Patents Assigned to BASF
  • Removal of acetaldehyde from hydrocarbons
    Patent number: 5336836
    Abstract: Acetaldehyde is removed from C.sub.3 -C.sub.15 hydrocarbons by contacting the hydrocarbon or a hydrocarbon mixture in liquid phase with a zeolite whose pores have a width which is greater than 0.3 nm and up to 0.75 nm.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Ralf Weiss, Klaus Diehl, Gerhard Sandrock, Lothar Sauvage
  • Tri-carbamate-functional crosslinking agents
    Patent number: 5336566
    Abstract: Compounds are described having the formula: ##STR1## Z represents a cyanuric ring nucleus or the residue of a polyol, L.sub.1, L.sub.2, and L.sub.3 each independently represents a divalent linking group or a covalent bond, andR.sub.1, R.sub.2, and R.sub.3 each independently represents H, alkyl, cycloalkyl, or aryl.These compounds are useful as crosslinking agents for curable compositions such as coating compositions.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Corporation
    Inventor: John W. Rehfuss
  • Preparation of vinyl glycols
    Patent number: 5336815
    Abstract: Preparation of vinyl glycols (I) ##STR1## (R.sup.1 to R.sup.6 =H, a carbo-organic radical, optionally substituted) in which an unsaturated diol of formula II ##STR2## is isomerized in the presence of a rhenium catalyst under neutral conditions. The compounds (I) serve as intermediates for the preparation of active substances and for the preparation of polymers.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Becker, Walter Gramlich, Michael Huellmann, Hans-Ulrich Scholz
  • Polymeric reaction products
    Patent number: 5336722
    Abstract: Polymeric reaction products are obtained by reactingI) prepolymers obtained fromA) polyoxyalkylenes which have an average molecular weight M.sub.n of from 140 to 10,000 and contain on average from 1.5 to 3.0a.sub.1) primary or secondary amino groups ora.sub.2) epoxy groups per molecule andB) polymers which are based on conjugated dienes, have an average molecular weight M.sub.n of from 250 to 50,000 and contain on average from 1.5 to 3.0b.sub.1) primary or secondary amino groups orb.sub.2) epoxy groups per molecule, the components (a.sub.1) and ( b.sub.2) or (a.sub.2) and (b.sub.1) being reacted with one another so that from at least an amino equivalent excess to 3 amino equivalents of component (a.sub.1) or (b.sub.1) are present per epoxide equivalent of component (a.sub.2) or (b.sub.2), withII) at least one compound which forms free radicals.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: August 9, 1994
    Assignee: BASF Lacke+Farben Aktiengesellschaft
    Inventors: Dieter Faul, Gerhard Hoffmann, Klaus Huemke, Ulrich Heimann, John A. Gilbert
  • Impact modifier and molding material containing it
    Patent number: 5336718
    Abstract: A graft consisting of from 5 to 90% of a core A1 having a glass transition temperature above 25.degree. C. made up of, from 50 to 99.9% of a vinylaromatic monomer and from 0.1 to 10% of a polyfunctional crosslinking and/or graft-linking monomer optionally up to 49.9% of one or more copolymerizable monomers; from 5 to 90% of a first shell A2 of elastomeric material made up of from 50 to 99.8% of an alkyl acrylate and/or of a diene, from 0.1 to 10% of a polyfunctional graft-linking monomer, up to 49.8% of one or more copolymerizable unsaturated monomers and from 0.1 to 10% of one or more monomers containing acidic groups; from 5 to 90% of a second shell A3 of rigid material made up of from 50 to 99.9% of a vinylaromatic monomer, up to 10% of a polyfunctional cross-linking and/or graft-linking monomer, up to 49.9% of one or more copolymerizable monomers and from 0.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Niessner, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich, Friedrich Seitz
  • Mixed oxamides
    Patent number: 5336800
    Abstract: Oxamides useful as dye intermediates have the formula ##STR1## where R.sup.1 and R.sup.2 are independently of each other hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,X is hydroxyl, nitro or a radical of the formula --NR.sup.3 R.sup.4, where R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkanoyl and R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,Z is C.sub.2 -C.sub.8 -alkylene, substituted or unsubstituted phenylene or substituted or unsubstituted naphthylene, or X--Z and R.sup.1 are, together with the nitrogen atom joining them together, the radical of the formula ##STR2## where R.sup.3 is as defined above,L is a bridge member andY is vinyl or a radical of the formula --C.sub.2 H.sub.4 --A, where A is hydroxyl or a group which is detachable under alkaline reaction conditions.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Siegel, Manfred Patsch, Knut Kessel
  • Process for the production of a multicoat finish, and an aqueous paint
    Patent number: 5334420
    Abstract: The invention relates to a process for the production of a multicoat finish, in which an aqueous basecoat is used which contains as binder a polymer which can be obtained by polymerizing in an organic solvent(A) ethylenically unsaturated monomers in the presence of(B) a polyurethane resin containing polymerizable double bondsand converting the resultant reaction product to an aqueous dispersion.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Lacke & Farben Aktiengesellschaft
    Inventors: Michael Hartung, Michael Grabbe, Peter Mayenfels
  • Oxime ether derivatives, their preparation and fungicides containing these derivatives
    Patent number: 5334577
    Abstract: Oxime ether derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or alkyl, Het is pyridyl, quinolyl, pyrimidinyl, pyrazinyl, pyridazinyl, thienyl, quinoxalinyl, isoxazolyl, benzoxazolyl or benzothiazolyl, the heterocyclic ring system being unsubstituted or substituted, and X is oxygen or sulfur, their plant-tolerated acid addition salts, metal complexes and N-oxides, and fungicides containing these compounds.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Wenderoth, Siegbert Brand, Franz Schuetz, Thomas Kuekenhoehner, Franz Roehl, Eberhard Ammermann, Gisela Lorenz
  • Production of chlorofluorocarbon-free, urethane-containing moldings having a cellular core and a compacted peripheral zone
    Patent number: 5334620
    Abstract: A process for the production of fluorochlorocarbon-free, urethane-containing, soft-elastic, semirigid or rigid moldings having a cellular core and a compacted peripheral zone and an essentially pore-free, smooth surface involves reactinga) an organic and/or modified organic polyisocyanate withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) a low-molecular-weight chain extender and/or cross-linking agent,in the presence ofd) a blowing agent,e) a catalyst,f) at least one amorphous, microporous silica gel which preferably has a mean pore diameter with a frequency of occurrence of more than 40% in the range from 0.1 to 10 nm, a pore volume of from 0.15 to 1.8 ml/g and a BET surface area of from 200 to 900 m.sup.2 /g, and, if desired, further additives andg) assistants,in a closed mold with compaction.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Horn, Ulrich Mueller, Wolfgang Hoelderich, Ulf Sattler, Rudolf Taddey, Dieter Tintelnot
  • Thermoplatic molding materials
    Patent number: 5334658
    Abstract: A thermoplastic molding material contains, based on the sum of A and B,A: from 75 to 97% by weight of a polystyrene A as a hard matrix andB: from 3 to 25% by weight of a particulate, elastomeric (co)polymer B based essentially on butadiene or its copolymers, in turn consisting of, based on B,B1: from 40 to 98% by weight of a (co)polymer B1 having a mean particle size of from 100 to 600 nm andB2: from 2 to 60% by weight of a particle blend B2 which in turn consists of, based on B2,B21: from 1 to 60% by weight of a (co)polymer B21 having a particle size of from 200 to 1,200 nm andB22: from 40 to 99% by weight of a (co)polymer B22 having a mean particle size of from 1,200 to 8,000 nm,(co)polymer B1 having an encapsulated-particle morphology and (co)polymers B21 and B22 having a cellular and/or coiled particle morphology.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Blumenstein, Peter Klaerner, Horst Schuch, Hans-Michael Walter
  • Deicing or antiicing fluids for aircraft
    Patent number: 5334323
    Abstract: Deicing/antiicing fluids for aircraft which contain essentially glycols, crosslinked polyacrylic acid, a nonionic surfactant based on alkoxylated C.sub.10 -C.sub.20 alcohols, corrosion inhibitors, a mixture of NaOH and KOH, an antioxidant and water, reduce the loss of lift by having improved runoff characteristics from the wings while giving a refreeze holdover time of not less than 30 minutes.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Schrimpf, Hans Krebs, Gert Liebold, Guenter Frey
  • Polyvinyl chloride/polyurethane foam composite elements, the productions thereof, and liquid, urethane-containing polyisocyanate mixtures which can be used to prepare the polyurethane foam
    Patent number: 5334448
    Abstract: A composite element which comprisesA) at least one top layer of polyvinyl chloride or a polyvinyl chloride-containing polymer mixture, andB) a preferably semirigid or rigid polyurethane foam, the top layer (A) or the polyurethane foam (B) or the two constituents (A) and (B) containing units of an .alpha.,.beta.-olefinically unsaturated polyester having a molecular weight factor per double bond of from 150 to 3000,a process for the production of composite elements of this type, and liquid, urethane-containing polyisocyanate mixtures based on diphenylmethane diisocyanates and higher homologs thereof and .alpha.,.beta.-olefinically unsaturated polyesters for the preparation of the polyurethane foam (B) are described.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Horn, Erhard Reich, Stefan Adams, Sarbananda Chakrabarti
  • Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use
    Patent number: 5334287
    Abstract: Graft polymers are obtainable by free radical polymerization of(A) monomers or monomer mixtures of(a) from 10 to 100% by weight of open-chain N-vinylcarboxamides(b) from 0 to 90% by weight of other, carboxyl-free monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and(c) from 0 to 5% by weight of monomers containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of(B) natural substances containing saccharide structures, such as mono-, oligo- and polysaccharides,in a weight ratio (A):(B) of from 95:5 to 20:80 and, if required, subsequent hydrolysis of the amido groups of the polymerized monomers (a) of the graft polymer with formation of amino groups, and said polymers are used as dry and wet strength agents for paper, board and cardboard.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Hartmann, Walter Denzinger, Michael Kroener, Claudia Nilz, Friedrich Linhart, Andreas Stange
  • Preparation of formic acid from carbon monoxide and water
    Patent number: 5334759
    Abstract: A process for the preparation of formic acid by the reaction of carbon monoxide with water at temperatures of from 100.degree. to 250.degree. C. and absolute from 100 to 350 bar, in which tertiary amines of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3 individually denote C.sub.1 -C.sub.14 alkyl, C.sub.3 -C.sub.8 cycloalkyl, aryl, and C.sub.7 -C.sub.16 aralkyl or together denote a 1,4-alkylene group or 1,5-alkylene group optionally mono- to tetra-substituted by C.sub.1 -C.sub.4 alkyl, provided that the total number of carbon atoms in R.sup.1, R.sup.2, and R.sup.3 is from 3 to 40,are added to the reaction mixture.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ferdinand Lippert, Arthur Hoehn
  • Preparation of 3-aminopropionitriles
    Patent number: 5334745
    Abstract: 3-Aminopropionitriles of the general formula I ##STR1## where R.sup.1,R.sup.2,R.sup.3,R.sup.4 and R.sup.5 independently of one another are each hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.8 -aminoalkyl, C.sub.1 -C.sub.8 -cyanoalkyl, C.sub.3 -C.sub.20 -cycloalkyl, C.sub.7 -C.sub.20 -aralkyl or aryl,are prepared by a process in which an amine of the general formula II ##STR2## is reacted with an acrylonitrile of the general formula III ##STR3## where the substituents have the abovementioned meanings, in a molar ratio of from 0.9:1 to 100:1 over a heterogeneous catalyst at from 40.degree. to 200.degree. C. and from 1 to 350 bar.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Brudermueller, Tom Witzel, Franz Merger
  • Stabilized polyaryl ether ketone molding compositions
    Patent number: 5334642
    Abstract: Stabilized polyaryl ether ketone molding compositions containing as essential componentsA) from 50 to 99.99% by weight of a polyaryl ether ketone prepared by electrophilic polycondensation and composed to an extent of not less than 50 mol % of units of the formula I' ##STR1## where s and t are each 0, 1, 2 or 3, T and T' are each --O-- or --CO-- and Ar is meta-phenylene, paraphenylene or two aromatic rings linked to each other in the meta or para position by a chemical bond, or the ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.6 -C.sub.20 -aryl or halogen derivatives thereof,B) from 0.01 to 4% by weight of at least one organic compound which has a base constant pk.sub.b within the range from 2 to 12 and a boiling point of higher than 300.degree. C.,C) from 0 to 50% by weight of a further thermoplastic other than A), andD) from 0 to 45% by weight of fibrous or particulate fillers or mixtures thereof.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Koch, Gerhard Heinz
  • Vat dyes
    Patent number: 5334734
    Abstract: Vat dyes for dyeing and printing cellulose material have the formula ##STR1## where P=pyranthrone structure, A=1,4-or 1,5-anthraquinonyl, V=a violanthronyl or isoviol-anthronyl radical which may carry up to 2 chlorine or bromine atoms as substitutents, R=hydrogen, the acyl radical of an aliphatic C.sub.1 -C.sub.6 -carboxylic acid or the acyl or sulfonyl radical of an aromatic carboxylic or sulfonic acid, Hal=chlorine or bromine, m=from 0 to 3, n=from 1 to 4, and p=from 0 to 3, with the proviso that the sum m+n+p is not greater than 4.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Niedenbrueck, Manfred Patsch
  • Cassette with recording medium
    Patent number: 5335130
    Abstract: A cassette having a movable closure member for housing openings and a spring in a housing recess between housing and closure member is designed with a spring having an effective thickness with respect to the housing recess receiving the spring, such that the closure member is kept at a predetermined constant distance from the housing surface.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventor: Klaus Schoettle
  • Polyurethane coating composition derived from long-chain aliphatic polyol
    Patent number: 5334650
    Abstract: A coating composition is disclosed comprising:(a) an aqueous medium,(b) a water-dispersible polyurethane resin that is the reaction product of a mixture comprising:(1) a long-chain aliphatic polyol having 18 to 60 carbon atoms,(2) a multifunctional compound having at least one active hydrogen group and at least one water-stabilizing group,(3) an active hydrogen-containing capping and/or chain extending agent, and(4) a polyisocyanate, and(c) an aminoplast crosslinking agent.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Corporation
    Inventors: Paul Serdiuk, Alan L. Steinmetz
  • Production of foam boards of high compressive strength using a blowing agent mixture
    Patent number: 5334337
    Abstract: Foam boards of high compressive strength are produced by extruding a mixture of a styrene polymer and from 5 to 16% by weight of a blowing agent which containsa) from 3 to 70% by weight of an alcohol or ketone having a boiling point of from 56.degree. to 100.degree. C.,b) from 0 to 50% by weight of carbon dioxide,c) from 0 to 88% by weight of a saturated C.sub.3 - to C.sub.5 -hydrocarbon,d) from 2 to 90% by weight of at least one fluorinated hydrocarbon which has a boiling point of from -30 .degree. to +30.degree. C.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: August 2, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Voelker, Gerhard Alicke, Manfred Weilbacher, Manfred Weilbacher, Reinhold Weber, Horst Schuch