Patents Assigned to Evonik Degussa
  • Patent number: 8091672
    Abstract: An electrically driven single-drive-axis vehicle with a platform for a driver, driven about a common wheel axis, which provides the single-drive-axis to improve its handling and its range of uses. The vehicle includes at least one attachment, the attachment being connected to the single-axle vehicle pivotably about at least one first attachment axis.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: January 10, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Gutsch, Michael Schulze, Holger Bramsiepe
  • Patent number: 8093438
    Abstract: A process of producing a 1,1-diaryl alkane comprising a condensation reaction of an aromatic compound having at least one aromatic hydrogen with an acetal, in the presence of a perfluorinated sulfonic acid in polymeric form as catalyst.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: January 10, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Jeffrey Howard Dimmit, Mike Douglas Cagle
  • Publication number: 20120000541
    Abstract: A metal conduit pipe, which is covered with an extruded layer made of polyamide moulding compound, is used to produce a duct laid in water, wherein in the course of laying the duct, the coating is exposed to a shearing pressure load and/or a bending load due to laying method selected.
    Type: Application
    Filed: January 20, 2010
    Publication date: January 5, 2012
    Applicants: SALZGITTER MANNESMANN LINE PIPE GMBH, EVONIK DEGUSSA GmbH
    Inventors: Andreas Dowe, Rainer Goering, Hans-Juergen Kocks, Joern Winkels
  • Publication number: 20120003891
    Abstract: The invention relates to prepregs and composite components produced therefrom (mouldings), obtainable by the use of powdery reactive polyurethane compositions.
    Type: Application
    Filed: January 13, 2010
    Publication date: January 5, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Friedrich Georg Schmidt, Emmanouil Spyrou, Werner Grenda, Sebastian De Nardo, Sibylle Planitz-Penno
  • Publication number: 20120003890
    Abstract: The invention relates to prepregs and composite components (moulding) produced therefrom at a low temperature, obtainable by using powdery highly reactive polyurethane compositions containing uretdione groups, with specific catalysts.
    Type: Application
    Filed: February 5, 2010
    Publication date: January 5, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Friedrich Georg Schmidt, Emmanouil Spyrou, Werner Grenda, Sebastian De Nardo, Sibylle Planitz-Penno
  • Patent number: 8087450
    Abstract: Investment casting shells are manufactured by incorporating fumed metal oxide dispersions, or doped fumed metal oxides as a binder into the casting shell. The investment casting shells containing the fumed metal oxides have improved characteristics, such as increased strength and a reduced surface roughness.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: January 3, 2012
    Assignee: Evonik Degussa Corporation
    Inventors: Shawn Nycz, Robert Johnson, Fred Klaessig
  • Publication number: 20110315982
    Abstract: The present invention relates to a process for producing semiconductive indium oxide layers, in which a substrate is coated with a liquid, anhydrous composition comprising a) at least one indium alkoxide and b) at least one solvent, optionally dried and thermally treated at temperatures greater than 250° C., to the layers producible by this process, and to the use thereof.
    Type: Application
    Filed: February 5, 2010
    Publication date: December 29, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Arne Hoppe, Alexey Merkulov, Juergen Steiger, Duy Vu Pham, Yvonne Damaschek, Heiko Thiem
  • Publication number: 20110315912
    Abstract: A thermal insulation material comprising a precipitated silica having a modified tapped density of less than or equal to 70 g/l.
    Type: Application
    Filed: January 21, 2010
    Publication date: December 29, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Frank Menzel, Karl Meier, Christian Panz
  • Publication number: 20110308423
    Abstract: The present invention relates to a fluorine-free composition for hydrophobizing porous mineral substrates and for producing a water repellent effect on the surface of the substrate, the composition being based on at least one hydrophobizing active substance and at least one hydrophobic metal oxide. The invention furthermore relates to a process for the preparation of such a composition and the use of this composition.
    Type: Application
    Filed: January 11, 2010
    Publication date: December 22, 2011
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Manuel Friedel, Spomenko Ljesic
  • Publication number: 20110309313
    Abstract: The present invention relates to a liquid indium alkoxide-containing composition comprising at least one indium alkoxide and at least three solvents L1, L2 and L3, in which the solvent L1 is selected from the group consisting of ethyl lactate, anisole, tetrahydrofurfuryl alcohol, butyl acetate, ethylene glycol diacetate and ethyl benzoate, and the difference between the boiling points of the two solvents L2 and L3 under SATP conditions is at least 30° C., to processes for preparation thereof and to the use thereof.
    Type: Application
    Filed: February 5, 2010
    Publication date: December 22, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Juergen Steiger, Heiko Thiem, Alexey Merkulov, Duy Vu Pham, Yvonne Damaschek, Arne Hoppe
  • Patent number: 8080395
    Abstract: An isolated mutant of coryneform bacteria comprising a gene encodes a polypeptide having 2-methylcitrate dehydratase activity, where the polypeptide comprises an amino acid sequence in which one of the proteinogenic amino acids except L-proline is present at position 272 or a corresponding or comparable position. In addition, an isolated polynucleotide encoding a polypeptide having 2-methylcitrate dehydratase enzymic activity, which comprises at position 272 of the amino acid sequence or a corresponding or comparable position a proteinogenic amino acid except L-proline is described. A method for producing a recombinant coryneform bacterium and L-amino acids. A recombinant microorganism, L-Lysine-containing feed additive, and L-Tryptophan-containing feed additive is also described.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 20, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Brigitte Bathe, Caroline Kreutzer, Georg Thierbach
  • Publication number: 20110302849
    Abstract: The present invention relates to suspensions which have a very low salt content and contain at least one precipitated silica, a process for producing them and also their use.
    Type: Application
    Filed: March 11, 2010
    Publication date: December 15, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Patrik Stenner, Florian Zschunke, Juergen Behnisch, Markus Ruf, Manfred Dannehl, Silke Suhr
  • Publication number: 20110305850
    Abstract: The invention describes a novel production process for coated particles composed of granulated-rubber material, the coating, the particles coated therewith and the uses of the coated particles. The coating formulation is solvent-free.
    Type: Application
    Filed: December 29, 2009
    Publication date: December 15, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Andreas Berlineanu, Kirsten Luce, Margit Bukohl, Nicole Dudek, Siegfried Jittenmeier, Marisa Cruz, Rainer Fuchs, Frank Dieter Kuhn
  • Patent number: 8075862
    Abstract: The present invention relates to a hydrophobic, fumed silica which is obtained by milling a fumed silica which has fixed dimethylsilyl and/or monomethylsilyl groups on the surface due to silanization; and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: December 13, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Juergen Meyer, Horst Zeizinger, Mario Scholz, Uwe Ellenbrand
  • Publication number: 20110301345
    Abstract: The present invention relates to the production and the use of 1:1 adducts having a low monomer content from hydroxyalkyl(meth)acrylates and diisocyanates.
    Type: Application
    Filed: February 8, 2010
    Publication date: December 8, 2011
    Applicant: Evonik Degussa GmbH
    Inventors: Emmanouil Spyrou, Stephan Kohlstruk, Lars Hellkuhl, Heinz Grosse-Beck, Marita Druener
  • Publication number: 20110300322
    Abstract: The invention relates to a novel halogen-free and acid-free, readily soluble adhesion promoter for polyolefins, said promoter containing (meth)acrylate-grafted, amorphous polyolefins.
    Type: Application
    Filed: February 26, 2010
    Publication date: December 8, 2011
    Applicants: EVONIK DEGUSSA GmbH, EVONIK RÖHM GmbH
    Inventors: Stephan Kohlstruk, Lutz Mindach, Stefanie Maus, Hinnerk Gordon Becker, Sven Balk
  • Patent number: 8071070
    Abstract: Provided is a crystalline TiO2 powder in the form of aggregated primary particles having a variable sintering stability at a BET surface area of 70-100 m2/g and a rutile content of greater than 10% but less than or equal to 40%, and a process for preparing the crystalline TiO2 powder, which involves: introducing a TiCl4 vapor and, separately therefrom, H2 and a primary air into a mixing chamber to produce a gaseous mixture; igniting the gaseous mixture in a burner to produce a flame, which is burned into a reaction chamber to produce the crystalline TiO2 powder and gaseous substances; and separating the crystalline TiO2 powder from the gaseous substances, wherein the relative amounts of TiCl4 vapor, H2 and primary air are selected to provide crystalline TiO2 powder having the aforementioned BET surface area and rutile content, with the proviso that factor A has a value of 0.1-0.4 g/m2 in accordance within the following formula: factor A=105{[(TiCl4 vapor×H2)/(amount of air×gaseous mixture)]/BET]}.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: December 6, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Schulze-Isfort, Kai Schumacher, Nina Schuhardt, Oswin Klotz, Rainer Golchert
  • Patent number: 8071215
    Abstract: Hydrophobic pyrogenic silica doped with potassium by means of aerosol is prepared by reacting a pyrogenic silica doped with potassium by means of aerosol with a surface-modifying agent. It can be used as a filler in silicone rubber.
    Type: Grant
    Filed: October 29, 2005
    Date of Patent: December 6, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Jürgen Meyer, Mario Scholz
  • Patent number: 8069687
    Abstract: A working medium for refrigeration processes comprising at least one sorbent material and at least one refrigerant, characterized in that the sorbent material contains at least one nonvolatile organic salt which is liquid under standard conditions, or a mixture of organic salts, with the proviso that this is liquid under standard conditions, wherein the salt or the mixture has a thermal stability above 150° C.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 6, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Carsten Jork, Matthias Seiler, Bernd Weyershausen
  • Publication number: 20110295006
    Abstract: Feed additives containing essential amino acids which are diketopiperazines of formulas (IV) or (V) or salts thereof are provided: In formulas (IV) and (V), R1 and R2 may be an amino acid residue such as methionine, lysine, threonine, tryptophan, histidine, valine, leucine, isoleucine, phenylalanine, arginine, and cysteine, and may optionally be the same residue. Additionally provided are the diketopiperazines of formulas (IV) and (V) and a method to for their production.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Christoph KOBLER, Thomas HAEUSSNER, Christoph WECKBECKER