Patents Assigned to BASF
  • Patent number: 5543416
    Abstract: Cyanoisoxazoles of the formula Ia or Ib ##STR1## where R.sup.1 is hydrogen, alkyl, cycloalkyl, phenyl; R.sup.2 is hydrogen, alkyl, cycloalkyl and R.sup.3 is alkoxy, alkyl, cycloalkyl, cycloalkenyl, alkenyl, alkynyl or phenyl, it being possible for the organic radicals mentioned under R.sup.1, R.sup.2 and R.sup.3 to be substituted in each case. The compounds of the Formula Ia or Ib are useful as herbicides.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: August 6, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter M unster, Klaus Ditrich, Gerhard Hamprecht, Matthias Gerber, Karl-Otto Westphalen, Helmut Walter, Rudolf Karl
  • Patent number: 5543433
    Abstract: Compounds of the formula I ##STR1## where X is hydrogen, halogen, alkyl, alkoxy, trifluoromethyl, cyano or nitro,Y is an amino, methylamino or dimethylamino group,Z is a group CHCH.sub.3, CHOCH.sub.3 or NOCH.sub.3,R is hydrogen or alkyl,A is hydrogen, alkyl, haloalkyl or cycloalkyl,B is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, heteroaryl, arylalkyl, heteroarylalkyl or the group ##STR2## where W is hydrogen, alkyl, alkoxy, alkylthio, alkylamino or dialkylamino, unsubstituted or substituted aryl or heteroaryl, unsubstituted or substituted aryloxy, arylthio, arylamino or aryl-N-(C.sub.1 -C.sub.6 -alkyl)amino, heteroaryloxy, heteroarylthio, heteroarylamino or heteroaryl-N-(alkyl)amino orA and B, together with the C atom whose substituents they are, are an isocyclic or heterocyclic ring which can also be quinonoid,and fungicides containing these compounds.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: August 6, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Doetzer, Hubert Sauter, Herbert Bayer, Franz Roehl, Gisela Lorenz, Eberhard Ammermann, Horst Wingert
  • Patent number: 5540663
    Abstract: Use of polyacetals containing acetaldehyde acetal units, and of mixtures of these polyacetals with fillers, for preparing compostable moldings, as coating and as adhesive, and also diapers with an outer layer comprising polyacetals containing acetaldehyde acetal units in the form of a compostable film or a compostable coating.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: July 30, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Kroner, Gunnar Schornick, Karl-Heinz Schumacher, Eckehardt Wistuba
  • Patent number: 5541032
    Abstract: Electrostatic toners contain a polymeric binder and, as a charge stabilizer, a compound of the formula ##STR1## where the ring A may be benzofused andHet.sym. is the positively charged radical of a heterocycle,L is C.sub. -C.sub.8 -alkylene,R is hydrogen, unsubstituted or substituted C.sub.1-C.sub.6 -alkyl, unsubstituted or substituted phenyl, unsubstituted or substituted hydroxyl or unsubstituted or substituted amino andAn.crclbar. is one equivalent of an anion.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: July 30, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Oftring, Bernd Burkhart, Thomas Wehlage, Rainer Dyllick-Brenzinger, Karin H. Beck
  • Patent number: 5540770
    Abstract: Luster pigments based on coated plateletlike substrates comprising nitrogen-containing metal layers and if desired additionally one or more layers consisting essentially of colorless or selectively absorbing metal oxide, are prepared and used for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: July 30, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Schmid, Norbert Mronga, Harald Ochmann, J org Adel
  • Patent number: 5540849
    Abstract: A filter for filtering particulates from a particulate-containing fluid stream passing through the filter, contains one or more flow plates, each of the flow plates having (a) one or more primary fluid flow passages; and (b) one or more particulates-collecting, eddy current-forming accumulation chambers communicating with the primary fluid flow passages; wherein the accumulation chambers are not situated in the primary fluid flow passages and, when the accumulation chambers contain particulates, the particulate-containing accumulation chambers do not impede fluid flow through the primary fluid flow passages.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: July 30, 1996
    Assignee: BASF Corporation
    Inventor: Jeffrey S. Dugan
  • Patent number: 5541185
    Abstract: 3(2H)-Pyridazinone derivatives of the general formula I ##STR1## where R.sup.1 is alkyl, R.sup.2 is hydrogen or alkyl, X is halogen, W is oxygen or sulfur and Z is a hetaryl-substituted isoxazolyl radical or a substituted or unsubstituted cyclohexyl or cyclopentyl radical, plant-tolerated salts thereof, processes for their manufacture, and their use as pesticides.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: July 30, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Leyendecker, Hans Theobald, Thomas Kuekenhoehner, Peter Hofmeister, Christoph Kuenast, Norbert Goetz
  • Patent number: 5539134
    Abstract: The preparation von N-alkanoyl-polyhydroxyalkylamines I in which ##STR1## in which Z stands for the polyhydroxyalkyl radical of a monosaccharide or oligosaccharide,R.sup.1 denotes hydrogen or C.sub.1 -C.sub.8 alkyl andR.sup.2 denotes C.sub.1 -C.sub.21 alkyl, by the reaction of polyhydroxyalkylamines of the general formula IIZ--NH--R.sup.1 (II),with alkyl carboxylates of the general formula III ##STR2## in which R.sup.3 denotes a C.sub.1 -C.sub.4 alkyl radical,in the presence of a basic catalyst, in which(a) all of the ester III is placed in the reactor and is heated to the reaction temperature, and the amine II is metered in in the form of a melt while the reaction proceeds, while alcohol R.sup.3 --OH formed is continuously removed by distillation,(b) the reaction is carried out at a temperature of from 55.degree. to 110.degree. C., and(c) the reaction is carried out in the absence of organic solvents.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: July 23, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Beate Strecker, Helmut Wolf, Gerhard Wolf, Alfred Oftring, Hans-Heinrich Bechtolsheimer, Dieter Hertel
  • Patent number: 5539009
    Abstract: Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 40 to 90 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw 3-ring oligomers of polymethylene polyphenyl polyisocyanate;(iv) 1 to 20 pbw of n-ring oligomers of polymethylene polyphenyl polyisocyanate (n being greater than 3); and(v) 1 to 10 pbw of a mixture of uretonimine with from 5 to 50 parts by weight of a propoxylated propylene glycol (b) having a number average molecular weight of between 2000 and 6000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of from 20 to 30 and a viscosity of from 50 to 500 cPs.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 23, 1996
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Steven Hicks
  • Patent number: 5539010
    Abstract: Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 40 to 90 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw 3-ring oligomers of polymethylenepolyphenyl polyisocyanate;(iv) 1 to 20 pbw of n-ring oligomers ofpolymethylene polyphenyl polyisocyanate (n being greater than 3); and(v) 1 to 10 pbw of a mixture of uretonimine with from 5 to 50 parts by weight of a propoxylated propylene glycol (b) having a number average molecular weight of between 2000 and 6000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of from 20 to 30 and a viscosity of from 50 to 500 cPs.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: July 23, 1996
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Steven Hicks
  • Patent number: 5538824
    Abstract: In a novel process for the reversible or irreversible production of an image by the imagewise action of energy on a recording layer, resulting in a pattern of surface charges which corresponds to the imagewise action of the energy, on the surface of the recording layer, the recording layer used is one which contains or consists of an organic material which solidifies in glassy form, is nonphotoconductive or only slightly photoconductive and has permanent dipoles, whereinthe pattern of surface charges is produced, without or almost without formation of free charge carriers, by reversible imagewise orientation of some or all of the permanent dipoles present in the recording layer, with the aid of an electric field applied imagewise.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: July 23, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Bach, Karl-Heinz Etzbach, Harald Fuchs, Karl Siemensmeyer, Gerhard Wagenblast
  • Patent number: 5538940
    Abstract: .beta.-Substituted cinnamic acid derivatives of the formula 1, ##STR1## where R.sup.1 is substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl, and R.sup.1 can also be chlorine or bromine,--X-- is --O--, --S--, ##STR2## m is 0 or 1, --Y is --OR.sup.4, --O--N.dbd.CR.sup.5 R.sup.6, --NR.sup.7 R.sup.8, --NR.sup.7 R.sup.8, --N(OR.sup.9)R.sup.10 or SR.sup.11, where the abovementioned substitutes R.sup.2 to R.sup.11 are substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl, and R.sup.2, R.sup.3 and R.sup.5 to R.sup.11 can be hydrogen and Z, U, V, W are defined in the specification.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 23, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hubert Sauter, Herbert Bayer, Klaus Oberdorf, Horst Wingert, Wolfgang Von Deyn, Wassilios Grammenos, Hartmann Koenig, Harald Rang, Franz Roehl, Gisela Lorenz, Eberhard Ammermann
  • Patent number: 5538939
    Abstract: Acylamino-substituted isoxazole or isothiazole derivatives of the formula I ##STR1## where X is oxygen or sulfur;R.sup.1 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or phenyl;R.sup.2 is CN, CONH.sub.2, CSNH.sub.2, or haloalkyl;R.sup.3 is hydrogen or unsubstituted or substituted alkyl or cycloalkyl;R.sup.4 is alkoxy, unsubstituted or substituted alkyl, cycloalkenyl, cycloalkyl, alkenyl or alkynyl, an unsubstituted or substituted 5-membered or 6-membered heterocyclic radical or unsubstituted or substituted phenyl;haloalkyl, alkoxy, haloalkoxy, alkylthio and/or haloalkylthio,and agriculturally useful salts of the isoxazole or isothiazole derivatives I, useful as herbicides.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: July 23, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Muenster, Ernst Schefczik, Hartmann Koenig, Matthias Gerber, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 5538972
    Abstract: The use of imidazoloquinoxalinones for the production of drugs for controlling central nervous disorders is described. The imidazoloquinoxalinones have the formula ##STR1## in which R.sup.1, R.sup.2 and X have the meanings indicated in the description.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: July 23, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Joerg Treiber, Berthold Behl, Hans P. Hofmann
  • Patent number: 5536854
    Abstract: 2-Methyl-1,4-butanediol and 3-methyltetrahydrofuran are prepared by reacting a compound of the general formula I or II ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.8 -alkyl and the formyl group of II may also be present as acetal with a C.sub.1 -C.sub.8 -alkanol, is reacted with hydrogen in the presence of copper or of a metal of groups 7 to 10 of the Periodical Table of elements or of a compound of these metals.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Weyer, Rolf Fischer, Franz Merger, Juergen Frank, Jochem Henkelmann, Hardo Siegel, Thomas Ruehl
  • Patent number: 5536691
    Abstract: Cobalt catalysts whose catalytically active material comprises from 55 to 98 wt % of cobalt, from 0.2 to 15 wt % of phosphorus, from 0.2 to 15 wt % of manganese, and from 0.2 to 15 wt % of alkali metal, calculated as oxide, in which the catalyst material is calcined in a first step at final temperatures of from 550.degree. to 750.degree. C. and in a second step at final temperatures of from 800.degree. to 1000.degree. C., and a process for the hydrogenation of organic nitriles and/or imines, in which the novel cobalt catalyst is used.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Boris Breitscheidel, Peter Polanek, Matthias Irgang, Hermann Petersen, Gerd Linden, Guido Voit, Tom Witzel
  • Patent number: 5536840
    Abstract: A process for preparing diaminopyridines of the formula ##STR1## where one of the two radicals X.sup.1 and X.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen or nitro and the other is cyano,R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl, andR.sup.5 is optionally substituted C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.4 -alkenyl or C.sub.5 -C.sub.7 -cycloalkyl,by reacting dichloropyridines of the formula ##STR2## in a first step with an amine of the formula R.sup.5 -NH.sub.2 at from 10.degree. to 80.degree. C. in the presence of a base and of an inert organic diluent and/or water, then removing the diluent and thereafter, with or without prior intermediate isolation of the reaction product, comprises carrying out the second step in a melt at from 90.degree. to 165.degree. C. and at a pH from 3.5 to 6.5 using from 1.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunther Lamm, Hermann Loeffler, Helmut Reichelt
  • Patent number: 5536831
    Abstract: Caprolactam is obtained from caprolactam-containing polymers in the presence of a base under reduced pressure by depolymerizing polymers which contain the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--] or mixtures consisting essentially offrom 50 to 99.99% by weight of a polymer containing the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]--from 0.01 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,in at least two depolymerization reactors connected in series.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Kopietz, Alan Handerman, Simon Jones, Ulrich Kalck, Claus-Ulrich Priester, Heinz Auer, Josef Ritz, Hugo Fuchs, Paul Pijl
  • Patent number: 5536884
    Abstract: A mixture suitable for use as a foam-suppressing surfactant additament in cleaning compositions for mechanized cleaning processes comprises at least two mixtures of alkoxylated alcohols IR--O--(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --H (I)where x is an average degree of ethoxylation between 1 and 12, y is an average degree of propoxylation between 1 and 15, one alkoxylated alcohol mixture carries straight-chain or branched C.sub.8 -C.sub.18 -alkyl groups as the radical R and one other alkoxylated alcohol mixture carries straight-chain or branched C.sub.10 -C.sub.20 -alkyl groups as the radical R, subject to the proviso that the two radicals R differ by at least 0.5 in the average number of carbon atoms, and the two alkoxylated alcohol mixtures present in a ratio of from 10:90 to 90:10.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Stoeckigt, Richard Baur, Horst Trapp, Johannes Perner
  • Patent number: 5536842
    Abstract: A process for purifying indigo comprises extracting an aqueous leuco indigo alkali metal salt solution with an inert solvent under oxygen-excluding conditions and conventionally regenerating the indigo by oxidation.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Manfred Gang, Reinhold Kohlhaupt