Patents by Inventor Christian SEVERINS

Christian SEVERINS 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).

  • Continuous method for producing ortho-substituted anilines in a flow reactor
    Patent number: 9527808
    Abstract: Continuous process for preparing ortho-substituted anilines of the formula in a flow reactor in the presence of a nitrogen base not having an NH group, and multistage process for preparing herbicidal N-alkyl-N-[2-(1,3,5-triazin-2-ylcarbonyl)-phenyl]alkansulphonamides of the formula (4-1) wherein the continuous process for preparing ortho-substituted anilines of the formula (4) in a flow reactor constitutes the first process step of the multistage process for preparing the herbicidal active ingredients of the formula (4-1).
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: December 27, 2016
    Assignees: Bayer CropScience AG, Bayer Aktiengesellschaft
    Inventors: Mark James Ford, Christian Severins
  • CONTINUOUS METHOD FOR PRODUCING ORTHO-SUBSTITUTED ANILINES IN A FLOW REACTOR
    Publication number: 20150210637
    Abstract: Continuous method for producing ortho-substituted anilines in a flow reactor Continuous process for preparing ortho-substituted anilines of the formula in a flow reactor in the presence of a nitrogen base not having an NH group, and multistage process for preparing herbicidal N-alkyl-N-[2-(1,3,5-triazin-2-ylcarbonyl)-phenyl]alkansulphonamides of the formula (4-1) wherein the continuous process for preparing ortho-substituted anilines of the formula (4) in a flow reactor constitutes the first process step of the multistage process for preparing the herbicidal active ingredients of the formula (4-1).
    Type: Application
    Filed: September 12, 2013
    Publication date: July 30, 2015
    Applicants: BAYER CROPSCIENCE AG, BAYER TECHNOLOGY SERVICES GmbH
    Inventors: Mark James Ford, Christian Severins
  • Process for preparing 2,2-difluoroethylamine from 2,2-difluoro-1-chloroethane and ammonia
    Patent number: 8766008
    Abstract: Process for preparing 2,2-difluoroethylamine, comprising the following steps: (i) mixing 2,2-difluoro-1-chloroethane and gaseous, liquid or supercritical ammonia in a pressure-stable, closed reaction vessel under a pressure in the range from 10 to 180 bar; (ii) reacting the reaction mixture at a reaction temperature in the range from 80° C. to 200° C.; (iii) letting down the reaction mixture and isolating 2,2-difluoroethylamine.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: July 1, 2014
    Assignee: Bayer Cropscience AG
    Inventors: Norbert Lui, Rafael Warsitz, Christian Funke, Christian Severins
  • CARBOXYLATION OF POLY-/OLIGOTHIOPHENES
    Publication number: 20130345440
    Abstract: The present invention relates to a process for carboxylation of poly/oligothiophenes using CO2.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 26, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christian Severins, Asier Eleta-Lopez, Sigurd Buchholz, Kilian Tellmann, Björn Henninger, Leslaw Mleczko
  • METHOD FOR CARBOXYLIZING AROMATES AND HETETOAROMATES USING CO2
    Publication number: 20120323019
    Abstract: The present invention relates to a process for the preparation of aromatic and heteroaromatic carboxylic acids using CO2.
    Type: Application
    Filed: December 17, 2010
    Publication date: December 20, 2012
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Christian Severins, Sigurd Buchholz, Kilian Tellman, Jürgen Wieschemeyer, Klaus Weidemann
  • PROCESS FOR PREPARING 2,2-DIFLUOROETHYLAMINE FROM 2,2-DIFLUORO-1-CHLOROETHANE AND AMMONIA
    Publication number: 20120184777
    Abstract: Process for preparing 2,2-difluoroethylamine, comprising the following steps: (i) mixing 2,2-difluoro-1-chloroethane and gaseous, liquid or supercritical ammonia in a pressure-stable, closed reaction vessel under a pressure in the range from 10 to 180 bar; (ii) reacting the reaction mixture at a reaction temperature in the range from 80° C. to 200° C.; (iii) letting down the reaction mixture and isolating 2,2-difluoroethylamine.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 19, 2012
    Applicant: BAYER CROPSCIENCE AG
    Inventors: Norbert LUI, Rafael WARSITZ, Christian FUNKE, Christian SEVERINS