Patents Assigned to Evonik Degussa
  • Patent number: 8138365
    Abstract: The invention relates to a method for producing organosilanes of general formula I, [R(R)(R?O)Si—R?—]2Sm??I by reaction of (halo-organo)alkoxysilanes of formula II, [R(R)(R?O)Si—R?-Hal??II with a sulfuring reagent, selected from alkaline hydrogensulfide, alkaline sulfide Me2S, alkaline polysulfide Me2Sg and any combination thereof and optionally additionally with sulfur and/or with H2S in a solvent, the alkaline hydroxy content of all materials used being <0.44 wt. %.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: March 20, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Philipp Albert, Susann Witzsche, Ingo Kiefer, Jörg Kiefer, Stefan Lotter, Jaroslaw Monkiewicz, Jörg Schmidt
  • Patent number: 8137794
    Abstract: Transparent, electrically conductive layer, a process for producing the layer and its use, wherein the layer is based on at least one compound of the formula 1 wherein the substituents are as defined.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 20, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Luethge, Rita Fuegemann, Martina Inhester, Matthias Driess, Yilmaz Aksu
  • Publication number: 20120064345
    Abstract: The present invention relates to a process for the preparation of an aerogel in the form of spherules or beads and the use thereof for thermal or sound insulation.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 15, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventor: Lucia Gini
  • Publication number: 20120065428
    Abstract: The present invention refers to a method for the preparation of 2-keto carboxylic acid having the general formula R1—CO—COOH, wherein R1 is a branched alkyl group having 3 to 7 carbon atoms, or a salt thereof, comprising a fermentation step wherein a microorganism is grown in a culture medium in order to provide a culture broth containing 2-keto carboxylic acid or a salt thereof.
    Type: Application
    Filed: May 10, 2010
    Publication date: March 15, 2012
    Applicant: Evonik Degussa GmbH
    Inventors: Andreas Karau, Nicolas Morin, Robert Gerstmeir
  • Publication number: 20120065302
    Abstract: A composite of a lignocellulosic material and a plastic is obtained by grafting an organosilane to the plastic, to obtain a grafted plastic; and compounding the grafted plastic with the lignocellulosic material, to obtain the composite.
    Type: Application
    Filed: July 29, 2009
    Publication date: March 15, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Kerstin Weissenbach, Aristidis Ioannidis, Doris E. Simoes
  • Publication number: 20120065424
    Abstract: A low-catalyst-content isocyanate mixture containing at least one of a carbodiimide group and a uretonimine groups, obtained by: reacting at least one monomeric diisocyanate (A) in the presence of phosphorus-containing catalyst (B), to obtain a reaction mixture comprising carbodiimide, where the reaction does not take place to complete conversion of the diisocyanate (A) and 1-80% by weight of the diisocyanate (A) employed remains in the reaction mixture as excess diisocyanate; and subsequently simultaneously removing, by distillation, a fraction of the excess of diisocyanate and the catalyst (B), to obtain the isocyanate mixture and a distillate, where the isocyanate mixture has a monomeric diisocyanate (A) content of 0.5%-20% by weight, based on the monomeric diisocyanate (A) employed, and a catalyst (B) content of 0% to 20% by weight, based on the catalyst (B) employed. In addition, a process for preparing a low-catalyst-content isocyanate mixture.
    Type: Application
    Filed: April 21, 2010
    Publication date: March 15, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Emmanouil Spyrou, Evelyn Albrecht, Annegret Lilienthal, Iris Brueckner, Andrea Voecker
  • Patent number: 8133714
    Abstract: The invention relates to a recombinant coryneform bacterium which secretes an organic chemical compound and in which the sugR gene which codes for a polypeptide having the activity of an SugR regulator has been attenuated. The invention further relates to a processes for using this bacterium for the fermentative preparation of organic chemical compounds.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: March 13, 2012
    Assignees: Evonik Degussa GmbH, Forschungszentrum Jülich GmbH
    Inventors: Brigitte Bathe, Bastian Blombach, Bernhard Eikmanns, Verena Engels, Georg Thierbach, Volker Wendisch
  • Patent number: 8133561
    Abstract: A multilayer composite which comprises the following layers: I. an interior layer I selected from among a fluoropolymer molding composition and a polyolefin molding composition; II.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: March 13, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Guido Schmitz, Harald Haeger, Hans Ries
  • Patent number: 8129314
    Abstract: Absorbates having a high loading of particular substances for use in plant protection compositions, the use of a special process for the preparation of the absorbates and products for plant protection comprising the absorbates.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: March 6, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Heindl, Claus-Peter Drexel
  • Patent number: 8129556
    Abstract: The invention relates to a process for preparing organosilanes of the general formula I by reacting (haloorganyl)alkoxysilane of the formula II with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: March 6, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Ingo Kiefer, Alfred Alig, Ulrich Deschler, Helmut Droege, Sefan Koenigstein, Stephanie Schwan
  • Patent number: 8128804
    Abstract: An olefinically unsaturated monomer is stabilized by a retarder-containing composition which comprises a solvent and a quinone methide as a retarder.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: March 6, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Weyler, Phillip James, Oliver Erpeldinger, Manfred Neumann, Frank Kraushaar
  • Patent number: 8124279
    Abstract: The invention relates to an electrode material for a lithium ion battery which is distinguished by the fact that the electrode material comprises 5-85% by weight of nanoscale silicon particles which have a BET surface area of from 5 to 700 m2/g and a mean primary particle diameter of from 5 to 200 nm, 0-10% by weight of conductive carbon black, 5-80% by weight of graphite having a mean particle diameter of from 1 ?m to 100 ?m and 5-25% by weight of a binder, the proportions of the components summing to not more than 100% by weight, and to the use of the electrode material according to the invention for the production of lithium ion batteries, and to a lithium ion battery having a negative electrode which comprises the electrode material according to the invention.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 28, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Frank-Martin Petrat, Volker Hennige, Evelyn Albrecht, David Lee, Hilmi Buqa, Michael Holzapfel, Petr Novak
  • Patent number: 8123394
    Abstract: A mixer having a mixing pipe (1), a rotatable mixing unit (3) having back-mixing action, and a supply of the liquid colorant (4, 5) through the wall of the mixing pipe in the area of the mixing unit allows uniform mixing of liquid colorants of differing viscosities even with fixed-cycle supply of the liquid colorants. Mixing liquid colorants using this mixer allows direct dosing of the mixed liquid colorant into a plastic processing machine in the event of volumetric dosing of the employed liquid colorants.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: February 28, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Simon Becht, Andreas Kluge, Maurice Weelen, Martin Welp
  • Publication number: 20120042951
    Abstract: The present invention relates to a method for decreasing or increasing the band gap shift in the production of photovoltaic devices by means of coating a substrate with a formulation containing a silicon compound, e.g., in the production of a solar cell comprising a step in which a substrate is coated with a liquid-silane formulation, the invention being characterized in that the formulation also contains at least one germanium compound. The invention further relates to the method for producing such a photovoltaic device.
    Type: Application
    Filed: April 28, 2010
    Publication date: February 23, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Bernhard Stuetzel, Wolfgang Fahrner
  • Publication number: 20120045539
    Abstract: Active compound formulations for animal nutrition of amino acids, vitamins, enzymes and pigments, which are suitable for providing the active compounds in protected form for the nutrition of stock animals, in particular ruminants, and a process for the preparation of these protected active compound formulations.
    Type: Application
    Filed: November 4, 2011
    Publication date: February 23, 2012
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Hans Albrecht Hasseberg, Winfried Heimbeck, Dieter Greissinger, Wolfgang Mõese, Wolfgang Polzer, Nongyuan Shi, Martin Koerfer
  • Patent number: 8119715
    Abstract: A pulverulent composition that is a powder containing at least one polymer, and at least one flame retardant that contains ammonium polyphosphate, the powder having a maximum particle size of ?150 ?m and a median particle size of from 20 to 100 ?m.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: February 21, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Sylvia Monsheimer, Maik Grebe, Franz-Erich Baumann
  • Patent number: 8119730
    Abstract: A formulation containing: (i) at least one organoalkoxysilane and/or at least one organoalkoxysiloxane; (ii) at least one inorganic oxidic powder; and (iii), optionally, an organic or inorganic acid is provided. The formulation contains from 5 to 50% of the inorganic oxide powder and has a viscosity of less than 1500 mPa·s. A weight ratio of the organoalkoxysilane and/or at least one organoalkoxysiloxane to the inorganic oxidic powder is from 19:1 to 1:1.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: February 21, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Roland Edelmann, Björn Borup, Christian Wassmer, Jaroslaw Monkiewicz
  • Patent number: 8119372
    Abstract: An isolated polynucleotide encodes a polypeptide comprising the amino acid sequence of SEQ ID NO: 2, with the L-aspartic acid at position 5 of the amino acid sequence replaced by another proteinogenic amino acid, and possesses citrate synthase activity. In addition, a vector comprises the polynucleotide and a bacterium comprises the vector. An isolated polynucleotide comprises a nucleotide sequence comprising, from position 1 to 39, the nucleotide sequence corresponding to position 1 to 39 of SEQ ID NO: 11, from position 40 to 105, a nucleotide sequence encoding the amino acid sequence of SEQ ID NO: 12, with each proteinogenic amino acid except L-aspartic acid being present at position 5. A method of producing an L-amino acids is also described.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: February 21, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Brigitte Bathe, Wilfried Claes
  • Publication number: 20120037040
    Abstract: The invention relates to a composition and to a method for the production thereof, comprising quaternary amino-functional organosilicon compounds, in particular in the form of oligomers and polymers, which can be present ranging from partially hydrolyzed form to completely hydrolyzed form, and which are in particular soluble in water, have a low VOC content, and to the use thereof.
    Type: Application
    Filed: March 19, 2010
    Publication date: February 16, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Burkhard Standke, Christian Wassmer, Tim Voegtlin, Irene Lippert, Stefan Scharfe, Heinz Lach, Christoph Batz-Sohn, Steffen Hasenzahl
  • Publication number: 20120041132
    Abstract: A molding, produced by a layer-by-layer process in which regions of respective polymer pulverulent layers are selectively melted via introduction of electromagnetic energy, where the process employs a powder which comprises at least one homopolyamide prepared via polycondensation of diamines and dicarboxylic acids, wherein the homopolyamide has an enthalpy of fusion of at least 125 J/g and a recrystallization temperature of at least 148° C.
    Type: Application
    Filed: October 25, 2011
    Publication date: February 16, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Sylvia MONSHEIMER, Franz-Erich Baumann, Maik Grebe, Jörg Lohmar