Patents Assigned to Bayer
  • Chambered circulation evaporator
    Patent number: 6685801
    Abstract: A circulation evaporator for separating mixtures having more volatile and less volatile components. The circulation evaporator contains an evaporator, a discharge container connected to the evaporator by a connecting piece, a condenser, a vacuum pump, a recirculating line, a feed line and an outflow line. The discharge container contains a chamber for feed and a chamber for outflow. The invention further relates to a process for the separation by distillation of a mixture having more volatile and less volatile components by employing the circulation evaporator.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: February 3, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt-Manfred Küpper, Andre Fellhölter
  • Methods and compositions for the prediction, diagnosis, prognosis, prevention and treatment of malignant neoplasma
    Publication number: 20040018525
    Abstract: The invention provides novel compositions, methods and uses, for the prediction, diagnosis, prognosis, prevention and treatment of malignant neoplasia and breast cancer in particular. Genes that are differentially expressed in breast tissue of breast cancer patients versus those of normal people are disclosed.
    Type: Application
    Filed: May 9, 2003
    Publication date: January 29, 2004
    Applicant: Bayer Aktiengesellschaft
    Inventors: Ralph Wirtz, Marc Munnes, Harald Kallabis
  • Cyclic guanidine derivatives and their use as pesticides
    Patent number: 6683028
    Abstract: The invention relates to novel guanidine derivatives of the formula (I) in which A, R1, R2, R3 and Z are as defined in the description, to a process for their preparation and to their use for controlling animal pests.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: January 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Wagner, Christoph Erdelen, Andreas Turberg, Norbert Mencke, Olaf Hansen
  • Polycarbonate containers
    Patent number: 6682794
    Abstract: A container made of polycarbonate resin is disclosed. The container is characterized in that the polycarbonate is prepared by the phase interface process that is characterized in that the aqueous solution of an alkali salt of a bisphenol used, contains dissolved oxygen in an amount less than 150 ppb. The process for making the container is also disclosed.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: January 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Horn, Steffen Kühling, Ralf Hufen, Rolf Lanze, Michael Prein, Rainer Neumann, Hermann Kauth, Frieder Heydenreich, Tony van Osselaer
  • Halopyrimidines
    Patent number: 6683029
    Abstract: The invention relates to novel halogenopyrimidines, to a plurality of processes for their preparation and to their use as pesticides.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: January 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Krüger, Herbert Gayer, Peter Gerdes, Ulrich Heinemann, Astrid Mauler-Machnik, Martin Vaupel, Fritz Maurer, Ulrike Wachendorff-Neumann, Gerd Hänssler, Karl-Heinz Kuck, Peter Lösel, Ralf Dunkel
  • Method for preparing chiral amino acids
    Patent number: 6683190
    Abstract: The invention concerns a novel method for preparing chiral amino acids of formula (I) characterised in that it consists in contracting a racemic hydantoin of formula (II) with an enantiomeric splitting agent.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 27, 2004
    Assignee: Bayer Cropscience S.A.
    Inventor: Isabelle Pelta
  • Fluidised bisphenol dust
    Patent number: 6683223
    Abstract: A process for fluidizing bisphenol dust is disclosed. The process entails adding 0.1 to 10 parts by weight of water per 1 part by weight of bisphenol dust. Also disclosed is a process for preparing a bisphenol wherein the fluidized bisphenol dust according to the invention is introduced before, during or after reaction of a phenol with a carbonyl compound.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Bödiger, Rainer Neumann, Nikolai Kostyszyn, Rolf Lanze, Frieder Heydenreich, Michael Prein
  • Process for making a thermoplastic molding composition
    Patent number: 6683123
    Abstract: A process for producing a thermoplastic molding composition is disclosed. The process entails introducing a solid polymeric resin, optionally containing residual moisture, into an extruder, operating under conditions designed to melt the resin and charging water into the melt while in the extruder to yield wet, molten resin that contains water in an amount of at least about 2 percent. The wet, molten resin is then devolatilized to yield dry resin having water content not exceeding 0.3 percent. Molding compositions thus produced have improved properties. In a preferred embodiment, the process results in a molding composition that contains a fine dispersion of a discontinuous phase in a continuous polymeric phase.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: January 27, 2004
    Assignee: Bayer Polymers LLC
    Inventor: Henry A. Kozlowski
  • Epoxidized soybean oil enhanced hydrogenation of nitrile copolymer
    Patent number: 6683136
    Abstract: The present invention provides a process of hydrogenating a nitrile copolymer rubber, which comprises subjecting the copolymer to hydrogenation in the presence of a hydrogenation catalyst, a co-catalyst, and a proton acceptor that is non-coordinating with the metal-complex catalyst.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: January 27, 2004
    Assignee: Bayer Inc.
    Inventors: Sharon X. Guo, Paul Nguyen
  • Triazolotriazinones and the use thereof
    Patent number: 6683081
    Abstract: The invention relates to novel triazolotriazinones of the general formula (I), to a method for their production and to the pharmaceutical use thereof.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: January 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Niewöhner, Helmut Haning, Thomas Lampe, Mazen Es-Sayed, Gunter Schmidt, Erwin Bischoff, Klaus Dembowsky, Elisabeth Perzborn, Karl-Heinz Schlemmer
  • Process for removing mercury from flue gases
    Publication number: 20040013589
    Abstract: The invention describes a process for removing mercury from flue gases of high-temperature plants, in particular power stations and waste incineration plants in which a bromine compound is fed to the if appropriate multistage furnace and/or the flue gas in a plant section downstream of the furnace, the temperature during contact of the bromine compound with the flue gas being at least 500° C., preferably at least 800° C. The combustion is carried out in the presence of a sulphur compound, in particular sulphur dioxide. Subsequently to the furnace, the flue gas is subjected to an if appropriate multistage cleanup for removing mercury from the flue gas, which cleanup comprises a wet scrubber and/or a dry cleanup.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 22, 2004
    Applicant: Bayer AG
    Inventors: Bernhard Vosteen, Joachim Beyer, Theodor-Gerhard Bonkhofer, Olaf Fleth, Andrea Wieland, Andreas Pohontsch, Rico Kanefke, Ewa Standau, Claus Mueller, Michael Nolte, Heinz Koeser
  • Processes for the preparation of &agr;-substituted benzylnitroguanidines
    Patent number: 6680408
    Abstract: Processes for preparing &agr;-substituted benzylnitroguanidines include the steps of providing a reaction mixture comprising water, alcohol, an S-alkyl nitroisothiourea, and an &agr;-substituted benzylamine; heating the reaction mixture; steam distilling the alcohol from the reaction mixture; and isolating an &agr;-substituted benzylnitroguanidine from the remaining water layer.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Cropscience LP
    Inventors: David M. Mayes, Vijay C. Desai, Eric Rivadeneira
  • Molding materials
    Patent number: 6680350
    Abstract: A molding composition suitable for the preparation of glazing is disclosed. The composition contains a transparent thermoplastic polymer and a phthalocyanine or naphthalocyanine. Also disclosed is a method for preparing the composition.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Martin Döbler
  • Process and apparatus for preparing granulates
    Patent number: 6680032
    Abstract: A new process for continuously preparing granules having narrow grain size distribution, comprising a) spraying the product to be granulated in liquid form into a fluidized bed, b) separating the proportions of fine material escaping from the fluidized bed from the off-gas and returning said fine material to the fluidized bed as nuclei for granule formation, c) setting the fluidizing gas flow such that granules are formed which are of a predetermined size, and d) removing the completed granules solely by way of at least one countercurrent gravity classifier inserted into the outflow bottom of the fluidized-bed vessel. A new apparatus for carrying out the process according to the invention and new granules.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: January 20, 2004
    Assignee: Bayer AG
    Inventors: Hans Uhlemann, Burkhard Braun, Heinz Hausmann, Gerhard Stopp, Horts Karkossa
  • Method for preparing substituted 5-amino-N-phenyl-1,2,4-triazole-3-sulfonamides
    Patent number: 6680388
    Abstract: The present invention relates to a process for preparing 5-amino-N-phenyl-1,2,4-triazole-3-sulfonamides of the formula (I) where X is halogen, cyano or nitro, R is hydrogen or optionally halogen-substituted C1-C4-alkyl, and n is 1 or 2, by reacting 5-amino-3-chlorosulfonyl-1,2,4-triazole of the formula (II) with substituted anilines of the formula (III) where X, n and R are as defined for formula (I), in the absence of a solvent.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Cropscience AG
    Inventors: Christian Beier, Reinhard Lantzsch
  • Shaped bodies which release agrochemical active substances
    Patent number: 6680065
    Abstract: The present invention relates to shaped articles which release agrochemical active compounds, are used for treatment of woody plants and are employed in a hollow preformed in the woody plant, are of a volume which fills the volume of the hollow to the extent of 10 to 95%, are of a volume which does not increase during the period of use to the extent that the preformed hollow space is filled completely, comprise a) agrochemical active compounds, b) water-insoluble thermoplastically processable polymers, c) water-soluble polymers and d) if appropriate further auxiliaries.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Podszun, Uwe Priesnitz, Jürgen Hölters, Bodo Rehbold, Rafel Israels
  • Agents for combating plant pests
    Patent number: 6680325
    Abstract: The present invention provides compositions for controlling plant pests, which contain the compound of the formula (I) in a mixture with fungicidally active compounds, except for cyclopropylcarboxamide derivatives and azolylmethylcycloalkanes.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christoph Erdelen, Wolfram Andersch, Klaus Stenzel, Astrid Mauler-Machnik, Wolfgang Krämer
  • Bonding agent combination for water-proof coatings that are produced by coil coating
    Patent number: 6680358
    Abstract: The present invention relates to a new liquid, storage-stable coating composition, which is suitable for the production of coatings which have an outstanding resistance to external weathering, and binders thereof which are composed of a hardener component comprising an aminoplast resin and/or a blocked polyisocyanate and a specific polyol component of selected units, and to its use for the production of weathering-resistant coatings on any desired heat-resistant substrates.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Wamprecht, Christian Füssel, Karl-Ludwig Noble
  • Continuous process for the production of carboxylic acid diaryl esters
    Patent number: 6680400
    Abstract: An improvement to the interfacial boundary process for continuous production of carbonic acid diaryl esters is disclosed. The process that entails a reaction of monophenols in an inert solvent, in the presence of an alkaline solution and a nitrogen base catalyst, is carried out in two stages. In the first stage phosgene, inert solvent and phenol in solution are combined to form a material system and a second stage the reaction to form carbonic acid diaryl ester is completed. The improvement comprising maintaining in the first stage a pH of 11.0 to 12.0 and a temperature below 40° C. and a pH of 7.5-10.5 and a temperature <50° C. in the second stage.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Alewelt, Steffen Kühling, Johan Vanden Eynde, Dirk Van Meirvenne
  • Device and process for the production of plastics/metal composite panels
    Patent number: 6680017
    Abstract: The invention relates to a device for the continuous production of plastics/metal composite panels, in particular those having hollow chambered sections, from thermoplastic polymers (3) and continuous metal sheets (6, 7), consisting of at least one plastics melting control system (1), calibrators (4, 5), feeds for the metal sheets (10, 11) and a draw-off unit (9), with the feeds for the metal sheets (10, 11) being arranged respectively above and below the melting control system (1) and the calibrators (4, 5) being immediately adjacent to the feeds (10, 11) and the melting control system (1).
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 20, 2004
    Assignee: Bayer AG
    Inventors: Boris Koch, Hubert Goldbach, Frank Krause, Jürgen Röhner