Patents Assigned to BASF
  • Patent number: 5445765
    Abstract: Petroleum emulsion breakers based on alkoxylated polyethyleneimines are obtained by reacting polyethyleneimine with a molecular weight of 2,500-35,000 with 5-40 moles each of propylene oxide and ethylene oxide per ethyleneimine unit in the polyethyleneimine and are used for the demulsification of petroleum emulsions at from 10.degree. C. to 130.degree. C.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Elfers, Wilfried Sager, Hans-Henning Vogel, Knut Oppenlaender
  • Patent number: 5445724
    Abstract: Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salts, one or more inorganic acids and one or more brighteners by a procedure in which the brighteners used are phosphonium salts I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.18 -alkyl, which may be carboxyl-, C.sub.1 -C.sub.4 -alkoxycarbonyl- or cyano-substituted, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl, phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl, or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino,R.sup.4 and R.sup.5 are each hydrogen or C.sub.1 -C.sub.4 -alkyl,A is hydrogen or a group of the formula --CO--H, --CO--R.sup.6, --CO--OH, --CO--OR.sup.6, --CO--CH.sub.2 --CO--OR.sup.6, --O--CO--H, --O--CO--R.sup.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Burkhart, Alfred Oftring, Volker Schwendemann, Klaus Glaser
  • Patent number: 5445952
    Abstract: The present invention relates to a method to enhance a cell's ability to produce biotin precursors and/or biotin by deregulating at least one enzyme of the fatty acid biosynthetic pathway in the cell, preferably an enzyme that carries out an early step in the pathway. Preferably, the biotin biosynthetic pathway is also deregulated. The invention includes biotin-producing cells in which at least one enzyme of the fatty acid biosynthetic pathway is deregulated, preferably by transforming the cells with nucleic acid sequences encoding at least one of those enzymes; methods to produce such cells; and use of such cells to produce biotin.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: John W. Campbell, Alex Cheung, Christina K. Eddy
  • Patent number: 5446197
    Abstract: A method of purifying acifluorfen to achieve a purity of greater than about 85% by weight involves heating to dissolution a solution of an acifluorfen crude wet cake and at least one solvent from the group of 1,2-dichlorobenzene, monochlorobenzene, o-xylene and p-xylene, with the solution having from about 10 to about 30 weight percent of acifluorfen crude wet cake. The-solution is then cooled until crystals of purified acifluorfen form. The crystals are then filtered at a temperature within the range of from about 0.degree. to about 30.degree. C. The filtered crystals are then recovered.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: August 29, 1995
    Assignee: BASF Corporation
    Inventors: Mark Sandison, Ron Eva, Lawrence E. James
  • Patent number: 5445672
    Abstract: In laked tris- or tetracationic polymethine dyes I ##STR1## the variables have the following meanings: A is the radical of a fused-on substituted or unsubstituted benzene or naphthalene nucleus,Y is nitrogen or phosphorus,Z is --NR.sup.1 --, --O--, --S--, --C(CH.sub.3).sub.2 -- or --CH.dbd.CH--, where R.sup.1 is a radical as defined for R,D is --CX.sup.1 .dbd., --CH.dbd.CX.sup.1 --CH.dbd., ##STR2## Het.sup.e is the equivalent of a heteropolyacid anion, m is from 1 to 10, andn is 3 or 4, where (R).sub.3, X.sup.1, and X.sup.2 have the meanings set out in the specification.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Friedrich Closs, Bernhard Albert, Henning Wienand
  • Patent number: 5446199
    Abstract: A process for preparing halomethylbenzoyl cyanides IPh-CO-CN I(Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides IIPh-CO-Cl IIwith an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' ##STR1## (X=halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, CF.sub.3, C.sub.1 -C.sub.5 -alkyl-(C.sub.1 -C.sub.5 -alkyl)hydroxyimino or C.sub.1 -C.sub.5 -alkyl-(C.sub.2 -C.sub.5 -alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described.The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Isak, Thomas Wettling, Michael Keil, Bernd Wolf, Reinhard Doetzer
  • Patent number: 5446004
    Abstract: Multimetal oxide compositions which comprise, as basic constituents, the elements Mo, V, W, Cu and Ni in oxidic form in certain molar ratios, and the preparation of these multimetal oxide compositions, and their use as catalysts for the gas-phase catalytical oxidation of acrolein to acrylic acid.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Tenten, Peter Weidlich
  • Patent number: 5446067
    Abstract: Oxime ethers of the formula ##STR1## wherein m, G, R, R.sup.1, X, Y, and Z are as defined herein and fungicides containing these compounds.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Remy Benoit, Hubert Sauter, Reinhard Kirstgen, Gisela Lorenz, Eberhard Ammermann
  • Patent number: 5446193
    Abstract: There are described formazan dyes of the formula ##STR1## where m and n are each 1 or 2,Kat is the equivalent of a cation,Me is copper or nickel,X is oxygen or a radical of the formula CO-O or SO.sub.2 -O,Y is vinyl or a radical of the formula C.sub.2 H.sub.4 -Q, wherein Q is a group that is detachable under alkaline reaction conditions,E is a fiber-reactive radical,the rings A and B may be substituted and benzofused, andthe ring C may be substituted,the use thereof for dyeing or printing hydroxyl- or nitrogen-containing organic substrates, novel aminophenols and a process for preparing same.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: August 29, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Claus Marschner, Manfred Patsch
  • Patent number: 5443820
    Abstract: Esters and amides of aminomethylenecyanoacetic acid I ##STR1## where R.sup.1 and R.sup.2 are each, independently of one another, phenyl, naphthyl, biphenylyl or five- or six-membered hetaryl with one, two or three nitrogens or one oxygen or one sulfur or one nitrogen and one oxygen or one nitrogen and one sulfur, which can be benzo-fused, it being possible for these radicals to be substituted by one to three C.sub.1 -C.sub.12 -alkyl groups, C.sub.1 -C.sub.12 -alkoxy groups, halogen atoms, cyano groups, hydroxyl groups or groups of the formulae COOR.sup.3, COR.sup.3, CONHR.sup.3, OCOR.sup.3 or NHCOR.sup.3, and whereR.sup.3 is C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or phenyl,X is C.sub.2 -C.sub.30 -alkylene which can be interrupted by non-adjacent oxygens, or is C.sub.4 -C.sub.12 -alkenylene or C.sub.4 -C.sub.12 -alkynylene where the unsaturated bonds are not adjacent to the ester oxygens, or is C.sub.5 -C.sub.8 -cycloalkylene or phenylene, andY is O or NH.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: August 22, 1995
    Assignee: Basf Aktiengesellschaft
    Inventors: Martin Holderbaum, Alexander Aumueller, Hubert Trauth
  • Patent number: 5444163
    Abstract: There is described a process for preparing reactive phthalocyanine dyes with .beta.-substituted ethylsulfonyl or vinylsulfonyl groups by reacting a phthalocyaninesulfonyl chloride with amines with .beta.-substituted ethylsulfonyl or vinylsulfonyl groups with or without further amines in the presence of a heterocyclic catalyst.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: August 22, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Dornhagen, Manfred Patsch
  • Patent number: 5443721
    Abstract: Mounting assemblies for filter cartridges include a sealing bolt having a threaded shank portion for being threadably engaged with one (upper) end of an interior apertured filter cartridge support post. A head portion of the bolt allows it to be turned manually by a suitable tool to assist in threadably interconnecting the shank and post. The other (lower) end of the support post is rigidly connected (e.g., via welding) to a lower external sealing cup-flange which sealingly bears against a lower end gasket associated with the filter cartridge. The sealing bolt is further provided with an upper sealing cup-flange positioned concentrically around the shank portion immediately below the head portion of the sealing bolt. An O-ring seal is embedded in the lower surface of the head portion so as to sealingly bear against the upper sealing cup-flange when the sealing bolt is threadably tightened with respect to the support post.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 22, 1995
    Assignee: BASF Corporation
    Inventors: Maher I. Kelada, Bruce J. Siberts
  • Patent number: 5444123
    Abstract: Halogen-free flameproofed thermoplastic molding materials based on polyphenylene ethers and polystyrene containing, as essential components,A) from 5 to 92% by weight of one or more polyphenylene ethers,B) from 5 to 92% by weight of a vinylaromatic polymer andC) from 3 to 25% by weight of a flameproofing agent based onC1) from 20 to 100% by weight (based on the total amount of C) of a polymeric phosphorus compound which is obtained by polymerizing or copolymerizing one or more compounds of the following structure: ##STR1## where ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10 and R.sup.11 are each hydrogen, alkyl, cycloalkyl, aralkyl or aryl,R.sup.7, R.sup.8 and R.sup.9 are each alkylidene, cycloalkylidene, aralkylidene or arylidene,m, p, q, r, s, t, u and v are each 0 or 1,n is 0, 1 or 2,U is COO, O, S or NR.sup.9,V, W, X and Y are each O, S or NR.sup.9 andZ is O, S or NR.sup.10 R.sup.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 22, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Doris Zeltner, Norbert Niessner, Friedrich Seitz, Ranier Neumann, Stefan Seelert
  • Patent number: 5442006
    Abstract: An aqueous polymer dispersion with a solids volume concentration of at least 50% by volume is obtainable by polymerizing monomers by the method of free radical aqueous emulsion polymerization with the addition of at least one fine and at least one coarse aqueous starting polymer dispersion.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Oral Aydin, Michael Portugall, Josef Neutzner, Walter Maechtle
  • Patent number: 5441607
    Abstract: Recovery of caprolactam and of an alkali metal carbonate from distillation residues which are obtained in the purification of caprolactam and contain caprolactam and/or oligomers and/or polymers of caprolactam and also alkali metal hydroxides by(a) melting the distillation residues, the caprolactam and/or oligomers and/or polymers of caprolactam and alkali metal hydroxides,(b) continuously removing caprolactam from the melt,(c) after removing caprolactam, cooling the melt and obtaining a residue,(d) dissolving the residue thus obtained in water and(e) subjecting the aqueous solution thus obtained to combustion with the formation of an alkali metal carbonateis described.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Hugo Fuchs, Josef Ritz, Hans J. Wilfinger, David Weatherford
  • Patent number: 5442042
    Abstract: Moldings based on polyamides are surface treated with mixtures of at least 20% strength by weight aqueous hydrochloric acid with mono- or diethers of an aliphatic polyfunctional hydroxy compound in a mixing ratio of from 90:10 to 10:90% by volume.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Hartmut Zeiner, Walter Betz, Graham E. McKee
  • Patent number: 5442090
    Abstract: Radiation-curable urethane acrylate compounds containing amine and urea groups and based on di- or polyisocyanates, hydroxy compounds and amines contain secondary or tertiary amino groups which are bonded to isocyanate via hydroxyl groups and are obtainable by an addition reaction of primary or secondary amines with hydroxyacrylates.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Beck, Wolfram Weiss, Hans Renz, Alfred Lindner
  • Patent number: 5442073
    Abstract: A process for preparing alkyl 2-alkyl-4-fluoromethylthiazolecarboxylates of the formula I ##STR1## where R.sup.1 is alkyl,R.sup.2 is difluoromethyl or trifluoromethyl andR.sup.3 is alkyl,by reacting thiocarboxamides of the formula II ##STR2## where R.sup.1 has the abovementioned meaning, with alkyl 2-chloro-4-fluoroacetoacetamides of the formula III ##STR3## where R.sup.2 and R.sup.3 have the abovementioned meanings, in an aprotic solvent at below 100.degree. C. and reacting with a dehydrating agent, in the presence of a base, at below 80.degree. C. is described.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellscahft
    Inventors: Karl Eicken, Klaus Ditrich, Thomas Mueller, Oliver Wagner
  • Patent number: 5442109
    Abstract: At least 99% pure 2,2'[oxybis (methylene)]bis-2-propenoic acidCH.sub.2 .dbd.C(COOH)CH.sub.2 --O--CH.sub.2 C(COOH).dbd.CH.sub.2is prepared by hydrolyzing an ester thereof in an aqueous basic medium and then acidifying the resultant salt.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Siegmund Besecke, Harald Lauke, Andreas Deckers
  • Patent number: 5441775
    Abstract: Aqueous dispersions containA) from 20 to 90% by weight of a dispersed polymer having a glass transition temperature above 30.degree. C. andB) from 10 to 80% by weight of a tri-, tetra-, penta-or hexa(meth)acrylate of an alkoxylated, trivalent to hexavalent alcohol having a mean degree of alkoxylation of the hydroxyl groups of the alcohol, defined as the quotient of the number of alkoxy groups to the number of hydroxyl groups, ie. the functionality of the alcohol prior to the alkoxylation, of at least 0.5,the stated weights being based on the sum of A) and B).
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Beck, Gregor Ley, Erich Gulbins, Bernhard Schlarb, Edmund Keil, Matthias Lokai