Abstract: The invention relates to a process for preparing compounds of the general formula (I) to novel compounds of this substance class and also to their use as important precursors or for preparing important precursors for ?-conjugated polymers.
Abstract: Process for preparing specific oxidants which in mixtures with precursors for preparing conductive polymers display a long processing time during the polymerization; oxidants obtainable by this process; mixtures comprising such specific (retarding) oxidants and the use of said oxidants for preparing solid electrolyte capacitors and conductive layers.
Type:
Application
Filed:
March 20, 2004
Publication date:
August 17, 2006
Applicant:
H.C. Starck GmbH
Inventors:
Udo Merker, Stephan Kirchmeyer, Klaus Wussow
Abstract: A process for producing dielectric layers with low dielectric constants by thermal treatment of a sol-gel product of a multifunctional carbosilane, corresponding layers, and their use in the production of electronic components, are described.
Type:
Grant
Filed:
December 13, 2002
Date of Patent:
August 15, 2006
Assignee:
H.C. Starck GmbH
Inventors:
Stephan Kirchmeyer, Detlef Gaiser, Harald Kraus, Udo Merker
Abstract: Process for the production of shaped articles of niobium or tantalum by electrochemical etching of a niobium or tantalum sheet covered by a structured photoresist mask in an aqueous solution containing hydrofluoric acid, the etching being effected under electrochemical conditions under which strong noise is superposed on the etching current and the etching solution contains a water-soluble polymer.
Abstract: The invention relates to compounds having a core-shell structure, to a process for preparing them and to their use as semiconductors in electronic components.
Abstract: Process for producing a valve metal powder by producing a precursor of desired morphology, converting the precursor into an oxide of the valve metal, stabilizing the structure of the oxide by heat treatment and reducing the stabilized oxide while retaining the morphology. Valve metal powders obtainable in this way, in particular comprising spherical agglomerates with a mean agglomerate size of 10–80 ?m, preferably 20–40 ?m, and use of these valve metal powders to produce solid electrolyte capacitors.
Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
Type:
Grant
Filed:
June 6, 2001
Date of Patent:
May 23, 2006
Assignee:
H.C. Starck GmbH
Inventors:
Armin Olbrich, Astrid Görge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann
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:
June 8, 2001
Date of Patent:
January 31, 2006
Assignee:
H. C. Starck GmbH
Inventors:
Karlheinz Reichert, Christoph Schnitter
Abstract: The method for producing an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion comprises: a process of polymerizing 3,4-dialkoxythiophene in the presence of a polyanion by using an oxidizing agent in an aqueous solvent, in which polystyrene-sulfonic acid having a specific molecular weight and a sulfonation degree or polystyrenesulfonic acid having another specific sulfonation degree is used as the polyanion, or in which pH of the reaction mixture during the reaction is set to a specific value.
Abstract: The invention relates to compounds containing optionally substituted 3,4-methylenedioxythiophene units (thieno[3,4-d]-1,3-dioxole units), the production thereof and their use as organic semi-conductors.
Type:
Application
Filed:
May 3, 2005
Publication date:
January 19, 2006
Applicant:
H. C. Starck GmbH
Inventors:
Lutz Brassat, Stephan Kirchmeyer, Knud Reuter
Abstract: Electrolytic capacitors having low equivalent series resistance and low leakage current are described. The electrolytic capacitors include a solid electrolyte layer of a conductive material in particular a conductive polymer, and an outer layer that includes binders, polymeric anions and conductive polymers (e.g., polythiophenes). Also described is a method of preparing electrolytic capacitors that involves forming the conductive polymer of the solid electrolyte layer in situ by means of chemical oxidative polymerization or electrochemical polymerization. Electronic circuits that include the electrolytic capacitors are also described.
Type:
Grant
Filed:
October 13, 2004
Date of Patent:
January 17, 2006
Assignee:
H.C. Starck GmbH
Inventors:
Udo Merker, Klaus Wussow, Friedrich Jonas
Abstract: Process for the production of electrolytic capacitors with low equivalent series resistance and low residual current, comprised of a solid electrolyte formed from conducting polymers and an outer layer containing conducting polymers and a binder, electrolytic capacitors produced by the process and their use.
Abstract: A mixed metal hydroxide with brucite structure is described, which contains nickel hydroxide as its main component and at least one trivalent metal selected from the group consisting of Co, Fe, Al, Ga, In, Sc, Y and La in an amount of from about 12 to about 30 atom % relative to the sum of the metal components including Ni. The invention also relates to a rechargeable battery containing a mixed metal hydroxide according to the invention as an electrochemically active material as well as a secondary batter containing the mixed metal hydroxide. The invention also relates to a process for producing a mixed metal hydroxide having a brucite structure.
Abstract: Macromolecular compounds having a core-shell structure are described. Also described is a process for preparing such macromolecular compounds, and their use as semiconductors in electronic structural elements.
Type:
Application
Filed:
March 24, 2005
Publication date:
September 29, 2005
Applicant:
H. C. STARCK GMBH
Inventors:
Stephan Kirchmeyer, Sergei Ponomarenko, Aziz Muzafarov
Abstract: The invention relates to compositions which include: (a) a polythiophene containing repeating units represented by the following general formula (I), wherein X represents, for example, —CH2—CH(CH2—O—(CH2)4SO3?H+)—; and (b) further polymers, that are different than polythiophene (a), and which contain SO3? M+ or COO?M+ groups. Also disclosed are electroluminescing (EL) arrangements that contain hole-injecting layers which include such compositions.
Type:
Application
Filed:
February 9, 2005
Publication date:
September 15, 2005
Applicant:
H.C. Starck GmbH
Inventors:
Andreas Elschner, Knud Reuter, Peter Lovenich
Abstract: A process for elution of rhenium adsorbed on strongly basic ion-exchange resins by means of highly concentrated aqueous hydrochloric acid solution is described, in which the ion-exchange resin is treated with aqueous solution containing an oxidizing agent.
Type:
Grant
Filed:
November 6, 2002
Date of Patent:
August 30, 2005
Assignee:
H. C. Starck GmbH
Inventors:
Juliane Meese-Marktscheffel, Viktor Stoller, Armin Olbrich, Wolfgang Mathy, Michael Erb
Abstract: Disclosed are compositions/formulations that include: polythiophenes (A) containing recurring units represented by the following general formula (I), in which is, for example, —CH2—CH2—; and two additional polymers (B) and (C), each having SO3?M+ or COO?M+ functional groups. Also disclosed are electroluminescent arrangements having hole-injecting layers containing the disclosed compositions.
Type:
Application
Filed:
January 27, 2005
Publication date:
August 11, 2005
Applicant:
H.C. Starck GmbH
Inventors:
Andreas Elschner, Friedrich Jonas, Knud Reuter, Peter Lovenich
Abstract: The invention relates to novel 3,4-alkylenedioxythiophene dimers and trimers, to their preparation and to their use as precursors for conductive polymers.
Type:
Grant
Filed:
June 25, 2003
Date of Patent:
May 10, 2005
Assignee:
H. C. Starck GmbH
Inventors:
Knud Reuter, Valery A. Nikanorov, Vassily M. Bazhenov
Abstract: A process is described for the preparation of powder mixtures or composite powders from at least one first type of powder from the group consisting of high-melting metals, hard materials and ceramic powders and at least one second type of powder from the group consisting of binder metals, binder-metal mixed crystals and binder-metal alloys, where the second type of powder is formed from precursor compounds in the form of water-soluble salts in an aqueous suspension of the first type of powder by precipitation as oxalate, removal of the mother liquor and reduction to the metal.
Type:
Grant
Filed:
December 11, 2000
Date of Patent:
May 3, 2005
Assignee:
H.C. Starck GmbH
Inventors:
Bernd Mende, Gerhard Gille, Ines Lamprecht