Patents Assigned to BASF
  • Method for the anionic polymerisation of oxiranes
    Publication number: 20070100097
    Abstract: Process for preparing homopolymers of oxiranes, or for preparing copolymers of oxiranes and comonomers, via anionic polymerization in the presence of an alkali metal compound and of an organylaluminum compound, which comprises avoiding any use of crown ethers or of cryptands during the polymerization.
    Type: Application
    Filed: May 10, 2004
    Publication date: May 3, 2007
    Applicant: BASF AKTIENGESELLSCHAFT Patents, Trademarks and Licenses
    Inventors: Philippe Desbois, Alain Deffieux, Stephane Carlotti, Cyrille Billouard
  • Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid
    Patent number: 7211692
    Abstract: A process for the long-term operation of a two-stage heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid, in which the temperature of the fixed catalyst beds is increased over the time and the gas phase partial oxidation is interrupted from time to time and an oxygen-containing gas mixture is conducted through the fixed catalyst beds at elevated temperature of the fixed catalyst beds.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 1, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Jochen Petzoldt, Klaus Joachim Mueller-Engel
  • Method for production of isocyanates
    Patent number: 7211689
    Abstract: In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfonamide, based on the total amount of primary amine and isocyanate formed in the reaction solution.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 1, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Rohde, Armin Stamm, Jochem Henkelmann
  • Process for preparing a nanosized zeolitic material
    Patent number: 7211239
    Abstract: A process for preparing a zeolitic material, comprising (i) preparing a mixture comprising the at least one silicon containing precursor compound from which the zeolitic framework is formed, at least one pore forming agent, and at least one polymer which has an essentially spheroidal geometry in the mixture; (ii) crystallizing the zeolitic material from the mixture obtained in (i) to obtain the crystallized zeolitic material in its mother liquor.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: May 1, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Müller, Lian Ma, Xiao Feng-Shou, Xiaoyu Yang
  • Heterogeneously catalyzed partial gas phase oxidation of propene to acrolein
    Patent number: 7211691
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, the starting reaction gas mixture is oxidized over a fixed catalyst bed which consists of at least two fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the transition from temperature zone A to temperature zone B does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: May 1, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochen Petzoldt, Martin Dieterle, Heiko Arnold, Wilhelm Ruppel, Klaus-Joachim Mueller-Engel
  • Method for processing compositions containing 1,1,2,2-tetramethoxyethane and glyoxal dimethyl acetal
    Patent number: 7211698
    Abstract: A process is proposed for distillatively working up an aqueous composition which comprises 1,1,2.2-tetramethoxyethane, glyoxal dimethyl acetal and methanol, wherein the workup of this composition is carried out in a dividing wall column to form low boiler, medium boiler and/or high boiler fractions, and a dividing wall is disposed in the longitudinal direction in the dividing wall column to form an upper common column region, a lower common column region, a feed section having rectifying section and stripping section and a withdrawal section having stripping section and rectifying section, and the aqueous composition is fed into the middle region of the feed section.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: May 1, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunnar Heydrich, Ingo Richter, Thomas Krug
  • Fungicidal mixtures based on carbamate derivatives and insecticides
    Publication number: 20070093543
    Abstract: The present invention relates to mixtures comprising as active components a) carbamate derivatives of the formula (I) in which the substituents and the index have the following meaning: T is CH or N n is 0, 1 or 2 R is halogen, C1-C4-alkyl or C1-C4-haloalkyl, it being possible for the radicals R to be different when n is 2, and b) at least one compound of the formula (II).
    Type: Application
    Filed: December 15, 2004
    Publication date: April 26, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Edson Begliomini, Sergio Zambon
  • Synergistically acting herbicidal mixtures
    Publication number: 20070093390
    Abstract: A synergistic herbicidal mixture comprising A) [N-(5,7-Dimethoxy(1,2,4)triazolo[1,5-a]pyrimidin-2-yl)-2-methoxy-4-(trifluoro methyl)]-3-pyridinesulfonamide (I) or one of its environmentally compatible salts; B) at least a synergistically effective amount of a herbicidal compound from the group of the p-hydroxyphenylpyruvatdioxygenase (HPPD)-inhibitors; and, if desired, C) at least a safener selected from the group of dichlormid, benoxacor, LAB 145, 138, MG-191, furilazole, cyometrinil, oxabetrinil, fluoxfenim, flurazole, naphtalic acid anhydride, fenclorim, fenchlorazole, mefenpyr, isoxadifen, cloquintocet, 1-ethyl-4-hydroxy-3-(1H-tetrazol-5-yl)-1H-quinolin-2-one, 4-carboxy methyl-chroman-4carboxylic acid, N-(2-methoxy-benzoyl)-4-(3-methylureido)benzenesulfonamide, (3-oxo-isothiochroman-4ylidenemethoxy)-acetic acid methyl ester; or their environmentally compatible salts, amides, esters and hydrates.
    Type: Application
    Filed: March 10, 2004
    Publication date: April 26, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Matthias Witschel, Cyrill Zagar, Andreas Landes, Peter Dombo
  • Method for the production of 2,3-cis-substituted 2-aryl propenals
    Publication number: 20070093681
    Abstract: The present invention relates to a process for preparing 2,3-cis-substituted 2-arylpropenals by condensing a 2-arylacetaldehyde I with a nonenolizable aldehyde compound II in the presence of a base, which comprises carrying out the reaction in a solvent mixture which includes at least one water-miscible solvent and water in a Vsolvent:Vwater ratio of from 10:1 to 0.5:1.
    Type: Application
    Filed: December 14, 2004
    Publication date: April 26, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Rainer Noack, Lothar Rub, Clemens Palm
  • Acrylic-acid-based homopolymers comprising taurine modified for the treatment of water
    Publication number: 20070093609
    Abstract: A description is given of (meth)acrylic acid copolymers containing methacrylic acid units, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for preparation thereof and use thereof for water treatment, scale inhibition in petroleum production and corrosion inhibition in aqueous systems.
    Type: Application
    Filed: November 5, 2004
    Publication date: April 26, 2007
    Applicant: Basf Aktiengesellschaft
    Inventors: Marcus Guzmann, Karl-Heinz Buchner, Pia Baum, Gregor Brodt
  • Gas phase oxidation catalyst with defined vanadium oxide particle size distribution
    Publication number: 20070093384
    Abstract: A process is described for producing a catalyst for gas-phase oxidations, in which a suspension of TiO2 and V2O5 particles is applied to a fluidized inert support, wherein at least 90% by volume of the V2O5 particles have a diameter of 20 ?m or less and at least 95% by volume of the V2O5 particles have a diameter of 30 ?m or less. The defined particle size distribution of the V2O5 allows a high coating efficiency.
    Type: Application
    Filed: September 24, 2004
    Publication date: April 26, 2007
    Applicant: Basf Aktiengesellschaft
    Inventors: Sebastian Storck, Jurgen Zuhlke, Samuel Neto, Frank Rosowski, Wolfgang Rummel
  • Method for the hydroformylation of olefins with 2 to 6 carbon atoms
    Patent number: 7208635
    Abstract: The invention relates to a hydroformylation process in which at least one olefin having from 2 to 6 carbon atoms is reacted continuously with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst in a reaction zone in which a liquid phase is present and a stream S) is taken from the liquid phase, heat is removed from this stream and the stream is subsequently returned to the reaction zone without removal of a material component.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: April 24, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Richter, Rolf Müller, Roland Krokoszinski
  • Exterior mirror assembly isolated by elastomeric material
    Patent number: 7207684
    Abstract: An exterior mirror assembly for a vehicle having a housing rotatably mounted to a base between an operable position and a retracted position. A mirror is supported by the housing and is movable with the housing between the positions. A female detent is disposed on the shaft of the base. A male detent is disposed on the housing within the chamber and is aligned with the female detent when the housing is in the operable position and is misaligned with the female detent when the housing is in the retracted position. An elastomeric material is disposed within the chamber between the shaft and the housing and between the detents for isolating movement between the base and the housing and for resisting the rotational movement of the housing relative to the base.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: April 24, 2007
    Assignee: BASF Corporation
    Inventors: Anand Huprikar, Daniel G. Dickson, Michael Kronell, Jr.
  • Viscoelastic polyurethane foam
    Patent number: 7208531
    Abstract: The subject invention provides a viscoelastic polyurethane foam having a density of from one to twenty pounds per cubic foot. The foam is formed from a composition that is a reaction product of an isocyanate component (A), a first polyether polyol (B), a second polyether polyol (C), and a chain extender (D). The chain extender (D) has a backbone chain with from two to eight carbon atoms and has a weight-average molecular weight of less than 1,000 and is present in an amount of from 5 to 50 parts by weight based on 100 parts by weight of the composition. The viscoelastic polyurethane foam a first glass transition temperature greater than zero and a second glass transition temperature less than zero and having a tan delta peak ratio of the first glass transition temperature to the second glass transition temperature less than 2.2.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: April 24, 2007
    Assignee: BASF Corporation
    Inventors: Raymond A. Neff, Suzanne Dakin
  • Preparation of acrolein by heterogeneously catalyzed partial gas phase oxidation of propene
    Patent number: 7208636
    Abstract: Acrolein is prepared by a process of heterogeneous catalyzed partial gas phase oxidation, by passing a starting reaction gas mixture which comprises propene, molecular oxygen and at least one inert gas, in which the molecular oxygen to propene (O2:C3H6) mole ratio is ?1, and carbon dioxide and saturated hydrocarbons together in a total amount of at most 15 mol %, at elevated temperature and at an hourly space velocity on the fixed catalyst bed of propene present in the starting reaction gas mixture of ?120 l (STP)/l·h through a fixed catalyst bed whose catalysts are comprised of annular unsupported catalysts whose active component is at least one multimetal oxide of formula I, Mo12WaCobFecBidSieKfOn??(I) wherein a ranges from ?1 to ?3, b ranges from ?3 to ?8, c ranges from ?1 to ?4, d ranges from ?0.5 to ?1.5, e ranges from ?0 to ?10, and f ranges from ?0 to ?0.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: April 24, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochen Petzoldt, Klaus Joachim Mueller-Engel
  • Selected cyclohexane -1,3-and -1,4-dicarboxylic acid esters
    Patent number: 7208545
    Abstract: Selected cyclohexane-1,3- and -1,4-dicarboxylic acid esters are described, as is their use as plasticizers in plastics and their preparation by hydrogenation of the corresponding isophthalic or terephthalic esters by bringing one or more of these isophthalic or terephthalic esters into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, at least one metal of the 8th transition group of the Periodic Table on its own or together with at least one metal of the 1st or 7th transition group of the Periodic Table, applied to a support, which comprises using a support having micropores.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 24, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Melanie Brunner, Lucien Thil, Boris Breitscheidel
  • Preparation of mixed oxides having mean diameters of less than 10 nanometers
    Patent number: 7208135
    Abstract: Process for preparing mixed oxides by reacting alkoxides of the elements titanium, zirconium, niobium, tantalum or mixtures thereof with metal hydroxides, metal carboxylates, metal hydroxycarbonates, metal carbonates or mixtures thereof of the elements lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, cadmium, aluminum, gallium, yttrium, lanthanum, praseodymium, neodymium, samarium, dysprosium, europium, lead, bismuth or mixtures thereof in a C1–C8-alkanol, in a glycol ether or in a mixture thereof at from 50 to 200° C.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: April 24, 2007
    Assignee: BASF Aktiengesellschaft
    Inventor: Hans-Josef Sterzel
  • Method for producing xylylenediamine (xda)
    Publication number: 20070088178
    Abstract: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile by contacting the vaporous product of this ammoxidation stage directly with a liquid organic solvent (quench), removing products having a boiling point higher than phthalonitrile (high boilers) from the resulting quench solution or suspension and hydrogenating the phthalonitrile, wherein the organic solvent used for the quench is N-methyl-2-pyrrolidone (NMP), after the removal of the high boilers and before the hydrogenation, there is a partial or complete removal of the NMP and/or of products having a boiling point lower than phthalonitrile (low boilers) and the phthalonitrile for the hydrogenation step is dissolved or suspended in an organic solvent or in liquid ammon
    Type: Application
    Filed: September 4, 2004
    Publication date: April 19, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Randolf Hugo, Sabine Jourdan, Kirsten Wenz, Thomas Preiss, Alexander Weck
  • Method for producing xylylenediamine (xda)
    Publication number: 20070088179
    Abstract: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile, by contacting the vaporous product of the ammoxidation stage directly with a liquid organic solvent (quench), and hydrogenating the phthalonitrile in the resulting quench solution or suspension, wherein the organic solvent is N-methyl-2-pyrrolidone (NMP).
    Type: Application
    Filed: August 27, 2004
    Publication date: April 19, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Randolf Hugo, Sabine Jourdan, Kirsten Wenz, Thomas Preiss, Alexander Weck
  • PROCESS FOR PREPARING ACROLEIN OR ACRYLIC ACID OR A MIXTURE THEREOF FROM PROPANE
    Publication number: 20070088092
    Abstract: A process for preparing acrolein or acrylic acid or a mixture thereof from propane, in which propane is dehydrogenated under heterogeneous catalysis in a reaction zone A and the propylene formed is partially oxidized heterogeneously in a reaction zone, reaction zone A being operated in loop mode and reaction gas mixture input stream A fed to the reaction zone A comprising added molecular hydrogen which is added to this input stream as late as possible.
    Type: Application
    Filed: September 19, 2006
    Publication date: April 19, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Catharina Klanner, Martin Dieterle, Gotz-Peter Schindler, Tsung-Chieh Cheng, Klaus Muller-Engel