Patents Assigned to BASF
  • Polytetrahydrofuran ethers
    Patent number: 5124488
    Abstract: Polytetrahydrofuran ethers of the formulaR.sup.1 --O--(CH.sub.2).sub.4 ].sub.n O--R.sup.2 Iwhere n is a number from 3 to 70, and R.sup.1 and R.sup.2 are hydrocarbon radicals containing 3 to 5 carbon atoms and a double bond, but where R.sup.2 may alternatively be hydrogen.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: June 23, 1992
    Assignee: BASF Aktiengesellschaft
    Inventor: Eckhard Hickmann
  • Chemically modified proteins and colorant formulations containing the same
    Patent number: 5124438
    Abstract: Chemically modified proteins obtainable by reacting casein, collagen, gelatin, albumin or mixtures thereof(a) with 0.5 to 15% by weight of chlorine or of a compound which liberates chlorine under the reaction conditions, in an aqueous medium at a pH of from 0 to 7 or(b) with 0.5 to 50% by weight of a non-aromatic mono- or disulfonic acid which contains in its organic radical one or more groups or structural features which react with nucleophiles, in an aqueous medium at a pH of from 6 to 14,are used as dispersants in colorant formulations.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: June 23, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralf Brueckmann, Johannes P. Dix, Manfred Herrmann, Herbert Leiter, Norbert Zimmermann
  • Recyclable bumper system
    Patent number: 5122398
    Abstract: A recyclable bumper system based on polypropylene comprises a bumper support A of glass fiber reinforced polypropylene, an energy-absorbing foam core B of foamed polypropylene and a tough shell C of EP-rubber modified polypropylene which may be coated, and can be recycled by mechanical comminution, extrusion and granulation, resulting in granules from which injection moldings having good mechanical properties can be produced.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Seiler, Klaus-Dieter Ruempler, Norbert Jung, Udo Haardt, Rainer Henning, Juergen Hamprecht
  • Two stage process of preparing polyaryletherketones
    Patent number: 5122587
    Abstract: High molecular weight polyaryletherketones are prepared by nucleophilic polycondensation of a bisphenol with a mixture of a difluoroaromatic and a dichloroaromatic by a process in which, in a first stage, the total amount of bisphenol and dichloroaromatic is added and, in a second stage, the difluoroaromatic is added. The resulting polyaryletherketones have a reduced viscosity of not less than 0.65 and contain from 0.003 to 0.03% by weight of organically bonded chlorine and from 0.003 to 0.03% by weight of organically bonded fluorine.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Heinz, Robert R. Lieder
  • Vinylazoles and the use thereof for crop protection
    Patent number: 5122531
    Abstract: Vinylazoles of the general formula I ##STR1## where R.sup.1 and R.sup.2 are alkyl, cycloalkyl, tetrahydropyranyl, pyridyl, naphthyl, biphenyl or phenyl, these radicals being substituted or unsubstituted, X is CH or N, and plant-tolerated acid addition salts and metal complexes thereof, and crop protection agents containing these compounds.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Seele, Wolfgang Rohr, Bernhard Zipperer, Stefan Karbach, Lothar Rueb, Eberhard Ammermann, Gisela Lorenz, Wilhelm Rademacher, Johann Jung
  • Lithographic desensitizing ink for carbonless paper
    Patent number: 5122186
    Abstract: A lithographic desensitizing ink comprises an alkyl amine, a hydroxylated polymerized oil and an acidic resin dissolved in a hydrophobic, hydroxylic solvent, and a pigment, wherein the amine is a secondary or tertiary amine or tertiary amine oxide with substituents of 4 to 12 carbon atoms and wherein the oil has a hydroxyl value of 50 to 250 and a viscosity (ASTM D 803) of 10 to 2000 stokes.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: June 16, 1992
    Assignee: BASF Corporation
    Inventors: Byron G. Hays, John P. Petrone
  • Lightweight building board
    Patent number: 5122559
    Abstract: Lightweight building board based on mineral fibers A and thermoplastic binders contains, based on A,from 1 to 25% by weight of a copolymer B having a glass transition temperature of from 70.degree. to 105.degree. C., composed essentially offrom 50 to 98% by weight of methyl methacrylate I,from 2 to 50% by weight of one or more acrylic esters II of C.sub.1 -C.sub.8 -alkanols, andfrom 0 to 2.5% by weight of one or more crosslinking monomers III as binder,from 0 to 150% by weight of filler C,and, based on B,from 0.2 to 15% by weight of one or more amines F of the formula ##STR1## where R is C.sub.8 -C.sub.18 -alkyl or C.sub.8 -C.sub.18 -alkenyl,U and V are each C.sub.2 -C.sub.4 -alkylene,X and Y are each hydrogen, C.sub.1 -C.sub.18 -alkyl or C.sub.2 -C.sub.18 -alkenyl, andn and m are each an integer from 0 to 10,or an acid addition salt thereof.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernard Dotzauer, Michael Portugall, Wilhelm F. Beckerle, Hans-Juergen Denu
  • Thermal insulating material based on pigment containing silica aerogels
    Patent number: 5122291
    Abstract: A thermal insulating material based on a pigment-containing silica aerogel is obtainable bya) reacting an aqueous dispersion of sodium silicate and a pigment with a strong acid or sodium silicate with a pigment-containing strong acid to give a pigment-containing silica hydrogen, the pigment being such that it scatters, absorbs or reflects infrared radiation of wavelength 3-10 .mu.m,b) substantially freeing the resulting pigment-containing silica hydrogel from ionic constituents by washing with water,c) displacing the water in the hydrogen by a low-boiling liquid which is inert toward the pigment-containing silica gel,d) heating the liquid-containing silica gel thus obtained under supercritical conditions while completely covered with the liquid, ande) subsequently removing the liquid from the solid by flash vaporization at supercritical temperature.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernardo Wolff, Manfred Mielke, Guenther Seybold, Werner Ostertag, Jochen Fricke, Roland Caps
  • Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same
    Patent number: 5122304
    Abstract: Novel aqueous dispersions comprising 7-diethylamino, 4-methyl coumarine or 7-dimethylamino, 4-methyl coumarine in combination with one or more suitable dispersants, humectants and defoamers are disclosed, as well as a method for preparing these.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: June 16, 1992
    Assignee: BASF Corporation
    Inventors: Thomas B. Beamish, Rainer Dyllick
  • Production of elastic, compact or cellular moldings based on elastomers containing N-benzylurea groups in bound form, elastomers of this type, and N-benzylpolyoxyalkylene-polyamines which are suitable for this purpose
    Patent number: 5122547
    Abstract: The present invention relates to a process for the production of elastic, compact or cellular moldings based on elastomers containing N-benzylurea groups in bound form, by reactinga) one or more organic and/or modified organic polyisocyanates withb) N-benzylpolyoxyalkylene-polyamines or mixtures of N-benzylpolyoxyalkylene-polyamines and polyoxyalkylene-polyamines containing from 2 to 4 primary amino groups andc) one or more alkyl-substituted aromatic polyamines having a molecular weight of up to 500,in the presence or absence ofd) catalystsand, if desired,e) blowing agents,f) auxiliaries and/org) additives,and to the N-benzylpolyoxyalkylene-polyamines and mixtures of N-benzylpolyoxyalkylene-polyamines and polyoxyalkylene-polyamines containing from 2 to 4 primary amino groups which can be used for this purpose, and to the elastomers prepared.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Becker, Guenther Matzke, Hans U. Schmidt, Willibald Schoenleben
  • Preparation of polyaryl ether ketones by electrophilic polycondensation
    Patent number: 5122588
    Abstract: Polyaryl ether ketones which contain units of the formula ##STR1## are prepared by electrophilic polycondensation in an inert solvent in the presence of a Lewis acid and in the presence or absence of a Lewis base using a carbonyl halide as monomer component, said carbonyl halide being an oxalyl dihalide or a mixture thereof with another carbonyl halide.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Koch, Gerhard Heinz
  • Preparation of polymers having tertiary chloride end groups
    Patent number: 5122573
    Abstract: A process for the preparation of polymers of isobutene having tertiary chloride groups by reaction of appropriate polymers which have been prepared by cationic polymerization of isobutene with hydrogen chloride.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Konrad Knoll, Klaus Bronstert, Dietmar Bender
  • Amido-containing azulene squaric acid dyes, intermediates therefor and optical recording medium
    Patent number: 5122435
    Abstract: Amido-containing azulene-aquaric acid dyes of the formula ##STR1## where L is C.sub.1 -C.sub.12 -alkylene which may be substituted by phenyl,R.sup.1 and R.sup.2 are each independently of the other hydrogen, substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, substituted or unsubstituted phenyl, 2,2,6,6-tetramethylpiperidin-4-yl or cyclohexylaminocarbonyl andR.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl,with the proviso that when R.sup.6 is hydrogen the positions of the substituents CH.sub.2 --L--CO--NR.sup.1 R.sup.2 and R.sup.5 on either or both azulene rings may also be interchanged with each other within an azulene ring are used in an optical recording medium.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schmitt, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
  • Preparation of copolymers which form clear aqueous solutions
    Patent number: 5122582
    Abstract: The preparation of copolymers which form clear aqueous solutions fromA) 45 to 90% by weight N-vinylpyrrolidone,B) 10 to 55% by weight of a vinyl ester andC) 0 to 10% by weight of other copolymerizable monomersby radical polymerization in an organic solvent in the presence of a radical initiator, and removal of the organic solvent and other volatiles by distillation, entails allowing the polymerization to proceed until the N-vinylpyrrolidone content in the reaction mixture is from 5 to 1% by weight of the N-vinylpyrrolidone amount employed, substantially removing the organic solvent and other volatiles by distillation, adding water to the mixture, again adding a radical initiator and leaving the aqueous solution at from 50.degree. to 100.degree. C. for from 1 to 10 hours, and then removing volatile organic constituents virtually completely by a steam distillation.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 16, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Birgit Potthoff-Karl, Adolf Nuber, Willy Hinz, Axel Sanner
  • Preparation of O-substituted hydroxylamines
    Patent number: 5120849
    Abstract: O-substituted hydroxylamines (I)H.sub.2 N--O--CH.sub.2 --R(I)where R is H or an organic radical, and their salts are prepared by reacting a cyclic imidoether II of a 1,4- or 1,5-dicarboxylic acid, the said imidoether containing an ether group --O--CH.sub.2 --R, with a basic compound by a method in which a primary aliphatic aminoalcohol III is used as the basic compound and the compound I is, if required, converted to its salts.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: June 9, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochen Wild, Norbert Goetz, Wolfgang Will, Rolf-Dieter Kohler, Peter Plath
  • Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups
    Patent number: 5120608
    Abstract: Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a polyurethane binder which may be crosslinked with a polyisocyanate, not less than 50% by weight of the binder consisting of a low molecular weight branched polyurethane having OH-containing urea groups at the chain ends, and the frictional properties of the binder being improved and its friction reduced by the incorporation of perfluoro groups.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: June 9, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Bobrich, August Lehner, Albert Kohl, Rudolf Suettinger, Uwe Keppeler, Werner Lenz, Hermann Roller, Helmut Kopke, Guenther Schulz
  • Substituted n-hydroxypyrazoles and n-hydroxy-triazoles for controlling pests
    Patent number: 5120756
    Abstract: Novel substituted N-hydroxypyrazoles or N-hydroxytriazoles of the general formula I ##STR1## where X and Y are O, S, SO, SO.sub.2 or CH.sub.2, B is N-pyrazolyl or N-1,2,4-triazolyl of the formulae Ba and Bb respectively ##STR2## R.sup.1 and R.sup.2 are hydrogen or C.sub.1 -C.sub.3 -alkyl, R.sup.3 is hydrogen, halogen or C.sub.1 -C.sub.3 -alkyl, z is 1, 2 or 3, R.sup.4, R.sup.5 and R.sup.6 are hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy, and n is 0, 1 or 2, and methods of combating pests.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: June 9, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Neubauer, Uwe Kardoff, Joachim Leyendecker, Ulf Baus, Christoph Kuenast, Peter Hofmeister, Wolfgang Krieg, Reinhard Kirstgen, Wolfgang Reuther
  • Polymers having phthalocyanine units and their use as optically transparent films
    Patent number: 5120610
    Abstract: Novel polymers contain phthalocyanine ring systems bonded via axial bonds to a central metal atom in the polymer chain and consist of repeating units of the general formula (I) ##STR1## In the general formula (I), Pc.sup.s is a phthalocyanine ring system having peripheral substituents, Me is the central atom of the phthalocyanine ring system, which atom is bonded in the polymer main chain, suitable central metal atoms Me being silicon and germanium, R is alkylene, R' and R" are each alkyl, cycloalkyl, aryl or alkoxy and Z is a silicon-carbon bond or further Si-containing groups. The novel polymers can be particularly advantageously used for the production of ultrathin layers by the LB technique, optically transparent films having high optical anisotropy and a high volume concentration of phthalocyanine radicals being formed.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: June 9, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Wegner, Walter Caseri, Thomas Sauer
  • Platinum-on-graphite catalysts and the use thereof
    Patent number: 5120699
    Abstract: A platinum-on-graphite catalyst having a platinum content of from 0.01 to 5% w/w, wherein the graphite support has a particle size of from 1 to 600 .mu.m and the following particle size distribution:______________________________________ 183 to 600 .mu.m 15% v/v .+-. 15% absolute 68.3 to 183 .mu.m 30% v/v .+-. 20% 31.0 to 68.3 .mu.m 25% v/v .+-. 20% 17.1 to 31.0 .mu.m 15% v/v .+-. 10% 5.2 to 17.1 .mu.m 12% v/v .+-. 10% .sup. <5.2 .mu.m 5% v/v .+-. 5%.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: June 9, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz-Josef Weiss, Hugo Fuchs, Werner Steigleiter, Wolfgang Hoelderich, Luc Guns, Gerald Neubauer, Josef Ritz
  • Water-dilutable binders, containing latent primary amino groups, for cationic electrocoating finishes, and a process for their preparation
    Patent number: 5120774
    Abstract: The invention relates to water-dilutable binders for cationic electrocoating finishes, the said binders containing latent primary amino groups. In order to prepare the binders, an epoxy resin is reacted with a polyamine, which in addition to a sterically hindered primary amino group also contains at least one primary amino group blocked by reaction with a ketone or aldehyde, and, if appropriate, further primary or secondary amines.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: June 9, 1992
    Assignee: BASF Lacke & Farben AG
    Inventors: Michael Geist, Gunther Ott, Georg Schon