Patents Assigned to Evonik Degussa
  • Reaction vessel and process for its use
    Patent number: 7833508
    Abstract: The invention relates to a reaction vessel in which hydrogen sulphide is prepared from sulphur and hydrogen, wherein the reaction vessel consists partly or entirely of a material which is resistant to the reaction mixture, its compounds or elements and retains its resistance even at high temperatures.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: November 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hubert Redlingshöfer, Jan-Olaf Barth, Caspar-Heinrich Finkeldei, Hans Joachim Hasselbach, Stephan Kretz, Harald Heinzel, Christoph Weckbecker
  • Stable solutions of N-substituted aminopolysiloxanes, their preparation and use
    Patent number: 7834073
    Abstract: Stable low chloride solutions of hydrosalts of an organic acid with a N-substituted aminopolysiloxane in the form of a T structural unit contain at least one lower alcohol, and at least one stabilizer. Methods to prepare the stable low-chloride solutions are also provided.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: November 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Burkhard Standke, Peter Jenkner
  • Process for the manufacture of methylmercaptan
    Patent number: 7833929
    Abstract: The present invention refers to a continuous process for the manufacture of methyl mercaptan using Mo—O—K-based catalysts. It is further described that the total selectivity of methylmercaptan can be increased by at least 1% by lowering the total gas hourly space velocity. The invention further refers to a process for the preparation of a solid, preformed catalyst system.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: November 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Yiquan Yang, Qi Wang, Renchun Lin, Hongbin Zhang, Youzhu Yuan, Weiping Fang, Quanxing Zheng, Shenjun Dai, Xingguo Yan, Aiping Chen, Jan-Olaf Barth, Christoph Weckbecker, Klaus Huthmacher, Hubert Redlingshöfer, Sabine Ackermann
  • Unsymmetrically substituted phospholane catalysts
    Patent number: 7834215
    Abstract: The present invention is based on new ligand systems of the general formula (I). These ligand systems can be used advantageously in transition metal-catalyzed asymmetric syntheses. Likewise encompassed are the transition metal complexes thus prepared, a process for preparing the ligands and the use of the complexes in asymmetric synthesis.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: November 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Jens Holz, Armin Boerner, Odalys Esperanza Zayas Vargas, Juan Jose Almena Perea, Axel Monsees, Renat Kadyrov, Thomas Riermeier
  • Compositions for producing universal pigment preparations
    Patent number: 7834098
    Abstract: The invention relates to new compositions having good binder, wetting, and dispersing properties for virtually foam-free aqueous and also solventborne and solvent-free pigment preparations.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Wenning, Dietmar Loest
  • SILICA AND ALSO EPOXY RESINS
    Publication number: 20100286311
    Abstract: Fumed silicon dioxide powder in the form of aggregated primary particles having a BET surface area of 175±15 m2/g and a thickening effect, based on the BET surface area, of greater than 18 mPas g/m2 is hydrophobicized with polydimethylsiloxane. This hydrophobic fumed silica has a BET surface area of 110±25 m2/g. It can be used in epoxy resins. These epoxy resins in turn can be used as adhesives.
    Type: Application
    Filed: February 10, 2009
    Publication date: November 11, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Juergen Meyer, Mario Scholz, Pia Buckel, Andreas Hille
  • SUPPORTED MO-O-K-MExOy CATALYST FOR THE SYNTHESIS OF METHANETHIOL FROM HIGH H2S-CONTAINING SYNGAS
    Publication number: 20100286448
    Abstract: This invention is related to a preparation method of a supported catalyst Mo—O—K-MexOy for the synthesis of methanethiol from H2S-containing syngas. The catalyst comprises of an active component of Mo—O—K-based species, an active promoter and a support denoted as metal (or metals)-carrier. The support is prepared by electroless plating method in such a way that the metal or metals chosen are plated onto the surface of the carrier. Transition metal, especially Fe, Co or Ni are selected to be the plating metal, while SiO2, Al2O3 or TiO2 are selected to be carrier. The catalyst thus prepared is found to be efficient for the synthesis of methanethiol from H2S-containing syngasor carbon oxides/hydrogen mixtures, especially regarding a minor formation of the by-product CO2.
    Type: Application
    Filed: November 28, 2008
    Publication date: November 11, 2010
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Yiquan Yang, Yingjuan Hao, Aiping Chen, Qi Wang, Lingmei Yang, Qiaoling Li, Shenjun Dai, Weiping Fang, Jan-Olaf Barth, Christoph Wecbecker, Klaus Hutmacher
  • USE OF POLYOLEFINS HAVING ISOTACTIC STRUCTURAL ELEMENTS IN FLOORING MATERIALS
    Publication number: 20100285246
    Abstract: The present invention relates to the use of polyolefins having isotactic structural elements in floor coverings, in particular in carpets or artificial lawns.
    Type: Application
    Filed: January 22, 2009
    Publication date: November 11, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon Becker, Marlies Vey, Lutz Mindach
  • AMORPHOUS SUBMICRON PARTICLES
    Publication number: 20100285317
    Abstract: A process for milling amorphous solids using a milling apparatus can result in particles having a median particle diameter d50 of <1.5 ?m. The process includes: operating a mill in a milling phase with an operating medium selected from the group consisting of gas, vapour, steam, a gas containing steam and mixtures thereof, and heating a milling chamber in a heat-up phase before the actual operation with the operating medium in such a way that a temperature in the milling chamber, the mill exit or both, is higher than a dew point of the operating medium.
    Type: Application
    Filed: July 21, 2010
    Publication date: November 11, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Karl Meier, Ulrich Brinkmann, Christian Panz, Doris Misselich, Christian Goetz
  • Inorganic separator-electrode-unit for lithium-ion batteries, method for the production thereof and use thereof in lithium batteries
    Patent number: 7829242
    Abstract: Separator-electrode assemblies (SEAs) comprising a porous electrode useful as a positive or negative electrode in a lithium battery and a separator layer applied to this electrode, the separator layer being an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and the electrode having active mass particles that are bonded together and to a current collector by an inorganic adhesive; and a process for their production.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: November 9, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
  • USE OF POLYOLEFINS HAVING ATACTIC STRUCTURAL ELEMENTS IN FLOOR COVERINGS
    Publication number: 20100279033
    Abstract: The present invention relates to the use of polyolefins having atactic structural elements in floor coverings, in particular in carpets or artificial lawns.
    Type: Application
    Filed: January 22, 2009
    Publication date: November 4, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon Becker, Marlies Vey, Lutz Mindach
  • FOOD SUPPLEMENT CONTAINING ALPHA-KETO ACIDS FOR SUPPORTING DIABETES THERAPY
    Publication number: 20100280123
    Abstract: Food supplement containing alpha-keto acids for supporting diabetes therapy. The present invention relates to a formulation which is used as food supplement and contains alpha-keto acids for supporting therapy in diabetes mellitus type II (DM).
    Type: Application
    Filed: April 1, 2010
    Publication date: November 4, 2010
    Applicant: Evonik Degussa GmbH
    Inventors: Andreas KARAU, Henrike Gebhardt, Norbert Windhab, Matthias Kottenhahn, Yuefei Liu, Jürgen M. Steinacker
  • METHOD FOR REDUCING THE CONTENT IN ELEMENTS, SUCH AS BORON, IN HALOSILANES AND INSTALLATION FOR CARRYING OUT SAID METHOD
    Publication number: 20100278706
    Abstract: The invention relates to a method for reducing the content in elements of the third main group of the periodic system, especially in boron- and/or aluminum-containing compounds of technically pure halosilanes for producing purified halosilanes, especially high-purity chlorosilanes. The invention further relates to an installation for carrying out said method.
    Type: Application
    Filed: November 20, 2008
    Publication date: November 4, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Ekkehard Mueh, Hartwig Rauleder, Reinhold Schork
  • SEPARATOR WITH IMPROVED EASE OF HANDLING
    Publication number: 20100279173
    Abstract: Robust separator, which has on a substrate and in the intermediate spaces of the substrate, which comprises fibres of an electrically nonconducting material, an electrically nonconductive coating of oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide, selected from Al2O3, ZrO2 and SiO2, wherein polymer particles are also present in the ceramic coating in addition to the oxide particles of Al2O3, ZrO2 and/or SiO2. These separators are particularly easy to handle, since they are mechanically very stable.
    Type: Application
    Filed: June 6, 2006
    Publication date: November 4, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christian Hying, Volker Hennige, Gerhard Hoerpel
  • Silicon dioxide dispersion
    Patent number: 7824643
    Abstract: Stable, aqueous dispersion containing silicon dioxide powder having a hydroxyl group density of 2.5 to 4.7 OH/nm2, which is obtained from a silicon dioxide powder produced by a flame hydrolysis process under acid conditions. The dispersion is produced by incorporating the silicon dioxide powder into an aqueous solution by means of a dispersing device. The dispersion can be used to produce glass articles.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: November 2, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Kai Schumacher, Monika Oswald
  • Preparation of enantiomerically enriched amines and amides by enzymatic resolution using a sulfonylacetic acid ester as acyl donor
    Patent number: 7824899
    Abstract: A process for the preparation of an enantiomerically enriched amine, is performed by a) cleaving a racemic mixture of a reaction product of i) a chiral amine and ii) an acyl donor, in the presence of a hydrolase, to obtain a mixture of an enantiomerically enriched amide and an enantiomerically enriched amine; or b) reacting an amine with an acyl donor, in the presence of a hydrolase, to obtain a mixture of an enantiomerically enriched amide and an enantiomerically enriched amine; and c) separating the enantiomerically enriched amide from the enantiomerically enriched amine, wherein the acyl donor is a sulphonylacetic acid ester. The process (1) leads to high enantioselectivities, and (2) high reactivities, (3) is based on an acyl donor accessible in a simple manner, (4) is suitable for a large number of very different substrates and/or (5) is suitable for carrying out at high substrate concentrations.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 2, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Groeger, Oliver May, Kai Rossen, Karlheinz Drauz
  • LARGE CONTAINER FOR HANDLING AND TRANSPORTING HIGH-PURITY AND ULTRA HIGH PURITY CHEMICALS
    Publication number: 20100270296
    Abstract: The invention relates to an empty container (1) for receiving air- and/or moisture-sensitive compounds, comprising a connecting unit (2) and an inner volume of at least 300 liters and adapters for connecting the empty container, and to the use thereof.
    Type: Application
    Filed: August 22, 2008
    Publication date: October 28, 2010
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Hartwig Rauleder, Ekkehard Mueh, Rainer Nicolai, Harald Klein, Reinhold Schork
  • REMOVAL OF POLAR ORGANIC COMPOUNDS AND EXTRANEOUS METALS FROM ORGANOSILANES
    Publication number: 20100274028
    Abstract: The invention relates to a process for treating a composition comprising organosilanes and at least one polar organic compound and/or at least one extraneous metal and/or a compound containing extraneous metal, wherein the composition is contacted with at least one adsorbent and a composition in which the content of the organic polar compound and/or of the extraneous metal and/or of the compound containing extraneous metal is reduced is subsequently obtained, and also to a corresponding composition in which the content of polar organic compounds and/or extraneous metals has been reduced to traces, and to the use of organic resins, activated carbons, silicates and/or zeolites for reducing the amounts of the compounds mentioned.
    Type: Application
    Filed: August 19, 2008
    Publication date: October 28, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Ekkehard Mueh, Hartwig Rauleder, Helmut Mack, Jaroslaw Monkiewicz
  • MIX AND REFRACTORY PRODUCT HAVING A HIGH HYDRATION RESISTANCE PRODUCED THEREFROM
    Publication number: 20100273636
    Abstract: Mix which comprises a) one or more very finely divided silicon dioxide powders having an average particle diameter of from 2 to 100 nm and a BET surface area of at least 30 m2/g, b) one or more particulate components selected from the group consisting of oxides, carbides and nitrides, in each case having an average particle diameter of from >0.5 ?m to 30 mm, c) one or more synthetic resins as binders and d) one or more metallic antioxidants having an average particle diameter of from >0.5 to 250 ?m. Process for producing a shaped body, in which to the mix is introduced into a mould, pressed if appropriate and heated to a temperature at which the synthetic resin crosslinks thermally. Shaped body which can be obtained therefrom. Process for producing a refractory shaped body, in which the shaped body is carbonized. Refractory shaped body which can be obtained therefrom.
    Type: Application
    Filed: December 10, 2008
    Publication date: October 28, 2010
    Applicants: EVONIK DEGUSSA GMBH, TECH UNIV BER FREI- INST FUER KER, GLAS-UND BAUS
    Inventors: Christos G. Aneziris, Uwe Klippel, Christoph Tontrup
  • Method for Producing Encapsulated Sodium Percarbonate Particles
    Publication number: 20100266763
    Abstract: In a process for producing coated sodium percarbonate particles by spray application of a sodium sulfate-containing aqueous solution onto sodium percarbonate particles in a fluidized bed and simultaneous evaporation of water, sodium sulfate and sodium percarbonate-containing dust is used to prepare the sodium sulfate-containing aqueous solution.
    Type: Application
    Filed: November 20, 2008
    Publication date: October 21, 2010
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Stefan Leininger, Michael Scheibe, Harald Jakob