Steven A. Miller, Prabhat Kumar, Richard Wu, Shuwei Sun, Stefan Zimmermann, Olaf Schmidt-Park
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Patent number: 9540715Abstract: 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: GrantFiled: September 4, 2012Date of Patent: January 10, 2017Assignee: H. C. STARCK GMBHInventors: Stefan Zimmermann, Benno Gries
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Patent number: 9543075Abstract: 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: GrantFiled: April 3, 2014Date of Patent: January 10, 2017Assignee: H.C. Starck GmbHInventors: Josua Löffelholz, Jürgen Hilpert
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Patent number: 9466433Abstract: 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: GrantFiled: February 18, 2015Date of Patent: October 11, 2016Assignee: H.C. STARCK GMBHInventors: Christoph Schnitter, Holger Brumm
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Publication number: 20160243616Abstract: 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: ApplicationFiled: October 1, 2014Publication date: August 25, 2016Applicant: H.C. STARCK GMBHInventor: BENNO GRIES
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Patent number: 9378894Abstract: 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: GrantFiled: August 8, 2012Date of Patent: June 28, 2016Assignee: H.C. STARCK GMBHInventors: Helmut Haas, Marcel Hagymasi, Holger Brumm, Christoph Schnitter
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Powered compounds, method for the production thereof, and use thereof in lithium secondary batteries
Patent number: 9352977Abstract: 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: GrantFiled: April 7, 2015Date of Patent: May 31, 2016Assignee: H.C. Starck GmbHInventors: Matthias Jahn, Gerd Maikowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani -
Patent number: 9309158Abstract: 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: GrantFiled: February 3, 2012Date of Patent: April 12, 2016Assignee: H.C. STARCK GMBHInventors: Karsten Beck, Sven Albrecht, Christoph Schnitter, Timo Langetepe, Ralph Otterstedt
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Patent number: 9085468Abstract: 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: GrantFiled: May 9, 2012Date of Patent: July 21, 2015Assignee: H. C. STARCK GMBHInventors: Christoph Schnitter, Holger Brumm, Christine Rawohl, Colin McCracken
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Patent number: 9030799Abstract: 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: GrantFiled: October 13, 2010Date of Patent: May 12, 2015Assignee: H.C. Starck GmbHInventors: Josua Löffelholz, Jürgen Hilpert
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Patent number: 9028710Abstract: 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: GrantFiled: July 23, 2008Date of Patent: May 12, 2015Assignee: H.C. Starck GmbHInventors: Matthias Jahn, Gerd Maikowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani
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Patent number: 8999500Abstract: 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: GrantFiled: August 10, 2007Date of Patent: April 7, 2015Assignee: H.C. Starck GmbHInventors: Melanie Stenzel, Andreas Scharf, Helmut Haas, Holger Brumm, Timo Langetepe, Christoph Schnitter
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Patent number: 8992635Abstract: 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: GrantFiled: October 25, 2012Date of Patent: March 31, 2015Assignee: H. C. Starck GmbHInventor: Ralph Otterstedt
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Patent number: 8995112Abstract: 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: GrantFiled: August 25, 2009Date of Patent: March 31, 2015Assignee: H. C. Starck GmbHInventors: Christoph Schnitter, Holger Brumm
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Patent number: 8951329Abstract: 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: GrantFiled: June 21, 2005Date of Patent: February 10, 2015Assignee: H.C. Starck GmbHInventors: Leonid Lanin, Anastasia M. Conlon, Michael J. Albarelli