Patents Assigned to BASF
  • Process for the purification of phosphonium salts
    Patent number: 6630605
    Abstract: The invention relates to a process for the purification of phosphonium salts in which a solution of the crude phosphonium salt is passed over a bed of a cation exchange resin in salt form or of an adsorber resin, the resin is washed with a polar protic solvent in the case of the cation exchange resin and with an electrolyte solution and a nonpolar solvent in the case of the adsorber resin, and the phosphonium salt is eluted from the cation exchange resin with an electrolyte solution or from the adsorber resin with a polar solvent.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: October 7, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Christoph Wegner, Daniela Klein
  • Utilization of tricyclodecandimethanol for producing multilayer lacquers
    Patent number: 6630211
    Abstract: The invention relates to the utilization of tricyclodecandimethanol for producing multilayer lacquers, in particular, multilayer transparent lacquer coatings, and as a binding agent in multilayer lacquers. The invention als relates to a coating substrance, especially transparent lacquer, containing at least one binding agent, at least one cross-linking agent and tricylodecandimethanol. In addition, the invention relates to a method for improving the adherence of the intermediate layer in multilayer transparent lacquer coatings.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: October 7, 2003
    Assignee: BASF Coatings AG
    Inventors: Hubert Baumgart, Heinz-Peter Rink, Ulrike Röckrath, Thomas Farwick
  • Use of graft copolymers for the production of laser-engravable relief printing elements
    Patent number: 6627385
    Abstract: Graft copolymers are used for the production of laser-engravable relief printing plates, the graft copolymers being obtained by free radical polymerization of vinyl esters in the presence of polyalkylene oxides and subsequent hydrolysis of the ester function. Processes for the production of transparent flexographic printing plates by means of laser engraving using said graft copolymers are described.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 30, 2003
    Assignee: BASF Drucksysteme GmbH
    Inventors: Margit Hiller, Alfred Leinenbach, Uwe Stebani, Wolfgang Wenzl
  • Method for determining the shade stability of lacquers
    Patent number: 6628393
    Abstract: In a method of determining the shade stability of paints, the total color difference &Dgr;E(FT) between the color at the film thickness FT and the color at a predetermined film thickness FT0 is measured for different film thicknesses FT. Subsequently, the slope &sgr;(FT) of the plot &Dgr;E(FT) is determined, which represents a useful parameter for the shade stability. Alternatively to &sgr;(FT), it is also possible to determine the limiting film thickness FTlim at which the total color difference &Dgr;E(FT) passes below a predetermined limit. The method of determining the shade stability is additionally employed in order to optimize paint formulations.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: September 30, 2003
    Assignee: BASF Coatings AG
    Inventors: Bernd Biallas, Wolfgang Duschek, Werner Rotz, Harald Berlin
  • Cyclopropyl-anellated 3-(4,5-dihydroisoxazol-3-yl)-substituted benzoylpyrazoles
    Patent number: 6627581
    Abstract: Cyclopropyl-fused 3-(4,5-dihydroisoxazol-3-yl)-substituted benzoylpyrazoles of the formula I in which the variables are as defined in the description, and their agriculturally useful salts are described. The compounds have herbicidal action.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 30, 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
  • Depth-type filter for killing microorganisms and inactivating viruses and its use
    Patent number: 6627088
    Abstract: Shaped articles which are suitable as biocidal depth-type filters and consist of fibrous materials and particles, embedded therein, of crosslinked crospovidone-iodine or crospovidone-hydrogen peroxide.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: September 30, 2003
    Assignees: BASF Aktiengesellschaft, Schenk Filterbau GmbH
    Inventors: Jörg Breitenbach, Bernhard Fussnegger, Siegfried Lang, Dietmar Oechsle
  • Aqueous dispersions of acrylate modified alkyd resins and use thereof
    Patent number: 6627700
    Abstract: Aqueous dispersion of an acrylate-modified alkyd resin, preparable in the presence of at least one water-miscible diol by (1) dispersing in water at least one alkyd resin containing pendant and/or terminal allyloxy groups, (2) graft copolymerizing a mixture of methacrylic acid and at least one further, carboxyl-free olefinically unsaturated monomer in dispersion 1, and (3) once or n times graft copolymerising (3.1) at least one olefinically unsaturated monomer which is free from acid groups and/or (3.2) at least one mixture of at least one olefinically unsaturated monomer which contains acid groups and at least one olefinically unsaturated monomer which is free from acid groups, in dispersion 2 or 2 to n−1, with the proviso that in step (3) or (n) of the process, acid groups are incorporated in a total amount to not more than 90 mol % of the amount of acid groups incorporated in step (2) of the process.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: September 30, 2003
    Assignee: BASF Coatings AG
    Inventors: Vijay Kadambande, Heinz-Peter Rink
  • Compositions containing highly viscous polyisocyanates
    Patent number: 6627726
    Abstract: The invention provides a composition for producing surface coatings combining improved hardness, scratch resistance and acid resistance with good reflow behavior, a process for preparing such a surface coating, and for the use of polyisocyanatoisocyanurates having a functionality of more than 3.5 and a viscosity at 23° C. of more than 3500 to produce surface coatings.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: September 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Günter Mohrhardt, Hans Renz, Ulrich Poth, Hubert Baumgart, Simone Bitter
  • Preparation of pure triethylenediamine
    Patent number: 6627756
    Abstract: Pure triethylenediamine (TEDA) is prepared by vaporizing TEDA, introducing the gaseous TEDA into a liquid solvent and subsequently crystallizing the TEDA from the solution obtained in this way.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: September 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Hartmut Riechers, Arthur Höhn, Joachim Simon, Ortmund Lang, Hartmut Schoenmakers, Matthias Rauls, Koen Claerbout
  • Use of fluorescent dyes for surface analysis
    Patent number: 6627455
    Abstract: Fluorescent dyes bearing at least one reactive group capable of reaction with nucleophilic groups are used for the qualitative and, if desired, quantitative fluorescence-analytical determination of the surface adsorption of compounds bearing amino and/or imino groups.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: September 30, 2003
    Assignee: Basf Aktiengesellschaft
    Inventors: Ralf Nörenberg, Wolfgang Schrof, Norbert Mahr
  • Polymers based on fluoranthene and their use
    Publication number: 20030181617
    Abstract: Polymers comprising repeating units of the formula I 1
    Type: Application
    Filed: March 4, 2003
    Publication date: September 25, 2003
    Applicant: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Yvonne Heischkel, Horst Weiss
  • Water-soluble carbamate materials
    Patent number: 6624279
    Abstract: The invention provides water-soluble, &bgr;-hydroxy carbamate-functional materials and coating compositions, especially waterborne coating compositions, containing the carbamate-functional materials. The invention further provide a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: September 23, 2003
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, David J. Law, Patricia A. Herrel
  • OLIGOMERIC AND HIGH-MOLECULAR CONVERSION PRODUCTS OF ALLOPHANIC ACID ESTERS WITH NUCLEOPHILIC COMPOUNDS AND LOW-MOLECULAR, OLIGOMERIC AND HIGH-MOLECULAR COMPOUNDS WITH ALLOPHANATE SIDE AND/OR TERMINAL GROUPS, AND THE USE THEREOF
    Patent number: 6624280
    Abstract: Oligomeric and high molecular mass products of reaction of alkyl and aryl allophanates with nucleophilic compounds, and also low molecular mass, oligomeric and high molecular mass compounds containing lateral and/or terminal allophanate groups, and also the use of the reaction products and/or of the compounds in coating compositions, adhesives and sealing compounds or for producing films.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: September 23, 2003
    Assignee: BASF Coatings AG
    Inventors: Heinz-Peter Rink, Werner Jung, Ulrike Röckrath, Thomas Savino
  • Waterborne coating compositions containing materials dispersed with water-soluble carbamate materials
    Patent number: 6624241
    Abstract: The invention provides an aqueous coating composition containing a dispersed, emulsified, or dissolved material (organic compound, resin, or polymer), in which the material is dispersed, emulsified, or dissolved with a water-soluble, carbamate-functional material. The invention further provides a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: September 23, 2003
    Assignee: BASF Corporation
    Inventors: Robert D. Weise, Walter H. Ohrbom, Patricia A. Herrel, David J. Law
  • Process for the epoxidation of an organic compound with oxygen or an oxygen-delivering compounds using catalysts containing metal-organic frame-work materials
    Patent number: 6624318
    Abstract: The present invention relates to a process for the reaction of at least one organic compound with one oxygen-delivering substance, for example a hydroperoxide, in the presence of at least one catalyst containing a metal-organic framework material comprising pores and a metal ion and an at least bidentate organic compound, said bidentate organic compound being coordinately bound to the metal ion. Further, the present invention is directed to the products being obtainable by the process according to the invention.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 23, 2003
    Assignees: BASF Aktiengesellschaft, The Regents of the University of Michigan
    Inventors: Ulrich Müller, Lisa Lobree, Michael Hesse, Omar M. Yaghi, Mohamed Eddaoudi
  • Polyesters blocked with isomeric nonanols, method for producing them and use thereof as softeners
    Patent number: 6624285
    Abstract: Polyesters suitable as plasticizers and obtainable by reacting aliphatic dicarboxylic acids, neopentyl glycol, at least one other diol and a nonanol mixture, where the nonanol mixture is mainly composed of 1-nonanol, of monomethyloctanols, of dimethylheptanols and of monoethylheptanols. The nonanol mixture is also described, as is the use of the plasticizers.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Jürgen Holzmann, Boris Breitscheidel, Walter Disteldorf, Christiane Haller, Bernd Morsbach
  • Surface active random radical (co)polymer and dispersion method for using the same
    Patent number: 6624219
    Abstract: The present invention relates to a set of (co)polymers, dispersion formulations, solid solutions and formulation conditions able to disperse a dye selected from the group of a monoazo dye, quinophthalone dye and an anthraquinone dye in a stable nanoparticular form in an aqueous medium.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: September 23, 2003
    Assignees: BASF Aktiengesellschaft, SYMYX Technologies, Inc.
    Inventors: Robert Heger, Wolfgang Schrof, Michael Seufert, Helmut Auweter, Walter Mächtle, Rüdiger Iden, Dieter Horn, Ralph Nielsen, Eric Carlson, Chang Han-Ting, Sigrid Kuebler, Petro Miroslav
  • Continuous manufacture of superabsorbent/ion exchange sheet material
    Patent number: 6623576
    Abstract: A continuous sheet having a combination of acidic and basic water-absorbing resin particles that are essentially not neutralized and can be continuously manufactured on conventional papermaking apparatus, using a wet, dry, or wet-dry process to manufacture a water-absorbent sheet-like substrate containing 50%-100% by weight of the combination of acidic and basic water-absorbent particles. The acidic and basic essentially unneutralized resins can be contained in the sheet material articles of the present invention as separate acidic and basic resin particles, or as multicomponent particles containing both the acidic and basic resins. The sheet materials can be manufactured having new and unexpected structural integrity, with little or no shakeout or loss of superabsorbent particles during or after manufacture while exhibiting exceptional water absorption and retention properties.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael A. Mitchell, Mark Anderson, Thomas W. Beihoffer
  • 3-[Benz(ox/thi)azol-7-yl]-1h-pyrimidine-2,4-diones
    Patent number: 6624119
    Abstract: The invention relates to herbicidally effective 3-{benz(ox/thi)azol-7-yl}-1H-pyrimidine-2,4-diones of formula (I) wherein X=oxygen or sulphur, Y=oxygen or sulphur; Z=chemical bond, C1-C4-alkylene, O, S, SO, SO2; R1=H, NH2, C1-C6-alkyl, C1-C6-alkyl halide; R2=H, halogen, C1-C6-alkyl, C1-C6-alkyl halide, C1-C6-alkylthio, C1-C6-alkylsulfinyl or C1C6-alkylsulfonyl; R3=H, halogen, C1-C6-alkyl; R4=H, halogen; R5=CN, halogen, C1-C6-alkyl, C1-C6-alkyl halide, C1-C6-alkoxy or C1-C6-halogenalkoxy; R6=H, C3-C7-cycloalkyl containing a 3 to 7-membered saturated heterocyclyl and one or more oxygen and/or sulphur atoms, whereby each heterocyclic ring may contain a carbonyl or thiocarbonyl ring member. The invention also relates to the agriculturally usable salts of the compounds of formula (I).
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Reinhard, Gerhard Hamprecht, Peter Schäfer, Cyrill Zagar, Martina Otten, Karl-Otto Westphalen, Helmut Walter, Olaf Menke
  • Method of gas phase catalytic oxidation to give maleic acid anhydride
    Patent number: 6624315
    Abstract: A process for the preparation of maleic anhydride by heterogeneously catalyzed gas-phase oxidation in a reactor with feed for the reaction mixture at one end of the reactor and discharge of the product mixture at the opposite end of the reactor, and with devices for dissipating the heat of reaction which are arranged in the reactor interior and through which a heat-exchange medium flows and which are designed as heat-exchanger plates.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Zehner, Otto Machhammer, Claus Hechler, Alexander Weck, Gerhard Olbert, Uwe Stabel