Patents Assigned to BASF
  • Patent number: 4463007
    Abstract: 1,2,4-Triazolo[1,5-c]-quinazolinones of the general formula I ##STR1## and their pharmaceutically tolerated salts, processes for their preparation and pharmaceutical formulations which contain these compounds and are useful drugs in the treatment of allergic disorders.
    Type: Grant
    Filed: November 15, 1982
    Date of Patent: July 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Schlecker, Ludwig Friedrich, Dieter Lenke
  • Patent number: 4462997
    Abstract: 3-Fluorophenyl (di)thiophosphates of the formula ##STR1## where R.sup.1 is alkyl of 1 to 3 carbon atoms, R.sup.2 is alkyl or haloalkyl of 1 to 5 carbon atoms, alkoxyalkyl or alkylthioalkyl of 2 to 8 carbon atoms or cycloalkyl of 3 to 6 carbon atoms, R.sup.3, R.sup.4 and R.sup.5 independently of one another are each hydrogen, halogen, cyano, nitro, alkyl, alkoxy or alkylthio of 1 to 6 carbon atoms and X is oxygen or sulfur, a process for their preparation, and their use for controlling pests.
    Type: Grant
    Filed: August 24, 1982
    Date of Patent: July 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Seufert, Hans-Peter Loeffler, Heinrich Adolphi
  • Patent number: 4462832
    Abstract: The abrasiveness of a pigment or printing ink is reduced by incorporation of one or more finely divided substances which are insoluble in printing inks and have a Mohs hardness of from 4.5 to 8, suitable compounds being iron powder, compounds of iron, zirconium, silicon and magnesium, aluminum silicates, oxides of manganese, tin and cerium, or mixtures of these. The printing inks obtained cause substantially less, or virtually no, abrasion of gravure printing cylinders.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: July 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Jettmar, Hans Olschner, Helmut Junge
  • Patent number: 4461832
    Abstract: A process for the preparation of an enzymatically active formulation embedded in silica gel, wherein an aqueous mixture of an enzymatically active formulation and a dissolved alkali metal silicate and/or ammonium silicate is suspended in an organic, water-immiscible fluid and then converted to a water-insoluble gel.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: July 24, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Chung-Ji Tschang, Heinrich Klefenz, Axel Sanner, Wolfgang Zahn
  • Patent number: 4461721
    Abstract: A wood preservative based on an aqueous mixture of boric acid and a water-soluble organic amine, which mixture additionally contains sodium polyborate or a mixture of boric acid and borax.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: July 24, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Reimer Goettsche, Hans-Norbert Marx
  • Patent number: 4461880
    Abstract: Surface-coating binders based on a copolymer which contains tertiary amino groups, blocked isocyanate groups, hydroxyl groups and ether groups and which, due to partial or complete salification with an acid, is water-soluble or water-dispersible.The copolymer contains, as copolymerized units, an olefinically unsaturated compound possessing a tertiary amino group, an N-(alk-1-enyl) isocyanate blocked with a CH-, OH- or NH-acidic blocking agent, and an adduct of an epoxy resin based on bisphenol A and epichlorohydrin, andhaving a molecular weight of from 380 to 3,500, with an olefinically unsaturated alcohol of 3 to 20 carbon atoms, and with an olefinically unsaturated carboxylic acid of 3 to 20 carbon atoms, with or without one or more other copolymerizable olefinically unsaturated compounds, and has a mean molecular weight of from 1,000 to 20,000.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: July 24, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Gimpel, Volker Schwendemann, Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4461327
    Abstract: A process and device for charging a plurality of tubes in a tube reactor with granular solids, preferably with catalysts, which, for this purpose, are fed from one or more stock vessels to a controllable metering device and from there, via guiding and directing devices and flexible hose connections, successively into the tubes to be filled, wherein, during the packing of the tubes, a stream of gas of constant amount is generated, which can, after an individual tube has been packed, be passed temporarily, via one or more controllable valves, through this packed tube, a pressure drop measurement being carried out at the same time and the differential between the measured value and the predetermined intended value being used to determine a small additional amount of packing material which is subsequently introduced into the tube which has been subjected to measurement, and wherein thereafter a program control triggers the mechanical packing of the next tube, metered in the same manner, with subsequent pressure d
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: July 24, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Magin, Franz Nenninger, Gerd-Juergen Engert
  • Patent number: 4460486
    Abstract: The process and polyoxyalkylene compound prepared by reacting 4,4'-thiodiphenol with at least one alkylene oxide in the presence of a base catalyst.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: July 17, 1984
    Assignee: BASF Wyandotte Corporation
    Inventor: David D. Newkirk
  • Patent number: 4460764
    Abstract: In the preparation of a high molecular weight polyphenylene ether from a monohydric phenol by an oxidative coupling reaction with oxygen in the presence of a catalyst complex obtained from a metal salt and an organic amine and in the presence of a solvent, and isolation of the metal ion component of the catalyst from the polyphenylene ether solution by means of a complex-forming or chelate-forming compound, the catalyst is removed by a method wherein complex formation and isolation of the metal ion component of the catalyst are carried out in an aqueous medium in the presence of from 0.1 to 5,000 mg of an anionic or non-ionic surfactant.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: July 17, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudi W. Reffert, Juergen Hambrecht, Adolf Echte, Hans H. Schuster, Hermann Dreher
  • Patent number: 4460796
    Abstract: Polytetramethylene etherglycols are purified by treating the alkaline catalysts with orthophosphoric acid in an equivalence ratio of from 1.5 to 2.5:3 and then separating off the inorganic salts formed.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: July 17, 1984
    Assignee: BASF Aktiengesellschaft
    Inventor: Herbert Mueller
  • Patent number: 4459297
    Abstract: Diphenyloxadiazinediones of the formula (I) ##STR1## where R.sub.1 is CH.sub.3, F, Cl or Br, R.sup.2 is H, F or Cl and R.sup.3 to R.sup.8 are H, F, Cl, Br, CH.sub.3, CF.sub.3, --OCF.sub.3, --OCHF.sub.2, OCF.sub.2 CHClF, --OCH.sub.3 or --OC.sub.2 H.sub.5, their preparation and their use, especially as insecticides and acaricides.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Arno Lange, Karl Kiehs, Heinrich Adolphi
  • Patent number: 4459233
    Abstract: A process for purifying crude organic pigments, wherein the crude pigment is suspended in a mixture of two organic liquids which are partially or completely immiscible with one another, the suspension is mixed at 50.degree.-180.degree. C. until equilibrium has been reached, the phases are allowed to separate, the phase containing the impurities (i.e. the first liquid) is separated off and the purified pigment is isolated from the other phase (i.e. the second liquid).Finely divided crude pigments can, directly after purification, be converted, while in the second liquid, into pigmentary forms.The process gives pigments of high purity, which after conversion into pigmentary forms give deep, brilliant colorations.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Fabian, Rudolf Polster
  • Patent number: 4459388
    Abstract: A process for the preparation of water-emulsifiable polyethylene by oxidizing high density polyethylene, at below the softening point of the polyethylene, in the presence of oxygen, wherein the oxidation is carried out in a fluidized bed reactor, using a polyethylene which beforehand has been heated, with exclusion of oxygen, in the presence of a compound which forms free radicals.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Albert Hettche, Stefan Weiss, Peter Miederer, Lutz Goethlich, Juergen Ciprian
  • Patent number: 4459238
    Abstract: N-Arylthiolcarbamates for the formula ##STR1## where R denotes methyl or ethyl, X denotes halogen, Y denotes alkyl, haloalkyl of at least 2 carbon atoms, alkoxyalkyl, cycloalkyl, alkoxy or halomethoxy, and n denotes one of the integers 1 and 2, herbicides containing these compounds, and their use as herbicides.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Schirmer, Karl-Heinz Koenig, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4459373
    Abstract: The invention relates to pre-expanded plastic beads based on poly-para-methylstyrene with the following properties:(a) the bead size lies between 0.2 and 3 cm,(b) the thermal stability, measured in accordance with DIN 53,424 is above 110.degree. C., and(c) the bulk density is below 35 g/l.The corresponding expandable plastic beads are prepared through the polymerization of para-methylstyrene in an aqueous suspension with the addition of volatile organic blowing agents during or after polymerization, whereby polymerization occurs in the presence of molecular-weight-regulating substances. Typical molecular-weight-regulating substances are organic chain transfer agents with a transfer constant K between 0.1 and 50, said agents being added in amounts ranging from 0.1 percent by weight to 1 percent by weight when a yield ranging from 20 to 95 percent is reached. Oligomers of the styrene or para-methylstyrene in quantities from 0.1 percent by weight to 10 percent by weight may also be employed.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Isidoor De Grave, Rupert Schick
  • Patent number: 4459301
    Abstract: Bispidine derivatives of the formula I ##STR1## where R is hydrogen or amino, and their salts with physiologically tolerated acids. The compounds possess antiarrhythmic properties.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz Binnig, Claus D. Mueller, Manfred Raschack, Gerda von Philipsborn
  • Patent number: 4459404
    Abstract: 5-Amino-tetrazole derivatives of retinoic acids and their physiologically tolerated salts, processes for their preparation and pharmaceutical formulations which contain these derivatives and salts and which may, in particular, be used in the treatment of dermatoses.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz-Frieder Frickel, Axel Nuerrenbach
  • Patent number: 4459379
    Abstract: An aqueous film-forming binder dispersion or emulsion for use as a rapid-hardening coating and which may contain plasticizers, flatting agents, fillers, pigments, additives and assistants contains at least one acrylate polymer having a film-forming temperature of above 60.degree. C. and at least one unsaturated polyester resin. It is used for producing rapid-hardening coatings on surfaces of various materials.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: July 10, 1984
    Assignee: BASF Farben & Fasern AG
    Inventor: Gunther Schwarz
  • Patent number: 4459236
    Abstract: 1-Alkenyl isocyanates are prepared by reacting aldehydes with carbamates to give N-(1-alkenyl)-carbamates and splitting these compounds at elevated temperatures. The 1,2-unsaturated isocyanates obtained are valuable starting materials for the preparation of pest control agents, dyes, drugs, textile water repellents, detergents, plastics, bleaches and adhesives, since they possess an activated double bond or an activated .alpha.-carbon atom, in addition to a reactive isocyanate group.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Hans-Martin Hutmacher, Friedrich Towae
  • Patent number: 4459348
    Abstract: A multi-layer element for the production of printing plates and relief plates which is based on an elastomeric polymer binder and is firmly anchored to a polyester base by means of an adhesive layer. The adhesive layer consists of a thermally hardened mixture which is insoluble in aromatic hydrocarbon solvents or aliphatic halohydrocarbon solvents and contains (c1) from 90 to 40% by weight, based on the sum of (c1) and (c2), of an hydroxyl-containing polyurethane, hydroxyl-containing epoxy, hydroxyl-containing phenoxy resin, polyester-ol or polyether-ol resin which has been hardened and crosslinked with isocyanate, and which has from about 4 to 20% by weight, based on the non-crosslinked and hardenable resin, of free OH groups before hardening and crosslinking with isocyanate, and (c2) from 10 to 60% by weight, based on the sum of (c1) and (c2), of an OH-free polycarbonate which is compatible with the resin (c1) before the latter is hardened and crosslinked.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Mong-Jon Jun, Peter Richter, Helmut Barzynski