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| Number | Title | Issue Date |
| 8168155 | Method for production of ammonium paratungstate tetrahydrate and highly pure ammonium paratungstate tetrahydrate 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 yie... | 05/01/2012 |
| 7973180 | Process for producing aqueous dispersion of composite of poly(3,4-dialkoxythiophene) with polyanion The present invention provides a method for the production of an aqueous dispersion containing an electroconductive polymer component which enables electroconductive thin films which are outstanding in their transparency and electroconductivity to be formed, togethe... | 07/05/2011 |
| 7810587 | Drill bits comprising dual-phase tungsten carbide material The invention relates to a drill bit containing tungsten carbide powder having powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide. ... | 10/12/2010 |
| 7799184 | Process for the electrochemical decomposition of powders and electrolysis cells suitable therefor Process for the electrochemical decomposition of precursors in powder form by introducing a powder batch between two electrodes of an electrolysis cell, electrodes being designed to be liquid-permeable, and the electrolyte flowing through the powder batch perpendicu... | 09/21/2010 |
| 7635396 | Process for separating zirconium and hafnium The present invention provides a new process for separating zirconium and hafnium compounds, in particular to remove traces of zirconium compounds from hafnium compounds, using fractional crystallisation, as well as hafnium compounds obtainable in accordance with th... | 12/22/2009 |
| 7541090 | Dual-phase hard material comprising tungsten carbide, process for the production thereof and its use The invention relates to tungsten carbide powder consisting of powder particles, which have a core comprised of tungsten cast carbide and a covering comprised of tungsten monocarbide, to the production thereof by heating a tungsten cast carbide powder in the presenc... | 06/02/2009 |
| 7485257 | Valve metal powders A valve metal powder by is prepared by a particular set of sequential steps that involves the use of precursor having preformed morphology. The method by which the valve metal is prepared includes a stabilization step that results in the valve metal powder having se... | 02/03/2009 |
| 7442407 | Tantalum and niobium compounds and their use for chemical vapour deposition (CVD) Tantalum and niobium compounds having the general formula (I) and their use for the chemical vapour deposition process are described: wherein M stands for Nb or Ta, R1 and R2 ... | 10/28/2008 |
| 7419926 | Sintered bodies based on niobium suboxide Disclosed are sintered bodies that include: (a) 30 to 100 mol % of NbOx, wherein 0.5 | 09/02/2008 |
| 7411779 | Electrolytic capacitors with a polymeric outer layer and process for the production thereof The invention relates to a process for the production of electrolytic capacitors with low equivalent series resistance and low residual current consisting of a solid electrolyte made of conductive polymers and an outer layer containing conductive polymers, to electr... | 08/12/2008 |
| 7410609 | Process for producing capacitors The invention relates to a process for producing capacitors based on niobium suboxide, and having an insulator layer of niobium pentoxide. Also described is a powder mixture suitable for production of capacitors. Pressed bodies produced from the powder mixture, and ... | 08/12/2008 |
| 7381396 | Niobium suboxide powder A niobium suboxide powder comprising 100 to 600 ppm of magnesium is described. The niobium suboxide powder may (alternatively or in addition to 100 to 600 ppm of magnesium) further include 50 to 400 ppm of molybdenum and/or tungsten. The niobium suboxide powder is s... | 06/03/2008 |
| 7377947 | Electrolyte capacitors having a polymeric outer layer and process for their production The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, and which comprise a solid electrolyte of conductive polymers and an outer layer comprising conductive polymers applie... | 05/27/2008 |
| 7358326 | Multifunctional 3,4-alkylenedioxythiophene derivatives and electrically conductive polymers containing them Multifunctional 3,4-alkylenedioxythiophene derivatives represented by formula (I) are described, In formula (I), n and m each independently of each other, and independently for each o, are an integer from 1 to 5, and o is 3... | 04/15/2008 |
| 7341801 | Polythiophenes having alkyleneoxythia thiophene units in electrolyte capacitors Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and/or repeating units of the following general formula (II), | 03/11/2008 |
| 7341705 | Process for producing niobium suboxide A method is described for preparing a niobium suboxide represented by the formula, NbOx, in which 0.7 | 03/11/2008 |
| 7297309 | Process for producing silicatic moldings The invention relates to a process for producing a molding, characterized in that a silicatic solid is mixed with a solution comprising a first silicatic binder and the mixture is then press-molded, and the compression molding is then post-treated with a solution co... | 11/20/2007 |
| 7288663 | Process for preparing linear organic oligomers The present invention relates to a process for preparing compounds of the formula (I), where n is an integer from 2 to 5, R1 is H or a C1-C20-alkyl group... | 10/30/2007 |
| 7144493 | Process for the electrochemical decomposition of powders and electrolysis cells suitable therefor Process for the electrochemical decomposition of precursors in powder form by introducing a powder batch between two electrodes of an electrolysis cell, electrodes being designed to be liquid-permeable, and the electrolyte flowing through the powder batch perpendicu... | 12/05/2006 |
