Patents Assigned to BASF
  • Herbicidal agents based on acetanilides and dichloroacetamides
    Patent number: 4272282
    Abstract: A herbicidal mixture containing a herbicidal substituted anilide and substituted dichloroacetamide as antidote therefor, is disclosed.
    Type: Grant
    Filed: July 17, 1979
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Hanspeter Hansen, Karl Eicken, Peter Plath, Wolfgang Rohr, Bruno Wuerzer
  • Photopolymerizable composition for the production of printing plates and relief plates, and the elements produced therewith
    Patent number: 4272611
    Abstract: A photopolymerizable composition for the production of water-developable printing plates and relief plates, based on a water-soluble or water-dispersible mixture, containing a photoinitiator, of(a) one or more water-soluble or water-dispersible polymers containing copolymerized N-vinylpyrrolidone units and/or one or more polymers containing vinyl alcohol units and(b) one or more olefinically unsaturated photopolymerizable monomers,which comprises, as an additive or as the sole polymer, a water-soluble modified vinyl alcohol polymer which contains from 5 to 75, especially from 10 to 60, % by weight of chemically bonded oxyethylene units. These modified vinyl alcohol polymers are in particular oxyethylated polyvinyl alcohol or hydrolyzed graft polymers of vinyl esters onto polyethylene glycols. The compositions are easier to process into printing plates and relief plates, and exhibit a long shelf life.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Vyvial, Guenter Wallbillich, Horst Trapp
  • Manufacture of magnetic recording media having a wear-resistant surface
    Patent number: 4272563
    Abstract: A process for the manufacture of wear-resistant magnetic recording media comprising a dimensionally stable base, a thin ferromagnetic metal layer, containing cobalt and/or nickel, firmly bonded thereto and a thin protective layer applied thereon. The protective layer is produced by treating the recording medium in a liquid basic medium, containing gaseous oxygen, for from 1 to 60 minutes at from 5.degree. to 70.degree. C., washing and drying the treated recording medium and then heating it in air at from 170.degree. to 300.degree. C. This method offers a particularly simple way of providing the ferromagnetic layer of the recording medium with a thin but uniform, mechanically stable and wear-resistant protective layer.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Steck, Werner Loeser, Manfred Steuerwald, Gerd Wunsch, Paul Deigner
  • (3-Nitro-4-methyl)-phenyl chloroformate and its preparation
    Patent number: 4272450
    Abstract: The novel compound (3-nitro-4-methyl)-phenyl chloroformate is prepared by reacting (4-methyl)-phenyl chloroformate with nitric acid in the presence of sulfuric acid.The novel compound (3-nitro-4-methyl)-phenyl chloroformate is a valuable starting material for the preparation of dyes and crop protection agents and in particular is an intermediate for the preparation of 3-nitro-4-methylphenol, which is reduced to 3-amino-4-methylphenol.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Scheuermann, Dieter Schneider
  • Dyeing of grain leather
    Patent number: 4272243
    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color.The two surfactants are(a) an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and(b) an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units,and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Lach, Rolf Streicher, Franz Feichtmayr
  • Silver-containing carrier catalysts, process for their manufacture, and process for the manufacture of ethylene oxide using these catalysts
    Patent number: 4272443
    Abstract: This invention concerns a new carrier catalyst, the active mass of which contains silver, a process for its manufacture and a process for the manufacture of ethylene oxide by reacting oxygen-containing gases with ethylene by using this catalyst. This carrier catalyst comprising a carrier material and a catalyst, the active mass of which is 20 to 90 percent by weight of silver, 0.005 to 5 percent by weight of lithium, and 3 to 70 percent by weight of SiO.sub.2 in free form or in the form of silicates, is extremely well suited for the manufacture of ethylene oxide by adding oxygen to ethylene.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Eckart Titzenthaler, Roland Schwen
  • Flameproofed expandable styrene polymers
    Patent number: 4272583
    Abstract: Particulate expandable styrene polymers which contain an organic bromine compound as the flameproofing agent and an organic compound possessing a labile C--C, O--O or N.dbd.N bond as the synergistic agent for flameproofing. The flameproofing agent is applied to the surface of the particles while the synergistic agent is homogeneously incorporated into the particles.The polymers can be converted to self-extinguishing foams.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Herbert Naarmann, Klaus Penzien, Heinz Weber
  • N-Sulfenylated formanilides useful as fungicides and bactericides
    Patent number: 4272551
    Abstract: New N-sulfenylated formanilides, a process for their manufacture, their use as fungicides, fungicides containing these compounds, fungicidal mixtures containing these active ingredients, a process for producing such fungicidal mixtures, and a process for combating injurious fungi with these fungicides or with fungicidal mixtures containing these compounds.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Ammermann, Sabine Thym, Ernst-Heinrich Pommer
  • Aroylureas
    Patent number: 4271171
    Abstract: Aroylureas of the formula ##STR1## where A denotes a phenyl, thienyl or pyridyl-3 radical which is mono- or polysubstituted by halogen, linear or branched alkyl of 1 to 4 carbon atoms, or linear or branched alkoxy of 1 to 4 carbon atoms, R denotes linear or branched alkyl of 1 to 4 carbon atoms or linear or branched alkoxy of 1 to 4 carbon atoms, and n denotes one of the integers 0,1 and 2, which have an insecticidal and acarididal action, and a process for combating insects and mites with these active ingredients.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Annegrit Baumann, Karl Kiehs, Heinrich Adolphi, Karl-Heinz Koenig
  • Process for securing bulk loads in motor coasters and ocean-going vessels against shifting
    Patent number: 4271231
    Abstract: Bulk loads in motor coasters and ocean-going vessels can be secured against shifting as a result of listing or pitching, by consolidating the surface layer of the trimmed bulk material by bonding the individual particles with a binder.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Hermann Pottgiesser, Walter Schlindwein
  • Carbamylbiuret-modified polyisocyanates
    Patent number: 4271087
    Abstract: A carbamylbiuret-modified polyisocyanate of the formula: ##STR1## wherein n is an integer of from about 1 to about 20; R is a divalent radical containing from about 1 to about 18 carbon atoms; and Y is a divalent radical defined hereinbelow. The compounds of the invention are useful for preparing urethane-based microcellular foams and elastomers.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: June 2, 1981
    Assignee: BASF Wyandotte Corporation
    Inventors: Donald L. Christman, Peter T. Kan
  • Isoindoline colorants
    Patent number: 4271309
    Abstract: Isoindoline colorants of the formula ##STR1## where A is hydrogen or phenyl andR is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl andthe phenyl radicals in A and R and the ring C,independently of one another, do not carry further substituents or are substituted by groups which do not confer solubility, the two A's being identical or different.In finishes, printing inks and plastics, the colorants give very deep black colorations which exhibit high lightfastness, fastness to weathering and fastness to overcoating, and have a very high infrared reflectance.
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventor: Wolfgang Lotsch
  • Novel 3,4-diaza-bicyclo[4.1.0]hept-2-en-5-ones, their preparation, and therapeutic agents containing these compounds
    Patent number: 4271163
    Abstract: 2-Aryl-3,4-diaza-bicyclo-[4.1.0]hept-2-en-5-ones, substituted in the phenyl ring, of the general formula ##STR1## their preparation, and therapeutic agents, containing these compounds, which may be used for the treatment of hypertension or of thrombo-embolic disorders.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Marco Thyes, Josef Gries, Hans D. Lehmann, Dieter Lenke, Johannes Kunze
  • Preparation of pigmentary form isoindoline
    Patent number: 4271301
    Abstract: A process for converting finely particled agglomerated crude isoindoline pigments of the formula ##STR1## where A is ##STR2## and B is the radical of an unsubstituted or substituted barbituric acid, or A and B are both such a barbituric acid radical, into tinctorially valuable pigmentary forms, wherein the crude pigment, which consists of primary particles having a mean size of .ltoreq.0.1 .mu.m, is subjected to shearing forces in water, and thereafter the aqueous suspension is heated at from 90.degree. to 160.degree. C. in the presence or absence of a surfactant and the pigment is isolated. Easily dispersible, high-hiding to extremely high-hiding pigments are obtained, which give brilliant colorations of improved lightfastness and fastness to weathering.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Lotsch, Peter Hilbert
  • Heterocyclic compounds
    Patent number: 4271303
    Abstract: Compounds of the formula ##STR1## where B is oxygen, sulfur, imino or >N--R.sup.1, the ring A may be substituted, and R, Y.sup.1 to Y.sup.4 and Z are conventional dye substituents.The compounds according to the invention give brilliant, very fast dyeings on polyesters and mass-colorations of plastics.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: June 2, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Christos Vamvakaris, Peter Neumann, Manfred Patsch
  • Optical control system for transducer positioning apparatus
    Patent number: 4270153
    Abstract: An optical control system for use with a transducer positioning apparatus of a type having a lead screw coupled to the transducer head for controllably positioning the head relative to a selected track on a recording medium, wherein the lead screw is controllably rotated by a geneva mechanism that includes a geneva wheel coupled to the head screw and a geneva driver driven by a reversible d-c motor. The optical control system includes an optical disc that rotates in correspondence with the geneva driver and that has two optical tracks, one utilized in producing an error signal that varies substantially linearly with the angular position of the disc and the other utilized in producing an engagement pulse signal whenever the pin of the geneva driver is engaged in a slot in the geneva wheel.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: May 26, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Abraham Bejerano, George J. Bennett, Harold E. Arns
  • Isolating fluorine compounds from the vapors obtained when evaporatively concentrating phosphoric acid
    Patent number: 4269609
    Abstract: Fluorine compounds which are contained in the vapors obtained when evaporatively concentrating phosphoric acid are removed by scrubbing with an aqueous solution of fluosilicic acid under reduced pressure at a temperature at which condensation of steam is substantially avoided. The aqueous fluosilicic acid solutions are injected, at a speed of from 15 m/s to 40 m/s, into the upper part of a scrubbing zone, finely dispersed over the entire cross-section of the latter. The vapors are passed through the scrubbing zone at a speed of from 5 to 30 m/s, in co-current with the fluosilicic acid solutions. The residence time of the vapors in the scrubbing zone is from 0.4 to 1.5 s. The fluosilicic acid taken off the scrubbing zone contains from 20 to 28% by weight of H.sub.2 SiF.sub.6.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: May 26, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Brunold, Peter Kroetzsch, Lothar Diehl
  • Hexahydro-1,4-oxazepines, their preparation, and drugs containing these compounds
    Patent number: 4269833
    Abstract: Novel hexahydro-1,4-oxazepines of the general formula I ##STR1## where R.sup.1 is hydrogen, or alkyl or acyl each of 1 to 4 carbon atoms,R.sup.2 is alkyl of 1 to 4 carbon atoms andR.sup.3 and R.sup.4 are identical or different and each is hydrogen or methyl, and their salts with physiologically acceptable acids, processes for their preparation, drugs which contain these compounds, and their use in therapy.The compounds may be used for the pharmacotherapy of pain of various geneses.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: May 26, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans J. Treiber, Dieter Lenke, Wolfgang Worstmann
  • 1-Acyl-2-imidazolines and their manufacture
    Patent number: 4269990
    Abstract: The invention relates to 1-acyl-2-imidazolines, processes for their manufacture, and their use as intermediates.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: May 26, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Joachim May, Horst Koenig
  • Preparation of aliphatic carbonyl compounds
    Patent number: 4270006
    Abstract: Aliphatic carbonyl compounds are prepared by an aldol condensation of carbonyl compounds R.sup.1 --CH.sub.2 --CO--R.sup.2 (I; R.sup.1 and R.sup.2 =H or C.sub.1 -C.sub.8 -alkyl) in the presence of hydrogen and of a catalyst which has both condensing and hydrogenating properties, by using a catalyst system wherein the active components are from 1 to 90 percent by weight of a noble metal of group VIII of the periodic table and from 10 to 99 percent by weight of an oxide or salt of a rare earth metal, or of a mixture of different oxides and/or salts of rare earth metals.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: May 26, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Heilen, Axel Nissen, Otto Woerz