Patents Assigned to BASF
  • Patent number: 6726929
    Abstract: A pharmaceutical mixture comprising a profen is described which has a profen content of over 85% and contains up to 1% of a nonionic surfactant having an HLB of ≧9 and also a customary disintegrant and a lubricant and optionally a microcrystalline cellulose.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Einig, Harald Hach, Richard C. Thompson, Raymond Eason, Bernd W. Müller
  • Patent number: 6727391
    Abstract: A liquid output from a continuous hydroformylation, which comprises essentially aldehydes, high-boiling by-products, a homogeneously dissolved hydroformylation catalyst, unreacted olefins, low-boiling by-products and dissolved synthesis gas, is worked up by a process in which a) the liquid hydroformylation output is depressurized in a first depressurization stage to a pressure which is from 2 to 20 bar below the reactor pressure, resulting in separation into a liquid phase and a gas phase, and b) the liquid phase obtained in the first depressurization stage is depressurized in a second depressurization stage to a pressure which is lower than the pressure of the first depressurization stage, resulting in separation into a liquid phase comprising essentially high-boiling by-products of the hydroformylation, the homogeneously dissolved hydroformylation catalyst and small amounts of hydroformylation product and unreacted olefin and a gas phase comprising essentially the major part of the hydroformylation produc
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Walczuch, Rolf Müller, Roland Krokoszinski, Bernhard Geissler
  • Patent number: 6727371
    Abstract: In a continuous process for reacting an organic compound with hydroperoxide in the presence of a catalyst, the reaction is carried out in a reactor assembly comprising at least two reactors connected in parallel.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Müller, Joaquim Henrique Teles, Norbert Rieber, Andreas Walch, Peter Bassler, Alwin Rehfinger, Anne Wenzel, Wolfgang Harder
  • Patent number: 6727385
    Abstract: A process for preparing o-chloromethylbenzoyl chlorides of the formula I, in which R1 to R4 can be identical or different and are hydrogen, C1-C4-alkyl, halogen or trifluoromethyl, by reacting benzo-fused lactones of the formula II, in which R1 to R4 are as defined above, with thionyl chloride, which comprises carrying out the reaction in the presence of catalytic amounts of boric acid, boric anhydride, borate, boronic acid or boronic acid esters and catalytic amounts of a quaternary ammonium salt is described.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Götz, Norbert Götz, Michael Keil, Bernd Wolf, Adrian Steinmetz, Armin Stamm, Jochem Henkelmann
  • Patent number: 6727205
    Abstract: The present invention describes compounds and compositions useful in controlling annual bluegrass weeds, including their methods of use. Included in the invention is a method of controlling annual bluegrass by applying an herbicidally effective amount of a plant growth regulator compound to an annual bluegrass plant. Also included in the present invention is a method of controlling annual bluegrass by applying an acylcyclohexanedione compound to an annual bluegrass plant.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventor: Bart A. Brinkman
  • Patent number: 6727291
    Abstract: A process prepares expandable propylene polymer beads by mixing propylene polymer melt with a volatile organic blowing agent and with a nucleating agent in an extruder, whereupon the extrusion and pelletization of the extruded takes place in a water bath under conditions of temperature and pressure at which practically no foaming of the pellets takes place.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Maletzko, Klaus Hahn, Isidor de Grave, Gerd Ehrmann, Franz-Josef Dietzen
  • Patent number: 6727327
    Abstract: The present invention provides aqueous polymer dispersions comprising at least one particulate polymer P having a glass transition temperature Tg of less than 0° C. which is composed of ethylenically unsaturated monomers M including: i. from 60 to 94.9% by weight, preferably from 75 to 89.5% by weight, of n-butyl acrylate as monomer M1, ii. from 5 to 39.9% by weight, preferably from 10 to 24.5% by weight, of at least one monomer M2 selected from esters of methacrylic acid with C1 to C4 alkanols, tert-butyl acrylate, and vinylaromatic monomers, and iii. from 0.1 to 5% by weight, preferably from 0.5 to 2% by weight, of at least one monomer M3 selected from ethylenically unsaturated compounds having at least one acid group; the proportions of said monomers M1 to M3 being based on 100% by weight of monomers M, obtainable by free-radical aqueous emulsion polymerization of monomers M in the presence of at least 0.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Gerst, Alexander Centner, Karl-Heinz Schumacher
  • Patent number: 6727384
    Abstract: Process for the purification of carbonyl chlorides which have been prepared by reacting carboxylic acids with phosgene or thionyl chloride in the presence of a catalyst adduct, in which the carbonyl chlorides are treated with a hydrohalide of carboxamides of the formula (I) in which R1 is hydrogen or C1- to C3-alkyl; R2 and R3 independently of one another are C1- to C4-alkyl, or R2 and R3 together are a C4- or C5-alkylene chain, and the carbonyl chloride purified in this way is isolated by separation off from the carboxamide hydrohalide phase.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralph Busch, Heinz-Josef Kneuper, Theodor Weber, Winfried Müller, Armin Stamm, Jochem Henkelmann
  • Publication number: 20040075080
    Abstract: Disclosed are polymerizable liquid-crystalline compounds of the general formula (I) 1
    Type: Application
    Filed: October 6, 2003
    Publication date: April 22, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt, Gerold Schmitt
  • Patent number: 6723774
    Abstract: The invention relates to a method for producing caoutchouc particles (K) by means of emulsion polymerisation in the presence of an emulsifier and a polymerisation initiator. Said particles contain A) 80 to 100 wt. % of one or more conjugated diene monomers (A) in relation to (K) and B) 0 to 20 wt. % of one or more monoethylenically unsaturated comonomers (B) in relation to (K) in the polymerised form. The inventive method is characterised in that 1) a mixture (M1) containing water and an emulsifier is provided, 2) a mixture (M2) containing one or more monomers in the monomer or polymerised form selected from styrole, &agr;-methylstyrole, butadiene, n-butylacrylate, MMA and acrylnitrile and optionally comonomers is added, 3) polymerisation of the obtained mixture starts in the presence of a polymerisation initiator at temperature of 5 to 95° C., 4) a mixture (M3) containing 0 to 100 wt. % of the comonomers (B) in relation to (B) and 0 to 25 wt.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Bernhard Czauderna, Michael Breulmann, Sabine Oepen, Wil Duijzings, Norbert Niessner
  • Patent number: 6723883
    Abstract: The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Jörg Therre, Andreas Kramer, Andreas Weiper-Idelmann, Michael Schulik, Regina Benfer, Jürgen Schossig, Mathias Haake, Hans-Georg Göbbel
  • Patent number: 6723884
    Abstract: Olefins having from 6 to 20 carbon atoms are hydroformylated by means of a continuous process in which a) an aqueous cobalt(II) salt solution is brought into intimate contact with hydrogen and carbon monoxide to form a hydroformylation-active cobalt catalyst, and the aqueous phase comprising the cobalt catalyst is brought into intimate contact with the olefins and, if desired, an organic solvent and also hydrogen and carbon monoxide in at least one reaction zone where the cobalt catalyst is extracted into the organic phase and the olefins are hydroformylated, b) the output from the reaction zone is treated with oxygen in the presence of acidic aqueous cobalt(II) salt solution, with the cobalt catalyst being decomposed to form cobalt(II) salts and these being backextracted into the aqueous phase; and the phases are subsequently separated, c) the aqueous cobalt(II) salt solution is recirculated in unchanged form to step a), wherein the cobalt(II) salt solution has a concentration of from 1.1 to 1.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Armin Volker Grenacher, Hans Stepp
  • Patent number: 6723882
    Abstract: Dialkyl ketones are prepared by reductive carbonylation of &agr;-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising (a) palladium or a palladium compound; (b) a phosphine; (c) a protic acid having a pKa of ≦4.5, measured in aqueous solution at 25° C.; and (d) a solubilizable carboxamide.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Slany, Martin Schäfer, Michael Röper
  • Patent number: 6723880
    Abstract: A process for producing secondary amines of the formula R1R2N—A—NH—A—NR1R2, where R1 and R2 are linear or branched C1-20-alkyl radicals, optionally substituted with from 1 to 5 phenyl groups; or cyclohexyl radicals; or together with the nitrogen atom to which they are bound, form a 3 to 7 membered saturated ring, optionally containing further hetero atoms selected from the group consisting of N, O and S, and optionally substituted with from 1 to 5 C1-2-alkyl groups. The group A is a linear or branched C2-20-alkylene group, optionally containing from 1 to 5 phenylene groups; or a radical of the formula —CH(R3)—[CH2]k—X—[CH(R3)—[CH2]k—X]m—CH(R3)—[CH2]k—, where R3 is H or CH3, X is O, S or NR4, R4 is H or a linear or branched C1-4-alkyl group, k is 1 or 2, and m is an integer from 0 to 4; or a group of the formula where n, o, p, and q are, independently, integers from 1 to 4.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Johann-Peter Melder, Christoph Benisch, Arthur Höhn, Joachim Pfeffinger
  • Patent number: 6723295
    Abstract: A copper-containing catalyst of the composition of N2O contains a compound of the formula MxAl2O4, where M is Cu or a mixture of Cu and Zn and/or Mg and x is from 0.8 to 1.5. The novel catalyst is used in a process for the catalytic decomposition of pure N2O or N2O contained in gas mixtures, at elevated temperatures.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Baier, Thomas Fetzer, Otto Hofstadt, Michael Hesse, Gert Bürger, Klaus Harth, Volker Schumacher, Hermann Wistuba, Bernhard Otto
  • Patent number: 6723760
    Abstract: The invention relates to a process for the production of expanded or expandable polyolefin beads by impregnating polyolefin granules with a volatile blowing agent in suspension under pressure. As suspension aid, use is made of a mixture of a water-insoluble inorganic compound and a surfactant, and the impregnation is carried out in the presence of a surface-active polymer carrying carboxyl or carboxylate groups.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventor: Frank Braun
  • Publication number: 20040073063
    Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 15, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Joachim Thiel, Ulrich Hammon, Dieter Baumann, Jorg Heilek, Juergen Schroder, Klaus Joachim Muller-Engel
  • Publication number: 20040071887
    Abstract: The invention provides a coating composition for use with metallic substrates that provides desirable levels of adhesion to metal, sandability without the production of harmful dust, corrosion resistance, and recoatability. The coating composition of the invention comprises a polyurethane film-forming component, and a corrosion protection component present in the composition in an amount effective in minimizing corrosion and adhesion loss of the coating at the substrate. A cured film of the coating applied to metallic substrates, previously coated substrates, as well as plastic substrates has improved corrosion resistance following Salt Spray Cabinet exposure.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Applicant: BASF CORPORATION
    Inventor: David L. Newton
  • Patent number: 6720384
    Abstract: A coating composition consisting of at least four components, comprising a component (I) comprising at least one oligomeric or polymeric resin containing functional groups which react with isocyanate groups, as binder (A), a component (II) comprising at least one polyisocyanate as crosslinking agent (F), a component (III) which comprises water and is substantially free from acrylate copolymers (A) dispersed or dissolved therein, and a finely divided solid component (IV) which comprises at least one water-soluble or -dispersible finely divided solid acrylate copolymer (A); and also a process for producing a coating from a coating composition consisting of at least four components, which involves (1) mixing at least one component (I) with at least one component (II), to give the mixture (I/II); (2) mixing at least one component (III) with at least one finely divided solid component (IV), to give the mixture (III/IV); and then either (3) dispersing and/or dissolving the mixture (I/II) in the mixture (III/IV) or
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 13, 2004
    Assignee: BASF Coatings AC
    Inventors: Bernd Mayer, Heinz-Peter Rink
  • Patent number: 6720477
    Abstract: A transgenic plant transformed by a Signal Transduction Stress-Related Protein (STSRP) coding nucleic acid, wherein expression of the nucleic acid sequence in the plant results in increased tolerance to environmental stress as compared to a wild type variety of the plant. Also provided are agricultural products, including seeds, produced by the transgenic plants. Also provided are isolated STSRPs, and isolated nucleic acid coding STSRPs, and vectors and host cells containing the latter.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: April 13, 2004
    Assignee: BASF Plant Science GmbH
    Inventors: Oswaldo da Costa e Silva, Hans J. Bohnert, Nocha van Thielen, Ruoying Chen, Manabu Ishitani