Patents Assigned to Bayer
  • Dyestuff mixtures
    Patent number: 5295999
    Abstract: The dyestuff mixtures comprising the dyestuff of the formula (I) ##STR1## and a dyestuff of the formula ##STR2## wherein R.sub.1 and R.sub.2 independently of one another represent alkyl, cycloalkyl or aryl,and/or tautomeric forms of the dyestuffs of the formulae (I) and/or (II), are particularly suitable for the preparation of concentrated, storage-stable dyestuff solutions which, apart from a small amount of alkanolamines, comprise no further water-soluble organic solubilising agents.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: March 22, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Hinrichs, Peter Wild
  • Medicaments containing substituted 2-cyclohexene derivatives and their use for the control of candida infections
    Patent number: 5296503
    Abstract: The present invention relates to the use of known substituted 2-cyclohexene derivatives in the control of diseases, in particular bacterial infections and mycoses.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: March 22, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Franz Kunisch, Peter Babczinski, Dieter Arlt, Manfred Plempel
  • N-alkyl-n-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, and adhesives containing these compounds
    Patent number: 5294646
    Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
  • Heterocyclyltriazolinones and herbicidal use
    Patent number: 5294596
    Abstract: The invention relates to novel heterocyclyltriazolinones of the general formula (I) ##STR1## in which R.sup.1 represents hydrogen or represents alkyl or cycloalkyl, each of which is optionally substituted,R.sup.2 represents hydrogen, hydroxyl, mercapto or halogen or represents alkyl, alkenyl, alkinyl, cycloalkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, arylalkyl, amino or heterocyclyl, each of which is optionally substituted, andHet represents an optionally substituted heterocycle of the formula ##STR2## in which X in each case represents oxygen, sulphur, an NH group or an N-alkyl group,a process for their preparation and their use as herbicides.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilhelm Haas, Kurt Findeisen, Karl-Heinz Linker, Klaus Lurssen, Hans-Joachim Santel, Robert R. Schmidt
  • Imidazolyl-propenoic acid derivatives
    Patent number: 5294633
    Abstract: Imidazolyl-propenoic acid derivatives can be prepared by reaction of aldehydes with phosphonoacetic acid esters. The imidazolyl-propenoic acid derivatives are suitable as active substances in medicaments, in particular in hypotensive and anti-atherosclerotic medicaments.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Kramer, Jurgen Dressel, Rudolf Hanko, Walter Hubsch, Ulrich Muller, Matthias Muller-Gliemann, Martin Beuck, Stanislav Kazda, Johannes-Peter Stasch, Andreas Knorr, Stefan Wohlfeil
  • Water soluble or water dispersible polyisocyanate mixtures and their use in stoving compositions
    Patent number: 5294665
    Abstract: The present invention relates to a polyisocyanate mixture which has blocked isocyanate groups and an average NCO-functionality, based on reversibly blocked isocyanate groups, of 2.0 to 2.6, and is the reaction product, converted into the salt form by the at least partial neutralization of the incorporated carboxyl groups, ofi) at least one organic diisocyanate having a molecular weight of 168 to 300 withii) at least one monofunctional blocking agent for isocyanate groups,iii) at least one monobasic or dibasic hydroxycarboxylic acid,iv) 1 to 15 wt. %, based on the weight of component i), of at least one dihydric to hexahydric alcohol having a molecular weight of 62 to 182 andv) 50 to 500 wt. %, based on the weight of component i), of at least one diol having a molecular weight of 350 to 950 and containing ester groups.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Pedain, Heino Muller, Dieter Mager, Harald Blum, Holger Casselmann
  • Pesticidal shaped articles
    Patent number: 5294445
    Abstract: The present invention relates to pesticidal shaped articles which contain beta-cyfluthrin as active compound.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ulrich Sieveking, Wilhelm Stendel, Herbert Voege
  • Process for purification of cyclohexanone
    Patent number: 5292960
    Abstract: Cyclohexanone which has been obtained by dehydrogenation of a cyclohexanone/cyclohexanol mixture is substantially freed from by-products, in that such a dehydrogenation mixture is treated in the gas or liquid phase with hydrogen on a hydrogenation catalyst at 20.degree. to 180.degree. C. and at a pressure of 0.1 to 15 bar.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz-Peter Meier, Jan van Esbroeck, Eddy Terweduwe
  • Process for the preparation of azomethines
    Patent number: 5292953
    Abstract: Azomethines can be prepared by the condensation of cycloalkanones and anilines in the presence of acid heterogeneous catalysts, with azeotropic removal of the water of reaction, the condensation being carried out in a continuous reaction in a column-like reactor having an applied temperature profile, and the starting materials being fed in the low-temperature zone and, of the reaction products, the water of reaction to be removed as an azeotrope also being removed in the low-temperature zone and the azomethine formed being removed in the high-temperature zone.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Langer, Hans-Josef Buysch, Paul Wagner
  • Substituted mandelic acid derivatives and their use in medicaments
    Patent number: 5292769
    Abstract: Substituted mandelic acid derivatives can be prepared by reaction of glyoxylic esters with Grignard compounds. The substituted mandelic acid derivatives are suitable as active compounds in medicaments, in particular for medicaments which inhibit leukotriene synthesis.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus-Helmut Mohrs, Siegfried Raddatz, Michael Matzke, Romanis Fruchtmann, Armin Hatzelmann, Christian Kohlsdorfer, Reiner Muller-Peddinghaus, Pia Theisen-Popp
  • Optically active N-.alpha.-fluoroacryloylamino acid polymers for the resolution of racemates
    Patent number: 5292924
    Abstract: .alpha.-Fluoro-substituted N-acryloylamino acid derivatives of the formula ##STR1## are used to make polymers optionally for chromatographic resolution of racemates into their enantiomers. The fluorine atom improves performance in many instances.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Grosser, Walter Lange, Bruno Bomer, Dieter Arlt, Dietmar Bielefeldt
  • Compositions of cyclic isourea component with carboxyl component
    Patent number: 5292807
    Abstract: The present invention relates to compositions which are storage stable at room temperature and containA) at least one compound having at least two cyclic isourea groups per molecule andB) at least one compound having at least two carboxyl groups per molecule,in an amount sufficient to provide a molar ratio of isourea groups to carboxyl groups of 0.5:1 to 1.5:1.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Schafer, Hanns P. Muller, Hans-Joachim Kreuder, Manfred Bock, Knud Reuter
  • Thermoreactive recording material having particular stability
    Patent number: 5292712
    Abstract: New thermoreactive recording materials contain at least one salt of a specially modified bisphenolcarboxylic acid and are distinguished by good stabilisation of the ink, even upon extended storage time, good light stabilities and excellent stabilities to water, plasticisers, fats and substances contained in text-marking pens.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Klug, Heinrich Schrage, Pieter Ooms, Hans-Josef Buysch
  • Process for decreasing the halogen content of polyhalogenated aromatics
    Patent number: 5292975
    Abstract: When the halogen content of polyhalogenated aromatics is decreased by reaction with monohalogenated and/or non-halogenated aromatics in the gas phase, good yields and significantly improved catalyst service lives are achieved if the reaction is carried out in the presence of a catalyst and in the presence of a hydrogen halide.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Schrage, Helmut Fiege
  • Fungicidal and insecticidal substituted-heterocyclyl-acrylic esters
    Patent number: 5292889
    Abstract: Fungicidal and insecticidal substituted-heteroycylacrylic esters of the formula ##STR1## in which R.sup.1 represents alkyl, or represents unsubstituted- or substituted aralkyl,R.sup.2a represents hydrogen, dialkylamino, alkoxy or alkylthio, or represents in each case unsubstituted or substituted aralkyloxy or arylalkylthio, andR.sup.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Klausener, Dieter Berg, Thomas Seitz, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler, Ulrike Wachendorff-Neumann
  • 1-[pyri(mi)dyl-(2)]-5-hydroxy-pyrazole microbicides
    Patent number: 5292744
    Abstract: The invention relates to the use of certain 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterized by formula (I) given in the description, as microbicides for the protection of industrial materials, and to certain novel 1-[2-pyri(mi)dyl]-5-hydroxy-pyrazoles which are characterised by formula (II) given in the description.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Sasse, Michael Schwamborn, Peter Wachtler, Monika Frie, Georg-Wilhelm Ludwig, Wilfried Paulus, Hans-Georg Schmitt
  • New naphthalimides, toners containing these and the use of the new naphthalimides as additives for toners
    Patent number: 5292881
    Abstract: New naphthalimides, useful as additives in toners for controlling the charge and conductivity, of the formula ##STR1## in which R represents C.sub.1 - to C.sub.22 -alkyl,R.sup.1 and R.sup.2 independently of one another in each case represent C.sub.1 - to C.sub.4 -alkyl, or R.sup.1 and R.sup.2, together with the nitrogen atom in between, form a pyrrolidine, piperidine or morpholine ring,n represents 2 or 3 andX.sup..crclbar. represent one equivalentof a benzoate or naphthoate, which is optionally substituted by chlorine, bromine, methyl, methoxy, hydroxyl, cyano and/or hydroxycarbonyl,of a benzenesulphonate which is substituted by hydroxyl, amino or nitro,of a naphthalenesulphonate which is optionally substituted by hydroxyl, amino or a sulphonic acid group, orof a fluorine-substituted anion of a C.sub.4 - to C.sub.18 -alkanecarboxylic or -alkanesulphonic acid.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Berneth, Horst Harnisch, Roderich Raue, Jurgen-Rolf Hassdenteufel, Matthias Kocher
  • Nitro-substituted heterocyclic compounds useful as insecticides
    Patent number: 5290779
    Abstract: Nitro-substituted heterocyclic compounds of the formula (I) ##STR1## wherein R is hydrogen or alkyl,Z is an optionally substituted aryl or optionally substituted heterocyclic groun containing at least one atom selected from N, O and S,A is optionally substituted ethylene or optionally substituted trimethylene, andB stands for 2 or 3 members of a heterocyclic ring which is formed, together with the adjacent C-atom and N-aom and at least one of said members may represent a hetero atom and may be optionally substituted, provided that when B stands for 3 members, two of which are carbon atoms and the other one is a nitrogen atom which is located in the middle of the three members, then at least one of said two carbon atoms must be substituted by a xeto group. Such compounds being useful as insecticides.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: March 1, 1994
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Kozo Shiokawa, Shinichi Tsuboi, Shoko Sasaki, Koichi Moriya, Yumi Hattori, Katsuhiko Shibuya
  • Process for the preparation of a pigment suspension
    Patent number: 5290352
    Abstract: Pigment suspensions of inorganic pigments are prepare compacting and grinding the unground pigments on a roller compactor, followed by processing of the compacted pigment in a wet grinding mill with addition of water. The process as described improves the particle size distribution of the pigment.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: March 1, 1994
    Assignee: Bayer AG
    Inventors: Bernd Krockert, Gunter Linde
  • Process for preparation of high molecular weight, optionally branched polyarylene sulphides
    Patent number: 5288848
    Abstract: The invention relates to a process for the preparation of optionally branched, high molecular weight polyarylene sulphides with melt viscosities which can be established at defined values and low corrosion.These polyarylene sulphides are obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and, if appropriate, polyhalogenoaromatics, with the addition of particular monohalogenoaromatics as chain stoppers.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: February 22, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Wolfgang Ebert, Ludwig Bottenbruch, Dieter Freitag, Rolf-Volker Meyer