Patents Assigned to BASF
  • Patent number: 4396418
    Abstract: N-aryl(thiol)carbamates of the formula ##STR1## where X denotes hydrogen, fluorine, bromine, iodine, alkyl, alkoxy, haloalkyl, haloalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, phenyl or benzyloxy, Y denotes hydrogen, halogen, alkyl, alkoxy, haloalkyl, haloalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, phenyl or benzyloxy, n denotes one of the integers 1 and 2, Z denotes hydrogen, halogen or trifluoromethyl, A denotes oxygen, sulfur, sulfinyl or sulfonyl, and Q denotes oxygen or sulfur, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Schirmer, Rainer Becker, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4396886
    Abstract: A process for authenticating recording media which are to be safeguarded against falsification and which possess discrete regions of an exchange-anisotropic magnetic material, by comparison of the polarity of a residual magnetization which is left over, because of the exchange anisotropy of the magnetic material, from a predetermined initial magnetization after exposure of the material to a specific temperature cycle and, subsequently, to a magnetic AC field which decreases to zero, with the polarity of a residual magnetization formed in the same way from an opposite initial magnetization, and an apparatus for carrying out the said process.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Koester, Joachim Hack, Manfred Steuerwald
  • Patent number: 4396756
    Abstract: Condensation products of aniline, a phenol or alkylated phenol and an aldehyde, especially formaldehyde, may be used as tackifiers and aging retardants for rubber, especially natural rubber.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Knut Oppenlaender, Gerhard Paulus, Hubertus Queins, Hubert Schoeppl
  • Patent number: 4396169
    Abstract: A container for two rolls of tape-like material, especially a magnetic tape cassette, includes, as braking means, two curved levers which project from the container, are connected together and can be released from outside the container.In a special embodiment according to the invention, the container is a protective holder for two rolls of tape-like material, which holder can be used in a precision cassette housing for operation on a transport apparatus. The braking means provide the greatest possible protection for the rolls of tape-like material and the material itself, which is of importance particularly in the case of thin magnetic tapes.The braking system can in principle be used for all types of magnetic tape and film cassette.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter Bettinger, Norbert Kreimes
  • Patent number: 4396415
    Abstract: Herbicide based on 1-phenyl-4-amino-5-chloro (or 5-bromo-)-pyridazone-(6) in the form of an aqueous suspension containing from 20 to 50 wt % of active ingredient, and silica and a block copolymer of propylene glycol, propylene oxide and ethylene oxide.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Gotthard Synnatschke, Walter Gueckel
  • Patent number: 4395415
    Abstract: 4-Nitro-2-trichloromethylbenzenesulfenic acid derivatives of the formula ##STR1## where R.sup.1 is nitroimidazolyl, which is substituted by alkyl, phenyl or benzyl, or R.sup.1 is S-alkyl, which is substituted by an S--S-phenyl radical, itself substituted in the phenyl moiety by nitro and trichloromethyl, or which is substituted by --O--CO--R.sup.2, where R.sup.2 is unsubstituted or substituted alkyl, unsubstituted or phenyl-substituted alkenyl, or unsubstituted or chlorine- or nitro-substituted phenyl, or monoalkylamino or dialkylamino, or unsubstituted or mono-chlorine-substituted or polychlorine-substituted aminophenyl, or R.sup.1 is --S--R.sup.3, where R.sup.3 is unsubstituted or carboxyl-substituted aryl, triazolyl, unsubstituted or alkyl-substituted thiadiazolyl, unsubstituted or alkyl-, cyano- or oxo-substituted pyridyl, or unsubstituted or alkyl-, amino-, hydroxy- or oxo-substituted pyrimidinyl, and fungicides containing these compounds.
    Type: Grant
    Filed: April 21, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Hans Ziegler, Celia J. Mappes, Ernst-Heinrich Pommer
  • Patent number: 4395273
    Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Leutner, Bernhard Purucker, Eberhard Rother, Geerd F. Juergens, Dieter Wagner
  • Patent number: 4395422
    Abstract: Spray dried vitamin E powders comprising 50 to 56 percent by weight vitamin E, 1 to 25 percent by weight hydrolyzed gelatin and 20 to 30 percent by weight caseinate. The resulting powders can be directly compressed into tablets of improved hardness and friability.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Wyandotte Corporation
    Inventors: Douglass N. Schmidt, Frank Fischetti, Jr.
  • Patent number: 4395264
    Abstract: The present invention relates to a process for coupling beta-naphthol with a diazotized amine as follows:1. (a) Dissolving a beta-naphthol in water with a strong base(b) Precipitating the beta-naphthol with a strong acid and(c) Cooling the slurry.2. Adding a diazotized amine to the beta-naphthol solution and3. Increasing the pH in two steps, first with a strong base and then with a weak base.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Wyandotte Corporation
    Inventor: George W. Fenwick
  • Patent number: 4395497
    Abstract: A process for the preparation of electrically conductive heteropolyphenylenes, wherein from 0.5 to 5 per cent by weight of an activating additive is introduced, in the absence of moisture and of oxygen, into a heteropolyphenylene of the general formula ##STR1## where X is O, S, Se, SO or SO.sub.2 and Y has one of the meanings given for X or is NH, CH.sub.2, CO or C.sub.6 H.sub.4, and n is from 2 to 250. The activating additive is preferably one of the compounds AsF.sub.5, SbF.sub.5, UF.sub.6, HClO.sub.4, NO.sup.+ SbF.sub.6.sup.-, NO.sub.2.sup.+ SbF.sub.6.sup.-, NO.sup.+ PF.sub.6.sup.-, SbCl.sub.5, NO.sub.2.sup.+ PF.sub.6.sup.-, NO.sup.+ BF.sub.4.sup.-, NO.sup.+ ClO.sub.4.sup.-, (CF.sub.3).sub.2 SO.sub.4, 2,4,6-trinitrophenol, 2,4,6-trinitrophenylsulfonic acid and 2,4,6-trinitrophenylcarboxylic acid, or is sodium, potassium, rubidium, cesium, calcium or barium or one of their amides, the latter being added, if appropriate, in tetrahydrofuran, dimethoxyglycol, anthracene, naphthalene or 2-methylstyrene.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Dieter Naegele, Klaus Penzien, Johannes Schlag
  • Patent number: 4395535
    Abstract: A process for the manufacture of condensation products of phenols and isobutyraldehyde by reacting the phenols and isobutyraldehyde at elevated temperature in a mole ratio of 0.5:1 to 1.5:1 in the presence of acid or compounds hydrolyzable to acids as catalysts, subsequent neutralization and removal of the resultant reaction water by distillation wherein the reaction products obtained in this manner are also subjected to a water-vapor distillation.
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Nieberle, Karl-Clemens Peters, Wolfgang Reuther, Heinz-Hilmar Bankowsky
  • Patent number: 4395555
    Abstract: 2-Aminopyridine derivatives are prepared by reacting a quaternary ammonium compound with malodinitrile in the presence of an alkanol, followed by reaction with ammonia in the presence of an alkanol, water and/or an ether to give aminonicotinonitrile and, if desired, then reacting this product with an alkali metal compound to give aminonicotinic acid.The 2-aminopyridine derivatives obtainable by the process of the invention are valuable starting materials for the preparation of pesticides, drugs, vitamins and dyes.
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: July 26, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf-Dieter Acker, Gerhard Hamprecht
  • Patent number: 4395393
    Abstract: An artificial blood composition comprises a perfluoro chemical, physiological saline and a polyoxybutylene-polyoxyethylene block copolymer. The block copolymer provides stable emulsions.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4394513
    Abstract: Novel N-azolylacetanilides of the formula ##STR1## where R denotes hydrogen or C.sub.1 -C.sub.4 -alkyl; R.sup.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen; R.sup.2 denotes hydrogen or methyl, R.sup.3 denotes unsubstituted or C.sub.1 -C.sub.4 -alkoxy-substituted C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkynyl or A; and A denotes N-azolylmethyl which is unsubstituted or substituted in the heterocyclic ring by from one to three radicals selected from the group consisting of methyl, methoxy and chlorine, processes for their manufacture, and their use as herbicides.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: July 19, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Wolfgang Rohr, Bruno Wuerzer
  • Patent number: 4393935
    Abstract: Gas production wells, which no longer produce gas utilizing conventional primary and secondary means of recovery, can be returned to production by treatment comprising addition of an aqueous solution of certain phosphate ester surfactants followed by successive treatment with water. Increased production also can be obtained in low-producing gas wells by similar treatment with certain phosphate ester surfactants. Subsequent to treatment of a producer well, said phosphate ester surfactant aqueous solution is forced into the formation utilizing water and said surfactant and water mixture is allowed to remain in the producing well, for an effective period of time ranging from not less than 24 hours to one month. Thereafter, conventional fluid drive means are then utilized to recover gas from the subterranean gas formation.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: July 19, 1983
    Assignee: BASF Wyandotte Corporation
    Inventor: William B. Walton
  • Patent number: 4394290
    Abstract: A process for regenerating a supported catalyst for acyloxylations, which contains palladium and/or platinum and tellurium, with or without copper, wherein copper is applied to the catalyst to be regenerated.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: July 19, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Schnabel, Hans-Martin Weitz, Rolf Fischer
  • Patent number: 4392984
    Abstract: Catalysts, for olefin oligomerization, whose active material has the empirical formula IAPO.sub.4.[P.sub.2 O.sub.5.(H.sub.2 O).sub.n ].sub.a . (XY).sub.b Iwhere A is boron, antimony, bismuth, aluminum and/or 3 equivalents of titanium, X is NH.sub.4.sup..sym. and/or an alkali metal cation and/or one equivalent of an alkaline earth metal cation, Y is one equivalent of an anion, a is 0.02-0.2, b is 0-0.05 and n is 1-3, and a process for the preparation of these catalysts.
    Type: Grant
    Filed: March 25, 1981
    Date of Patent: July 12, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Engelbach, Werner Steigleiter, Helmut Glietenberg
  • Patent number: 4393211
    Abstract: A process for the preparation of aromatic sulfohalides by reacting an aqueous solution, containing a hydrogen halide, of an aromatic diazonium halide with sulfur dioxide, wherein(a) the aqueous solution, containing the hydrogen halide, of a diazonium salt which is derived from the corresponding aromatic amine and the halogen of the desired sulfohalide is reacted with sulfur dioxide in the presence of an inert organic solvent which is immiscible or only partially miscible with water,(b) the diazonium salt is decomposed, simultaneously or subsequently, by means of a catalyst for diazonium salt decomposition and(c) the resulting reaction mixture, or the organic phase thereof after removal of the aqueous phase, is treated with an oxidizing agent.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: July 12, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Tonne, Hagen Jaedicke
  • Patent number: 4393207
    Abstract: Alkoxyalkylaminotriazine trans-etherification products are obtained by reacting an alkoxyalkylaminotriazine of the general formula ##STR1## where X is hydrogen, alkyl, phenyl, alkylphenyl or ##STR2## A and B are hydrogen, alkyl, alkenyl or ##STR3## and R and R' are hydrogen or alkyl, with from 0.1 to 6 moles, per mole of alkoxyalkylaminotriazine, of a .beta.-hydroxyaldehyde of the general formula ##STR4## where R", R"' and R"" are identical or different and each is hydrogen or alkyl or R"' and R"" together with the .alpha.-carbon atom form a cyclopentane or cyclohexane ring, and R"' and/or R"" can also be hydroxyalkyl and R"" can also be phenyl, in the presence of an acidic catalyst, and removing the alcohol resulting from the trans-etherification. The alkoxyalkylaminotriazine trans-etherification products may be used in baking finishes and acid-hardening surface coatings.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: July 12, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Hummerich, Wolfram Weiss, Franz Merger, Guenther Immel, Hans-Joachim Kraus, Karl-Clemens Peters
  • Patent number: 4393005
    Abstract: Cationic phthalocyanine dyes of the formula ##STR1## where Pc is an (m+n+p)-valent phthalocyanine radical, R.sup.1 is H or alkyl, R.sup.2 and R.sup.3 independently of one another are alkyl, hydroxyalkyl, cycloalkyl, benzyl, phenyl or tolyl, or ##STR2## is pyrrolidinyl, imidazolyl, 2-ethyl-4-methylimidazolyl, morpholinyl, piperazinyl or N'-alkylpiperazinyl, or is ##STR3## R.sup.4 is H or methyl, R.sup.5 is alkyl, hydroxyalkyl or benzyl, X.sup..sym. is one equivalent of an anion, M.sup..crclbar. is one equivalent of a cation, z is 1 or 2, p is 0 or 1, m is 0 or 1 and n is from 1 to 4, and 1<(m+n)<4, are readily or highly soluble in water and very substantive on paper, and accordingly are particularly suitable for dyeing and printing paper. Paper dyed with (I) has very good bleeding fastness, and a colorless effluent is obtained when paper is wet-end dyed.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: July 12, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Manfred Ruske, Erwin Hahn