Patents Assigned to BASF
  • P-hydroxy phenone derivatives used in the treatment of cardiac arrhythmia
    Patent number: 5270325
    Abstract: p-hydroxy phenone derivatives of the formula I ##STR1## where X is ##STR2## where R.sup.1 =F, Cl, Br or trifluoromethyl or a heteroaryl of the structure ##STR3## with R.sup.2 =C.sub.1 -C.sub.4 -alkyl,Y is a bridging member of the formula --CH.dbd.CH--, --CH.sub.2 CH.sub.2 -- or --CH.sub.2 --,n is one of the numbers 2, 3 or 4 andZ is an amino group of the formula --NR.sup.2 R.sup.3 or N-pyrrolidyl or N-piperidyl, where R.sup.2 and R.sup.3 are, independently of one another, C.sub.1 -C.sub.4 -alkyl, as well as the physiologically tolerated salts thereof, are used for preparing drugs.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: December 14, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Wilfried Lubisch, Gerda von Philipsborn
  • Surface-modified micaceous particulates having improved dispersibility in aqueous media
    Patent number: 5270352
    Abstract: Compounds useful for improving the dispersibility of micaceous particulates in aqueous-based coating compositions comprise urethanes or ureas which are the reaction products of silylalkyl or silylaryl isocyanates with alcohols, amines, polyether alcohols or amine-terminated polyethers. The compounds may also be the reaction products of silylalkyl- or silylarylamines with half-blocked diisocyanates which are themselves the reaction products of a diisocyanate with an alcohol, amine, polyether alcohol or amine-terminated polyether.Micaceous particulates which have been surface modified by reaction with these compounds, as well as coating compositions comprising such surface-modified micaceous particulates, and coated substrates are also disclosed.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: December 14, 1993
    Assignee: BASF Corporation
    Inventors: Clint W. Carpenter, Thomas G. Savino, Alan L. Steinmetz
  • Urea-modified copolymers as dispersants for pigments in coating compositions
    Patent number: 5270399
    Abstract: The present invention is directed to a pigment dispersant for use in coating compositions. The dispersant is the reaction product of a functionalized copolymer, a polyalkylene glycol monalkyl compound to impart water soluble character to the copolymer, and a urea-containing pigment interactive substituent that enhances pigment dispersion in solution.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: December 14, 1993
    Assignee: BASF Corporation
    Inventors: Zenon P. Czornij, Thomas G. Savino
  • Nonwoven bonding technique
    Patent number: 5269994
    Abstract: Thermally bonding nonwoven fabrics having superior tensile stength without decreased absorbency are prepared by supplying a web to a hot calender bonding system and passing the resulting calendered web to a hot-air bonding system.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: December 14, 1993
    Assignee: BASF Corporation
    Inventors: Forrest Deffenbaugh, David B. Christopher
  • Preparation of oligomeric or polymeric radiation-reactive intermediates for solvent-structured layers
    Patent number: 5270431
    Abstract: Oligomeric or polymeric radiation-reactive intermediates of polyamides, polyisoindoloquinazolinediones, polyoxazinediones or polyquinazolinediones are prepared by a process in which a carboxyl-containing polyadduct of aromatic and/or heterocyclic tetracarboxylic dianhydrides and diamino compounds, or a carboxyl-containing polyadduct of aromatic and/or heterocyclic dihydroxydicarboxylic acids and diisocyanates, or a carboxyl-containing polyadduct of aromatic and/or heterocyclic diaminodicarboxylic acids and diisocyanates is subjected to an addition reaction with an ethylenically unsaturated monoisocyanate.The products prepared according to the invention are suitable as structure-forming functional or auxiliary layers in the construction of electronic components.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: December 14, 1993
    Assignee: BASF Aktiengesellschaft
    Inventor: Rainer Blum
  • Process of dispersion polymerization of butadiene in propane or butane
    Patent number: 5270395
    Abstract: Butadiene is polymerized alone or with a monomer such as styrene in a dispersion in propane, butane or its mixtures with minor amounts of other C.sub.4 -C.sub.6 alkanes, e.g., n-pentane and a dispersant which is preferably a hydrogenated styrene/ conjugated diene block copolymer to achieve stable dispersions at higher solids and butadiene levels possible with similar alkane dispersants.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: December 14, 1993
    Assignee: BASF Corporation
    Inventors: Binnur Z. Gunesin, Paul A. Pindris
  • Aqueous synthetic resin preparation capable of cross-linking at room temperature and the use thereof as a laminating adhesive
    Patent number: 5268417
    Abstract: Aqueous dispersions of a copolymer obtained by free-radical polymerization and containing from 0.01 to 40% w/w of polymerized units of comonomers having at least one aldehyde or keto group, which dispersions contain at least one polyisocyanate in which the isocyanate groups are blocked by oximes.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Filges, Karl Haeberle, Lothar Maempel, Oral Aydin, Gerhard Bauer
  • Preparation of mixtures of 3-aminopropionitrile and ethylene cyanohydrin
    Patent number: 5268499
    Abstract: A process for preparing mixtures of 3-aminopropionitrile of the formula IH.sub.2 N--CH.sub.2 --CH.sub.2 --CN (I)and ethylene cyanohydrin of the formula IIHO--CH.sub.2 --CH.sub.2 --CN (II)comprises reacting bis(2-cyanoethyl) ether of the formula IIINC--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --CN (III)with ammonia at from 50 to 170.degree. C. and under from 1 to 500 bar thermally or in the presence of a heterogeneous catalyst.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Martin Brudermueller, Wolfgang Harder, Juergen Hartig, Dieter Franz
  • Stereoselective preparation of Z-1,2-diarylallyl chlorides and the conversion thereof into azolylmethyloxiranes, and novel intermediates
    Patent number: 5268517
    Abstract: The preparation of Z-1,2-diarylallyl chlorides of the general formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or a substituted aromatic radical, and n and m are 1, 2 or 3, by dehydrating chlorohydrins of the formula II ##STR2## in which the radicals are as defined above, at up to 50.degree. C. in an inert ether or carboxylic acid ester as solvent and in the presence of a carboxylic anhydride and an organic or inorganic acid, the conversion thereof into azolylmethyloxiranes, and novel intermediates are described.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Reiner Kober, Rainer Seele, Heinz Isak, Eckhard Hichmann, Norbert Goetz, Thomas Zierke
  • N-heterocyclomethylspiroheterocycles and fungicides containing them
    Patent number: 5268351
    Abstract: N-Heterocyclomethylspiroheterocycles of the general formula I ##STR1## where A is a radical II, III or IV ##STR2## R.sup.2 is CH.sub.3, OH or OCH.sub.3, n is from 0 to 3,R.sup.3 is hydroxyl, acyloxy, alkoxy, unsubstituted or substituted benzoyloxy, unsubstituted or substituted benzyloxy, unsubstituted or substituted alkyl or unsubstituted or substituted alkenyl, unsubstituted or substituted aryl,X is oxygen, sulfur or methylene,Y is hydrogen or hydroxyl, andR.sup.1 is hydrogen, alkyl or unsubstituted or substituted cyclohexyl or unsubstituted or substituted phenyl, their addition salts with acids, and fungicides containing these compounds.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Zipplies, Eberhard Ammermann, Gisela Lorenz
  • Reactivation of montmorillonite catalysts
    Patent number: 5268345
    Abstract: A process for the reactivation of spent montmorillonite catalysts by thermal treatment, in which the spent catalysts are heated at a temperature of from 650.degree. to 850.degree. over a period of from 0.2 to 3 hours, and the montmorillonite catalysts thus obtained.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventor: Herbert Mueller
  • Toughened thermoplastic molding material
    Patent number: 5266638
    Abstract: A thermoplastic molding material which is made up of components A, B, C, and D. Component A comprises 10-90% of the composition and is a copolymer made up of 30-95% styrene; 4-40% (meth)acrylonitrile, methyl methacrylate, or maleic anhydride; 1-30% of a monomer described by formula in the specification, N-vinylimidazole or N-vinylcarbazole; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component B comprises 10-90% of the composition and is a copolymer made up of 50-99.9% of an alpha-olefin; 0.1-50% of a monomer containing acid groups; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component C comprises up to 80% of the composition and is a copolymer made up of 50-95% styrene and 5-50% (meth)acrylonitrile, methyl methacrylate or maleic anhydride. Component D comprises up to 80% of the composition and is made up of a polycarbonate. All percentages are by weight.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Niessner, Klaus Muehlbach, Friedrich Seitz
  • Branched copolymers
    Patent number: 5266647
    Abstract: A copolymer with stellate branching, of the general formula [A-].sub.k X, where A is the monovalent radical of a homopolymer, block copolymer or random copolymer of a conjugated diene and/or vinyl-aromatic hydrocarbon, k is a number from 1 to 10, and X is the k-valent radical of a coupling center produced by coupling with hexatriene, and the product of the hydrogenation thereof are described.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Bender, Klaus Bronstert, Hans-Michael Walter, Daniel Wagner, Helmut Mach
  • Corrosion-inhibiting automotive coolant solutions containing effective amounts of sodium silicate having a low ratio of silica to sodium oxide
    Patent number: 5266228
    Abstract: Non-corrosive anti-freeze solutions for automotive cooling systems include an anti-corrosive effective amount of a sodium silicate corrosion inhibitor. The sodium silicate has an unusually low ratio of silica to sodium oxide of greater than 1.0 to about 2.5. This relatively low ratio of silica to sodium oxide prevents gelation from occurring while maintaining maximum anti-corrosive effectiveness of alcohol-based solutions containing the same.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: November 30, 1993
    Assignee: BASF Corporation
    Inventors: Stanley T. Hirozawa, David E. Turcotte
  • Magnetic recording media
    Patent number: 5266408
    Abstract: Magnetic recording media consist of a nonmagnetic substrate and one or more magnetizable layers bonded thereon and based on a polyurethane binder, the binder consisting of not less than 50% by weight of a branched polyurethane elastomer having sulfonate groups and possessing urea groups at the chain ends.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: November 30, 1993
    Assignee: BASF Magnetic GmbH
    Inventors: Uwe Keppeler, Hermann Dikow, Helmut Auweter, Michael Bobrich, Jochen Rudolph, Gregor Brodt, Albert Kohl, Werner Lenz, Rudolf Suettinger
  • Water-blown integral skin polyurethane foams having a skin with abrasion resistance
    Patent number: 5266234
    Abstract: The invention pertains to a water blown integral skin polyurethane foam having a skin with good abrasion resistance. The foam is manufactured by employing as a polyol composition a polyol having a functionality of from 1.75 to 2.65 and a molecular weight of from 1500 to 5000 along with a surfactant and water as a blowing agent. The particular surfactant is a particular siloxane or an ethylene oxide adduct of octylphenol.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: November 30, 1993
    Assignee: BASF Corporation
    Inventors: David J. Ho, David B. McCulloch
  • Preparation of .alpha.-hydroxymethal acetals
    Patent number: 5266171
    Abstract: A process for preparing an .alpha.-hydroxymethyl acetal by the electrochemical oxidation of a carbonyl compound, e.g. an aliphatic or aromatic aldehyde or ketone, with a C.sub.1 -C.sub.8 -alkanol under non-alkaline conditions and in the presence of an auxiliary electrolyte containing from 0 to 5% and preferably 0.5 to 3% by weight of water.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventor: Dieter Hermeling
  • Magnetic recording media
    Patent number: 5266407
    Abstract: In magnetic recording media consisting of a nonmagnetic substrate and one or more magnetizable layers bonded thereon and based on a polyurethane binder, the binder consists of not less than 50% by weight of an isocyanate-free, branched polyurethane which is soluble in tetrahydrofuran and has sulfonate groups along the polyurethane branches and OH-containing urea groups at the chain ends and a molecular weight of from 4,000 to 30,000.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: November 30, 1993
    Assignee: BASF Magnetics GmbH
    Inventors: Uwe Keppeler, Michael Bobrich, Helmut Auweter, Rudolf Suettinger, Albert Kohl, Hermann Dikow, Werner Lenz, Gregor Brodt
  • Oil-soluble phenylazoaniline dyes
    Patent number: 5266227
    Abstract: Azo dyes useful for marking mineral oils have the formula ##STR1## where R.sup.1 and R.sup.2 are hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,R.sup.3 is hydrogen or C.sub.1 -C.sub.8 -alkyl which may be substituted by hydroxyl and interrupted by from 1 to 3 oxygen atoms,R.sup.4 is C.sub.1 -C.sub.8 -alkyl which may be substituted by hydroxyl and interrupted by from 1 to 3 oxygen atoms, andX is cyano or substituted or unsubstituted C.sub.1 -C.sub.8 -alkoxycarbonyl,with the proviso that the molecule contains at least one hydroxyalkyl radical.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Reichelt, Christos Vamvakaris, Georg Zeidler
  • Paper sizing using copolymers of long-chain olefins and maleic anhydride in the form of the semiamides with morpholine
    Patent number: 5266165
    Abstract: Abstract of the Disclosure: Copolymers of (a) C.sub.12 - to C.sub.24 -monoolefins and (b) maleic anhydride or itaconic anhydride, having molecular weights of from 800 to 100,000 g/mol, in the form of partially or completely neutralized semiamides with morpholine, in aqueous solution or dispersion, can be used as sizes for paper.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnold DeClercq, Walter Denzinger, Norbert Greif, Heinrich Hartmann, Knut Oppenlaender, Ulrich Riebeling