Patents Assigned to BASF
  • Dye mixtures for paper stock
    Patent number: 4671799
    Abstract: Novel dye mixtures which contain dyes of the general formulae I ##STR1## and II ##STR2## in the form of the alkali metal and ammonium salts, where m and n are each 0 to 4, p and q are each 1 or 2, r is 0 or 1, m+n is 2, 3 or 4, B.sup.1 and B.sup.2 are each hydrogen or chlorine, or B.sup.1 and B.sup.2 together form part of a fused benzene ring which is unsubstituted or substituted by SO.sub.3 H, R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted lower alkyl or cyclohexyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure, and Z is a reactive radical which is usually present in reactive dyes and which is bonded to the diazo or coupling component, are very useful for dyeing paper stocks.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: June 9, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Degen, Hans Kraus
  • Apparatus for positioning objects of low mass, in particular magnetic heads
    Patent number: 4672491
    Abstract: In a memory processing unit, a magnetic-head positioning device having a longitudinally actuated carriage with a guide plate carrying the head, or heads, which plate has longitudinal edges and an upper and lower face, one of these faces being in engagement with a spool wheel driving the plate via a belt and the longitudinal edges of the guide plate being guided between a pair of anti-friction bearings. Linear, three-point contact of the guide plate with the bearings and with the spool wheel is insured, regardless of lateral displacement of the guide plate, by mounting the bearings so that they are tiltable, in a plane transverse to the longitudinal movement of the guide plate, by a limited amount.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: June 9, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Karlheinz Koenig, Lambert Kohl, Ruediger Witz, Bernd Roeger
  • Acetylene compounds, their preparation and their use for regulating plant growth
    Patent number: 4671816
    Abstract: Acetylene compounds of the formula ##STR1## where R.sup.1, R.sup.2 and X have the meanings given in the description, a process for their preparation and their use for regulating plant growth.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: June 9, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Jens-Uwe Bliesener, Manfred Baumann, Werner Hoffmann, Hubert Sauter, Johann Jung
  • Production of layer-type magnetic recording media
    Patent number: 4671969
    Abstract: Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 40% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: June 9, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: August Lehner, Werner Balz, Werner Lenz, Albert Kohl, Guenter Heil
  • Fuel cell
    Patent number: 4670360
    Abstract: In a fuel cell which has an activated carbon-containing anode and an activated carbon-containing cathode and is preferably used for the oxidative treatment of waste waters containing oxygen or oxygen-containing compounds, the cathode has been subjected to partial anodic oxidation in a mineral acid at a potential .epsilon..sub.h of from +1.3 to +10V and then doped with molybdenum(VI) and/or tungsten(VI) and/or vanadium(V) compounds, and the anode has been subjected to partial anodic oxidation in an aqueous mineral acid, cathodically reduced in an aqueous mineral acid and then impregnated with cobalt hydroxide and/or nickel hydroxide and/or copper hydroxide and/or zinc hydroxide, the anode and the cathode being separated by a porous polyelectrolyte through which the waste water flows.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Habermann, Ernst-Heinrich Pommer, Peter Hammes, Hubert Engelhardt, Wolfgang Geiger, Werner Simmler, Guenther Huber
  • 10,11-dihydro-5H-dibenzo[a,d]cycloheptadiene derivatives in a method for treating cardiac arrhythmia
    Patent number: 4670435
    Abstract: 10,11-Dihydro-5H-dibenzo[a,d]cycloheptadiene derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 have the meanings stated in the description, and their preparation are described. The novel substances are useful for the treatment of disorders.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Albrecht Franke, deceased, Claus D. Mueller, Dieter Lenke
  • Production of bipolar membranes
    Patent number: 4670125
    Abstract: A bipolar membrane is produced by fastening an anion exchange membrane to a cation exchange membrane with the aid of an ion-permeable adhesive, by a process in which an aqueous solution of a polyvinylamine is used as the adhesive, and the bipolar membrane, which consists of two ion exchange membranes and the film-like adhesive, is subjected to electrodialysis.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Mueller, Hermann Puetter
  • Oximinophosphoric acid derivatives and their use for controlling pests
    Patent number: 4670425
    Abstract: Oximinophosphoric acid derivatives of the formula ##STR1## where R.sup.1 is straight-chain or branched alkyl of not more than 4 carbon atoms, R.sup.2 is a straight-chain or branched alkoxy or alkylthio group of not more than 4 carbon atoms, straight-chain or branched alkyl or not more than 3 carbon atoms, phenyl, amino or a straight-chain alkylamino or dialkylamino radical where alkyl in each case is of not more than 4 carbon atoms, R.sup.3 is methyl or ethyl and X is oxygen or sulfur, a process for the manufacture of these oximinophosphoric acid derivatives of the formula I, and their use as pesticides.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Buerstinghaus, Karl Kiehs, Heinrich Adolphi
  • Preparation of N-.alpha.-alkoxyethylformamides
    Patent number: 4670591
    Abstract: N-.alpha.-alkoxyethylformamides of the formula ##STR1## where R is C.sub.1 -C.sub.18 -alkyl, are prepared by reacting a vinyl ether of the formulaCH.sub.2 .dbd.CH--OR (II),where R has the meaning stated in the formula I, with formamide in the presence of an acidic or basic catalyst at from -10.degree. to 150.degree. C.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Oftring, Erwin Hahn, Rolf Fikentscher
  • Irreversible optical medium for information storage, and its production
    Patent number: 4670332
    Abstract: An irreversible optical medium for storing information by local modification of the optical properties of a recording layer under the action of a light beam with an irradiance of from 0.05 to 10 nJ .mu.m.sup.2, essentially consisting of a substrate and, applied on this, a particulate recording layer from 0.01 to 10 .mu.m thick, wherein the recording layer consists of a three-dimensional arrangement of particles having a mean particle diameter of from 4 to 40 nm, and a process for its production.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Arend Werner, Hartmut Hibst, Klaus D. Schomann
  • Preparation of water-soluble polymer powders and their use
    Patent number: 4670524
    Abstract: Water-soluble polymer powders are prepared by polymerizing water-soluble ethylenically unsaturated monomers in a powder bed in the presence of polymerization initiators and water while maintaining the powder state, removing the heat of polymerization by distilling off water and circulating the reaction mixture, by a process in which water-insoluble organic peroxides which are liquid at 20.degree. C. are used alone or as a mixture with up to 50% by weight, based on the initiator mixture, of water-soluble, organic azo initiators and/or water-insoluble solid peroxy-containing compounds, as polymerization initiators.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Karlheinz Messmer, Karl Hennig, Walter Denzinger, Albert Hettche, Wolfgang Trieselt, Hans-Juergen Raubenheimer
  • Narrowing the molecular weight distribution of polytetrahydrofuran
    Patent number: 4670519
    Abstract: The molecular weight distribution of polytetrahydrofuran which has been obtained by polymerization of tetrahydrofuran using a cationic catalyst is narrowed by a process in which the polytetrahydrofuran is heated at from 80.degree. to 280.degree. C. in the presence of a bleaching earth or a zeolite as a catalyst.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventor: Herbert Mueller
  • Process for the preparation of 5,6-dihydro-2H-thiopyran-3-carboxaldehyde derivatives wherein the reactions are conducted in a high boiling mineral oil without a catalyst
    Patent number: 4670567
    Abstract: 5,6-Dihydro-2H-thiopyran-3-carboxaldehydes of the formula ##STR1## where R denotes hydrogen or methyl, are prepared by a method in which acrolein or crotonaldehyde is reacted with hydrogen sulfide in a mineral oil whose boiling point is higher than those of the starting materials and of the end product, and the 5,6-dihydro-2H-thiopyran-3-carboxaldehyde is obtained by distillation. These aldehydes are important intermediates for the preparation of some crop protection agents.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Sauerwald, Toni Dockner, Wolfgang Rohr, Gernot Reissenweber
  • Preparation of ferromagnetic chromium dioxide
    Patent number: 4670177
    Abstract: Ferromagnetic chromium dioxide is prepared by converting oxides of trivalent and hexavalent chromium under superatmospheric pressure and at elevated temperatures in the presence of water and with the addition of an antimony compound as a modifier and, if required, further additives in an amount of not more than 15% by weight, by a method in which the antimony compound is present in the form of a water-soluble salt whose anion contains one or more organic molecular moieties which are oxidized in concentrated chromic acid.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Ohlinger, Norbert Mueller, Peter Rudolf, Eugen Wettstein
  • Azolylmethylcycloalkanes, their preparation and their use as drugs
    Patent number: 4670454
    Abstract: Azolylmethylcycloalkanes of the formula I ##STR1## where A and B are identical or different and are each hydrogen, unsubstituted or halogen-substituted alkyl of 1 to 4 carbon atoms, naphthyl, hetaryl, biphenyl or phenyl, where the phenyl radical can be substituted by halogen, nitro, alkyl, alkoxy or haloalkyl, each of 1 to 4 carbon atoms, phenoxy or phenylsulfenyl, D and E are identical or different and are each hydrogen or halogen, Z is CH or N, m can be 1, 2, 3 or 4 and n can be 0, 1 or 2, their addition salts with acids and their metal complexes, and the preparation of these compounds, are described. The compounds are useful for treating disorders and for crop, wood and material protection.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Janssen, Norbert Meyer, Ernst-Heinrich Pommer, Eberhard Ammermann, Friedrich-Wilhelm Kohlmann, Walter Wesenberg, Wolfgang Heberle
  • Aminoalkylmelamines
    Patent number: 4670558
    Abstract: Preparation of amidoalkylmelamines and aminoalkylmelamines of the formula I ##STR1## where R.sup.1 is an amidoalkyl group --(CH.sub.2).sub.n --NHZ or an aminoalkyl group --(CH.sub.2).sub.n --NH.sub.2, n is from 2 to 10, preferably from 2 to 6, Z is an amino protective group and R.sup.2 and R.sup.3 independently of one another are each hydrogen or have the same meanings as R.sup.1, are prepared by a process in which a chlorotriazine is reacted with a diamine of the formula H.sub.2 N--(CH.sub.2).sub.n --NHZ, where n and Z have the above meanings, to give an amidoalkylmelamine, and, if required, the group Z is eliminated.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ebel, Wolfgang Reuther
  • Hardenable polyester molding materials
    Patent number: 4670485
    Abstract: A hardenable polyester molding material contains a mixture ofI. an ethylenically unsaturated ester or a terminally unsaturated vinyl ester,II. copolymerizable monomers,III. 6-25% by weight, based on I+II, or a graft polymer P, in which there are grafted onA. 5-95% by weight of an elastomeric polymer,B. 95-5% by weight of a polyadduct, polycondensate or acrylic polymer which contains olefinic double bonds, with or withoutC. 0-90% by weight of vinyl monomers, andIV. 5-300% by weight, based on I+II, of fibrous reinforcing agents.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Anton Hesse, Hellmut Buensch, Bernhard Czauderna
  • Preparation of (2-hydroxyethyl)-melamines and their use as modifiers in the preparation of aminoplast resins
    Patent number: 4668785
    Abstract: N,N',N"-tris-(2-hydroxyethyl)-melamine, if required, as a mixture with N-mono- and N,N'-bis-(2-hydroxyethyl)-melamine, is prepared by reacting melamine with ethanolamine in the presence of an acidic catalyst by a method in which the reaction is carried out at from 120.degree. to 250.degree. C. using an excess of ethanolamine, and the molar ratio of free ethanolamine to the sum of free and converted melamine is not permitted to fall below 4:1 during the entire reaction time, and the stated (2-hydroxyethyl)-melamines are used as modifiers in the prepartion of aminoplast resins which are suitable for laminating surfaces.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: May 26, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ebel, Wolfgang Reuther, Wolfram Weiss, Ludwig Lelgemann
  • Roll-on perfume compositions containing polyoxybutylene-polyoxyethylene copolymers
    Patent number: 4668430
    Abstract: The subject invention relates to roll-on perfume compositions containing polyoxybutylene-polyoxyethylene block copolymers having an internal polyoxybutylene hydrophobe and external polyoxyethylene hydrophiles.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: May 26, 1987
    Assignee: BASF Corporation
    Inventor: Irving R. Schmolka
  • Cyclohexane-1,3-dione derivatives and their use for controlling undesirable plant growth
    Patent number: 4668275
    Abstract: Cyclohexane-1,3-dione derivatives of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meanings stated in the description, are used for controlling undesirable plant growth.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: May 26, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Keil, Rainer Becker, Norbert Goetz, Dieter Jahn, Wolfgang Spiegler, Bruno Wuerzer