Patents Assigned to BASF
  • Patent number: 5319044
    Abstract: A branched polymer containing silyl groups, a process for the preparation thereof, coating agents based on the polymer, and the use thereof.The invention relates to polymers containing silyl groups, the silyl groups being introduced into the polymer through ethylenically unsaturated monomers of the general formula ##STR1## wherein R.sup.1 =alkyl, aryl, acyl or aralkyl having 1 to 10 carbon atoms,R.sup.2 =an organic radical having a polymerizable double bond,X=a hydrolyzable group, andn=1, 2 or 3.The polymers can be obtained by copolymerization ofa) 0.1 to 40% by weight of the silane monomers (a),b) 5 to 30% by weight, preferably 8 to 25% by weight, of monomers containing at least 2 polymerizable, ethylenically unsaturated double bonds, andc) 30 to 90% by weight of ethylenically unsaturated monomers without groups containing active hydrogen.The invention also relates to moisture-hardening coating agents based on the polymers containing silyl groups.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: June 7, 1994
    Assignee: BASF Lacke + Farben AG
    Inventors: Werner A. Jung, Arno Schmitz
  • Patent number: 5318601
    Abstract: Dye mixtures containing from 50 to 95% by weight, of a 4-chloro-2-nitrophenylazohydroxypyridone dye and from 5 to 50% by weight of a chlorinated quinophthalone dye and/or from 5 to 20% by weight of an unsubstituted quinophthalone dye, dye formulations containing the novel dye mixtures and the use of dye mixtures for dyeing polyesters or printing them by the direct printing method.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: June 7, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Arno Lange, Gert Motzkus, Helmut Degen, Volker Walther
  • Patent number: 5318945
    Abstract: Thiocarboxylic acid derivatives useful as herbicides or plant growth regulators are of the general formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, unsubstituted or substituted cycloalkyl or cycloalkenyl, unsubstituted or substituted alkenyl or alkynyl or unsubstituted or substituted phenyl;R.sup.2 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio;X is nitrogen or CR.sup.6, where R.sup.6 is hydrogen or, together with R.sup.3, forms a C.sub.3 - or C.sub.4 -alkylene chain or C.sub.3 - or C.sub.4 -alkenylene chain in which a methylene group is replaced with oxygen;R.sup.3 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio or R.sup.3 is bonded to R.sup.6 as stated above to give a 5-membered or 6-membered ring;R.sup.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: June 7, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Baumann, Thomas Saupe, Joachim Rheinheimer, Uwe J. Vogelbacher, Matthias Bratz, Norbert Meyer, Matthias Gerber, Karl-Otto Westphalen, Uwe Kardorff, Andreas Landis, Helmut Walter
  • Patent number: 5319148
    Abstract: The preparation of pyrocatechol monoethers or pyrocatechols of the formula Ia or Ib respectively ##STR1## ( R.sup.1 and R.sup.2 =H or C.sub.1 --C.sub.8 -hydrocarbon radicals; R.sup.3 =C.sub.1 --C.sub.8 -hydrocarbon radical ) by rearranging a 2-hydroxycyclohexanone dialkyl ketal II ##STR2## a) in the gas phase in the presence of a platinmetal or in the presence of a compound of one of these metals as catalyst in order to obtain a compound Ia, orb) carrying out step a) in the presence of water in order to obtain a compound Ib. The products are used as intermediates in the synthesis of pharmaceuticals, fragrances and flavors.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: June 7, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Karcher, Horst Zimmermann, Jochem Henkelmann
  • Patent number: 5318996
    Abstract: Polyurethane foams blown with a mixture of water, HCFC-22 or HCFC-141b, and a perfluorinated hydrocarbon having from 3 to 8 carbon atoms yields polyurethane and polyisocyanurate foams having exceptional physical properties, i.e., small and uniform cells, low initial K-factor, low aged K-factor, and high tensile strength. The low initial and aged K-factors are most unexpected when it is considered that significant amounts of water are used to blow the foam.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: June 7, 1994
    Assignee: BASF Corporation
    Inventors: Lorraine C. Yu-Hallada, Curtis J. Reichel
  • Patent number: 5319052
    Abstract: Oxidatively crosslinking essentially isocyanate-free urethane resins, obtainable by reactingA) 100 parts by weight of an ester of(a.sub.1) an aliphatic C.sub.3 -C.sub.8 -alcohol having three or more hydroxyl groups and(a.sub.2) an unsaturated C.sub.8 -C.sub.40 -fatty acid and(a.sub.3) if required, an aliphatic or aromatic polycarboxylic acid of 4 to 20 carbon atoms or an anhydride thereof, in amounts of up to 60% by weight, based on the fatty acid a.sub.2),the ester containing sufficient free hydroxyl groups to correspond to an OH number of 50-150 mg of KOH/g, withB)(b.sub.1) 3-120 parts by weight of C.sub.5 -C.sub.15 -polyhydroxycarboxylic acids having two or more hydroxyl groups and(b.sub.2) 10-100 parts by weight of an aliphatic or cycloaliphatic polyisocyanate or a mixture thereof,at 50.degree.-150.degree. C. in the presence of a nonpolar solvent which is inert to isocyanates, are suitable for use as printing ink components.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: June 7, 1994
    Assignee: BASF Lacke+ Farben Aktiensellschaft
    Inventors: Bernhard Prantl, Dirk Lawrenz, Rolf Walz
  • Patent number: 5319111
    Abstract: A process for the preparation of tetrahydrofuran or tetrahydrofuran and .gamma.-butyrolactone from the product of the hydrogenation of maleic acid, succinic acid, maleic anhydride, succinic anhydride and/or fumaric acid, by treating the crude hydrogenation product, without prior work-up, at from 100.degree. to 300.degree. C. with a protic acid, and isolating pure tetrahydrofuran and .gamma.-butyrolactone from the resultant reaction mixture by distillation.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: June 7, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Zimmermann, Karl Brenner, Hans-Juergen Scheiper, Wolfgang Sauer, Horst Hartmann
  • Patent number: 5318903
    Abstract: A process for the production of dry, free-flowing, enzyme preparations by spraying aqueous enzyme dispersions, which may contain additives, in a spraying apparatus, which comprises the enzyme dispersion being sprayed in the presence of from 5 to 60% by weight, based on the content of enzyme in the dispersion, of a spray auxiliary composed of hydrophobic silica and/or a metal salt of a higher fatty acid at from 0.degree. to 50.degree. C., and drying the resulting particles loaded with spray auxiliary.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: June 7, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Bewert, Gerhard Schwarz
  • Patent number: 5316148
    Abstract: In dispensers for the controlled release of pheromones, in particular sexual pheromones, a dimensionally stable container which consists of a material impermeable to the pheromone and serves as a pheromone reservoir having a volume of from 0.5 to 2.5 ml is closed by means of a pheromone-permeable film which is responsible for the pheromone release and whose release area does not exceed 10 cm.sup.2.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: May 31, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Neumann, Ernst Buschmann, Ulrich Kiessling, Guenter Renz
  • Patent number: 5317027
    Abstract: Fungicidal compositions consisting ofa) methyl .alpha.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: May 31, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Hubert Sauter, Klaus Schelberger, Reinhold Saur, Gisela Lorenz, Eberhard Ammermann
  • Patent number: 5314936
    Abstract: The invention relates to an aqueous polymer dispersion which may optionally contain mineral additives and/or pigments and which essentially consists of a mixture ofA) a 20% to 65% w/w aqueous dispersion of a copolymer of(a) an olefinically unsaturated compound containing one or more carboxyl groups and/or amide groups, and(b) at least two monomers selected from the group consisting of acrylates and methacrylates and vinylaromatic compounds, andB) from 0.1 to 5% w/w, based on the weight of the copolymer contained in component (A), of at least one aromatic ketone of the general formula (I) ##STR1## in which R stands for an alkyl or aryl radical and R.sup.1 stands for an aryl radical containing from 1 to 3 radicals of the formula --O--C(O)--O-- attached to one or more oxaalkylene groups.Such polymer dispersions are suitable for the manufacture of paints and coating systems.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: May 24, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Schwartz, Reinhard Baecher, Bernhard Dotzauer, Eckehardt Wistuba, Andreas Boettcher
  • Patent number: 5312703
    Abstract: A process for the reversible or irreversible production of an image by imagewise exposure of a recording layer to energy in the presence or absence of an electrical and/or magnetic field, resulting in a pattern of surface charges on the surface of the recording layer corresponding to the imagewise exposure to energy. The recording layer consists essentially ofan organic material which solidifies in a glass-like manner, is non-photoconductive or substantially non-photoconductive and contains permanent dipoles, in whichthe pattern of surface charges is produced without or substantially without the formation of free charge carriers by reversible imagewise alignment of at least some of the permanent dipoles present in the recording layer.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: May 17, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Wagenblast, Volker Bach
  • Patent number: 5312926
    Abstract: Indonaphthol thermal transfer dyes have the formula ##STR1## where X is nitrogen or the radical CH,R.sup.1 and R.sup.2 are each independently of the other C.sub.1 -C.sub.6 -alkyl, which may be substituted, C.sub.1 -C.sub.6 -monooxaalkyl or -dioxaalkyl or allyl,R.sup.3 and R.sup.4 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkanoylamino, andR.sup.5 is five-membered hetaryl which is not benzofused and has two or more hetero atoms,with the proviso that R.sup.1 and R.sup.2 are not both unsubstituted C.sub.1 -C.sub.6 -alkyl at one and the same time.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: May 17, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
  • Patent number: 5310712
    Abstract: In a novel process for the preparation of a supported catalyst for the polymerization of .alpha.-olefins, a carrier gel (1) is first prepared by a method in which a sodium or potassium waterglass solution is introduced into a stream of an aqueous mineral acid which is subjected to angular momentum and may contain aluminum ions, longitudinally and tangentially to the stream, the resulting silica hydrosol sprayed in the form of drops into a gaseous medium and allowed to solidify into a hydrogel, and the resulting hydrogel is freed from salts by washing without prior aging and, if necessary, freed from some of the water by extraction with alcohols and/or ketones and is then dried. This gives the carrier gel (1), which is milled and is fractionated according to particle size. In a second process step, the carrier gel (1) is laden with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resulting chromium-containing carrier gel (2) is heated at from 400.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: May 10, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Guido Funk, Rainer Hemmerich, Hans Gropper, Erich Kolk, Godofredo Follmer
  • Patent number: 5310942
    Abstract: Pyridone transfer dyes have the formula ##STR1## where Q.sup.1 is hydrogen, fluorine, chlorine, methyl or a substituted amino radical,Q.sup.2 is hydrogen, fluorine or chlorine or Q.sup.1 and Q.sup.2 together with the carbon atoms to which they are attached form an aromatic carbocyclic or heterocyclic ring,x is a heterocyclic radical, a carboxylic or carboxamide radical or substituted amino radical andK is an aromatic radical.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: May 10, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Bach, Ruediger Sens, Karl-Heinz Etzbach
  • Patent number: 5310867
    Abstract: Abstract of the Disclosure: Particles of poly(meth)acrylimides obtainable by reacting a polymer based on C.sub.1 -C.sub.22 -alkyl esters of acrylic and/or methacrylic acid with ammonia and/or at least one primary amine RNH.sub.2 are produced byA) exiting a solution of the polymer from a nozzle in a multiplicity of jets of liquid,B) breaking up the jets of liquid into droplets having a narrow size distribution by setting the nozzle swinging longitudinally or transversely or by pulsing the liquid inside the nozzle or by providing for some distance between the point of exit from the nozzle and the point of entry into a coagulating bath,C) precipitating the resulting droplets by introducing them into a coagulating bath which contains a liquid in which the polymer does not dissolve, andD) stripping the polymer particles of solvent residues and other impurities,and are useful for making shaped articles.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: May 10, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Siegmund Besecke, Andreas Deckers, Hermann Fischer, Eckhard Neufeld
  • Patent number: 5310822
    Abstract: Thermoplastic molding materials containA) from 10 to 97% by weight of a polyoxymethylene homo- or copolymer,B) from 3 to 50% by weight of a thermoplastic elastomer selected from the group consisting of the thermoplastic polyurethanes, the polyetheresters and the polyetheramides, the flexible phase of which is derived from polyetherpolycarbonatediols,C) from 0 to 50% by weight of a fibrous or particulate filler or a mixture thereof andD) from 0 to 30% by weight of conventional additives or processing assistants.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: May 10, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Sabine Kielhorn-Bayer, Peter Groll
  • Patent number: 5310915
    Abstract: Purification of 7-chloroquinoline-8-carboxylic acids I ##STR1## (X=H, halogen, lower alkyl group) by recrystallization from lower alcohols which are miscible with water, by carrying the recrystallization in the presence of small amounts of a base.The quinolinecarboxylic acids I are valuable crop protection agents.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: May 10, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Gernot Reissenweber, Knut Koob, Winfried Richarz
  • Patent number: 5308500
    Abstract: Metals that form sparingly soluble sulfides are removable from industrial wastewaters by adding a precipitant comprising a suspension obtained by mixing sulfur, an iron(II) salt, water and a base, adjusting the wastewater pH to >4, and separating off the resulting sulfidic precipitate in a conventional manner.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: May 3, 1994
    Assignee: BASF Aktiengesellschaft
    Inventor: Joerg Schwarzbach
  • Patent number: 5308828
    Abstract: Salicylaldehyde and salicylic acid derivatives and sulfur analogs thereof of the formula I ##STR1## where X is oxygen or sulfur and Y is carbon or nitrogen, and the radicals R.sup.1 to R.sup.4 have the meanings given in the disclosure, and processes and intermediates for manufacturing compounds I.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: May 3, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Joachim Rheinheimer, Uwe J. Vogelbacher, Karl-Otto Westphalen, Matthias Gerber, Helmut Walter