Patents Assigned to Evonik Degussa AG
  • Patent number: 8449812
    Abstract: A process for the production of a titanium silicalite shaped article by: a) preparation of a synthesis gel containing a Si2 source, a Ti2 source, a template compound and water, b) crystallization of the synthesis gel under hydrothermal conditions, c) drying of the titanium silicalite from step b) at a temperature below the decomposition temperature of the template compound, d) preparation of a formable mass containing the product from step c), a binder and a paste-forming agent, e) forming of the mass from step d) into a green shaped article, f) optionally drying, and g) calcinations of the green shaped article, as well as a titanium silicalite shaped article obtainable according to this process, and the use of this shaped article as a catalyst in epoxidation or ammoximation reactions.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: May 28, 2013
    Assignee: Evonik Degussa AG
    Inventors: Steffen Hasenzahl, Ralf Jantke
  • Patent number: 8252555
    Abstract: The present invention relates to nucleotide sequences encoding enzymatically active cobalamin-methionine synthase and functional fragments thereof that are modified in comparison to the respective wild-type enzyme such that said enzymes show reduced product inhibition by methionine. The present invention also relates to polypeptides being encoded by such nucleotide sequences and host cells comprising such nucleotide sequences. Furthermore, the present invention relates to methods for producing methionine in host organisms by making use of such nucleotide sequences.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 28, 2012
    Assignee: Evonik Degussa AG
    Inventors: Oskar Zelder, Wolfgang Grabarse, Corinna Klopprogge, Hartwig Schröder, Stefan Haefner, Anja Knietsch, Andrea Herold
  • Publication number: 20090309492
    Abstract: The invention relates to an organic light emitting component, particularly an organic light emitting diode, in which an arrangement is formed that comprises a bottom electrode, a top electrode, and an organic layer region which is located between and is in electrical contact with the bottom electrode and the top electrode and contains at least one hole transport layer, at least one electron transport layer, and a light-emitting area. The bottom electrode is formed from a dispersion as a structured, binder-free, and optically transparent bottom electrode layer made of a bottom electrode material by means of a wet chemical application process, said bottom electrode material being an optically transparent, electrically conductive oxide. The bottom electrode layer has a sheet resistance of less than about 500 ?/square and an optical refractive index of less than 1.8.
    Type: Application
    Filed: September 3, 2007
    Publication date: December 17, 2009
    Applicants: NOVALED AG, EVONIK DEGUSSA AG
    Inventors: Michael Hofmann, Martina Inhester, Jan Birnstock, Thomas Luethge, Dieter Adam