Patents by Inventor Thomas Kübelbäck

Thomas Kübelbäck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8222406
    Abstract: Provided is a process for preparing a heterocycle by catalytic reaction of an aromatic dinitrile with an amino alcohol, wherein the process includes: initially charging into a reaction vessel the amino alcohol and a catalyst to produce a reaction mixture; adding the aromatic dinitrile into the reaction mixture, which is maintained at a reaction temperature, wherein no solvent other than the amino alcohol of formula (III) is added to the reaction mixture prior to and/or during the catalytic reaction; and after completion of the catalytic reaction, completely replacing, or substantially completely replacing, unreacted amino alcohol with a nonpolar solvent to obtain the heterocycle, wherein the unreacted amino alcohol is present in an amount of not more than 20 wt. %, preferably 3-10 wt. % or less, based on a total weight of the heterocycle.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: July 17, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Kuebelbaeck, Manfred Neumann, Marianne Omeis
  • Publication number: 20100076186
    Abstract: Provided is a process for preparing a heterocycle by catalytic reaction of an aromatic dinitrile with an amino alcohol, wherein the process includes: initially charging into a reaction vessel the amino alcohol and a catalyst to produce a reaction mixture; adding the aromatic dinitrile into the reaction mixture, which is maintained at a reaction temperature, wherein no solvent other than the amino alcohol of formula (III) is added to the reaction mixture prior to and/or during the catalytic reaction; and after completion of the catalytic reaction, completely replacing, or substantially completely replacing, unreacted amino alcohol with a nonpolar solvent to obtain the heterocycle, wherein the unreacted amino alcohol is present in an amount of not more than 20 wt. %, preferably 3-10 wt. % or less, based on a total weight of the heterocycle.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 25, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Thomas KUEBELBAECK, Manfred Neumann, Marianne Omeis
  • Patent number: 7652180
    Abstract: The invention relates to a process for preparing alkyl chlorides by reacting alcohols with gaseous hydrogen chloride in the presence of a catalyst, wherein the catalyst comprises at least one compound of the structure: wherein R1 is a linear alkyl group having from 1 to 20 carbon atoms, R2, R3, and R4 is selected from a hydrogen, an alkyl, an alkenyl, an aralkyl or an alkylaryl group from 1 to 20 carbon atoms, wherein the substituents of R2, R3, and R4 are all identical, are all different or two of the substituents of R2, R3, and R4 type are identical.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: January 26, 2010
    Assignee: Degussa AG
    Inventors: Clemens Osterholt, Manfred Neumann, Thomas Kuebelbaeck, Kerstin Bodmann
  • Patent number: 7485756
    Abstract: A continuous process for decarboxylating carboxylic acids proceeds by I.) initially charging a carbonyl compound as a catalyst in a solvent at reaction temperature, to obtain a catalyst solution; II.) metering a carboxylic acid into the catalyst solution as an aqueous solution, aqueous suspension or as a water-comprising solid, to obtain a reaction mixture; and III.) continuously removing a mixture of CO2, solvent, water and a reaction product or mixture of reaction products from the reaction mixture as a vapor.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 3, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Marianne Omeis, Guenther Koehler, Manfred Neumann, Thomas Kuebelbaeck
  • Publication number: 20080214864
    Abstract: A continuous process for decarboxylating carboxylic acids proceeds by I.) initially charging a carbonyl compound as a catalyst in a solvent at reaction temperature, to obtain a catalyst solution; II.) metering a carboxylic acid into the catalyst solution as an aqueous solution, aqueous suspension or as a water-comprising solid, to obtain a reaction mixture; and III.) continuously removing a mixture of CO2, solvent, water and a reaction product or mixture of reaction products from the reaction mixture as a vapor.
    Type: Application
    Filed: December 20, 2007
    Publication date: September 4, 2008
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Marianne Omeis, Guenther Koehler, Manfred Neumann, Thomas Kuebelbaeck
  • Patent number: 7385092
    Abstract: A process for preparing diols or triols made up of a1) reacting at least one monoolefin having 4 to 20 carbon atoms with hydrogen peroxide and formic acid in the presence of water to form a mixture or a2) reacting at least one monoolefin alcohol having 4 to 20 carbon atoms first with formic acid, and then reacting the product formed thereby with hydrogen peroxide in the presence of water to form a mixture, b) removing, by distillation, the water and formic acid from the mixture obtained in a1) or a2), c) reacting the mixture obtained from b) with an aliphatic alcohol in the presence of a sulfonic acid to form the diol or triol and at least one formic ester by-product, and d) optionally removing, by distillation, the at least one formic ester by-product formed together with any residual at least one aliphatic C1-C4-alcohol to isolate the diol or triol.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 10, 2008
    Assignee: Degussa AG
    Inventors: Clemens Osterholt, Volker Brehme, Thomas Kübelbäck, Günther Köhler