Patents Represented by Attorney Michael A. Miller

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  • Fluorine-containing bisphenols, their preparation, their precursors and intermediates, and use of the fluorine-containing bisphenols
    Patent number: 7268260
    Abstract: This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-perfluoroalkyl, C1-C4-perfluoroalkoxy, C1-C4-perfluoroalkylthio, C1-C4-polyfluoroalkyl, C1-C4-polyfluoroalkoxy, or C1-C4-polyfluoroalkylthio, R2 is C1-C4-alkyl, and n is an integer from 0 to 4. This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 11, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Albrecht Marhold, Käthe Baumann
  • Process for preparing methyl 4-(aminomethyl)benzoate
    Patent number: 7265238
    Abstract: An advantageous process is provided for preparing methyl 4-(aminomethyl)benzoate by esterifying 4-(aminomethyl)benzoic acid and subsequently obtaining the methyl 4-(aminomethyl)benzoate, this process proceeding under specific pH and temperature control and isolation of the hydrochloride of methyl 4-(aminomethyl)benzoate formed as an intermediate being avoidable.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: September 4, 2007
    Assignee: Saltigo GmbH
    Inventors: Michael Dockner, Torsten Neugebauer
  • Difluorobenzo-1,3-dioxoles
    Patent number: 7259267
    Abstract: The invention relates to difluorobenzo-1,3-dioxoles, to a process for their preparation, and to their use for preparing medicaments and crop protection agents.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: August 21, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Axel Pleschke, Albrecht Marhold
  • Organic formulations of pigment
    Patent number: 7255737
    Abstract: The present invention is directed to pigment formulations comprising at least one metal complex of an azo compound which in the form of its tautomeric structures generally conforms to the formula (I) The invention is further directed to processes for their production of the metal complexes and their use and particularly to color filters and the use of the color filters.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: August 14, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Ulrich Feldhues, Frank Linke, Ronald Göbel
  • 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 10?-[4?-(S,S-dioxothiomorpholin-1?-yl)]-10-deoxo-10-dihydroartemisinin
    Patent number: 7241888
    Abstract: A novel one-stage process for preparing 10?-[4?-(S,S-dioxothiomorpholin-1?-yl)]-10-deoxo-10-dihydroartemisinin (1a) by reacting a compound of the formula (1b) in which X is a halogen atom with thiomorpholine dioxide at a temperature in the range of ?30° C. to +20° C. is provided.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 10, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventor: Bettina Hölzer
  • Pyrazolylalkines
    Patent number: 7238722
    Abstract: The present invention relates to pyrazolyalkines and to their use, to a process for preparing them and also to intermediates.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: July 3, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wolfgang Ebenbeck, Florian Rampf, Albrecht Marhold
  • Chiral diphosphinoterpenes and transition metal complexes thereof
    Patent number: 7235696
    Abstract: The present invention relates to chiral diphosphinoterpenes and transition metal complexes thereof, to a process for preparing chiral diphosphinoterpenes and oxides thereof, and to transition metal complexes comprising the chiral diphosphinoterpenes. In a further aspect, the invention relates to the use of the chiral diphosphinoterpenes or transition metal complexes thereof in asymmetric syntheses.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: June 26, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Paul Knochel, Tanasari Bunlaksananusorn, Andrei Gavryushin
  • Preparation of mono-N-sulphonylated diamines
    Patent number: 7232927
    Abstract: The present invention relates to a process for preparing mono-N-sulphonylated diamines by reacting diamines with sulphonyl halides in the presence of water, base and organic solvents.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: June 19, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Boris Elmar Bosch, Frank Gerhartz
  • Process for preparing tertiary phosphines
    Patent number: 7230136
    Abstract: The invention relates to a process for synthesizing tertiary phosphines by reacting halophosphines with organomagnesium compounds in the presence of copper compounds and optionally of salts.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: June 12, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Florian Rampf, Hans-Christian Militzer
  • Preparation of thiosulphuric acid derivatives
    Patent number: 7217834
    Abstract: The invention relates to a novel process for preparing salts of S-alkyl esters of thiosulphuric acid by reacting organic dihalides with thiosulphates in water.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: May 15, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventor: Hartmuth Buding
  • Condensation reagents and a process for their preparation
    Patent number: 7214801
    Abstract: The present invention relates to new bromo- and chlorothiazolium salts of the formula (I) in which R1, R2, R3, R4, n and X? have the meaning indicated in the disclosure, a process for their preparation, their use as condensation reagents, particularly as peptide coupling reagents, and intermediates for the preparation of these compounds.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: May 8, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Joachim Rudolph, Ralf Wischnat
  • Preparation of trimethylolpropane
    Patent number: 7211701
    Abstract: The present invention relates to a process for preparing trimethylolpropane having a low APHA color number.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: May 1, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Dirk Müller, Paul Wagner, Brian Schwegler, Ulrich Notheis, Ralph Armbrust, Hans-Detlef Heinz, Alexander Wagner
  • Chromium-free, waterproof leather
    Patent number: 7208016
    Abstract: Chromium-free leather having a waterproofness, measured as penetration time according to DIN 53338 , of at least 30 min.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: April 24, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Martin Kleban, Ahmet Kaplan, Jürgen Reiners, Henrik Winther
  • Polyamino acid-catalyzed process for the enantioselective epoxidation of ?,?-unsaturated enones and ?,?-unsaturated sulfones
    Patent number: 7208447
    Abstract: The invention relates to a novel process that makes it possible to epoxidize ?,?-unsaturated enones or ?,?-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: April 24, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Thomas Geller, Christa Maria Krüger, Hans-Christian Militzer
  • Method of producing amines
    Patent number: 7205440
    Abstract: The invention relates to a special two-step method for producing amines on the basis of amides by reacting them with halides or hypohalites in an aqueous solution in a Hofmann degradation reaction. The amide is reacted in an alkaline solution and/or suspension with halides or hypohalites and the reaction mixture obtained in step 1 is added to an aqueous alkaline solution having a temperature of at least 40° C.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: April 17, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Peter Wenzl, Friedrich Dürrholz, Herbert V. Diehl
  • Active compound combinations for protecting animal hides and leather
    Patent number: 7201854
    Abstract: The present application relates to the use of active compound combinations containing phenolic active compounds and fungicidal active compounds for preserving animal hides and leather.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: April 10, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz-Joachim Rother, Hartmut Rehbein, Martin Kugler
  • Fluoraminoolefins and fluorination reagents which can be prepared therefrom
    Patent number: 7196226
    Abstract: The present invention relates to fluorination reagents comprising 1-fluoro-1-aminoolefins and also processes for preparing fluorination reagents comprising 1-fluoro-1-aminoolefins.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 27, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Wolfgang Ebenbeck, Albrecht Marhold
  • Acid Red 82 in mixtures
    Patent number: 7193085
    Abstract: The invention relates to mixtures containing the dye C.I. Acid Red 82 (formula IIb) and C.I.
    Type: Grant
    Filed: September 13, 2003
    Date of Patent: March 20, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Thomas Sommermann, Peter Wild
  • Process for the racemate resolution of 3-aminopentanenitrile
    Patent number: 7193102
    Abstract: By means of a new process for the resolution of racemic 3-aminopentanenitrile, enantiomerically enriched 3-aminopentanenitrile or its salts can be obtained. For this, racemic 3-aminopentanenitrile is reacted with an enantiomerically enriched organic acid and one of the two diastereomeric salts formed is separated off and then converted into the enantiomerically enriched 3-aminopentanenitrile or its salts.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: March 20, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Claus Dreisbach, Björn Schlummer