Patents Assigned to BASF
  • Oligomeric aromatic dispersing agents, method of making same, and dispersions made therefrom
    Patent number: 5041477
    Abstract: An oligomeric aromatic pigment dispersant is the reaction product of a diisocyanate and a diol or diamine. The oligomeric dispersant is comprised of at least 25 weight percent of a compound of the formula: ##STR1## wherein n is an integer of from 3 to 15, AR is a residual aromatic connecting group, DI is a residual organic connecting group, CAP is a capping moiety, and X is a residual connecting group selected from the group consisting of: ##STR2## The oligomeric aromatic dispersant has at least 3 aromatic "heads" and 2 aliphatic or rosin "tails".
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: August 20, 1991
    Assignee: BASF Corporation
    Inventor: Byron G. Hays
  • Phenylhydrazones of .beta.-ionone
    Patent number: 5041648
    Abstract: .beta.-ionone pheylhydrazones of the formula I ##STR1## where R has the meaning indicated in the description, and the preparation thereof are described. The substances are suitable or controlling diseases and as cosmetic agents.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Janssen, Hans-Heiner Wuest
  • Process for the preparation of 2-alkylamino-4-aminobenzenesulfonic acids
    Patent number: 5041631
    Abstract: A process for the preparation of 2-alkylamino-4-aminobenzenesulfonic acids by acylation of 2,4-diaminobenzenesulfonic acid followed by alkylation of the resulting 4-acylamino-2-aminobenzenesulfonic acid and, finally, removal of the acyl group by hydrolysis.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Klaus Pandl
  • Hydroformylation
    Patent number: 5041684
    Abstract: Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula IAr--SH Iwhere Ar is substituted or unsubstituted aryl.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Koeffer, Werner Bertleff, Michael Roeper
  • .alpha.-arylacrylates and fungicides containing these compounds
    Patent number: 5041618
    Abstract: .alpha.-Arylacrylates of the general formula I ##STR1## where Y is substituted or unsubstituted, alkenylene, alkynylene, O,S(O).sub.m, N, oxycarbonyl, carbonyloxy, oxycarbonylalkylene, carbonyloxyalkylene, oxyalkyleneoxy, oxyalkylene, alkyleneoxy, thioalkylene, azo, carbonylamino, aminocarbonyl or aminocarbonyloxy, andZ is hydrogen, halogen, alkyl, alkenyl, cycloalkyl, alkynyl, aryl, arylalkyl, arylalkenyl, aryloxy, aryloxyalkyl, alkoxyalkyl, haloalkyl, aryloxyalkoxy, alkoxycarbonyl, which are substituted or unsubstituted, or is a 5-membered heterocyclic structure in which two adjacent substituents may form an aromatic or heteroaromatic ring,and fungicides containing these compounds.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Siegbert Brand, Bernd Wenderoth, Franz Schuetz, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz
  • Preparation of carbonyl halides
    Patent number: 5041649
    Abstract: Carbonyl halides I ##STR1## where R.sup.1 is H, alkyl, cycloalkyl, haloalkyl or halocycloalkyl,R.sup.2 and R.sup.3 are each alkyl, cycloalkyl, haloalkyl or halocycloalkyl and may furthermore be bonded to one another to form a 5-membered to 7-membered ring andis halogen,are prepared by reacting an alkyl halide II ##STR2## with carbon monoxide under superatmospheric pressure in the presence of a catalytic amount ofa) aluminum bromide and in the presence or absence of a solvent orb) aluminum chloride or bromide and in the presence of a halohydrocarbon and a carbonyl halide of the formula IIIR.sup.4 --CH.sub.2 --CO--Hal (III)where R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl and Hal is halogen.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventor: Kaspar Bott
  • Working up reaction mixtures containing cyclohexanol cyclohexanone and cyclohexyl hydroperoxide
    Patent number: 5041682
    Abstract: Reaction mixtures which contain cyclohexanol, cyclohexanone and cyclohexyl hydroperoxide and are obtained in the oxidation of cyclohexane with molecular oxygen, or with a gas containing this, in the liquid phase are worked up by a process in which the reaction mixture is hydrogenated in the presence of a noble metal catalyst at elevated temperatures and under superatmospheric pressure, the resulting mixture is treated with an aqueous alkali metal carbonate solution, and cyclohexanol and cyclohexanone are separated off by distillation.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Hartig, Armin Stoessel, Ekhart Lucas
  • Preparation of 2,3,5-trimethyl-p-benzoquinone
    Patent number: 5041572
    Abstract: 2,3,5-Trimethyl-p-benzoquinone is prepared by oxidation of trimethylphenol with oxygen or an oxygen-containing gas in the presence of a catalyst containing a copper(II) halide in a two-phase reaction medium consisting of water and an aliphatic alcohol at elevated temperatures by a process in which the reaction is carried out in a mixture of water and a saturated aliphatic alcohol of 12 to 18 carbon atoms, having a flashpoint greater than 120.degree. C., such as 1-dodecanol, 1-tetradecanol, 1-hexadecanol or 1-octadecanol, in particular 1-dodecanol, and at from 60.degree. to 100.degree. C.Particularly good yields of TMQ are obtained if the reaction is carried out in the presence of a copper(II) halide, such as CuCl.sub.2 or CuBr.sub.2, and of an alkaline earth metal halide, in particular CaCl.sub.2 or MgCl.sub.2, or of an alkali metal halide, in particular LiCl or NaCl, as the catalyst system.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Hoercher, Barbara Jessel, Bernhard Bockstiegel, Paul Grafen, Harald Laas
  • Continuous high speed method for making a commingled carpet yarn
    Patent number: 5040276
    Abstract: A continuous, high speed (greater than 800 meters per minute) process and apparatus enable the production of a multifilament carpet yarn having a degree of filament intermixture high enough so that a standard deviation of less than 6.0 results upon conducting a Standard Yarn Streak Potential Test, as described herein. The apparatus and process allow the production of a multicolored carpet yarn which exhibits a reduced tendency to streak and an increased retention of tip definition.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Corporation
    Inventors: Andrew M. Coons, III, James P. Sullivan
  • Copper formazan reactive dyes having halotriazine ring
    Patent number: 5041540
    Abstract: Novel copper formazan reactive dyes which contain one or two chromophoric radicals derived from a copper formazan of the formula ##STR1## where R.sup.1 is hydrogen, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkoxy or chlorine, R.sup.2 is hydrogen or hydroxysulfonyl and one of the two radicals R.sup.3 and R.sup.4 is hydrogen and the other is hydroxysulfonyl or, if at least one of the two radicals R.sup.1 and R.sup.2 is hydroxysulfonyl, R.sup.3 and R.sup.4 can each at the same time also be hydrogen, and two or three halotriazine radicals as reactive system, and salts thereof, are useful for dyeing or printing hydroxyl- or nitrogen-containing organic substrates.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Pandl, Manfred Patsch
  • Aqueous secondary dispersion containing phosphate groups
    Patent number: 5041495
    Abstract: Aqueous secondary dispersions containing phosphate groups are obtainable by copolymerization of(A) 25-98% by weight of acrylates and/or methacrylates,(B) 1-10% by weight of acrylic and/or methacrylic acid,(C) 1-8% by weight of a compound of the general formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen and/or a C.sub.1 -C.sub.8 -hydrocarbon radical and Z is a straight-chain or branched C.sub.1 -C.sub.8 -alkylene, and(D) 0-60% by weight of a copolymerizable olefinically unsaturated compound, in an organic solvent, neutralization of the copolymer solution and dilution with water and, if required, removal of solvent by distillation.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: August 20, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Schwerzel, Gerhard Auchter, Eckehardt Wistuba
  • 1-halo-azolylethane derivatives and fungicides containing them
    Patent number: 5039815
    Abstract: 1-Halo-1-azolylethane derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are C.sub.1 -C.sub.8 -alkyl, phenyl, biphenyl, naphthyl, benzyl, C.sub.3 -C.sub.8 -cycloalkyl or C.sub.3 -C.sub.8 -cycloalkenyl, each of which is unsubstituted or substituted,n is an integer from 1 to 5, or 0,E is Cl or Br, andX is CH or N,their plant-tolerated acid addition salts and metal complexes, and fungicides containing these compounds.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Seele, Walter Himmele, Norbert Goetz, Eberhard Ammermann, Gisela Lorenz
  • Aqueous developer solution having hydroxy-alkyl piperidine for positive-working photoresists
    Patent number: 5039595
    Abstract: An aqueous developer solution contains, as a water-soluble basic compound, a compound of the general formula (I) ##STR1## where R.sup.1 to R.sup.5 are identical or different and are each H, OH, hydroxyalkyl, alkoxy or alkyl.It is suitable for developing positive-working photoresists.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Horst Binder
  • Based on monofunctionally initiated, polyaminoamide modified epoxy resins
    Patent number: 5039721
    Abstract: Cathodic electrocoating binders which are water-dilutable on protonation with an acid are obtainable by reactingA) an epoxy compound or a mixture of epoxy compounds having an epoxide equivalent weight of less than 2,000 withB) a compound which is monofunctional with respect to epoxides and contains aliphatic or phenolic OH groups andC) a secondary amine of 2 to 36 carbon atoms, with the proviso that the reaction product of A), B) and C) still contains free epoxy groups, andD) an amount of an amidoamine containing primary amino groups which is equivalent to or greater than the amount of these free epoxy groups, the said amidoamine being obtainable from a primary diamine and a mono- and/or dicarboxylic acid.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: August 13, 1991
    Assignee: BASF Lacke & Farben Aktiengesellschaft
    Inventors: Thomas Schwerzel, Hans Schupp, Dirk Lawrenz, Hans Oslowski, Ulrich Heimann
  • Novel benzofuran derivatives and therapeutic agents containing them
    Patent number: 5039701
    Abstract: Benzofuran derivatives of the formula I ##STR1## where R.sup.1 to R.sup.5 and X have the meanings stated in the description, and therapeutic agents containing these derivatives.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Schlecker, Manfred Raschack, Josef Gries
  • Preparation of ethylene polymers using a Ziegler catalyst system, and ethylene polymers prepared in this manner and having less odor
    Patent number: 5039765
    Abstract: High density ethylene polymers are prepared by polymerizing the monomers in the presence of a Ziegler catalyst system by a process in which the resulting solid ethylene polymer is reacted in the melt with an additive capable of binding acids by esterification. The ester-forming additives are preferably epoxide compounds.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Saive, Guido Funk, Juergen Schmidt-Thuemmes, Rainer Konrad, Peter Bauer
  • Oxide-coated carriers and preparation and use thereof
    Patent number: 5039587
    Abstract: A novel carrier which is stable and effective over long cycle times (6.times.10.sup.6 prints), has an iron oxide coating of the formula (FeO).sub.x.Fe.sub.2 O.sub.3 where x=0.1-1 and is obtained by treating steel cores (or balls) with defined small amounts of sulfuric acid of defined concentration, partial oxidation of the cores thus treated and drying at 60.degree.-150.degree. C. at .ltoreq.100 mbar.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Czech, Werner Ostertag, Detlef Schulze-Hagenest, Franz-Ulrich Schmitt
  • Anipamil for the treatment of chronic renal failure
    Patent number: 5039709
    Abstract: The use of anipamil and its salts with physiologically tolerated acids for the treatment of chronic renal failure is described.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans D. Lehmann, Rolf Kretzschmar, Laurence Chan, Robert W. Schrier
  • Preparation of pure N-vinyl-2-pyrrolidone
    Patent number: 5039817
    Abstract: Pure N-vinyl-2-pyrrolidone is prepared by treating the crude N-vinyl-2-pyrrolidone with an acid ion exchanger.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Kroker, Guenther Mueller, Ernst Hofmann
  • Continuous preparation of copolyamides from caprolactam and salt of diamine and dicarboxylic acid
    Patent number: 5039786
    Abstract: Copolyamides are prepared by a continuous process in which(a) an aqueous solution of salts of equimolar amounts of diamines and dicarboxylic acids is passed, under superatmospheric pressure and with simultaneous evaporation of water, through a tubular precondensation zone with formation of a vapor phase and a prepolymer at above the melting point of the prepolymer,(b) the vapor phase is separated from the prepolymer melt,(c) the vapor phase is separated in a column into steam and an aqueous diamine solution, and the aqueous solution containing diamines is recycled to the polymerization,(d) the prepolymer melt is mixed with molten caprolactam at polyamide-forming temperatures, and(e) the mixture of prepolymer and caprolactam is passed downward through a vertical polymerization tube at polyamide-forming temperatures and a copolyamide is obtained.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: August 13, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter Pipper, Claus Cordes, Franz Schmidt, Horst Reimann, Eckhard M. Koch