Patents Assigned to Evonik Degussa GmbH
  • METHOD FOR CUTTING OR PUNCHING CERAMIC-CONTAINING COMPOSITE MATERIALS
    Publication number: 20100024614
    Abstract: A method for cutting and/or punching material in which abrasive particles are present within and/or on the surface of a substrate is provided. The material cut or punched is useful as a ceramic separator for electrochemical applications including capacitors, supercapacitors, batteries, lithium ion batteries and lithium metal batteries.
    Type: Application
    Filed: July 22, 2009
    Publication date: February 4, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Friedemann REX, Matthias Pascaly, Martin Trocha, Christian Hying
  • METHOD OF COATING METAL STRIPS
    Publication number: 20100028697
    Abstract: The present invention relates to the use of branched, amorphous, polyester-based macropolyols for coating metal strips, to methods of coating metal strips and to the coated metal strips thus obtained. The coating comprises branched polyesters having trifunctional branching agent contents of between 10 and 25 mol %, based on the alcohol component, and the molecular weight of the polyester is between 2500 and 4500 g/mol.
    Type: Application
    Filed: September 13, 2007
    Publication date: February 4, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Rene Koschabek, Martin Bartmann, Thorsten Brand, Andreas Schubert
  • Process for the manufacture of hydrogen-rich cyclosiloxane
    Patent number: 7655206
    Abstract: The present invention relates to a for controlled synthesis of hydrogen-rich cyclosiloxanes of the (H2SiO)n type. where n is an integer equal to or greater than 3, by reacting: a.) a halosilane of the H2SiX2 type where X=halogen with b.) a lithium salt, copper(II) salt or a salt of a metal from main group 2 or transition group 2 of the periodic table of the elements, or a mixture of these salts. The ring size is advantageously adjustable to n=3, 4, 5, 6 (especially n=4 to 6), such that larger rings are not formed. In a particularly advantageous embodiment of the process, for the selective preparation of cyclohexasiloxane (H2SiO)6, after the reaction, the solvent is at least partly removed and then solvent is added again.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: February 2, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Gerrit Fester, Gerhard Roewer, Edwin Kroke
  • MICROORGANISM FOR PRODUCING RECOMBINANT PIG LIVER ESTERASE
    Publication number: 20100021964
    Abstract: The present invention relates to a microorganism which comprises at least one copy of a polynucleic acid sequence which is foreign to the host and which encodes a protein having an enzymic activity, and comprises a chaperone system which assists the expression of the protein in the form of an active enzyme, and to a method for producing a protein having esterase activity using such a microorganism.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Uwe Bornscheuer, Dominique Boettcher, Elke Bruesehaber, Kai Doderer
  • SURFACE-MODIFIED SILICAS
    Publication number: 20100022694
    Abstract: Surface-modified silicas Surface-modified, highly structured, potassium oxide-doped silicas, characterized by BET surface area, m2/g: 25-400 average primary particle size, nm: 5-50 pH: 3-10 carbon content, % by weight: 0.1-10 potassium oxide content, % by weight: 0.000001-40 are prepared by subjecting a potassium oxide-doped silica to surface modification. It can be used as a filler in silicone rubber compositions.
    Type: Application
    Filed: September 11, 2007
    Publication date: January 28, 2010
    Applicant: Evonik Degussa GMBH
    Inventors: Juergen Meyer, Mario Scholz, Kai Schumacher
  • CRYSTALLINE COPOLYESTERS HAVING HIGH SOLUBILITY IN NON-HALOGENATED SOLVENTS, AND THEIR USE
    Publication number: 20100016543
    Abstract: A description is given of the preparation of high molecular mass, crystalline copolyesters with high solubility in non-halogenated and non-aromatic solvents, and of their use in adhesives.
    Type: Application
    Filed: January 8, 2008
    Publication date: January 21, 2010
    Applicant: EVONIK DEGUSSA gmbH
    Inventors: Gabriele Brenner, Rene Koschabek, Georg Becker
  • POLYMERS
    Publication number: 20100016490
    Abstract: Polymers, such as silicone rubber, contain a pyrogenically produced titanium dioxide encapsulated with silicon dioxide, as filler, and a process for improving the stability of polymers with regard to the action of heat and flames.
    Type: Application
    Filed: January 25, 2008
    Publication date: January 21, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Mario Scholz, Kai Schumacher
  • SILANE-CONTAINING CORROSION PROTECTION COATINGS
    Publication number: 20100015339
    Abstract: A metal surface can be corrosion protected by coating a corrosion protection composition on the metal surface, thereby obtaining a coating; and curing said coating at a temperature of from 20 to 120° C., to obtain a cured coating; wherein said corrosion protection composition comprises a condensated and hydrolyzed oligomer and/or polymer of at least one functionalized silane.
    Type: Application
    Filed: February 23, 2009
    Publication date: January 21, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Ramon Sanchez MORILLO, Doris SIMOES
  • SILICA COATED ZINC OXIDE PARTICLES OBTAINABLE BY A FLAME PYROLYSIS PROCESS
    Publication number: 20100008872
    Abstract: Zinc silicon oxide particles with a core-shell structure which have a Zn/Si ratio of from 2 to 75, in atom %/atom %, whose fraction of Zn, Si and O is at least 99% by weight, based on the zinc silicon oxide particles, which have a BET surface area of from 10 to 60 m2/g, a weight-averaged primary particle diameter of from 10 to 75 nm an average aggregate area of less than 40 000 nm2 and an average aggregate diameter (ECD) of less than 200 nm, whose core is crystalline and consists of aggregated primary particles of zinc oxide and whose shell surrounds the aggregated zinc oxide primary particles and consists of one or more compounds containing the elements Si and O. Dispersion, coating composition and sunscreen formulation comprise the zinc silicon oxide particles.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 14, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Stipan Katusic, Sven Hill, Michael Kroell, Guido Zimmermann, Peter Kress
  • USE OF A SHAPED PART MADE OF A POLYAMIDE SHAPED COMPONENT AS AN INLINER FOR A COUNDUIT
    Publication number: 20100009106
    Abstract: A pipe or hose composed of a polyamide moulding composition whose molecular weight has been increased by condensation, via addition of a compound having at least two carbonate units in a quantitative proportion of from 0.005 to 10% by weight, based on polyamide, where a) a starting polyamide moulding composition was provided, b) a mixture of the starting polyamide moulding composition and of the compound having at least two carbonate units was produced, c) the premix was, if desired, stored and/or transported, and d) the premix was then processed to give the moulding, this step being the first in which the increase of molecular weight by condensation occurred, the moulding being a pipe or hose whose external diameter is at least 25 mm is used as inliner for a pipeline.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 14, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Andreas Dowe, Rainer Goering, Christian Baron
  • INORGANIC SEPARATOR-ELECTRODE-UNIT FOR LITHIUM-ION BATTERIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF IN LITHIUM BATTERIES
    Publication number: 20100000079
    Abstract: The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. The separator-electrode assemblies (SEAS) comprise a porous electrode useful as an electrode, ie. Positive (cathode) or negative (anode) electrode, in a lithium battery and a separator layer applied to this electrode. The separator electrode assembly (SEA) is characterized in that it has 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 an electrode whose active mass particles are bonded together and to the current collector by inorganic adhesive.
    Type: Application
    Filed: September 15, 2009
    Publication date: January 7, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
  • PROCESS FOR PREPARING METAL OXIDE POWDERS
    Publication number: 20100003179
    Abstract: Process for preparing a metal oxide powder, in which starting materials are evaporated and oxidized, wherein a metal melt in the form of droplets and one or more combustion gases are fed to the evaporation zone of a reactor, where the metal melt is evaporated completely under nonoxidizing conditions, subsequently, the mixture flowing out of the evaporation zone is reacted in the oxidation zone of this reactor with a stream of a supplied oxygen-containing gas whose oxygen content is at least sufficient to oxidize the metal and the combustion gases completely.
    Type: Application
    Filed: May 16, 2007
    Publication date: January 7, 2010
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Stipan Katusic, Guido Zimmermann, Michael Kraemer, Heiko Gottfried, Peter Kress
  • COMPOSITE PART CONSISTING OF A MULTI-LAYER FILM AND A SUBSTRATE BASED ON A POLYALKYL(METH)ACRYLATE
    Publication number: 20100003534
    Abstract: A composite part is composed of I. a multilayer film, which comprises the following layers: a) a layer composed of a polyamide moulding composition and b) following in the inwards direction, a layer composed of an adhesion promoter, which comprises from 5 to 100% by weight of a copolymer, which contains the following monomer units: from 70 to 99.9% by weight of monomer units which derive from vinyl compounds selected from acrylic acid derivatives, methacrylic acid derivatives, ?-olefins and vinylaromatics, and from 0.1 to 30% by weight of monomer units which contain a functional group selected from a carboxylic anhydride group, an epoxide group and an oxazoline group, and II. a substrate composed of a polyalkyl (meth)acrylate moulding composition.
    Type: Application
    Filed: August 22, 2007
    Publication date: January 7, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Kirsten Luetzeler, Klaus Huelsmann, Martin Wielpuetz, Frank Lorenz, Roland Wursche
  • COMPOSITE PART MADE OF A MULTI-LAYER FILM AND A SUBSTRATE BASED ON A POLYCARBONATE
    Publication number: 20100003524
    Abstract: A composite part is composed of I. a multilayer film, which comprises the following layers: a) a layer composed of a polyamide moulding composition and b) following in the inwards direction, a layer composed of an adhesion promoter, which comprises from 5 to 100% by weight of a copolymer, which contains the following monomer units: from 70 to 99.9% by weight of monomer units which derive from vinyl compounds selected from acrylic acid derivatives, methacrylic acid derivatives, ?-olefins and vinylaromatics, and from 0.1 to 30% by weight of monomer units which contain a functional group selected from a carboxylic anhydride group, an epoxide group and an oxazoline group, and II. a substrate composed of a polycarbonate moulding composition.
    Type: Application
    Filed: August 22, 2007
    Publication date: January 7, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Kirsten Luetzeler, Martin Wielpuetz, Frank Lorenz, Klaus Huelsmann, Roland Wursche
  • INORGANIC SEPARATOR-ELECTRODE-UNIT FOR LITHIUM-ION BATTERIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF IN LITHIUM BATTERIES
    Publication number: 20100003401
    Abstract: The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. The separator-electrode assemblies (SEAs) comprise a porous electrode useful as an electrode, ie. Positive (cathode) or negative (anode) electrode, in a lithium battery and a separator layer applied to this electrode. The separator electrode assembly (SEA) is characterized in that it has 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 an electrode whose active mass particles are bonded together and to the current collector by inorganic adhesive.
    Type: Application
    Filed: September 15, 2009
    Publication date: January 7, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin
  • Microbiological Production of 3-Hydroxypropionic Acid
    Publication number: 20090325248
    Abstract: The present invention relates to a cell which is genetically modified in relation to its wild type and which exhibits at least one of the properties a) or b): a) an increased activity by comparison with its wild type of an enzyme E1 which catalyzes the conversion of pyruvate into oxaloacetate, or of an enzyme E1b which catalyzes the conversion of phosphoenolpyruvate into oxaloacetate, b) an increased activity by comparison with its wild type of an enzyme E2 which catalyzes the conversion of aspartate into beta-alanine, where, besides properties a) or b), the cell is characterized by at least one of the properties c) or d) c) the genetically modified cell is able to export beta-alanine out of the cell, d) the genetically modified cell is able to convert beta-alanine into 3-hydroxypropionic acid.
    Type: Application
    Filed: October 9, 2006
    Publication date: December 31, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Achim Marx, Volker F. Wendisch, Doris Rittmann, Stefan Buchholz
  • Method for the production of sulpher-containing fine chemicals by fermentation
    Patent number: 7635580
    Abstract: The invention relates to methods for the production of sulfur-containing fine chemicals, in particular L-methionine, by fermentation using bacteria in which a nucleotide sequence encoding an S-adenosylmethionine synthase (metK) gene is expressed.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 22, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Hartwig Schröder, Burkhard Kröger, Oskar Zelder, Corinna Klopprogge, Stefan Häfner
  • PROCESS FOR PREPARING L-AMINO ACIDS
    Publication number: 20090311758
    Abstract: A process for preparing L-amino acids employing coryneform bacteria in which the AmtR regulator has been attenuated is provided. Recombinant bacteria, polynucleotides and vectors corresponding to or having the attenuated AmtR regulator are disclosed.
    Type: Application
    Filed: May 19, 2009
    Publication date: December 17, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Nadja Jessberger, Andreas Burkovski, Brigitte Bathe, Alexander Reth
  • FUMED SILICA FOR USE AS AUXILIARY IN PHARMACEUTICAL AND COSMETIC COMPOSITIONS
    Publication number: 20090311159
    Abstract: Fumed silica for use as auxiliary substance in pharmaceutical and cosmetic compositions, which has—a BET surface area of 90 to 400 m2/g—a content of As, Cd, Cr, Pb, Sb and Se of less than 1 ppm for each elements and less than 5 ppm of Hg, all elements determined by Inductively Coupled Plasma—Atomic Emission Spectroscopy (ICP-AES) or Atomic Absorption Spectroscopy (AAS).
    Type: Application
    Filed: July 4, 2007
    Publication date: December 17, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventor: Ann Gray
  • Rubber Mixtures
    Publication number: 20090312476
    Abstract: The invention relates to rubber mixtures, comprising: (A) at least one rubber, (B) at least one oxidic filler and (C) at least one (haloorganyl)alkylpolyethersilane of the general formula (X)(X?)(X?)Si—R1—Hal. The rubber mixtures can be used for production of mouldings.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 17, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Dirk Laur, Ingo Kiefer, Oliver Klockmann, Philipp Albert, Manuel Friedel