Patents Assigned to BASF
  • Catalyst consisting of a hollow cylindrical carrier having a catalytically active oxide material applied to the outer surface of the carrier, and process for using said catalyst
    Patent number: 5910608
    Abstract: A coated catalyst which consists of a hollow cylindrical carrier and a catalytically active oxide material applied to the outer surface of the carrier, the applied catalytically active oxide material being applied in a coat thickness of from 10 to 1000 .mu.m, and having a specific catalytic surface area of from 20 to 30 m.sup.2 /g and an abrasion of <10, preferably <5, particularly preferably <0,5, % by weight in the turntable abrasion test. The catalyst is useful in the preparation of acrylic acid by the gas phase oxidation of acroleins.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Tenten, Peter Weidlich, Gerd Linden
  • Micropowders
    Patent number: 5910558
    Abstract: Micropowders having spherical particles possessing an essentially smooth surface structure contain, as essential components, polyarylene ether sulfones or polyarylene ether ketones and are obtainable by prilling melts thereof or spray-drying solutions thereof.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schoenherr, Juergen Ahlers, Hermann Buchert
  • Fungicidal mixtures of an oximether carboxylic acid amide with anilinopyrimidines
    Patent number: 5910500
    Abstract: A fungicidal mixture comprisinga) an oxime ether carboxamide of the formula I ##STR1## where R is hydrogen or halogen and b) a pyrimidine derivative of the formula II ##STR2## where R is methyl, propyn-1-yl or cyclopropyl, in a synergistically active amount.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Barbara Schwalge, Ruth Muller, Herbert Bayer, Hubert Sauter, Eberhard Ammermann, Gisela Lorenz, Siegfried Strathmann
  • Preparation of rubber-modified molding materials by means of groups which are incorporated in the rubber and form free radicals on thermal decomposition
    Patent number: 5910553
    Abstract: In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) ##STR1## where R.sup.1 is hydrogen or methyl and R.sup.2 is alkyl of 1 to 32 carbon atoms, at least one first monomer (b) which forms free radicals on thermal decomposition and, if required, a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B),in a second stage, the resulting rubber (B) is mixed with a third monomer (d) or a plurality thereof, preferably dissolved or swollen therein, to form a second mixture (C), andin a third stage, the second mixture (C) is polymerized with free radicals to give the rubber-modified molding material (D).
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Graham Edmund McKee, Rainer Moors, Hermann Gausepohl, Joachim Seibring
  • Mixtures of sulfo-containing 1:2 metal complexes with vinyl polymers
    Patent number: 5910623
    Abstract: Liquid or solid mixtures of low-salt sulfo-containing 1:2 metal complex dyes and poly-N-vinylpyrrolidone or copolymers of N-vinylpyrrolidone and vinyl acetate are especially useful for dyeing paper and wood and also for dyeing and finishing leather and fur.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Kessel, Manfred Patsch, Manfred Herrmann, Kurt Reiner, Jorg Jessen, Matthias Wiesenfeldt
  • Esterification of (meth)acrylic acid with an alkanol
    Patent number: 5910603
    Abstract: In a process for esterifying (meth)acrylic acid with an alkanol in the presence of an acidic esterification catalyst, in which unconverted starting compounds and the (meth)acrylates to be formed are separated off by distillation and an oxyester-containing bottom product is formed, the bottom product is separated off and is heated in the presence of an acid to 150-250.degree. C. and the pressure is adjusted so that the cleavage products formed under the abovementioned conditions from the oxyesters contained in the bottom product evaporate directly. The process can be carried out in the presence of molecular oxygen. Mineral acids, for example sulfuric acid or phosphoric acid and/or alkanesulfonic or arylsulfonic acids, for example methanesulfonic acid or p-toluenesulfonic acid, can be added to the bottom product.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Aichinger, Matthias Geisendorfer, Holger Herbst, Gerhard Nestler
  • Preparation of medium molecular weight, highly reactive polyisobutene
    Patent number: 5910550
    Abstract: Polyisobutene having an average molecular weight M.sub.n of from above 5000 to 80,000 dalton and containing more than 50 mol % of terminal double bonds is prepared by a novel process, by cationic polymerization of an isobutene-containing hydrocarbon mixture in. the liquid phase in the presence of a boron trifluoride complex catalyst, and has a dispersity of M.sub.w /M.sub.n of from 2 to 4 and is contained in lubricants.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventor: Hans Peter Rath
  • Phenylazoanilines
    Patent number: 5910578
    Abstract: Azo dyes of the formula ##STR1## where X is oxygen or a radical of the formula NR.sup.6, where R.sup.6 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl,R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl or substituted or unsubstituted phenyl,Y is hydrogen, halogen or cyano,Z is nitro or additionally cyano when Y is halogen or cyano,R.sup.2 is C.sub.1 -C.sub.4 -alkyl, methoxymethyl or substituted or unsubstituted phenyl,R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkyl, andR.sup.4 and R.sup.5 are each substituted or unsubstituted C.sub.2 -C.sub.13 -alkyl or C.sub.2 -C.sub.6 -alkenyl,are useful for dyeing or printing synthetic materials and are synthesizable using novel dinitroaminoaromatics as diazo components.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Saling, Erhard Klahr, Helmut Reichelt, Sabine Gruettner-Merten
  • Preparation of anhydrous 2-amino-1-methoxypropane
    Patent number: 5910612
    Abstract: The process for preparing anhydrous 2-amino-1-methoxypropane proceeds by(a) admixing a 2-amino-1-methoxypropane-containing water-containing reaction mixture, obtainable from the reaction of 1-methoxy-2-propanol with ammonia on a catalyst, with sodium hydroxide solution, forming an aqueous phase containing sodium hydroxide solution and a 2-amino-1-methoxypropane-containing phase,(b) separating off the 2-amino-1-methoxypropane-containing phase from the aqueous phase and(c) distilling the 2-amino-1-methoxypropane-containing phase, an azeotrope of water and 2-amino-1-methoxypropane, which is recycled to step (a) or (b), first being produced and anhydrous 2-amino-1-methoxypropane then being produced.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: June 8, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Simon, Andreas Henne, Heinz Lingk
  • N-substituted azabicycloalkane derivatives, their preparation and use
    Patent number: 5908844
    Abstract: Compounds of the formula I ##STR1## where B, R.sup.1, R.sup.2, n, R.sup.3, A, X, Y and Z have the meanings stated in the description, and their preparation are described. The novel ompounds are suitable for controlling diseases.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 1, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Steiner, Rainer Munschauer, Liliane Unger, Hans-Jurgen Teschendorf, Thomas Hoger
  • Elasticity imparting agents for paints, a method of manufacture and paints
    Patent number: 5908900
    Abstract: To obtain elasticity imparting agents for paints comprised of liquid non-aqueous polymer dispersions which, when added to paints, improve the scratch resistance without lowering the acid resistance of the hardened paint film. A liquid non-aqueous polymer dispersion which contains (a) 40-90 percent by weight organic solvent, (b) 10-50 percent by weight particle component comprised vinyl based copolymer which contains 30 percent by weight or more of structural units of formula (1), and (c) 5-40 percent by weight dispersion stabilizer for dispersing the (b) component in the (a) component. In formula (1) R.sup.1 -R.sup.5 are H or methyl groups, m is 0-2, n is 0-10, p is 0 or 1, q is 0-3 and r is 0-3.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: June 1, 1999
    Assignee: BASF Coatings AG
    Inventors: Yasuhrio Momna, Yasushi Sugihara, Kishio Shibato
  • Thermoplastic polyurethanes and their preparation
    Patent number: 5908894
    Abstract: Thermoplastic polyurethanes are prepared by reacting (a) isocyanates with (b) compounds reactive toward isocyanates, in the presence or absence of (c) chain extenders, (d) catalysts and (e) customary auxiliaries and additives and adding crosslinked polyurethanes in comminuted form before, during and/or after the reaction.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 1, 1999
    Assignee: Basf Aktiengesellschaft
    Inventors: Manfred Genz, Frank Prissok, Peter Horn, Ruediger Krech, Gerhard Lehr, Horst King
  • Oral care compositions comprising liquid polyoxyalkylene compounds as solubilizers/gelling agents
    Patent number: 5908612
    Abstract: The present invention relates to oral care compositions comprising Liquid Polyoxyalkylene Compounds as Solubilizers/Gelling Agents.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: June 1, 1999
    Assignee: BASF Corporation
    Inventors: James S. Dailey, Jay G. Otten, Jay Amarasekara, Sridhar Gopalkrishnan
  • Metallocene catalyst systems containing lewis bases
    Patent number: 5908903
    Abstract: Catalyst systems which are suitable for polymerizing olefinically unsaturated compounds comprise as active constituentsA) a metallocene complex of the metals of the fourth, fifth or sixth transition group of the Periodic Table of the Elements,B) a compound forming metallocenium ions andC) a sterically hindered, organic Lewis base.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 1, 1999
    Assignee: BASF Aktiengesellschaft
    Inventor: Joachim Rosch
  • Use of triacids based on alkoxylated tertiary amines as complexing agents
    Patent number: 5907055
    Abstract: The use of triacids of the formula I ##STR1## where X.sup.1 to X.sup.3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO.sub.3 M or phosphonic acid groups of the formula PO.sub.3 M.sub.2, whereM is hydrogen, alkali metal, ammonium or substituted ammonium,A.sup.1 to A.sup.3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms,R.sup.1 to R.sup.3 are, independently of one another, C.sub.1 -C.sub.8 -alkylene, andx, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1,as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Greindl, Birgit Potthoff-Karl, Alfred Oftring, Thomas Fetzer, Richard Baur, Wolfgang Trieselt
  • Graft copolymers of polyarylene ethers, polyamides and copolymers which contain cyclic, .alpha.,.beta.-unsaturated dicarboxylic anhydrides as polymerized units
    Patent number: 5907010
    Abstract: Graft copolymers are obtainable by reactingA) polyarylene ethers,B) polyamides andC) copolymers which contain cyclic, .alpha.,.beta.-unsaturated dicarboxylic anhydridesand are used for the preparation of thermoplastic molding materials or as compatibilizers for polymer blends based on polyarylene ethers and polyamides.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Norbert Guntherberg
  • Integral skin foams employing pentafluoropropane blowing agents
    Patent number: 5906999
    Abstract: It has been found that non-chlorinated pentafluoropropane blowing agents may be used alone or in combination with water in flexible integral skin foams. For example, foams prepared using 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in many applications including, for example, shoe soles.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Elizabeth S. Bredeson
  • High solids thermosetting compositions with dual cure mechanism
    Patent number: 5907024
    Abstract: Disclosed is a curable coating composition that includes a compound having both hydroxy functionality and carbamate functionality of the structure ##STR1## wherein R is H or alkyl, a polyisocyanate crosslinking agents and an aminoplast crosslinking agent. The effective equivalents of the aminoplast crosslinking agent is equal to or less than the equivalents of carbamate functionality and the effective equivalents of polyisocyanate crosslinker is equal to or less than the equivalents of hydroxyl functionality. The carbamate-functional resin and the aminoplast crosslinking agent provide rheology control during the early part of the bake to cure an applied coating of the coating composition.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Paul J. Harris
  • Aqueous coating materials and their use for the production of filler coats in automotive finishing
    Patent number: 5905132
    Abstract: The invention relates to coating materials containing a water-dilutable polyurethane resin as binder. The resin can be prepared by reacting some of the free isocyanate groups present in a prepolymer (I) which contains acidic groups and isocyanate groups with a blocking agent so as to form a prepolymer (II) which contains blocked isocyanate groups, the blocking agent being employed in a quantity such that the prepolymer (II) still contains on average at least one free isocyanate group per molecule, reacting the prepolymer (II) with a compound which contains at least one primary or secondary amino group and at least one hydroxyl group in the molecule, to give a polyurethane resin, and finally converting the polyurethane resin prepared in this way into a water-dilutable polyurethane resin by at least partial neutralization of the acidic groups.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: May 18, 1999
    Assignee: BASF Coatings AG
    Inventors: Egon Wegner, Lutz-Werner Gross, Ralf Stein
  • Separation of optically active amides
    Patent number: 5905167
    Abstract: The present invention relates to a process for cleaving optically active amides to carboxylic acids and optically active amines with retention of the center of chirality, wherein the amides are hydrolyzed in the presence of a polyol or of an amino alcohol and of an alkali metal or alkaline earth metal hydroxide.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: May 18, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Friedhelm Balkenhohl, Wolfgang Ladner