Patents Assigned to BASF
  • Patent number: 6140541
    Abstract: Polyalkeneamines of the formula (I) ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may have different meanings, are prepared by a process in which a polyalkene epoxide is reacted with an amine and the amino alcohol is dehydrated and reduced to give the compound of the formula (I).
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Johann-Peter Melder, Gerhard Blum, Wolfgang Gunther, Dietmar Posselt, Knut Oppenlander
  • Patent number: 6140550
    Abstract: An absorbent article including a flexible, fibrous support structure or framework in a fixed shape or configuration having particles of a superabsorbent material adhered thereto with temperature softened outer support surfaces, or with an adhesive to maintain sufficient spacing between adjacent superabsorbent particles such that liquid can more freely enter the absorbent article for contact with the superabsorbent particles.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas W. Beihoffer, Anthony S. Tomlin
  • Patent number: 6139693
    Abstract: A process for recovering hexamethylenediamine (I) from a mixture (II) including(I) hexamethylenediamine,(III) hexamethyleneimine,(IV) a compound selected from 2-aminomethylcyclopentylamine and 1,2-diaminocyclohexane,(V) an imine,(VI) adiponitrile and 6-aminocapronitrileincludes distilling(a) a mixture (II) to obtain(a1) a low boiling fraction (III),(a2) a medium boiling fraction (VII) (I), (IV) and (V), and(a3) a high boiling fraction (V) and (VI),(b) a mixture (VII) to obtain(b1) an overhead product (IV), and(b2) a mixture (VIII) (I) and (V) as bottom product, and(c) a mixture (VIII) to obtain(c1) (I) as overhead product, and(c2) a bottom product (V).
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft Ludwigshafen
    Inventors: Peter Bassler, Rolf Fischer, Hermann Luyken, Alwin Rehfinger, Guido Voit
  • Patent number: 6140409
    Abstract: Halogen-free antidrip agents for thermoplastic molding materials contain polymers based on vinylaromatic monomers and having molecular weights (M.sub.w) of at least 800 000 g/mol and a narrow molecular weight distribution.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Jurgen Hofmann, Robert Weiss, Walter Heckmann, Roland Hingmann, Josef Wunsch, Graham Edmund McKee
  • Patent number: 6140272
    Abstract: 4-Benzoylpyrazoles of the formula I where:A is a group of the formula IIIa, IIIb or IV ##STR1## Q is a pyrazole of the formula II, ##STR2## useful as herbicides.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Engel, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Guido Mayer, Martina Otten, Joachim Rheinheimer, Oliver Wagner, Matthias Witschel, Ulf Misslitz, Helmut Walter, Karl-Otto Westphalen
  • Patent number: 6140387
    Abstract: Gels for thermotropic layers, obtainable by irradiating a mixture comprisinga) an uncrosslinked polymer in amounts of less than 5% by weight, based on the sum of a), b) and c),b) monomers which can be polymerized by means of free radicals, andc) water or an organic solvent, or a mixture thereof,with high-energy light.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventor: Matthias Gerst
  • Patent number: 6139596
    Abstract: The use of inorganic or organic polyacids for the treatment of inorganic fertilizers, in particular the use of the polyacids as a mixture with at least one nitrification inhibitor for the treatment of inorganic fertilizers; the use of selected pyrazole derivatives as nitrification inhibitor in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations, as well as the corresponding treated inorganic fertilizers per se; and novel pyrazole derivatives which can be used as nitrification inhibitors in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations are described.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Barth, Norbert Rieber, Randall Evan Gold, Jurgen Dressel, Klaus Erhardt, Klaus Horchler von Locquengh, Edgar Leibold, Stefan Rittinger
  • Patent number: 6140545
    Abstract: In a process for preparing alcohols by gas phase hydrogenation of carboxylic acids or esters thereof at elevated temperature and elevated pressure in the presence of catalysts consisting of or comprising, as hydrogenating components, oxides of main group VI and/or subgroup IV, the hydrogenation is carried outa) at from 250.degree. C. to 400.degree. C. and from 5 bar to 100 bar in the presence ofb) primary or secondary alcohols, the molar hydrogen/alcohol ratio being at most 800.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Merger, Shelue Liang, Rolf Fischer, Joachim Wulff-Doring
  • Patent number: 6140539
    Abstract: In a process for preparing amines, in which at least one compound containing at least one nitro group is reacted with hydrogen in the presence of a supported catalyst comprising, as catalytically active metal, nickel, if desired together with at least one metal of transition group I, V, VI and/or VIII, the reduced and stabilized supported catalyst comprises nickel crystallites having a bimodal nickel crystallite size distribution having maxima at 30-80 Angstrom and 81-150 Angstrom on a support comprising ZrO.sub.2, ZrO.sub.2 --HfO.sub.2 and/or SiO.sub.2 --ZrO.sub.2 and/or SiO.sub.2 --ZrO.sub.2 --HfO.sub.2 and in the reduced and passivated state has a nickel content of 60-80 percent by mass, an SiO.sub.2 content of 0-20 percent by mass, a ZrO.sub.2 content of 0-40 percent by mass, an HfO.sub.2 content of 0-4 percent by mass and after further reduction for one hour at 100.degree. C. has a degree of reduction of at least 70%.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Sander, Dietmar Peisker, Klaus Werner, Holger Braunsberg, Gunter Georgi, Ulrich Penzel
  • Patent number: 6139614
    Abstract: Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprisingA) a colorless coating having a refractive index n.ltoreq.1.8 andB) a colorless coating having a refractive index n.gtoreq.2.0.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Schmid, Oliver Seeger, Norbert Mronga
  • Patent number: 6140428
    Abstract: A process for the simultaneous production of dicarboxylic acids and diamines from a) polymers based on polyamides of dicarboxylic acids or their derivatives with diamines, orb) compositions containing essentially such polymers, by splitting these polymers into their monomeric constituents, comprises treating these polymers or compounds with a base in alcoholic medium, and subsequently converting the resulting dicarboxylate salts electrochemically into the corresponding dicarboxylic acids and bases.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Ursula Seeliger, Wolfgang F. Mueller, Frank Heimann, Guenther Huber, Wolfgang Habermann, Hartwig Voss, Hardo Siegel
  • Patent number: 6140273
    Abstract: 2-Benzoylcyclohexane-1,3-diones of the formula I: ##STR1## where: R.sup.1 and R.sup.2 are each hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, --OR.sup.10, --OCOR.sup.10, --OSO.sub.2 R.sup.10, --S(O).sub.n R.sup.10, --SO.sub.2 OR.sup.10, --SO.sub.2 NR.sup.3 R.sup.10, --NR.sup.10 SO.sub.2 R.sup.10 or --NR.sup.10 COR;Q is a cyclohexane-1,3-dione ring with or without substitution, which is attached in position 2;A is a group of the formula IIa, IIb or III: ##STR2## where the substituents are as defined in claim 1, and agriculturally useful salts thereof are described.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Engel, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Guido Mayer, Martina Otten, Joachim Rheinheimer, Oliver Wagner, Matthias Witschel, Ulf Misslitz, Helmut Walter, Karl-Otto Westphalen
  • Patent number: 6140542
    Abstract: Process for the continuous preparation of .alpha.- and/or .beta.-ionone or homologous compounds using concentrated sulfuric acid at temperatures from 20 to 90.degree. C.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Rheude, Ulrich Horcher, Dietmar Weller, Manfred Stroezel
  • Patent number: 6136986
    Abstract: The invention relates to a process for preparing substituted chroman derivatives of the general formula VII, ##STR1## where X is the group --CN, --COOR.sup.3, --CHO, --CH.sub.2 OR.sup.7 or --CH(OR.sup.8).sub.2,R.sup.2 is a C.sub.1 -C.sub.23 -alkyl, C.sub.2 -C.sub.23 -alkenyl, C.sub.6 -C.sub.18 -aryl or C.sub.7 -C.sub.18 -aralkyl radical,R.sup.3 is hydrogen or an optionally substituted C.sub.1 -C.sub.4 -alkyl radical,R.sup.4, R.sup.5, R.sup.6 are, independently of one another, hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,R.sup.7 is hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,R.sup.8 is a C.sub.1 -C.sub.4 -alkyl radical, or the two radicals are a C.sub.2 -C.sub.6 -alkylene radical which links the two oxygen atoms to form a cyclic acetal and is optionally branched or may carry one or two carboxyl groups, cyclohexyl or phenyl radicals,and to the novel intermediates of the process.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: October 24, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Sturmer, Kai-Uwe Baldenius
  • Patent number: 6136225
    Abstract: Polymerizable liquid-crystalline compounds of the formula IZ.sup.1 --Y.sup.1 --A.sup.1 --Y.sup.3 --M--Y.sup.4 --A.sup.2 --Y.sup.2 --Z.sup.2 IwhereZ.sup.1 and Z.sup.2 are radicals containing reactive groups via which polymerization can be effected,Y.sup.1 -Y.sup.4 are a single chemical bond, oxygen, sulfur, --O--CO--, --CO--O--, --O--CO--O--, --CO--NR--, --NR--CO--, --O--CO--NR--, --NR--CO--O-- or --NR--CO--NR--, where at least one of the groups Y.sup.3 and Y.sup.4 is --O--CO--O--, --O--CO--NR--, --NR--CO--O-- or --NR--CO--NR--,A.sup.1 and A.sup.2 are spacers having 2 to 30 carbon atoms in which the carbon chain may be interrupted by ether oxygen, thioether sulfur or by nonadjacent imino or C.sub.1 -C.sub.4 -alkylimino groups,M is a mesogenic group,R is C.sub.1 -C.sub.4 -alkyl,and compositions comprising them are distinguished by favorable liquid-crystalline phase-temperature ranges and can be used in optical display devices and in cholesteric liquid-crystalline colorants.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: October 24, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Meyer, Karl Siemensmeyer, Karl-Heinz Etzbach, Peter Schuhmacher
  • Patent number: 6136251
    Abstract: A process for preparing pigment particles of defined size and shape comprises treating a sheetlike structure having through openings of defined shape and size with a polymerizable substance or mixture of substances in such a way that the openings are filled, removing any solvent present, polymerizing the substance or substance mixture, and isolating the resulting pigment particles from the openings. The pigments are readily varied in size and shape by variation of the substrate parameters and are useful for the known pigment applications, especially coatings, paints and inks.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: October 24, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Harald Keller, Reinhold Leyrer, Tillmann Faust, Peter Schuhmacher, Karl Siemensmeyer
  • Patent number: 6136840
    Abstract: The present invention relates to a fungicidal mixture which comprisesa) a carbamate of the formula I: ##STR1## where X is CH and N, n is 0, 1 or 2 and R is halogen, C.sub.1 -C.sub.4 -alkyl and C.sub.1 -C.sub.4 -haloalkyl, it being possible for the radicals R to be different if n is 2, or a salt or adduct thereof, andb) tetrachloroisophthalonitrile II: ##STR2## in a synergistically active amount.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: October 24, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Muller, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz, Siegfried Strathmann, Maria Scherer, Klaus Schelberger, Joachim Leyendecker
  • Patent number: 6136433
    Abstract: Stabilized solution-dyed fiber is made by melting a polyamide which is amide monomers polymerized in the presence of at least one hindered piperidine compound, coloring the melted polyamide, and spinning the colored polyamide into fibers that have about 40% or better retained tenacity after 2125 kJ exposure to xenon arc radiation as per AATCC Test Method 16-1993, "Colorfastness to Light," Option E. Copper stabilizers are unnecesssary.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: October 24, 2000
    Assignee: BASF Corporation
    Inventors: Stanley A. McIntosh, Harry Y. Hu, Bobby J. Bailey, O. Keith Gannon
  • Patent number: 6136383
    Abstract: Radiation-curable preparations comprise at least one polymer which has ethylenically unsaturated double bonds and are used for the coating of mineral moldings.A process for coating mineral moldings, and also mineral moldings which have a coating cured by radiation, are also described.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: October 24, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Schwartz, Klaus Menzel, Bertold Bechert, Erich Beck, Wolfgang Reich
  • Patent number: 6136449
    Abstract: To form paint films of outstanding acid resistance, finished appearance, water resistance, adhesion and bending resistance by coating a base finishing coat and top finishing coat wet-on-wet.A method for forming a paint film by a method for forming a thermosetting paint film in which a solvent-based thermosetting base finishing coat is painted onto the surface of an object to be painted, a thermosetting top finishing coat is painted on top of this wet-on-wet, and the paint films are hardened at the same time, in which the aforementioned top finishing coat which contains as a primary resin a copolymer which is a copolymer of a vinyl monomer which has a ring structure and other vinyl monomers in which the proportion of vinyl monomer having a ring structure in the total quantity of monomers is 20-50 wt %, and the proportion of other vinyl monomer(s) is 80-50 wt %, and which has a glass transition temperature of 0-60.degree. C., a solubility parameter of 9.0-11.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: October 24, 2000
    Assignee: BASF Coatings AG
    Inventors: Kazuyoshi Furuuchi, Souichi Mori