Patents Assigned to Bayer
  • Patent number: 6642181
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their use for protecting plants against attack by undesirable microorganisms and animal pests.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: November 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hänssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Patent number: 6642342
    Abstract: The present invention relates to thermosetting two-component coating compositions containing A) at least one NCO prepolymer, B) at least one amine-free chain extender, C) at least one catalyst selected from metal 1,3-dicarbonylates and metal-oxo 1,3-dicarbonylates, wherein i) the metal 1,3-dicarbonylate contains as a neutral complex a metal cation with the electron configuration d0 of sub-group 3 or a lanthanide and ii) the metal-oxo 1,3-dicarbonylate contains a metal-oxo cation of sub-group 6 with the electron configuration d0. The present invention also relates to a process for preparing these coating compositions and to coated substrates prepared therefrom.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: November 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Ludewig, Christoph Gürtler, Detlef-Ingo Schütze
  • Patent number: 6642302
    Abstract: The invention relates to a water-soluble or water-dispersible polyurethane which is the reaction product of A) at least one polyether polyol a1) having an average functionality of ≧3 and at least one urethane group-containing polyether polyol a2) having an average functionality of ≧4, B) at least one monoalcohol with 6 to 22 carbon atoms, C) at least one (cyclo)aliphatic and/or aromatic diisocyanate D) at least one oxime, monoamine and/or diamine with 2 to 18 carbon atoms, E) optionally at least one monoisocyanate with 4 to 18 carbon atoms, and F) optionally at least one polyisocyanate having an average functionality of >2 wherein the starting NCO/OH equivalent ratio is between 0.5:1 to 1.2:1 having a particularly efficient thickening effect in the high-shear range, as well as their use for the thickening of aqueous systems.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: November 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Wamprecht, Jan Mazanek, Peter Manshausen, Frank Sauer
  • Publication number: 20030203197
    Abstract: Described are a process for producing elastane yarn having a linear density of at least 2500 dtex by the wet spinning process and the thereby producible coarse linear density elastane yarn having a wide cross section and a low residual solvent content. The process comprises the steps of spinning an up to 35% strength by weight stable-viscosity elastane solution into a coagulation bath, washing and optionally drawing, drying by contact heating, setting, spin finishing and winding the yarn, the filaments leaving the coagulation bath passing around a diverting roller disposed just above the coagulation bath liquid, the as-spun filament linear density amounting to not more than 1% of the value of the final linear density, the jet stretch ratio being within the range from 0.5 to 50, the contact heating temperature being at least 220° C. and the contact time of the elastane yarn being at least 2 seconds.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Applicants: Bayer Aktiengesellschaft, Bayer Faser GmbH
    Inventors: Ulrich Reinehr, Tilo Sehm, Wolfgang Anderheggen, Toni Herbertz
  • Patent number: 6638958
    Abstract: The 3-nitroisoxazoles of the formula (I) in which R1 and R2 are each as defined in the description, some of which are known, are highly suitable for use as biocides for protecting industrial materials.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann Uhr, Oliver Kretschik, Martin Kugler, Peter Wachtler
  • Patent number: 6639102
    Abstract: Polyisocyanates of the diphenyl methane series having reduced color values are obtained by a) reacting aniline and formaldehyde in the presence of an acid catalyst to form a polyamine, b) neutralizing the reaction mixture containing polyamine with a base, c) separating the neutralized mixture into the aqueous and the organic phases, d) adding a base to the organic phase and then e) phosgenating the resulting polyamine to produce the corresponding polyisocyanate.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Torsten Hagen, Friedhelm Kämper, Daniel Koch, Rudolf Uchdorf, Stefan Wershofen
  • Patent number: 6639093
    Abstract: The invention relates to the preparation of hydroxybenzoic benzyl esters by reacting benzyl chloride with hydroxybenzoic acids in the presence of one or more amides.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Pieter Ooms, Bernd-Ulrich Schenke
  • Patent number: 6638990
    Abstract: This invention relates to flame-laminable polyurethane block foams having high peel strength, a process for their production and the use thereof for textile lamination.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Haas, Matthäus Gossner, Klaus-Peter Herzog
  • Patent number: 6638960
    Abstract: New halogenobenzimidazoles of the formula in which A, R1, R2, R3, R4 and X have the meanings given in the description, and their acid addition salts and metal salt complexes, a process for their preparation and their use as microbicides in crop protection and in the protection of materials. New intermediates of the formulae in which R12-R17 and X have the meanings given in the description, and processes for the preparation of these substances.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Albrecht Marhold, Ralf Tiemann, Klaus Stenzel
  • Patent number: 6638989
    Abstract: Rigid foams having excellent compression strength, dimensional stability, flame retardance and adhesion are produced by reacting an active hydrogen compound having at least two functionalities with a polyisocyanate compound in the presence of a catalyst and a blowing agent comprising either water alone or a mixture of water and a low boiling compound, wherein (1) the polyisocyanate compound is a prepolymer obtained by reacting a polymeric MDI with 5 to 30% by weight, based on the polymeric MDI, of a polyether polyol and/or polyester polyol having a hydroxyl value of at most 100 mg KOH/g, and (2) the number of isocyanate groups in the polyisocyanate compound is at least 1.5 times by mole as large as the number of active hydrogen atoms in the active hydrogen compound and water.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Yoshiyuki Dohmoto, Masayuki Fujidai
  • Patent number: 6639005
    Abstract: A thermoplastic molding composition that exhibits antistatic properties and improved color stability is disclosed. The composition contains a major amount of resinous component that contains A) 0 to 100 % by weight of one or more graft polymers B) 100 to 0 % by weight of a thermoplastic vinyl (co)polymer, and a minor amount of a mixture of a) a modified or unmodified polyalkylene ethers and b) a phenolic oxidant wherein the weight ratio (a):(b) is 20:1 to 1:1.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Willenberg, Herbert Eichenauer, Heinrich Alberts
  • Patent number: 6637181
    Abstract: Described is a process for producing segmented polyurethanes having improved processing characteristics in the melt state and an efficient spinning process based thereon to form highly elastic, fine linear density elastane yarn and filament having improved mechanical and thermal properties by using hydroxyalkyl-terminated polysiloxanes in combination with specific crosslinking-capable polyisocyanates in the reaction of long-chain high molecular weight polyhydroxy compounds with organic diisocyanates and low molecular weight diols and also optionally further auxiliary and additive substances in the melt.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Korte, Rolf-Volker Meyer, Stefan Hütte
  • Patent number: 6639040
    Abstract: This invention relates to a continuous process for the production of allophanate modified diphenylmethane diisocyanates having an NCO group content of 19 to 32% and an urethane content of less than 2 area % by GPC analysis. The process comprises (1) continuously reacting (a) diphenylmethane diisocyanate and (b) an alcohol, in the presence of (c) at least 25 ppm of an allophante catalyst, based on the combined weight of the diphenylmethane diisocyanate and the alcohol, in a reactor in an oxygen-free environment; (2) continuously treating the product exiting the reactor with a catalyst stopper at the reaction temperature; and (3) cooling the resultant product.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Corporation
    Inventors: William E. Slack, Hersel T. Kemp, II, William E. Miller
  • Patent number: 6637788
    Abstract: The safety bumper includes: (a) a bumper basic body (4) having a forward surface; (b) a bumper bar (5); (c) a mounting member (11); (d) a cross-bar (10) of the vehicle, (e) at least one of a deployable energy-absorbing element (9; 32, 33, 39, 41; 52, 60) positioned above the mounting member (11) and a deployable energy-absorbing element (17, 20; 38, 46; 64) positioned below mounting member (11); and (f) an impact sensor (6) located in bumper bar (5). The bumper bar (5) is connected to bumper basic body (4) and extends through to the forward surface of bumper basic body (4), bumper bar (5) is also connected to mounting member (11), and mounting member (11) is located behind bumper basic body (4) and bumper bar (5). The mounting member (11) is connected to cross-bar (10), which is located behind mounting member (11).
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Olaf Zöllner, Andreas Lang, Thorsten Bredemann
  • Patent number: 6639022
    Abstract: A process for the preparation of superabsorbent polymers by alkaline hydrolysis of polyacrylonitrile emulsions is disclosed. In an embodiment of the invention the process comprise preparing a PAN emulsion, subjecting the emulsion to alkaline hydrolysis, neutralizing the hydrolysate followed by drying, granulation and modifying the surface of the granular polymer by crosslinking. The process is characterized in that the isolation of the superabsorbent polymer entails neither alcohols nor organic solvents.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gisbert Michels, Thomas Gross
  • Patent number: 6639000
    Abstract: An additive mixture containing a dibenzoate and either or both of a compound containing at least one structural unit and a compound containing at least one structural unit is disclosed. The additive combination enhances the processability of a thermoplastic molding composition that contains a (co)polymer of styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide and a graft copolymer.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Siebourg, Edgar Leitz, Herbert Eichenauer
  • Patent number: 6637928
    Abstract: A static mixer comprising a hollow housing defining an internal longitudinal passageway within which there is arranged an assembly of planer mixer elements having projecting longitudinal components.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventor: Heinrich Schuchardt
  • Patent number: 6639097
    Abstract: This invention relates to a new fungicidally active compound of formula (I), a method of combating fungi at a locus infested or liable to be infested therewith, and an agricultural composition where X is H or O−A+ and A is a radical (II).
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: October 28, 2003
    Assignee: Bayer Cropscience GmbH
    Inventors: Norman John De'Ath, John Klostermyer
  • Patent number: 6638979
    Abstract: The present invention relates to novel imidamide derivatives of the formula (I) in which R, R1, R2 and R3 are each as defined in the description, to a process for their preparation and to their use for controlling animal pests, such as insects, arachnids and, in particular, nematodes.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Peter Gerdes, Ernst-Rudolf F. Gesing, Achim Hense, Johannes Kanellakopulos, Kristian Kather, Rolf Kirsten, Stefan Lehr, Lothar Rohe, Katharina Voigt, Detleff Wollweber, Wolfram Andersch
  • Patent number: 6635780
    Abstract: The invention relates to a process for the preparation of a compound of formula (I) wherein: R1 represents C1-4 haloalkyl, fluorine, chlorine or bromine; and R2 represents hydrogen or C1-4 alkoxy; which process comprises the reaction of the corresponding ortho-nitrohalobenzene of formula (II): wherein R1 and R2 are as hereinbefore defined and X represents a fluorine or bromine atom, with, when X represents a fluorine atom: (a) an alkali metal cyanide, in a non aqueous solvent, optionally in the presence of a catalyst; or when X represents a bromine atom: (b) cuprous cyanide, in a non aqueous solvent, optionally in the presence of a catalyst selected from an alkali metal bromide or an alkaline earth metal bromide; or (c) an alkali metal cyanide, in a non aqueous solvent, in the presence of a catalytic amount of cuprous cyanide and a phase transfer catalyst.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: October 21, 2003
    Assignee: Bayer CropScience S.A.
    Inventors: Michel Casado, Patrick Ratton, Dominique Stephan, Agnès Viauvy