Patents Assigned to Evonik Degussa GmbH
  • PROCESS FOR MEASURING THE UNIFORM FILLING OF REACTORS WITH SOLID BODIES
    Publication number: 20090308138
    Abstract: The invention relates to a process for measuring the uniform filling of reactors or columns with solid bodies and to an apparatus for performing the process.
    Type: Application
    Filed: January 11, 2007
    Publication date: December 17, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Achim Fischer, Werner Burkhardt, Jan-Olaf Barth, Christoph Weckbecker
  • DEICING AGENT AND/OR ANTI-ICING AGENT
    Publication number: 20090309061
    Abstract: The invention relates to a deicing or anti-icing agent containing, based in each case on its total weight, from 35.0% by weight to 95.0% by weight of at least one glycol, from 0.001% by weight to 5.0% by weight of at least one dendritic polymer and from 0.01% by weight to 5.0% by weight of at least one further thickener and optionally water. It furthermore relates to the use of from 0.001 to 5.0% by weight of at least one dendritic polymer and from 0.01% by weight to 5.0% by weight of at least one further thickener for thickening a composition which contains from 35.0% by weight to 95.0% by weight of at least one glycol and optionally water.
    Type: Application
    Filed: July 6, 2007
    Publication date: December 17, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Matthias Seiler, Stefan Bernhardt
  • LITHIUM BATTERY SEPARATOR HAVING A SHUTDOWN FUNCTION
    Publication number: 20090311418
    Abstract: Electrical separators for batteries, especially lithium batteries, having a shutdown mechanism. A process for their production. An electrical separator is used in batteries and other systems in which electrodes have to be separated from each other while maintaining ion conductivity. Safety is very important in lithium batteries, since in contrast to other types of battery (Pb, NiCd, NiMeH) the solvent for the electrolyte is not water but a combustible solvent. A separator for lithium cells must possess a shutdown mechanism while not being able to melt down. This is achieved by an electrical separator having a shutdown layer which comprises particles which melt at a desired temperature, close the pores of the separator, and so stop ion flow. Since the separator also comprises a porous inorganic (ceramic) layer on a carrier, the cells cannot melt down as a result of a completely melted separator.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Volker HENNIGE, Christian HYING, Gerhard HÖRPEL
  • PROCESS FOR PREPARING TRIALLYL ISOCYANURATE (TAIC)
    Publication number: 20090312545
    Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at least 90° C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160° C. and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 17, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Peter Werle, Hans-Peter Krimmer, Manfred Schmidt, Klaus Stadtmueller, Martin Trageser
  • INDUCTION-ASSISTED PRODUCTION METHOD
    Publication number: 20090311506
    Abstract: In a production method for producing molded articles from fiber composites, superparamatic particles are selected which become coupled to an external alternating magnetic field. These superparamagnatic particles are added to a resin portion of a strip-shaped starting material further comprising reinforcing fibers. The strip-shaped starting material is then continuously advanced, and, while being advanced, heated by coupling-in an external alternating magnetic field to which the superparamagnatic particles in the resin portion become coupled. Next, the heated starting material is continuously molded into a molded article; and the resin portion in the molded particle is cured.
    Type: Application
    Filed: August 21, 2009
    Publication date: December 17, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Lars HERBECK, Thorsten MAHRHOLZ, Tobias STROEHLEIN, Juergen MOSCH, Michael FRAUENHOFER, Stefan BOEHM, Klaus DILGER, Harald HAEGER, Christian BARON, Markus PRIDOEHL
  • Coupled cofactor-dependent enzymatic reaction systems in aqueous media
    Patent number: 7632665
    Abstract: The present application relates to a reaction system in which chemically valuable compounds can be obtained in high enantiomer concentrations with the aid of a coupled enzymatically operating transformation process. The coupled enzymatic reaction system comprises a cofactor-dependent enzymatic transformation of an organic compound and an enzymatic regeneration of the cofactor, wherein the reaction system operates in aqueous solution with an amount of substrate above the solubility limit thereof. In the preferred embodiments, an alcohol dehydrogenase is the cofactor-dependent enzyme, and the regeneration of the cofactor (e.g. NADH or NADPH) is acheved by means of formate dehydrogenase.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: December 15, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Gröger, Claudia Rollmann, Hendrik Hüsken, Helge Werner, Francoise Chamouleau, Chad Hagedorn, Karlheinz Drauz, Werner Hummel
  • PROCESS FOR PREPARING AMIDES FROM KETOXIMES
    Publication number: 20090306367
    Abstract: The present invention is directed to a process for preparing amides. In particular, the process is directed to a process performable on the industrial scale, in which a ketoxime can be converted to a cyclic or acyclic amide by means of a Beckmann rearrangement using 2,4,6-trichloro-1,3,5-triazine as a catalyst in a nonpolar organic solvent.
    Type: Application
    Filed: April 3, 2007
    Publication date: December 10, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Martin Roos, Stephanie Schauhoff, Martin Trageser, Hans-Peter Krimmer
  • USE OF PYROGENIC METAL OXIDE FOR THE MANUFACTURE OF A SELFCOMPACTING COMPOSITION COMPRISING HYDRAULIC BINDERS
    Publication number: 20090301350
    Abstract: Use of pyrogenic metal oxide for the manufacture of a selfcompacting composition comprising hydraulic binders and having high early strength, the composition comprising at least one hydraulic binder and water as further constituents and the product of the BET surface area, in m2/g, of the pyrogenic metal oxide and the proportion by weight of the pyrogenic metal oxide based on the hydraulic binder being 20 to 200 m2/100 g of hydraulic binder.
    Type: Application
    Filed: March 12, 2007
    Publication date: December 10, 2009
    Applicant: Evonik Degussa Gmbh
    Inventors: Christoph Tontrup, Reinhard Trettin, Michael Geyer
  • CATALYST FOR THE SYNTHESIS OF ALKYL MERCAPTAN AND PROCESS FOR THE PRODUCTION THEREOF
    Publication number: 20090306432
    Abstract: The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.
    Type: Application
    Filed: August 14, 2009
    Publication date: December 10, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: HUBERT REDLINGSHÖFER, CHRISTOPH WECKBECKER, ANDREAS DÖRFLEIN, MICHAEL RÜCKRIEGEL
  • Ink Jet Ink
    Publication number: 20090305011
    Abstract: Ink jet inks comprising a modified pigment, wherein the modified pigment is a pigment having attached organic groups of substituted or unsubstituted 1,2-benzenedicarboxylic acids and/or salts thereof.
    Type: Application
    Filed: May 30, 2009
    Publication date: December 10, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Ralph McIntosh, Gerd Tauber, Werner Kalbitz, Stephan Lüdtke, Jutta Zimmermann, Alfons Karl, Frank Forster
  • SURFACE-MODIFIED, STRUCTURALLY MODIFIED FUMED SILICAS
    Publication number: 20090292097
    Abstract: Surface-modified, structurally modified fumed silicas Surface-modified, structurally modified fumed silicas are surface-modified with N-containing silicon compounds. They are used as fillers in resins and adhesives.
    Type: Application
    Filed: September 11, 2007
    Publication date: November 26, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Mario Scholz, Juergen Meyer
  • POLYARYLENE ETHER KETONE MOULDING COMPOSITION HAVING GOOD NOTCHED IMPACT RESISTANCE
    Publication number: 20090292073
    Abstract: A moulding composition with high notched impact resistance contains the following components: a) from 75 to 99.9 parts by weight of polyarylene ether ketone, and b) from 0.1 to 25 parts by weight of polyalkenylene having from 5 to 12 carbon atoms in the repeat unit, the total of these parts by weight being 100.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 26, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Alexander Richter, Hans-Guenter Lohkaemper
  • METHOD FOR PRODUCING DIENES BY HYDRODIMERIZATION
    Publication number: 20090287032
    Abstract: The invention relates to a process for preparing substituted or unsubstituted 1,7-diolefins by hydrodimerizing non-cyclic olefins having at least two conjugated double bonds in the presence of a reducing agent and of a catalyst, wherein the catalyst used is a metal-carbene complex.
    Type: Application
    Filed: June 6, 2007
    Publication date: November 19, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Volker Brehme, Manfred Neumann, Frank Bauer, Elke Fiebig-Bauer, Franz Rudolf Bauer, Johanna Elisabeth Bauer, Dirk Roettger
  • MULTIPLE LAYER FILM AND COMPOSITE MATERIAL PRODUCED THEREFROM
    Publication number: 20090286096
    Abstract: A film comprising the following layers: I. a layer based on a polyamide whose monomer units contain an average of at least 8 carbon atoms, II. an immediately adjacent layer composed of a moulding composition comprising a polyamide as in I. and a copolymer having functional groups is used for the production of a composite with a substrate which comprises PA6, PA66, PA6/66 or PPA, giving secure adhesion.
    Type: Application
    Filed: January 15, 2008
    Publication date: November 19, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Kirsten Alting, Roland Wursche, Harald Haeger, Martin Wielpuetz
  • Alginate gel scaffold having a plurality of continuous parallel microtubular copper capillaries
    Patent number: 7618798
    Abstract: The invention relates to mutants and alleles of the coryneform bacterium mqo gene which encodes malate quinone oxidoreductases which contain any amino acid apart from L-serine at position 111, or a comparable position, in the amino acid sequence, and to processes for fermentatively preparing amino acids, preferably L-lysine, L-tryptophan and L-proline, using bacteria which comprise these alleles.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: November 17, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Brigitte Bathe, Stephan Hans, Natalie Schischka, Georg Thierbach
  • PYROGENIC TITANIUM DIOXIDE COMPRESSED TO SLUGS
    Publication number: 20090280309
    Abstract: Pyrogenic titanium dioxide is compressed to slugs by preliminarily deaerating it, compressing it to slugs, and crushing the slugs and optionally classifying them. The slugs are characterized by a tamped density (to DIN EN ISO 787-11) of 500 to 1200 g/l.
    Type: Application
    Filed: August 9, 2007
    Publication date: November 12, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Ralph Hofmann, Guenter Stein, Frank Menzel
  • Highly filled dispersion containing transition aluminium oxide
    Patent number: 7615577
    Abstract: Aqueous dispersion containing transition aluminium oxide as only solid and a dispersant, in which—the transition aluminium oxide is present in the form of aggregates of primary particles, the content of transition aluminium oxide in the dispersion is from 40 to 65% by weight, the aggregates in the dispersion have a mean aggregate diameter of less than 100 nm,—the dispersant contains polyaluminium hydroxychloride, polyaluminium hydroxynitrate and/or polyaluminium hydroxysulphate, the dispersion has a pH of from 3 to 5.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: November 10, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Wolfgang Lortz, Heinz Lach, Joachim Von Seyerl
  • Process for Recovering Molybdate or Tungstate from Aqueous Solutions
    Publication number: 20090274598
    Abstract: Process for recovering molybdate or tungstate from an aqueous solution, in which molybdate or tungstate is bound to a water-insoluble, cationized inorganic carrier material from the aqueous solution at a pH in the range from 2 to 6, the laden carrier material is separated off and the bound molybdate or tungstate is liberated once again into aqueous solution at a pH in the range from 6 to 14. The process is suitable for recovering molybdate or tungstate in the delignification of pulp with hydrogen peroxide in the presence of molybdate or tungstate as catalyst. The recovered molybdate or tungstate can be recycled to the delignification.
    Type: Application
    Filed: April 28, 2009
    Publication date: November 5, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Thomas Dietz, Hans Ulrich Suss
  • Halophospholanes and their preparation
    Patent number: 7612240
    Abstract: The present invention is directed to a process for preparing compounds of the general formula (I). Compounds of the general formula (I) are advantageous precursors for preparing phospholane catalysts, especially bisphospholane catalysts. The invention therefore likewise provides for the use of the substances in question for preparing these catalysts.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: November 3, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Armin Börner, Jens Holz, Juan Almena, Renat Kadyrov, Axel Monsees, Thomas Riermeier
  • HYPER-BRANCHED POLYURETHANES METHOD FOR PRODUCTION AND USE THEREOF
    Publication number: 20090270582
    Abstract: A hyperbranched polyurethane which is obtainable by reacting a diisocyante or polyisocyanate with a triol of the formula (1) where R and R? each independently of one another are hydrogen or an alkyl group having 1 to 4 carbon atoms and where n is an integer greater than 2 and which has a numerical average of at least 4 repeating units of the formula (2) per molecule.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 29, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Matthias Seiler, Stefan Bernhardt, Markus Schwarz, Friedrich Georg Schmidt, Werner Freitag