Abstract: The present invention relates to a stabilised monomer composition comprising at least 50 wt.-%, based on the total weight of the stabilised monomer composition, of a thiophene derivative monomer having the general formula (I) in which R1 and R2 stand, independently of one another, for hydrogen, for an optionally substituted C1-C20-alkyl group or C1-C20-oxyalkyl group, optionally interrupted by 1 to 5 oxygen atoms and/or sulfur atoms, or jointly for an optionally substituted C1-C20-dioxyalkylene group or C6-C20-dioxyarylene group, and 0.001 to 10 wt.-%, based on the total weight of the stabilised monomer composition, of a stabiliser. The present invention also relates to a method for the manufacture of a capacitor, a capacitor obtained by this method, the use of a stabilised monomer composition and to the use of a stabiliser.
Type:
Application
Filed:
September 30, 2010
Publication date:
May 5, 2011
Applicant:
H.C. Starck Clevios GmbH
Inventors:
Knud Reuter, Klaus Wussow, Udo Merker, Andreas Elschner
Abstract: A process for digesting molybdenum oxide concentrates includes suspending a molybdenum-containing starting material in an aqueous solution so as to obtain a suspension. While stirring, an oxidizing agent and an alkali solution of at least one alkali metal are metered to the suspension so as to set a pH and produce a product having a molybdenum content of at least 98% of the molybdenum-containing starting material. The alkali metal is selected from the group consisting of Na, K and Li.
Abstract: Processes comprising: (a) providing a substrate; and (b) forming a conductive structured polymer layer on a surface of the substrate, wherein forming the conductive structured polymer layer comprises applying at least one conductive polymer comprising a polycation and at least one polyanion having a mean molecular weight Mw of 1,000 to 100,000 g/mol using a lift-off process; and structured conductive layers prepared thereby.
Type:
Application
Filed:
November 3, 2008
Publication date:
March 31, 2011
Applicant:
H.C. Starck Clevios GmbH
Inventors:
Andreas Elschner, Wilfried Loevenich, Kerstin Pollock
Abstract: A tantalum or tantalum alloy which contains pure or substantially pure tantalum and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a tantalum alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the tantalum alloy.
Abstract: The invention is directed to a method for the production of ammonium paratungstate tetrahydrate by thermal treatment of ammonium paratungstate decahydrate in an aqueous suspension. The ammonium paratungstate tetrahydrate can be produced with high purity and high yield. The production method may furthermore be carried out in a simple and energy-efficient manner.
Type:
Application
Filed:
November 12, 2010
Publication date:
March 24, 2011
Applicant:
H.C. Starck GmbH
Inventors:
Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Michael Lohse, Wolfgang Mathy
Abstract: In various embodiments, large-area sputtering targets are formed by providing a plurality of sputtering targets each comprising a backing plate and a refractory metal layer disposed thereon, and spray depositing a refractory metal powder on an interface between the sputtering targets, the refractory metal powder consisting essentially of the same metal as each refractory metal layer, thereby joining the refractory metal layers of the sputtering targets.
Type:
Grant
Filed:
November 5, 2007
Date of Patent:
March 22, 2011
Assignees:
H.C. Starck GmbH, H.C. Starck, Inc.
Inventors:
Stefan Zimmermann, Steve A. Miller, Prabhat Kumar, Mark Gaydos
Abstract: The present invention relates to a novel process for preparing an aqueous or nonaqueous dispersion or solution comprising at least one conductive polymer and at least one polyanion, characterized in that the polymerization is performed with ultrasound irradiation, to aqueous or nonaqueous dispersions prepared by this process and to the use thereof.
Abstract: A niobium or niobium alloy which contains pure or substantially pure niobium and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a niobium alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the niobium alloy.
Abstract: The present invention relates to novel processes for preparing an aqueous or nonaqueous dispersion or solution comprising at least one conductive polymer and at least one polyanion, characterized in that the polymerization is performed at a pressure below atmospheric pressure, to aqueous or nonaqueous dispersions or solutions prepared by this process and to the use thereof.
Type:
Application
Filed:
August 27, 2008
Publication date:
February 3, 2011
Applicant:
H.C. STARCK CLEVIOS GMBH
Inventors:
Wilfried Loevenich, Rudolf Hill, Andreas Elschner, Friedrich Jonas, Udo Guntermann
Abstract: Electrolyte for an electrolyte-supported high-temperature fuel cell includes zirconium(IV) oxide doped with from 3.5 mol % to 6.5 mol % of ytterbium(III) oxide. The electrolyte has a thermal expansion coefficient (TEC) based on 30° C. of from 10.6*10?6 K?1 to 11.1*10?6 K?1 at 800° C.
Type:
Application
Filed:
January 20, 2009
Publication date:
February 3, 2011
Applicant:
H.C. STARCK GMBH
Inventors:
Ralph Otterstedt, Joerg Laube, Marianne Gottschling, Michael Svec
Abstract: The invention relates to a method for producing electrolytic capacitors with low equivalent series resistance and low residual current, consisting of a solid electrolyte and an intermediate layer and an outer layer comprising conductive polymers, to electrolytic capacitors produced using this method and also to the use of electrolytic capacitors of this type.
Abstract: A niobium or niobium alloy which contains pure or substantially pure niobium and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a niobium alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the niobium alloy.
Abstract: The present invention relates to particles with core-shell structure comprising an acid-functionalized core based on an inorganic material and a shell comprising at least one conductive polythiophene, to dispersions comprising such particles and to the preparation and use thereof.
Type:
Application
Filed:
August 28, 2008
Publication date:
December 16, 2010
Applicant:
H.C. Starck Clevios GmbH
Inventors:
Lothar Puppe, Wilfried Loevenich, Andreas Elschner, Stephan Kirchmeyer
Abstract: The present invention is directed to a composition consisting essentially of: a) from about 60 to about 99 mole % of SnO2, and b) from about 1 to about 40 mole % of one or more materials selected from the group consisting of i) Nb2O5, ii) NbO, iii) NbO2, iv) WO2, v) a material selected consisting of a) a mixture of MoO2 and Mo and b) Mo, vi) W, vii) Ta2O5, and viii) mixtures thereof, wherein the mole % s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
Abstract: Powdery compounds of the formulation NiaMbOx(OH)y, a procedure to produce the same, and the use of the same as active material for nickel metal hydride batteries and/or as precursor for the production of lithium compounds for use in secondary lithium batteries.
Abstract: The invention relates to a process for coating layers comprising nonpolar polyaromatics with conductive polymers, and to polymeric layers produced by this process.
Type:
Application
Filed:
October 20, 2008
Publication date:
December 2, 2010
Applicant:
H.C. Starck Clevios GmbH
Inventors:
Timo Meyer-Friedrichsen, Udo Guntermann
Abstract: Molybdenum titanium sputter targets are provided. In one aspect, the targets are substantially free of the ?(Ti, Mo) alloy phase. In another aspect, the targets are substantially comprised of single phase ?(Ti, Mo) alloy. In both aspects, particulate emission during sputtering is reduced. Methods of preparing the targets, methods of bonding targets together to produce large area sputter targets, and films produced by the targets, are also provided.
Type:
Grant
Filed:
October 20, 2005
Date of Patent:
November 23, 2010
Assignee:
H.C. Starck Inc.
Inventors:
Mark Gaydos, Prabhat Kumar, Steven A. Miller, Norman C. Mills, Gary Rozak, Rong-Chein Richard Wu
Abstract: Disclosed herein are capacitors having an anode based on niobium and a barrier layer based on niobium pentoxide, at least the barrier layer having a content of vanadium and process for their preparation and use.
Type:
Grant
Filed:
October 30, 2008
Date of Patent:
November 16, 2010
Assignee:
H.C. Starck GmbH
Inventors:
Karlheinz Reichert, Christoph Schnitter
Abstract: A tool for friction stir welding or forming is provided. The tool comprises a shoulder portion (40b) and optionally a pin portion (5Ob)l the shoulder portion (40b) comprised of at least 60% by weight and up to 100% by weight of tungsten, molybdenum, tantalum, niobium or hafnium, the balance being alloying materials, if used. The tool has at least one surface treatment or coating. Articles welded by the tools are also provided.
Type:
Application
Filed:
August 15, 2007
Publication date:
November 4, 2010
Applicant:
H.C. Starck Ltd.
Inventors:
Charles E.D. Rowe, Jonathan R. Tuck, David George Staines, Wayne Morris Thomas
Abstract: Process for the production of valve metal powders, in particular niobium and tantalum powder, by reduction of corresponding valve metal oxide powders by means of vaporous reducing metals and/or hydrides thereof, preferably in the presence of an inert carrier gas, wherein the reduction is performed at a vapor partial pressure of the reducing metal/metal hydride of 5 to 110 hPa and an overall pressure of less than 1000 hPa, and tantalum powder obtainable in this way having a high stability of the powder agglomerate particles.
Type:
Grant
Filed:
April 9, 2005
Date of Patent:
November 2, 2010
Assignees:
H. C. Starck GmbH, H.C. Starck Ltd.
Inventors:
Helmut Haas, Ulrich Bartmann, Tadashi Komeya, Nobuyuki Sato