Patents Assigned to BASF
  • Patent number: 6605235
    Abstract: The invention relates to cholesteric layered material having an improved color impression, to pigments prepared therefrom, and to a process for the production and use thereof.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: August 12, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Meyer, Frank Prechtl, Norbert Schneider, Peter Heilmann, Volker Koch, Robert Parker, Volker Richter, Peter Schuhmacher
  • Patent number: 6605192
    Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: August 12, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Theis, Till Adrian, Bernd Bessling, Hans Hasse, Frans Vansant
  • Patent number: 6605665
    Abstract: A process for the preparation of fiber-reinforced moldings for motor vehicles wherein the molding comprises a) from 1 to 96.86% by weight of at least one polycondensate, b) from 1 to 12% by weight of at least one particulate graft copolymer whose soft phase has a glass transition temperature below 0° C. and whose median particle size is from 50 to 1000 nm, c) from 1 to 12% by weight of at least one copolymer made from the following monomers, c1) from 50 to 90% by weight of at least one vinylaromatic monomer, and c2) from 10 to 50% by weight of acrylonitrile and/or methacrylonitrile, based in each case on component c, d) from 0 to 20% by weight of e) from 0.01 to 15% by weight of a polycarbonate, f) from 0.01 to 2% by weight of a carbon black, g) from 0 to 12% by weight of a polymer other than component B, h) from 0 to 20% by weight of a polyester other than component A, i) from 0.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: August 12, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Fischer, Manfred Knoll, Christophe Ginss, Stephan Berz
  • Patent number: 6605662
    Abstract: A process for preparing aqueous polymer dispersions comprises first of all subjecting ethylenically unsaturated monomers to free-radical aqueous emulsion polymerization to prepare an aqueous dispersion of a polymer 1 having a glass transition temperature Tg1, then dissolving further, comparatively hard monomers in the dispersed particles of the polymer 1, and subsequently carrying out free-radical polymerization of said monomers dissolved in said particles.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: August 12, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Cheng-Le Zhao, Joachim Roser, Eckehardt Wistuba, Bernhard Schuler, Klemens Mathauer
  • Patent number: 6605631
    Abstract: Compounds of the general formula I where the index and the substituents have the following meanings: n is 0 or 1 to 4; X is O or S; Y is a five-membered heteroaromatic ring; R1 is nitro; cyano; halogen; alkyl; haloalkyl; alkoxy; haloalkoxy; alkylthio; phenyl or phenoxy; R2 is hydrogen; alkyl, alkenyl or alkynyl; or a saturatedy,or unsaturated ring which, in addition to carbon atoms, can also contain hetero atoms as ring members are described.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: August 12, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Kirstgen, Wassilios Grammenos, Herbert Bayer, Reinhard Doetzer, Hartmann Koenig, Klaus Oberdorf, Hubert Sauter, Horst Wingert, Gisela Lorenz, Eberhard Ammermann, Volker Harries
  • Publication number: 20030149192
    Abstract: The refinish compositions contain an acetoacetate resin based on a monomeric polyol or a hydroxy-functional oligomer of such a polyol; a blocked polyamine (polyketimine and/or polyaldimine), pigment, and alkyd polymer. The alkyd is not reactive toward the acetoacetate resin or the blocked polyamine. The refinish compositions may be prepared from an intermix system that has a plurality of color bases and an unpigmented component.. Each color base includes the alkyd resin and one or more pigments dispersed with the alkyd resin. The unpigmented component includes at least one of the acetoacetate-functional resin or the blocked polyamine. A drier for the alkyd resin may be included in one of the components or in a separate, additional component.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Applicant: BASF CORPORATION
    Inventors: Lawrence E. Thieben, John C. Goan
  • Patent number: 6602972
    Abstract: Self crosslinking polyurethane comprising lateral or terminal ethenylarylene groups, produced by reacting a polyurethane pre-polymer with an adduct, obtained by reacting an ethenylarylene mono-isocyanate with a compound containing hydroxyl groups or amino groups such that at least one group that is reactive to isocyanate remains in the adduct. Also, a self crosslinking graft copolymer containing at least one (meth)acrylate copolymer and at least one polyurethane produced by dispersing at least one self crosslinking olefinically unsaturated polyurethane comprising lateral or terminal ethenylarylene groups and blocked isocyanate groups in an aqueous medium and by radical copolymerization of a mixture of a monomer comprising at least one functional group that is reactive to isocyanate with a monomer that can be copolymerised with the mixture.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: August 5, 2003
    Assignee: BASF Coatings AG
    Inventors: Stephan Schwarte, Egon Wegner, Harald Angermüller
  • Patent number: 6602825
    Abstract: Novel 1-aryl-4-thiotriazines I where the variables have the following meanings: R1=H, NH2, C1-C4-alkyl, C1-C4-haloalkyl; R2=H, NH2, C1-C4-alkyl, C1-C4-haloalkyl; R3=H, halogen; R4=CN, halogen; Y=nitrogen, the methine group or, together with R5, a bridge >C—O—C(R6)═N—; R5=one of the meanings given in the description; R6=H, halogen, substituted or unsubstituted C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-alkynyloxy, C3-C6-cycloalkyl or C3-C6-cycloalkoxy; their salts and enol ethers, the preparation of the novel compounds I and their use as herbicides.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Olaf Menke, Ingo Sagasser, Gerhard Hamprecht, Robert Reinhard, Cyrill Zagar, Karl-Otto Westphalen, Martina Otten, Helmut Walter
  • Patent number: 6603055
    Abstract: Bi-component superabsorbent materials are disclosed. The superabsorbent materials comprise a mixture of about 20% to about 40%, by weight, poly(vinylamine) polymer or other basic resin and about 60% to about 80%, by weight of an acidic water-absorbing polymer, like polyacrylic acid.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael A. Mitchell, Thomas W. Beihoffer, Raffat S. Sultana
  • Patent number: 6603014
    Abstract: The use of compounds of the formula I in which R1 and R2 are identical or different, electron-withdrawing radicals chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl and optionally substituted aminocarbonyl, R3 is a hydrogen atom, a C1-C20-alkyl radical or a C3-C20-cycloalkyl radical or a radical of the formula —CH2—CH2—SO3—M+, where M+ is a cation, X is the divalent radical of oxygen, sulfur or the radical where R3 is as defined above, is the divalent radical of the formula II or III, which forms a fused system with the radical of the formula I where R4 can be bonded one or more times to the benzylidene ring I or naphthylidene ring II, and is hydrogen, alkyl, cycloalkyl, alkyloxy, cycloalkyloxy, alkoxycarbonyl, mono- or dialkylaminocarbonyl, alkylamino, dialkylamino, each having up to 20 carbon atoms, and also cyano, amino and SO3—M+, where M+ is a cation,
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Habeck, Frank Prechtl, Thomas Wünsch, Horst Westenfelder
  • Patent number: 6602552
    Abstract: A method for a low temperature cure for a coating composition comprising: applying to a substrate a low temperature curing coating composition consisting essentially of a film forming component consisting essentially of a non-carbamate functional polymeric component selected from the group consisting of polyester, silicone modified polyester, polyurethane, acrylic, alkyd, epoxy, polyamide, phenolic and polysilane polymers and mixtures thereof; a crosslinking component to crosslink the non-carbamate functional polymeric component; a catalyst selected from the group consisting of Lewis acids, perflouracetic acid, methane sulfonic acid catalyst and mixtures thereof; and additives selected from the group consisting of solvents, flow control agents, pigments, flexibilizing resins, surfactants, waxes, wetting agents, plasticizers, anti-oxidants, UV light absorbers, and a mixture thereof, and subjecting the coated substrate to a cure temperature of between 280° F. and 450° F.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: August 5, 2003
    Assignee: BASF Corporation
    Inventors: Edward J. Daraskevich, Ronald J. Lewarchik, Mark P. Slawikowski, Sebastian E. McCann
  • Patent number: 6603045
    Abstract: Phosphonium salts are prepared by reacting an alkanol with triarylphosphine and sulfonic acids in a solvent.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Christoph Wegner, Joachim Paust, Michael John
  • Patent number: 6603056
    Abstract: Multicomponent superabsorbent gel particles are disclosed. The multicomponent particles comprise at least one acidic water-absorbing resin and at least one basic water-absorbing resin. Each particle contains at least one microdomain of the acidic resin in contact with, or in close proximity to, at least one microdomain of the basic resin.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas W. Beihoffer, Michael A. Mitchell
  • Patent number: 6603017
    Abstract: A novel process for preparing the compounds of the formula I where: n is 0, 1 or 2; R1, R2 are C1-C6-alkyl; R3, R4, R5 are hydrogen or C1-C6-alkyl, or R4 and R5 together form a bond; R6 is Cl, Br, which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Rack, Norbert Götz, Helmut Hagen, Wolfgang von Deyn, Ernst Baumann, Rene Lochtman, Joachim Gebhardt
  • Patent number: 6602950
    Abstract: A hydrophilic, highly swellable hydrogel based on (co)polymerized monomers or based on graft (co)polymers and prepared by a) free-radically (co)polymerizing one-or more hydrophilic monomers or graft (co)polymerizing one or more hydrophilic monomers onto a grafting base, the average degree of neutralization of the acid-functional monomers being from 0 to 40 mol %, b) comminuting the acidic hydrogel, c) neutralizing the acidic hydrogel to an ultimate degree of neutralization of 50-85 mol % by adding a neutralizing agent, d) drying, grinding and sieving the hydrogel particles characterized by a centrifuge retention and a vertical absorption swell height, each having a specified minimum.value, coupled with an extractables content having a specified maximum value or a centrifuge retention and a vertical absorption swell height, each having a specified minimum value and an extractables content having a specified maximum value.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 5, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Dentler, Rüdiger Funk, Norbert Herfert, Mariola Wanior, Friedrich Engelhardt
  • Publication number: 20030144981
    Abstract: A remote research system, comprising: a central laboratory site equipped to be used for chemical research tests; one or several laboratory robots for performing chemical research tests; a central processing unit (CPU); one or several workstations linked to said central processing unit and set up to control said laboratory robots; one or several cameras for detecting actions of said laboratory robots when performing one of said chemical research tests, said one or several cameras being linked to said central processing unit via said one or several workstations; one or several remote user workstations linked to said central processing unit via a computer network and set up to allow remote user access to chemical research tests performed in said central laboratory site, the execution of a test performed being transmitted by said one or several cameras via said central processing unit and said computer network to said one or several remote user workstations.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Thomas Lorenz, Stephan Lehmann, Joachim Hadeler, Rudiger Iden, Upali Bandara
  • Publication number: 20030144386
    Abstract: Mixtures of finely divided solid hydrogel-forming polymers and of hydraulically setting building materials, wherein not more than 2% by weight of said finely divided hydrogel-forming polymers are more than 200 &mgr;m in particle size. The finely divided solid hydrogel-forming polymers used are in particular crosslinked polymers having acid groups.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 31, 2003
    Applicant: BASF Aktiengesellschaft
    Inventors: Joachim Pakusch, Hans-Jurgen Denu, Ekkehard Jahns, Rudiger Funk, Ulrike Hoss
  • Patent number: 6599996
    Abstract: In a process for the transition-metal-catalyzed preparation of polymers having a syndiotactic or predominantly syndiotactic structure from vinylaromatic monomers and a process for preparing block copolymers from vinylaromatic monomers and olefinically unsaturated polar monomers, use is made of transition metal compounds of the formula (I) where the substituents and indices have the following meanings: M is scandium, yttrium, lanthanum or a lanthanide metal, R′″ is &mgr;-C3-C20-alkyl, L is a low molecular weight organic compound having Lewis basicity, where n=1 or 0 and at least one n in (I) is 0, m is 1 or 2.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 29, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Geprägs, Joachim Queisser, Jun Okuda, Kai Carsten Hultzsch, Klaus Beckerle
  • Patent number: 6599755
    Abstract: The present invention relates to a method of depositing small amounts of liquid on a substrate (13) by using a pipette tip (1), which is connected to a flexible delivery line (2). Liquid is taken up by expanding the volume in the delivery line (2), and liquid is ejected by exposing the line to an impulse that is transmitted to the liquid contained in it.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: July 29, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eipel, Stefan Emig, Siegfried Hauer, Walter Weishaar
  • Patent number: 6599860
    Abstract: Herbicidally active haloalkyl-substituted 3-(4,5-dihydroisoxazol-3-yl)benzoylcyclohexenones of the formula I in which R1 to R3 and R5 to R14 are as defined in the description and R4 is C1-C4-haloalkyl are described.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: July 29, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Steffen Kudis, Ernst Baumann, Wolfgang von Deyn, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Karl-Otto Westphalen, Helmut Walter