Patents Assigned to BASF
  • Manufacture of 2,6,6-trimethyl-cyclohex-2-en-1-one
    Patent number: 4081482
    Abstract: 2,6,6-Trimethyl-cyclohex-2-en-1-one is manufactured by reacting ethyl isopropyl ketone with acrolein in an organic solvent in the presence of a strong organic acid at from 40.degree. to 150.degree. C.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: March 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Baumann, Werner Hoffmann
  • Pinane derivatives
    Patent number: 4081477
    Abstract: Pinanes substituted by a group X in the 3-position which group is formyl, or its alkyl-acetals or alkyl-hemiacetals, carboxylic acid, carboxylic acid chloride, carboxylic acid amide, hydroxymethyl or aminomethyl substituted in a specific manner at the nitrogen, the optical isomers of these compounds and a process for their manufacture by hydroformylation of .alpha.-pinene in the presence of rhodium catalysts, and conversion of the 3-formylpinane first produced into the above derivatives by conventional methods.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: March 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hoffmann, Walter Himmele, Joachim Paust, Karl Von Fraunberg, Hardo Siegel, Sigberg Pfohl
  • Polyesters of N,N-bis(hydroxyalkyl) taurine salts as antistatic agents for synthetic polymers
    Patent number: 4080315
    Abstract: Shaped objects including synthetic polymeric fibers with improved antistatic properties are prepared by incorporation therein about 1 to about 15% of a polyester antistatic agent prepared by reacting an N,N-bis(hydroxyalkyl) taurine salt with an organic polycarboxylic acid. Incorporation of the polyester into a synthetic polymer is accomplished by the process of preparing a melt or solution of the synthetic polymer and the polyester and extruding from the melt or casting from the solution to provide films, fibers and other molded objects exhibiting antistatic properties. A process for the preparation of the polyester antistatic agents of the invention, and for the preparation of the N,N-bis(hydroxyalkyl) taurine salts is also disclosed.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: March 21, 1978
    Assignee: BASF Wyandotte Corporation
    Inventor: Robert Bernard Login
  • Glass-fiber-reinforced thermoplastic molding compositions showing improved flowability and toughness
    Patent number: 4080349
    Abstract: Glass-fiber-reinforced thermoplastic molding compositions showing improved flowability and toughness and containing from 0.1 to 2% by weight, based on the total mixture, of a low molecular weight polyolefin wax to which from 2 to 50% by weight of polar side chains have been grafted.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: March 21, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Wurmb, Dietrich-Wolfgang Mueller, Hans Georg Dorst, Klaus Bronstert, Rainer Theysohn
  • Thermoplastic polybutylene terephthalate molding compositions
    Patent number: 4080360
    Abstract: Thermoplastic polybutylene terephthalate molding compositions of improved stability due to the presence of from 0.01 to 10 percent by weight, based on the total molding composition, of a lactam derivative.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: March 21, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Schlichting, Peter Horn, Johannes Schlag
  • Accumulator equipped with cathodes of manganese dioxide or lead dioxide
    Patent number: 4079174
    Abstract: Accumulators having solution electrodes containing manganese dioxide and lead dioxide as active material on the cathode side and containing acid electrolytes. The electrolyte has a content of onium salts soluble in aqueous medium.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: March 14, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz Beck, Gerd Wunsch, Wolfram Treptow
  • Manufacture of tetrahydrofuran from the diacetate of 1,4-butanediol
    Patent number: 4079068
    Abstract: Tetrahydrofuran is prepared from a compound containing butanediol or capable of generating butanediol. The butanediol-donating compound is an ester of butanediol which is reacted with hydrolysis and etherification by passing it downwardly through a distillation column together with an acid catalyst and passing steam upwardly therethrough. The product which distills off is tetrahydrofuran.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: March 14, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Eckhard Hetzel, Hans-Martin Weitz, Ludwig Vogel, Juergen Hartig
  • Manufacture of phthalic anhydride from o-xylene or naphthalene
    Patent number: 4077984
    Abstract: A process for the manufacture of phthalic anhydride by oxidizing o-xylene and/or naphthalene over a supported catalyst containing vanadium pentoxide and titanium dioxide, at from 350.degree. to 500.degree. C, in which the o-xylene or naphthalene is passed, with an oxygen-containing carrier gas, over the catalyst, and in which the catalyst in the first 25-50 per cent by volume of the total catalyst volume, in the direction of flow of the mixture of o-xylene or naphthalene and carrier gas, contains from 0.01 to 0.3 per cent by weight, based on titanium dioxide, of rubidium, but no phosphorus, in the active composition, while the remainder of the catalyst contains from 0.02 to 0.8 per cent by weight, based on titanium dioxide, of phosphorus, but no rubidium, in the active composition.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: March 7, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Kurt Blechschmitt, Peter Reuter, Friedrich Wirth, Paul Hornberger
  • Glycol antifreeze mixtures
    Patent number: 4077894
    Abstract: A glycol-based antifreeze formulation containing as a defoaming agent, from 0.001% to about 1.0% by weight of a mixture containing a compound of the formula ##STR1## WHEREIN R is an alkyl, alkoxyalkyl, hydroxyalkyl, or dihydroxyalkyl group having from 1 to 6 carbon atoms, R.sup.1 is hydrogen, methyl or ethyl, R.sup.2 is an alkyl group having 1 to 8 carbon atoms, p is an integer from 1 to 20, and n is an integer from 1 to 14; and a compound of the formulaRO--(C.sub.6 H.sub.10 O.sub.5).sub.p --Hwherein R and p are as defined above.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: March 7, 1978
    Assignee: BASF Wyandotte Corporation
    Inventors: William Keith Langdon, Daniel Ronan Dutton
  • Removal of mercury from liquids
    Patent number: 4077856
    Abstract: In a process for the removal of mercury by treatment with elementary nickel an external voltage is applied to maintain the potential of the nickel at a value which differs from the potential of the reversible hydrogen electrode in the liquid concerned by not more than from -250 mV to +50 mV. The treatment is carried out at temperatures of from 80.degree. to 230.degree. C.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: March 7, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Habermann, Dieter Stockburger, Peter Thoma, Gotthard Csizi
  • 1-Polyfluoroalkoxyphenyl-4-substituted-5-halopyridazones-6 and herbicidal uses thereof
    Patent number: 4077797
    Abstract: 1-Polyfluoroalkoxyphenyl-4-substituted-5-halopyridazones-6 in which the 4-substituent is amino, monoalkylamino, dialkylamino (1 to 3 carbon atoms per alkyl) or lower alkoxy, chloroacetamido, CH.sub.3 COOCH.sub.2 --CO--NH-- or trimethylenimino and herbicidal uses thereof to control growth of unwanted plants among crop plants, especially cotton.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: March 7, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Fischer, deceased, Hanspeter Hansen, Wolfgang Rohr
  • Glycol antifreeze mixtures
    Patent number: 4077895
    Abstract: A glycol-based antifreeze formulation containing as a defoaming agent, from 0.001% to about 1.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: March 7, 1978
    Assignee: BASF Wyandotte Corporation
    Inventors: William Keith Langdon, Daniel Ronan Dutton
  • Purification of formic acid by extractive distillation
    Patent number: 4076594
    Abstract: Formic acid is purified by extractive distillation of its aqueous solutions using a basic extractant, followed by distillation of the bottom mixture first obtained, the extractant used being N-formylmorpholine.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: February 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Buelow, Heinz Hohenschutz, Johannes E. Schmidt, Werner Sachsze
  • Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars
    Patent number: 4076919
    Abstract: Ethylene polymers are manufactured in a tubular reactor under high pressure and at high temperatures in the presence of polymerization initiators. The polymerization is carried out in two different zones of the reactor, a mixture of ethylene, oxygen and regulator being fed into the first zone and a co-initiator having a half-life temperature, measured in benzene, of above 140.degree. C being additionally fed into the second zone. The co-initiator may be a peroxide or a hydroperoxide. The melt index, or the haze and gloss of a film produced from the resulting ethylene polymer, can be varied advantageously through the choice of the co-initiator.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: February 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Friedrich Urban, Oskar Buechner, Ulrich Hartig, Hans Gropper
  • Polycyclic scents
    Patent number: 4076748
    Abstract: New polycyclic Diels-Alder adducts which are formed on reaction of 8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-dec-8-ene or 8-hydroxy-8-vinyl-tricyclo-[5,2,1,0.sup.2,6 ]-decane with alkenes or alkynes having one or two activating substituents, e.g., --COOH, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --CHO, --COCH.sub.3, --COC.sub.2 H.sub.5 or --CN. They have green, fresh, fruity and in some cases woody odors with long-lasting tenacity and/or fixing properties. They can be used as constituents of perfumes and of compositions for perfuming body care products, detergents and other consumer products.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: February 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hoffmann, Karl VON Fraunberg
  • Process for the separation of residues of toluenediisocyanate production
    Patent number: 4076577
    Abstract: A process for the separation of residues of toluenediisocyanate production from mixtures containing high boiling residues, toluenediisocyanate and solvent by evaporation in said residue at a minimum of 5.degree. C above the boiling point of the higher boiling of the components consisting of toluenediisocyanate and solvent. The mixture is fed into the central portion of an evaporator equipped with a helical agitator operative to provide a material flow moving centrally downwards and peripherally upwards.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: February 28, 1978
    Assignee: BASF Wyandotte Corporation
    Inventors: Eckard Hetzel, Waldemar Koehler, Georg Friedrich Vock, Rolf Bittler
  • Flameproof nylon molding compositions
    Patent number: 4076682
    Abstract: Thermoplastic molding compositions comprise a linear nylon, an adduct of hexachlorocyclopentadiene and a dienophile as a flameproofing agent, zinc oxide as a synergistic agent, and reinforcing fillers. The zinc oxide is manufactured by adding an aqueous solution of a zinc salt and an aqueous solution of a base to an aqueous suspension of an inorganic carrier, the zinc oxide being precipitated at a pH of from 10 to 12. The molding compositions can be processed to give flameproof moldings having good mechanical properties.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: February 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Theysohn, Rolf Wurmb, Bernd Leutner, Hans-Ulrich Schlimper
  • Continuous dyeing of polyester fibers and cellulose fibers
    Patent number: 4076497
    Abstract: Polyester fibers and cellulose fibers, and blends of these fibers, are dyed continuously with disperse dyes, or dispersed dyes, by continuous application of an aqueous dye liquor which contains, as the essential dyeing assistant, a polyoxyalkylated amine, a polyoxyalkylated amine-oxide and/or a quaternized polyoxyalkylated amine which in 1% strength aqueous solution has a cloud point of not less than 18.degree. C and which is derived from amines which contain at least 2 nitrogen atoms and at least one group which can be oxyalkylated, followed by drying and fixing.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: February 28, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Freyberg, Dieter Horn, Knut Oppenlaender, Hans Wolf, Dieter Distler
  • 2,1,3-Benzothiadiazines
    Patent number: 4075004
    Abstract: New and valuable substituted 2,1,3-benzothiadiazine compounds having a herbicidal action, herbicides containing these compounds, a method of controlling the growth of unwanted plants with these compounds, and methods for their manufacture.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: February 21, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Ulrich Schirmer, Bruno Wuerzer, Guenter Retzlaff
  • Naphthalimide compounds and optical brighteners
    Patent number: 4075211
    Abstract: Compounds of the naphthalimide series which in the dissolved condition exhibit a characteristic blue, violet or bluish violet fluorescence, and a process for their production. The compounds are outstandingly suitable for the optical brightening of synthetic fibers.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: February 21, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Scheuermann, Albert Hettche