Patents Assigned to BASF
  • Process for the preparation of .alpha.-alkylacroleins
    Patent number: 4496770
    Abstract: .alpha.-Alkylacroleins are prepared by a process wherein an alkanal is reacted with formaldehyde in the presence of a secondary amine and in the presence or absence, of an acid, in the liquid phase, under superatmospheric pressure and at above 150.degree. C., for not more than 25 minutes.The .alpha.-alkylacroleins obtainable by the process are useful starting materials for dyes, drugs and pesticides.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: January 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Ekhart Lucas, Franz Merger, Friedbert Nees
  • Process for lubricating synthetic fibers
    Patent number: 4496632
    Abstract: Relates to lubricating thermoplastic synthetic fibers comprising the application to said fibers of a modified polyoxyalkylene polyol which polyol is modified by capping all of the hydroxyl groups with benzyl, aryl, substituted benzyl or aryl groups or alkyl groups having 1 to 4 carbon atoms.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: January 29, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Ronald L. Camp, Edward M. Dexheimer, Basil Thir
  • Process for coating an electrically conductive substrate
    Patent number: 4496672
    Abstract: A process for coating an electrically conductive substrate, connected as the cathode, with a cationic coating agent from an electrocoating bath and subsequently hardening the coating, is characterized in that an aqueous dispersion made from:A. cationic, synthetic resins which have been protonated with acids, contain basic groups and are in a dissolved or dispersed form andB. dispersed, finely divided, ionic plasticsis used as the cationic coating agent.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: January 29, 1985
    Assignee: BASF Farben & Fasern A.G.
    Inventors: Wolfgang Batzill, Horst Diefenbach
  • Stabilization of polyphenylene ether solutions
    Patent number: 4496679
    Abstract: A process for the preparation of high molecular weight polyphenylene ethers from alkyl-substituted monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a catalyst complex of a copper salt and an organic amine, subsequent stopping of the reaction and removal of the metal component of the catalyst by addition of chelating and/or salt-forming agents, wherein the polymer solution is treated with a compound having the general structure: ##STR1## where R.sup.2 and R.sup.3 can be identical or different and each is OH, NH.sub.2, NHR.sup.5, where R.sup.5 is alkyl or cycloalkyl, or SH, and where R.sup.1 and R.sup.4 are identical or different, being hydrogen, alkyl, cycloalkyl, aryl, carbonyl, carboxyl, carboxyalkyl or nitrile, and can be linked to form a ring, advantageously in an amount of from 0.1 to 100 mmoles and advantageously in from 1 to 20% strength aqueous solutions.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: January 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Hambrecht, Rudi W. Reffert, Adolf Echte, Johann Swoboda
  • Aqueous cationic surface-coating system and its use
    Patent number: 4495327
    Abstract: An aqueous cationic surface-coating system contains an olefinically unsaturated surface-coating binder having basic nitrogen groups, some or all of which are converted into salts with acid, a Co, Mn, Pb, Ce, Zr, Ca, Zn, Fe, Al, Cu, Ni or Cd complex, if appropriate in combination with an inhibitor and/or an initiator which supplies free radicals.This surface-coating system can be used for cathodic electrocoating or for conventional methods of surface-coating.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Uwe Schenck, Rainer Blum, Erich Gulbins, Fritz-Erdmann Kempter, Eberhard Schupp
  • Chloroacetic acid cyclohexylamides, their preparation, their use for controlling weeds and agents for this use
    Patent number: 4494983
    Abstract: Novel chloroacetic acid cyclohexylamides of the formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 have the meanings given in the description, their preparation and their use as herbicides.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: January 22, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Norbert Goetz, Bruno Wuerzer
  • Self-crosslinking heat-curable binder
    Patent number: 4495335
    Abstract: The invention relates to a self-crosslinking heatcurable binder, in particular for electropaints, which is based on an organic synthetic resin which contains primary and/or secondary and, if desired, also tertiary amino groups and esterified carboxyl groups and is water-dilutable due to partial or complete neutralization with acids. The esterified carboxyl groups are activated in the alcohol component by a substituent which induces a negative inductive effect.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Farben & Fasern AG
    Inventors: Michael Geist, Horst Diefenbach
  • Aerosol gel
    Patent number: 4495168
    Abstract: A pressurized composition in an aerosol container and adapted to form a spray upon release of pressure therefrom which composition is a liquid inside the container and forms a gel on contact with living tissue comprising water, propellant and a polyoxyethylene-polyoxybutylene copolymer. The preferred composition also includes a volatile solvent and may advantageously include a skin treating agent, and conventional adjuvants.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Acicular ferromagnetic chromium dioxide particles
    Patent number: 4495246
    Abstract: Acicular ferromagnetic chromium dioxide particles having a pH greater than 4 and a process for their preparation.
    Type: Grant
    Filed: October 27, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Steck, Jenoe Kovacs, Norbert Mueller, Helmut Jakusch
  • Aerosol gel shaving cream
    Patent number: 4495169
    Abstract: A pressurized shaving cream composition in an aerosol container and adapted to form a spray upon release of pressure therefrom which composition is a liquid inside the container and forms a gel on contact with living tissue comprising water, volatile solvent, propellant and a polyoxyethylene-polyoxypropylene copolymer. The preferred composition also includes a volatile solvent and may advantageously include a treatment agent and conventional additives.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Preparation of o,o'-dithiodibenzoic acids
    Patent number: 4493802
    Abstract: o,o'-Dithiodibenzoic acids are prepared by a process wherein a diazotized anthranilic acid or anthranilate is reacted with sulfur dioxide in the presence of an acid, water and a copper salt, and if desired in the presence of an alkali metal iodide, in a 1st stage at from 20.degree. to 50.degree. C. and then in a 2nd stage at from 80.degree. to 100.degree. C.The o,o'-dithiodibenzoic acids obtainable by the process of the invention are useful starting materials for the preparation of crop protection agents, dyes and drugs.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: January 15, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hagen Jaedicke, Peter Tonne
  • Impact-resistant thermoplastic molding material
    Patent number: 4493922
    Abstract: An impact-resistant thermoplastic molding material, containing polystyrene as the matrix, and, dispersed therein, two elastomeric polymers or copolymers I and II composed entirely or predominantly of 1,3-dienes and containing particles of different mean size, namely, in I, particles from 0.2 to 0.6 .mu.m in size and having capsule particle morphology, and, in II, particles from 2 to 8 .mu.m in size, having cell particle or coil particle morphology.
    Type: Grant
    Filed: January 25, 1984
    Date of Patent: January 15, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Echte, Hermann Gausepohl
  • Method of separation by fractional crystallization from a liquid mixture
    Patent number: 4493719
    Abstract: A method of separation by fractional crystallization from a liquid mixture in which the liquid mixture is repeatedly passed in turbulent flow through an indirectly cooled crystallization zone, which must be kept full. The liquid remaining after deposition of a layer of crystals on the wall of the crystallization zone is removed, whereupon the surface of the layer of crystals is washed and the crystals are melted by passing a melt of similar compositions to that of the layer of crystals through the crystallization zone. During crystallization the melt is maintained at the temperature of crystallization and crystallization is stopped when the frozen fraction is from 70 to 98%.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: January 15, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Wintermantel, Dieter Stockburger, Hugo Fuchs
  • Water-based hydraulic fluids having improved lubricity and corrosion inhibiting properties
    Patent number: 4493780
    Abstract: In accordance with the instant invention, a water-based hydraulic fluid, having improved anti-wear and corrosion inhibition properties can be obtained by blending neodecanoic acid with a conventional water-based hydraulic fluid composition.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: January 15, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Ellen S. Schwartz, Cline A. Tincher
  • Process for producing sheet-like structures from vinyl alcohol polymers
    Patent number: 4493807
    Abstract: A sheet-like structure is produced from a vinyl alcohol polymer by a method wherein, in a self-cleaning multi-screw extruder, the polymer is mixed with a small amount of water, the mixture is melted, homogenized, devolatilized and finally extruded as a melt, and the extrudate is shaped in a conventional manner into the sheet-like structure.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 15, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Vyvial, Christof Taubitz, Lothar Schlemmer, Gerhard Bleckmann, Manfred Zuerger, Heinrich Krieger, Heino Thiele
  • Preparation of tertiary alcohols
    Patent number: 4493801
    Abstract: Tertiary alcohols are prepared by oxidizing tertiary aldehydes with oxygen at elevated temperatures.The tertiary alcohols prepared in this way are valuable and versatile intermediates for dyes, drugs and crop protection agents and are used, for example, in the preparation of agrochemicals.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: January 15, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Gerhard Nestler
  • Halogenated 1-hydroxypyrazoles and their use as pesticides
    Patent number: 4492689
    Abstract: 1-Pyrazolyl-phosphoric acid esters of the formula ##STR1## their preparation and use as crop protection agents, and their immediate precursors, i.e. halogenated 1-hydroxypyrazoles of the formula ##STR2## where R.sup.1 to R.sup.5, X and Y have the meanings given in the claims and description.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: January 8, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Rieber, Heinrich Boehm, Heinrich Adolphi
  • Preparation of primary amines
    Patent number: 4492804
    Abstract: Saturated primary amines are prepared by reacting a nitrile with hydrogen at elevated temperature under superatmospheric pressure in the presence of ammonia and a metallic iron catalyst which has been obtained by reducing anisometric iron oxide particles with hydrogen at not more than 500.degree. C.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: January 8, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Frank, Peter Rudolf, Gerald Neubauer, Paul Duffner, Manfred Ohlinger, Hans J. Wilfinger, Emil Pfannebecker
  • Process and apparatus for the safe supply of molecular oxygen or of gas containing molecular oxygen to an oxidation of hydrocarbons
    Patent number: 4491674
    Abstract: A process for the safe supply of molecular oxygen or gas containing molecular oxygen to an oxidation of hydrocarbons in the liquid phase, wherein, immediately before the point of entry into the liquid hydrocarbon, the oxygen, or gas containing oxygen, to be supplied is at least 20.degree. C. colder than the hydrocarbon, and wherein, as soon as the oxygen, or gas containing oxygen, which is to be supplied exceeds the predetermined temperature at the supply orifice, the supply ceases.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: January 1, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Rieber, Hans Hellbach, Gerhard Hunziker, Guenter Mueller
  • Finishing leather or a synthetic leather substitute
    Patent number: 4491612
    Abstract: Leather or a synthetic leather substitute is finished by applying a bottoming based on an aqueous acrylic resin dispersion, drying the coating and then applying a season containing an aqueous styrene/acrylate dispersion, by a process wherein the dispersion used in the bottoming procedure comprises one or more copolymers (a) which contain, as copolymerized units, from 30 to 85% by weight of a C.sub.2 -C.sub.6 -alkyl acrylate or methacrylate, from 1 to 8% by weight of a carboxyl-containing monomer and from 7 to 65% by weight of one or more monomers, which are copolymerizable with the above monomers, from the group comprising acrylonitrile, acrylamide, methacrylamide, vinyl chloride, vinyl acetate and styrene, the percentages being based on the copolymer, and a copolymer (b) which contains, as copolymerized units, from 50 to 90% by weight of vinylidene chloride, from 10 to 50% by weight of a C.sub.2 -C.sub.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: January 1, 1985
    Assignee: BASF Aktiengesellschaft
    Inventor: Karl Fischer