Patents Represented by Attorney Keil & Weinkauf

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  • Method for agglomerating dispersed rubber
    Patent number: 6812283
    Abstract: A process for the agglomeration of at least one rubber (A), dispersed in an aqueous phase, by the addition of a dispersion of at least one agglomerating polymer (B) in aqueous phase, in which the agglomerating polymer B used is one containing substantially no free acid groups and the agglomeration is carried out in the presence of at least one basic electrolyte.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Wil Duijzings, Sabine Oepen, Norbert Niessner, Michael Breulmann, Hardy Korb
  • Preparation of a metal-containing supported catalyst or a supported catalyst component by impregnation of a support material
    Patent number: 6812185
    Abstract: In a process for preparing a metal-containing supported catalyst or a metal-containing supported catalyst component by impregnation of a support material with an impregnation solution comprising the metal component, the impregnation solution flows through the support material.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: November 2, 2004
    Assignee: Basell Polyolefine GmbH
    Inventors: David Fischer, Wolfgang Bidell, Ulrich Moll, Joachim Rösch, Franz Langhauser, Roland Hingmann, Heike Gregorius, Carsten Süling, Günther Schweier
  • Polyamide
    Patent number: 6812322
    Abstract: A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
  • Method for the separation of formaldehyde from a reaction mixture containing polyols by the addition of solvents before and/or during the distillation
    Patent number: 6809224
    Abstract: Formaldehyde is removed by distillation from reaction solutions containing a methlolated alkanal which was obtained from the reaction of formaldehyde with an alkanal which has at least one acidic hydrogen atom &agr; to the carbonyl function or from the reaction of a 2-alkylacrolein or acrolein with water and formaldehyde, by a process in which this reaction was carried out in the presence of catalytic amounts of organic amine. The process permits the improved removal of formaldehyde from the reaction mixture and furthermore facilitates the hydrogenation of the alkanals thus obtained to give polyols.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 26, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Dernbach, Detlef Kratz, Achim Stammer, Gerhard Schulz
  • Use of anticoagulant agents in the extracorporeal treatment of blood
    Patent number: 6809076
    Abstract: The present invention relates to the use of anticoagulant agents for the treatment of individuals with extracorporeal circulation as anticoagulant during the extracorporeal circulation and for prophylaxis of vascular complications after the extracorporeal circulation. It is thus possible in particular to treat individuals with chronic renal insufficiency requiring regular hemodialysis and moreover prevent vascular complications which, on use of conventional anticoagulants, result in a high morbidity and mortality rate for dialysis patients treated longer-term.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: October 26, 2004
    Assignee: Abbott GmbH & Co. KG
    Inventors: Rudi Scherhag, Peter Bacher, Christopher Parow, Hans-Ulrich Esslinger, Florian Abel
  • Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers
    Patent number: 6802882
    Abstract: The use of inorganic or organic polyacids for the treatment of inorganic fertilizers, in particular the use of the polyacids as a mixture with at least one nitrification inhibitor for the treatment of inorganic fertilizers; the use of selected pyrazole derivatives as nitrification inhibitor in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations, as well as the corresponding treated inorganic fertilizers per se; and novel pyrazole derivatives which can be used as nitrification inhibitors in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations are described.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: October 12, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Barth, Norbert Rieber, Randall Evan Gold, Jürgen Dressel, Klaus Erhardt, Klaus Horchler von Locquengh, Edgar Leibold, Stefan Rittinger
  • Method for the polymerization of olefins
    Patent number: 6803431
    Abstract: The polymerization of olefins is carried out in the presence of catalysts comprising at least one complex of a transition metal with a tridentate macrocyclic ligand which additionally bears at least one functional substituent and, if desired, one or more activator compounds. A catalyst system comprising at least one transition metal complex as set forth above and at least one activator compound is also provided.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: October 12, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Shahram Mihan, Dieter Lilge, Günther Schweier, Randolf Köhn, Guido Seifert
  • Method for producing maleic acid anhydride
    Patent number: 6803473
    Abstract: In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: October 12, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Jens Weiguny, Sebastian Storck, Andreas Tenten, Wilhelm Ruppel
  • Polyureas and water-soluble or water-dispersible polymeric salts
    Patent number: 6800276
    Abstract: The present invention relates to polymers, polyureas and water-soluble or water-dispersible polymeric salts, a cosmetic or pharmaceutical composition which comprises at least one such polymer, and to the use of the polymers.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 5, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel
  • Process for the production of aqueous polymer dispersions
    Patent number: 6800699
    Abstract: Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y—M—E, E standing for nitrogen, M for a transition metal of groups 7 to 10 of the periodic system of the elements and Y for oxygen, sulfur, nitrogen or phosphorus, and which possesses no hydrophilic groups in its ligand system.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: October 5, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Schmid, Mubarik Mahmood Chowdhry, Marc Oliver Kristen, Stefan Mecking, Florian M. Bauers
  • Recording material comprising silicone rubber and iron oxides for producing relief printing plates by laser engraving
    Patent number: 6797455
    Abstract: A description is given of a laser-engravable recording material for producing relief printing plates, in particular for producing flexographic printing plates, comprising a dimensionally stable support and a recording layer comprising silicone rubbers and inorganic ferrous solids and/or carbon black as absorbers for laser radiation; of processes for producing relief printing plates by laser engraving such recording materials; and of relief printing plates having a printing relief comprising silicone rubbers and inorganic ferrous solids and/or carbon black.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: September 28, 2004
    Assignee: BASF Drucksysteme GmbH
    Inventors: Margit Hiller, Roland Roos, Heinz Faulhaber
  • Process for making &ggr;-alkoxyamines
    Patent number: 6794530
    Abstract: A process for preparing &bgr;-alkoxynitriles by reacting &agr;,&bgr;-unsaturated nitriles with monohydric, dihydric or trihydric alcohols in the presence of basic catalysts at from −20 to +200° C. comprises using a diazabicycloalkene catalyst of the formula I where from 1 to 4 hydrogen atoms may be independently replaced by the radicals R1 to R4, in which case R1, R2, R3, R4 are each C1-20-alkyl, C6-20-aryl or C7-20-arylalkyl, and n and m are each an integer from 1 to 6.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Friedrich, Heinz-Josef Kneuper, Karsten Eller, Andreas Henne, Rolf Lebkücher
  • Nucleic acid fragment and vector comprising a halogenase, and a process for halogenating chemical compounds
    Patent number: 6794170
    Abstract: The invention relates to a process halogenation, which comprises halogenating a chemical compound in the presence of a halogenase, where the halogenase is (a) encoded by the sequence specified in SEQ ID NO: 1 or a sequence derived therefrom on the basis of the degeneracy of the genetic code, or is (b) encoded by a nucleic acid sequence which codes for a functional fragment of (a) or (c) by a sequence which hybridizes with (a) or (b) under standard conditions, or is (d) encoded by a sequence which has more than 30% identity or more than 60% similarity with the sequence specified under (a).
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Pelzer, Petra Huber, Roderich Suessmuth, Juergen Recktenwald, Dorothée Heckmann, Wolfgang Wohlleben
  • Layered composite material with an intermediate layer made from a thermoplastic
    Patent number: 6794019
    Abstract: A layered composite material comprises a backing made from a thermoplastic polymer, an intermediate layer arranged thereupon, and a heat-cured layer applied to the intermediate layer, where the bonding material of the intermediate layer is a thermoplastic. The intermediate layer and the backing may be composed of the same thermoplastic. The intermediate layer and the heat-cured layer may also be applied to both sides of the backing. The layered composite material may furthermore comprise a decorative layer between the intermediate layer and the heat-cured layer.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: September 21, 2004
    Assignee: Basell Polyolefine GmbH
    Inventors: Klaus Müller, Klaus Klemm
  • Continuous preparation of alkenyl compounds
    Patent number: 6794546
    Abstract: A continuous process for the preparation of O—, S— and N-alkenyl compounds by reaction of the corresponding OH, SH or NH compound with an acetylene in the liquid phase in the presence of basic alkali or alkaline earth metal compounds at from 40 to 300° C. and from 0.11 to 5 MPa absolute comprises continuously feeding the corresponding OH, SH or NH compound and the acetylene and operating at a conversion of the corresponding OH, SH or NH compound of ≧90%.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Pinkos, Rudolf Erich Lorenz
  • Use of melamine resin fibers and insulating materials based on melamine resin fibers and polyalkylene terephthalate fibers
    Patent number: 6793772
    Abstract: The disclosure is directed to a method of using melamine resin fibers, to an insulating material comprising a) from 5 to 95% by weight of melamine resin, and b) from 5 to 95% by weight of polyalkylene terephthalate fibers, and to processes for producing it.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Berbner, Karl Ott
  • Synergistically active herbicidal mixtures
    Patent number: 6794335
    Abstract: A composition which comprises a) at least one sulfonylurea of the formula I  wherein the radicals R1 to R5 and the index n are as defined in the specification, or an environmentally compatible salt of the sulfonylurea, and b) at least one herbicidal compound selected from groups b1 to b41 as defined in the specification, or an environmentally compatible salt of the herbicidal compound, and which exhibits a synergistic herbicidal effect.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Max Landes, Bernd Sievernich, Elmar Kibler, Wessel Nuyken, Helmut Walter, Karl-Otto Westphalen, Horst Mayer, Egon Haden, Christiaan Mulder, Alfons Schönhammer, Gerhard Hamprecht
  • Supported cobalt catalysts for nitrile hydrogenations
    Patent number: 6790996
    Abstract: The invention relates to a process for preparing primary amines by hydrogenating nitrites in the presence of a catalyst comprising cobalt and optionally, in addition, nickel and also at least one further doping metal on a particulate support material, the cobalt and, if present, the nickel having an average particle size of from 3 to 30 nm in the active catalyst. The invention further relates to the use of the catalyst in a process for preparing primary amines by hydrogenating nitrites.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: September 14, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Ansmann, Christoph Benisch
  • Core/jacket catalyst molding
    Patent number: 6790806
    Abstract: The core/jacket catalyst molding with a core made from an inorganic support material and with a jacket made from a catalytically active material can be prepared by coextruding an aqueous molding composition which comprises the support material or a precursor thereof, with an aqueous molding composition which comprises the catalytically active material or a precursor thereof, then drying the coextrudate, and then calcining the dried coextrudate.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: September 14, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Hesse, Rainer Anderlik, Hans-Gerhard Fritz, Jochen Hammer
  • Process for the catalytic cleavage of lactones
    Patent number: 6790987
    Abstract: The present invention relates to a process of cleaving lactones optionally having functional groups to give carboxylic acids, where the corresponding lactone is reacted with hydrogen with catalysis by a compound of a metal of group VIII of the Periodic Table of the Elements which has been modified with organophosphines. The process is preferably carried out in a two-phase system using catalysts which have water-soluble phosphine ligands. The reaction is particularly suitable for cleavage 2-ethylidene-6-hepten-5-olide to give ethylidene-6-heptenecarboxylic acid or isomers thereof. This carboxylic acid can be hydrogenated in a manner known per se to give 2-ethylheptanoic acid.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: September 14, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Arno Behr, Volker Brehme