Patents Assigned to BASF
  • O,S-Dialkyl-O-(4-fluorophenyl)-(di)thiophosphoric acid esters, and the use thereof for combating pests
    Patent number: 4414208
    Abstract: Novel O,S-dialkyl-O-(4-fluorophenyl)-(di)thiophosphoric acid esters of the formula ##STR1## where R.sup.1 is alkyl of from 1 to 3 carbon atoms, R.sup.2 is alkyl of from 1 to 5 carbon atoms, cycloalkyl of 5 or 6 carbon atoms, alkoxyalkyl of from 2 to 7 carbon atoms or alkylthioalkyl of from 2 to 7 carbon atoms, R.sup.3 is hydrogen, halogen, alkyl of from 1 to 4 carbon atoms, haloalkyl, alkoxy or alkylthio, each of from 1 to 4 carbon atoms, cyano or nitro, R.sup.4 denotes halogen, alkyl of from 1 to 4 carbon atoms, haloalkyl, alkoxy or alkylthio, each of from 1 to 4 carbon atoms, cyano or nitro, and X is oxygen or sulfur, R.sup.4 additionally denoting hydrogen when X is sulfur or when X is oxygen and R.sup.2 is methyl, n-propyl, sec-butyl, isobutyl, tert-butyl or pentyl, which compounds are valuable pesticides.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: November 8, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Peter Loeffler, Heinrich Adolphi
  • Preparation of aqueous epoxy resin dispersions, and their use
    Patent number: 4413071
    Abstract: A process for the preparation of aqueous epoxy resin dispersions, wherein an epoxy resin having more than one 1,2-epoxide group per molecule is reacted with from 1 to 30% by weight, based on epoxy resin, of a protective colloid, containing basic nitrogen and having an amine number of from 10 to 90, in the presence of from 50 to 1,000 mole percent, relative to the amount of basic nitrogen in the protective colloid, of an acid, and in the presence or absence of one or more organic solvents, at from 50.degree. to 150.degree. C., the reaction product is dispersed by adding water, and any organic solvent present is distilled off. The novel aqueous epoxy resin dispersions are used, for example, to produce coatings.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventor: Eckehardt Wistuba
  • Pigments comprising cyanomethylquinazolones coupled to diazo compounds prepared from 1-aminoanthroquinones
    Patent number: 4412949
    Abstract: A pigment of the formula: ##STR1## wherein each of the rings A, B and C independently is unsubstituted or is substituted by one, two or three radicals which do not confer solubility, or the ring A can additionally carry a fused ring. The novel compounds of the invention are useful as pigments for coloring, printing inks, plastics, and, especially, surface coatings.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Dimroth, Wolfgang Lotsch
  • Preparation of electrically conductive polymers
    Patent number: 4412942
    Abstract: A process for the preparation of stable electrically conductive polymers, having conductivities greater than 10.sup.-2 S/cm, wherein a polyacetylene is reacted with from 1 to 100, preferably from 10 to 33, % by weight of tosylmethyl isocyanide and from 0.1 to 70, preferably from 5 to 35, % by weight of an alkali metal or its amide, or of a Lewis acid. The polymers obtained can be used in electrical engineering for the production of solar cells, for the conversion and fixing of radiation and for the production of electrical and magnetic switches and electrical storage devices, and can also be used for the antistatic treatment of plastics.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Klaus Penzien, Johannes Schlag, Petr Simak
  • Process for resist printing cellulose fibres with reactive or developing dyes
    Patent number: 4412837
    Abstract: Process for imprinting textiles made from cellulose fibers or cellulose fibers mixed with other fibers employing reactive and/or developing dyes according to the etch-resist process using printing dyes which contain per 1000 parts by weight, 10 to 100 parts by weight of one or more of the following compounds: butyl glycol, butyl diglycol, butyl triglycol, 1,2-butane diol, 2,5-hexane diol, and diethylene glycol monoethylether. This results in essentially complete penetration.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Blum, Hans D. Opitz
  • Two-layer metal-effect coating and a process for its production
    Patent number: 4413036
    Abstract: A two-layer metal-effect coating, composed of a base layer which contains metal pigments and of a clear top coating, at least the base layer being obtained from a coating agent which contains as the film-forming binder a polymer resin which was obtained by copolymerizing olefinically unsaturated compounds, wherein the polymer resin is obtained by copolymerizing(a) 1.0 to 50.0% by weight of acrylonitrile, methacrylonitrile or a mixture thereof(b) 0.1 to 10.0% by weight of a compound having 2 or more polymerizable olefinic double bonds;(c) 40.0 to 98.9% by weight of other copolymerizable compounds, and(d) up to 5% by weight cellulose ester; with the total amount of the components a, b, c and d being 100% by weight.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: November 1, 1983
    Assignee: BASF Farben & Fasern A.G.
    Inventors: Hermann-Josef Drexler, Ulrich Poth
  • Preparation of polyimide powder
    Patent number: 4413117
    Abstract: A polyimide powder particularly suitable for the production of moldings by high pressure sintering is prepared by mixing a solution of an aromatic polyimido-acid, obtained by a conventional process and having an intrinsic viscosity of 1.5 to 2.5 dl/g, in an aprotic dipolar organic solvent, with a water-entraining agent, heating the mixture to the boiling point of the entraining agent, azeotropically distilling off the water formed, filtering off the polyimide powder which precipitates, washing it if appropriate, and drying it.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Reiter, Jenoe Kovacs, Hans-Uwe Schenck
  • Color stabilized nonionic surfactants
    Patent number: 4412933
    Abstract: Color-stabilized nonionic surfactants which contain chemically bonded polyalkylene oxide groups having terminal hydroxyl groups, and in which are dissolved C.sub.4 -C.sub.8 -aliphatic dicarboxylic acids, their C.sub.1 -C.sub.4 -alkyl esters or mixtures thereof, as color stabilizers.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Klahr, Wolfgang Trieselt, Wolf-Dieter Balzer, Rainer Strickler, Dieter Stoeckigt
  • Spinel-containing electrode and process for its production
    Patent number: 4411761
    Abstract: In an electrode suitable for electrolysis of aqueous sodium chloride or potassium chloride solutions, at least the outer layer contains spinels, specifically a mixture of the individual spinels of iron and of cobalt, the weight ratio of iron spinels: cobalt spinels being from 30:70 to 90:10.The electrodes are produced by applying a powder mixture of iron spinel and cobalt spinel to a substrate by a plasma spraying process wherein argon is used as the plasma gas and the spraying energy is from 6 to 30 kW.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Roos, Hugo Boehn, Knut Bittler, Volker Kiener, Gerd Wunsch
  • Preparation of stable electrically conductive polymers
    Patent number: 4411826
    Abstract: Stable electrically conductive polymers having conductivities greater than 10.sup.-2 S/cm are prepared by heating p-doped polyacetylenes, in the absence of oxygen and moisture, for from 0.1 to 3 hours, preferably from 0.5 to 1.0 hour, at from 500.degree. to 1,100.degree. C., preferably from 550.degree. to 850.degree. C. The electrically conductive polymers obtained can be used in the electrical industry for the production of solar cells, for the utilization and fixing of radiation, for the production of electrical and magnetic switches and stores, and for the antistatic treatment of plastics.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Klaus Penzien, Johannes Schlag, Petr Simak
  • Dewatering of sewage sludges on chamber filter presses
    Patent number: 4411797
    Abstract: A process for dewatering sewage sludges, the dewatering characteristics of which have been improved by adding an organic flocculant, on a chamber filter press, wherein the greater part of the water in the flocculated sludges is removed by gravity filtration in a process step upstream of the chamber filter press, without application of a pressure difference, and the actual pressure filtration, on the chamber filter press, is only then carried out.In principle, commercial products can be used as the organic flocculant. These are water-soluble, macromolecular compounds which have been obtained by polymerization or copolymerization of acrylamide, acrylic cid and/or their salts, or of esters of acrylic acid or methacrylic acid with specifically modified alcohol components.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Bruno Sander, Klaus Hess, Peter Lintz, Walter Goesele
  • Reactivation of vanadium-containing oxidation catalysts
    Patent number: 4411818
    Abstract: A process for reactivating a vanadium-containing oxidation catalyst, wherein the catalyst is treated first at from 100.degree. to 600.degree. C., with a volatile phosphorus compound in the presence of an oxygen-containing gas, and then at from 50.degree. to 600.degree. C. with sulfur trioxide or a mixture of a volatile sulfur compound and an oxygen-containing gas.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Reuter, Kurt Blechschmitt, Friedrich Wirth
  • 1-Substituted phenyl-pyridazone herbicides
    Patent number: 4411691
    Abstract: Substituted pyridazone derivatives having a good herbicidal action, herbicides containing these compounds as active ingredients, and a process for controlling the growth of unwanted plants with these compounds.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Rohr, Hanspeter Hansen, Bruno Wuerzer, Heinz-Guenter Ceser
  • Thermoplastic molding materials
    Patent number: 4412037
    Abstract: Thermoplastic molding materials based on styrene polymers which have been made impact-resistant and on polyphenylene ethers, wherein the particles of the soft component of the styrene polymer which has been made impact-resistant have a mean diameter of more than 1 micron, and wherein the proportion of particles which have a diameter of less than 0.6 micron is not less than 40% by weight and the proportion of particles which have a diameter of from 0.6 to 3 microns is less than 3% by weight.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Brandstetter, Adolf Echte, Hermann Gausepohl, Herbert Naarmann
  • Low-foaming nonionic surfactant for machine dishwashing detergent
    Patent number: 4411810
    Abstract: Machine dishwashing detergents are disclosed containing a low-foaming nonionic surfactant having relatively low cloud point which unexpectedly provides effective detergency, foam control and good rinsing action when utilized as the sole nonionic surfactant. Dishes and other utensils are cleaned to a sparkling clean spot-free condition by the machine dishwashing detergent compositions of the invention containing conventional phosphate builders or non-phosphate builders but excluding conventional alkyl phosphate ester defoaming agents. The machine dishwashing detergent compositions of the invention are effective especially in controlling foam on washing dishes and other utensils encrusted with soils generally encountered on dishes, specifically egg and milk-derived protein soils.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Wyandotte Corporation
    Inventors: Daniel R. Dutton, Edward J. Parker, Roger A. Ott, Jay G. Otten
  • Preparation of 1-monochloroethylcarbamyl chloride
    Patent number: 4411752
    Abstract: A process for the preparation of 1-monochloroethylcarbamyl chloride by chlorinating ethyl isocyanate or ethylcarbamyl chloride. The 1-chloroethylcarbamyl chloride obtainable according to the invention is an important starting material for the preparation of 1-chloroethyl isocyanate and vinyl isocyanate and accordingly a valuable starting material for the preparation of pest control agents, dyes, drugs, textile waterproofing agents, detergents, plastics, bleaching agents and adhesives, since the said isocyanates contain, in addition to a reactive isocyanate group, an activated double bond or an activated .alpha.-carbon atom.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Koenig, Karl-Heinz Feuerherd
  • Thickening aqueous compositions with polyethers modified with alpha-olefin oxides
    Patent number: 4411819
    Abstract: Polyethers having molecular weights of about 1000 to about 75,000 modified with alpha-olefin oxides having about 12 to about 18 carbon atoms exhibit increased thickening efficiency in aqueous systems. About 1 to about 20 percent by weight based upon the weight of the polyether is required, the proportion of alpha-olefin oxide modifier varying inversely with the molecular weight of the polyether. Modified polyethers, processes for the preparation of thickened aqueous systems, and thickened aqueous compositions are disclosed. The modified polyether thickening agents of the invention are particularly useful for thickening water or water-glycol mixtures which are useful as hydraulic fluids.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: October 25, 1983
    Assignee: BASF Wyandotte Corporation
    Inventors: Edward J. Panek, Pauls Davis
  • .alpha.-Azolyl-glycol derivatives, as fungicides and plant growth regulators
    Patent number: 4411687
    Abstract: .alpha.-Azolyl-glycol derivatives of the formula ##STR1## where R.sup.1 is alkyl,R.sup.2 is alkyl or unsubstituted or substituted phenyl,R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl or unsubstituted or substituted benzyl,R.sup.4 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, arylalkyl or heteroarylalkyl or, where n=1, may also be unsubstituted or substituted aryl or heteroaryl,X is CH or N andn is O or 1,their salts and metal complexes tolerated by crop plants, their preparation, and agents containing these derivatives for controlling fungi and regulating plant growth.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Zeeh, Norbert Goetz, Eberhard Ammermann, Ernst-Heinrich Pommer
  • Preparation of alkyl-substituted benzaldehydes
    Patent number: 4411746
    Abstract: A process for the preparation of alkyl-substituted benzaldehydes by electrooxidation of alkylbenzenes using graphite anodes coated with metal oxides or with carbides.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Degner, Hans Roos, Heinz Hannebaum
  • Novel dihydropyridazinones, their preparation and therapeutic agents containing these compounds
    Patent number: 4410529
    Abstract: Novel 6-(p-acylaminophenyl)-4,5-dihydro-3(2H)-pyridazinones, whose acyl radical is derived from a cycloalkylcarboxylic acid, processes for their preparation, pharmaceutical formulations containing these compounds, and their use as drugs in thrombo-embolic disorders and as anti-hypertensives.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: October 18, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Marco Thyes, Horst Koenig, Dieter Lenke, Hans D. Lehmann, Josef Gries