Patents by Inventor Alexander Kolomeitsev

Alexander Kolomeitsev 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).

  • FLUORINATING REAGENTS AND THEIR PREPARATION
    Publication number: 20100036119
    Abstract: The present invention relates to ?,?-difluoroamines, fluorinating reagents comprising ?,?-difluoroamines and also processes for preparing ?,?-difluoroamines and fluorinating reagents comprising ?,?-difluoroamines.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 11, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WOLFGANG EBENBECK, PETRA HILGERS, ALBRECHT MARHOLD, JAN ALEXANDER BARTEN, ALEXANDER KOLOMEITSEV, GERD-VOLKER ROSCHENTHALER
  • Process for preparing nuclear-fluorinated aromatics
    Patent number: 7247733
    Abstract: The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and An? have the meanings specified in the disclosure.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: July 24, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Marielouise Henrich, Albrecht Marhold, Alexander Kolomeitsev, Gerd Röschenthaler
  • Process for preparing nuclear-fluorinated aromatics
    Patent number: 7091362
    Abstract: The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and Any have the meanings specified in the disclosure.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: August 15, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Marielouise Henrich, Albrecht Marhold, Alexander Kolomeitsev, Gerd Röschenthaler
  • ?, ?-difluoroamines and difluoromethylene-?, ?-diazo compounds
    Patent number: 7045662
    Abstract: The present invention relates to a process for preparing ?,?-difluoroamines, difluoromethylene-?,?-diazo compounds and fluorination reagents containing ?,?-difluoroamines and/or difluoromethylene-?,?-diazo compounds.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: May 16, 2006
    Assignee: Bayer Chemicals AG
    Inventors: Wolfgang Ebenbeck, Albrecht Marhold, Alexander Kolomeitsev, Gerd-Volker Röschenthaler
  • Process for preparing nuclear-fluorinated aromatics
    Publication number: 20050228201
    Abstract: The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and An? have the meanings specified in the disclosure.
    Type: Application
    Filed: June 9, 2005
    Publication date: October 13, 2005
    Inventors: Marielouise Henrich, Albrecht Marhold, Alexander Kolomeitsev, Gerd Roschenthaler
  • Fluorinating reagents and their preparation
    Publication number: 20050085474
    Abstract: The present invention relates to ?,?-difluoroamines, fluorinating reagents comprising ?,?-difluoroamines and also processes for preparing ?,?-difluoroamines and fluorinating reagents comprising ?,?-difluoroamines.
    Type: Application
    Filed: January 5, 2004
    Publication date: April 21, 2005
    Inventors: Wolfgang Ebenbeck, Petra Hilgers, Albrecht Marhold, Jan Barten, Alexander Kolomeitsev, Gerd-Volker Roschenthaler
  • Process for preparing polyfluoroalkylithium compounds
    Patent number: 6872861
    Abstract: The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: March 29, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Marielouise Schneider, Albrecht Marhold, Alexander Kolomeitsev, Alexander Kadyrov, Gerd-Volker Röschenthaler, Jan Barten
  • Alpha, alpha-difluoroamines and difluoromethylene-alpha, alpha-diazo compounds
    Publication number: 20040198975
    Abstract: The present invention relates to a process for preparing &agr;,&agr;-difluoroamines, difluoromethylene-&agr;,&agr;-diazo compounds and fluorination reagents containing &agr;,&agr;-difluoroamines and/or difluoromethylene-&agr;,&agr;-diazo compounds.
    Type: Application
    Filed: January 5, 2004
    Publication date: October 7, 2004
    Inventors: Wolfgang Ebenbeck, Albrecht Marhold, Alexander Kolomeitsev, Gerd-Volker Roschenthaler
  • Process for preparing polyfluoroalkyllithium compounds
    Publication number: 20030065135
    Abstract: The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases.
    Type: Application
    Filed: June 7, 2002
    Publication date: April 3, 2003
    Inventors: Marielouise Schneider, Albrecht Marhold, Alexander Kolomeitsev, Alexander Kadyrov, Gerd-Volker Roschenthaler, Jan Barten
  • Process for preparing nuclear-fluorinated aromatics
    Publication number: 20030036667
    Abstract: The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C.
    Type: Application
    Filed: June 12, 2002
    Publication date: February 20, 2003
    Inventors: Marielouise Henrich, Albrecht Marhold, Alexander Kolomeitsev, Gerd Roschenthaler
  • Borate salts for use in electrochemical cells
    Publication number: 20020160261
    Abstract: The invention relates to borate salts and to their use in electro-chemical cells.
    Type: Application
    Filed: January 24, 2002
    Publication date: October 31, 2002
    Applicant: Merck GmbH
    Inventors: Michael Schmidt, Andreas Kuhner, Klaus-Dieter Franz, Gerd-Volker Roschenthaler, German Bissky, Alexander Kolomeitsev, Alexander Kadyrov
  • Process for preparing fluorine-containing compounds
    Patent number: 6184425
    Abstract: The present invention relates to a process for preparing fluorine-containing compounds by reacting a compound which contains fluorine-exchangeable halogen with a fluoride or a mixture of fluorides with the formula I MeF  (I), in which Me is an alkaline earth metal ion, NH4+-ion or alkali metal ion, in the presence of a compound or a mixture of compounds of the formula (II) in which A1, A2, A3, A4, A5, A6, A7, A8 independently of one another are identical or different and are a straight-chain or branched alkyl or alkenyl having 1 to 12 carbon atoms, cycloalkyl having 4 to 8 carbon atoms, an aryl having 6 to 12 carbon atoms, or an aralkyl having 7 to 12 carbon atoms, or A1 A2, A3A4, A5A6, and A7A8 independently of one another are identical or different and are connected to one another directly or by way of O or N—A9 to form a ring having 3 to 7 ring members, A9 is an alkyl having 1 to 4 carbon atoms and B− is a monovalent acid radical or the equivalent of a polyval
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: February 6, 2001
    Assignee: Aventis Research & Technologies GmbH & Co.
    Inventors: Alexander Kolomeitsev, Sergej Pasenok