Patents Assigned to BASF
  • METHOD FOR CONTINUOUS HYDROGENATION OF CITRONELLAL TO FORM CITRONELLOL
    Publication number: 20050256347
    Abstract: A process is described for selectively hydrogenating citronellal to citronellol in which a liquid phase, in which the citronellal is dissolved and particles of a catalyst are suspended which is capable of preferentially hydrogenating carbon-oxygen double bonds over carbon-carbon double bonds, is conducted through a device which inhibits the transport of the catalyst particles in the presence of a hydrogen-containing gas.
    Type: Application
    Filed: July 14, 2003
    Publication date: November 17, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Hans-Georg Goebbel, Till Gerlach, Gunter Wegner, Hartwig Fuchs, Signe Unverricht, Axel Salden
  • Method for producing macrocyclic ketones by means of dieckmann condensation in the gas phase
    Publication number: 20050256341
    Abstract: The invention relates to a method for producing macrocyclic ketones of general formula (I) by direct cyclisation of compounds of general formula (II) in the gas phase on a heterogeneous catalyst. In general formula (I), X represents a monounsaturated or polyunsaturated or saturated C10-C17 alkyl radical which can be optionally substituted by a C1-C6 alkyl radical, and in general formula (II), R1, R2 can respectively be the same or different and represent hydrogen or C1-C6 alkyl, and has the above-mentioned designation.
    Type: Application
    Filed: July 10, 2003
    Publication date: November 17, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Alexander Wartini, Klaus Ebel, Gisela Hieber, Hagen Weigl
  • Lipase variants
    Publication number: 20050255571
    Abstract: The invention relates to a lipase variant which can be prepared by carrying out, on the amino acid sequence of a starting lipase selected from the lipase homologous family I.1 or I.2, at least one amino acid substitution in those positions which correspond to the positions 17, 29, 30, 52, 86, 117, 122, 160, 163, 167, 265, 266, 286, 289 in the prototype lipase sequence SEQ ID NO: 1.
    Type: Application
    Filed: October 17, 2002
    Publication date: November 17, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Markus Matuschek, Rainer Sturmer, Bernhard Hauer, Gerhard Klebe, Marco Bocola
  • Method and device for producing formates and the use thereof
    Publication number: 20050256338
    Abstract: A process for preparing acid formates which comprises (a) partially hydrolyzing methyl formates with water; (b) separating off by distillation methyl formate and methanol from the reaction mixture obtained in process stage (a), forming a stream comprising formic acid and water; and (c) combining the stream comprising formic acid and water from the process stage (b) and the corresponding formate, forming a mixture comprising the acid formate and water, an apparatus for their preparation and their use.
    Type: Application
    Filed: July 30, 2003
    Publication date: November 17, 2005
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Christoph Adami, Jorn Karl, Alexander Hauk, Ralf Bohling, Jorg Pastre, Robert Lenz
  • Method for producing ethers, esters or acid anhydrides
    Patent number: 6965047
    Abstract: Ethers, esters or acid anhydrides are advantageously obtained when a cake of a first reactant selected from salts of organic or oxygen-containing inorganic acids or alkoxides disposed on a filter element is flowed through by a solution of a second reactant selected from inorganic or organic acid halides and alkyl halides, so that the insoluble halide salt formed remains on the filter element. The halide salt can thus be removed substantially quantitatively in a simple manner.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Ingo Klopp, Thomas Bogenstätter, Dirk Franke
  • Utilization of beam crosslinkable polymer compositions as data recording medium
    Patent number: 6964837
    Abstract: The present invention relates to the use of at least one radiation crosslinkable, preferably UV crosslinkable, polymer composition as a data recording medium, especially in the form of what are known as smart coatings based on such polymer compositions, which in a further embodiment comprises at least one fluorescence chromophore, and also to a composite at least comprising one support and one layer comprising a radiation crosslinkable polymer composition comprising at least one fluorescence chromophore, and also, preferably, an additional UV absorbing layer.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Harald Röckel, Rüdiger Füssl, Karl-Heinz Schumacher, Ralf Fink
  • Paper coating slip containing polyvinyl alcohol as a protective colloid
    Patent number: 6964993
    Abstract: A paper coating slip contains a polymer dispersed with polyvinyl alcohol as protective colloid in water (abbreviated to PVA-dispersed polymer).
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Formulations of hair cosmetics
    Patent number: 6964774
    Abstract: The use of polymers obtainable by free-radical polymerization of a) at least one vinyl ester of C1–C24-carboxylic acids in the presence of b) polyether-containing compounds and c) optionally one or more other copolymerizable monomers and subsequent at least partial hydrolysis of the ester functions of the original monomers a), in hair cosmetic formulations.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Dieing, Michael Gotsche, Peter Hössel, Axel Sanner, Alfred Leinenbach, Keith Leslie Rutherford
  • Method for the continuous purification by distillation of 1-2, propylene glycol that accumulates during the synithesis of propylene oxide without coupling products
    Publication number: 20050250965
    Abstract: The invention relates to a continuously operated process for the purification by distillation of the 1,2-propylene glycol formed as by-product in the synthesis of propylene oxide, wherein the mixture formed in the synthesis which contains the 1,2-propylene glycol is separated in a dividing wall column into low-, intermediate, and high-boiling fractions and the 1,2-propylene glycol is taken off as intermediate boiler at the side offtake of the column.
    Type: Application
    Filed: July 22, 2003
    Publication date: November 10, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Peter Bassler, Hans-Georg Gobbel, Joaquim Teles, Peter Rudolf
  • Laser gain medium for solid state dye lasers
    Publication number: 20050249257
    Abstract: The present invention relates to a laser gain medium comprising at least one active species adapted to be stimulated to emit laser light within a predetermined wavelength range and optical feedback means defining a resonator for said laser light. The feedback means comprise at least one substantially solid cholesteric layer having a substantially planar texture exhibiting selective reflection of light defined by a reflection band tuned to said predetermined wavelength range.
    Type: Application
    Filed: August 29, 2002
    Publication date: November 10, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Reinhold Leyrer, Holger Schopke, Christoph Hamers
  • Preparations containing diformates and short-chain carboxylic acids
    Publication number: 20050249784
    Abstract: The present invention relates to preparations comprising at least one diformate of the general formula XH(COOH)2, where X=Na, K, Cs, NH4 and at least one short-chain carboxylic acids and/or at least one salt of the short-chain carboxylic acid and/or at least one ester and/or at least one derivative of the short-chain carboxylic acid, and to the use of these preparations.
    Type: Application
    Filed: July 7, 2003
    Publication date: November 10, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Michael Schonherr, Jorn Karl, Alexander Hauk, Gerd Diebold, Andreas Habich, Robert Lenz, Anna Lohmann, Volker Schmidt
  • Use of water-absorbent, predominantly open-celled crosslinked acid-functional addition polymer foams in hygiene articles
    Publication number: 20050250866
    Abstract: Use in hygiene articles of articles formed of water-absorbent, predominantly open-celled crosslinked acid-functional addition polymer foams. The use of articles formed of water-absorbent open-celled crosslinked acid-functional addition polymer foams and containing finely divided silicon dioxide and/or at least one surfactant on their surface as an acquisition and/or distribution layer in hygiene articles.
    Type: Application
    Filed: July 7, 2003
    Publication date: November 10, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Samantha Champ, Hans-Joachim Hahnle, Mariola Wanior
  • Method for the recycling of a lewis acid
    Publication number: 20050247624
    Abstract: A process for the recovery of a Lewis acid from a reaction mixture (I) which has been obtained in the hydrocyanation of an olefinically unsaturated compound to a nitrile which has a miscibility gap with water under certain pressure and temperature conditions, in the presence of a catalyst system comprising a Lewis acid and a complex compound.
    Type: Application
    Filed: July 4, 2003
    Publication date: November 10, 2005
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Tim Jungkamp, Jens Scheidel, Hermann Luyken, Michael Bartsch, Robert Baumann, Gerd Haderlein
  • Polymerized hydrogel adhesives with high levels of monomer units in salt form
    Publication number: 20050249790
    Abstract: The present invention relates to hydrogel adhesives which are capable of attaching to mammalian skin, exhibit excellent attachment and painless removal properties, and which show excellent stability upon storage at room temperature or even at elevated temperatures and for longer periods of time. The adhesive hydrogel described in the present invention can be used as body adhesive in products for e.g. personal care, medical devices, beauty care and a variety of functional articles to be worn by a human. The hydrogel adhesive of the invention comprises 10-60 wt. % of a cross-linked hydrophilic polymer, 5-80 wt. % of a water-soluble non-ionic humectant, and from about 10-85 wt.
    Type: Application
    Filed: September 18, 2003
    Publication date: November 10, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Christian Weidl, Felix Gorth, Volker Frenz
  • Fixed-bed process for producing chlorine by catalytic gas-phase oxidation of hydrogen chloride
    Patent number: 6962682
    Abstract: A process for preparing chlorine by catalytic gas-phase oxidation of hydrogen chloride over a fixed catalyst bed is disclosed that includes: making available a feed gas stream I with hydrogen chloride and an oxygen-containing feed gas stream II, feeding the feed gas stream I, the feed gas stream II, and, if desired, a recycled stream Ia with hydrogen chloride, an oxygen-containing recycle stream IIa, and a recycled stream III into an oxidation zone and oxidizing hydrogen chloride to chlorine in the presence of a catalyst present in a fixed bed to give product gas stream IV having chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor, and taking the recycled stream III from the product gas stream IV, without further treatment, and recirculating it to the oxidation zone, leaving a product gas stream IVa.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: November 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Walsdorff, Martin Fiene, Christoph Adami, Eckhard Ströfer, Klaus Harth
  • Method of purifying polyether polyols of non-volatile impurities
    Patent number: 6962967
    Abstract: The subject invention provides polyurethane foam and a method of purifying polyether polyols of non-volatile impurities for use in forming the polyurethane foam. The method includes the step of providing a crude polyether polyol having a non-volatile impurity present therein. The crude polyether polyol is contacted with an adsorbent selected from at least one of activated carbon, diatomaceous earth, charcoal, attapulgite, and clay to remove the impurity and filtered to form a purified polyether polyol. The filtering of the crude polyether polyol is carried out through a filter media that is used both in a pre-filtering step prior to adding the adsorbent and the filtering step to remove the adsorbent to reduce losses of the purified polyether polyol because of its high viscosity. The purified polyether polyol is then used to form a polyurethane foam having improved stability.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: November 8, 2005
    Assignee: BASF Corporation
    Inventors: David D. Peters, Jon S. Speier, Alexander Gershanovich
  • Coating composition containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms
    Patent number: 6962730
    Abstract: The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups, and (b) a crosslinking agent comprising a plurality of functional groups (iii) reactive with the functional groups (ii) of compound (a), wherein functional groups (ii) and (iii) are selected such that reaction there between produces a thermally irreversible chemical linkage. The coating compositions of the invention provide improved solids, chip resistance, flexibility and/or scratch & mar resistance while maintaining desirable and/or improved performance characteristics with regard to environmental etch, relative humidity, QCT, chip resistance, thermoshock resistance, cold crack resistance, adhesion and the like.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: November 8, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, John A. Gilbert, Patricia A. Herrel, Marvin L. Green, Joanne Casale, Thomas G. Savino
  • C13 alcohol mixture and functionalised C13 alcohol mixture
    Patent number: 6963014
    Abstract: A process for preparing a C13-alcohol mixture comprises a) bringing a butene-containing C4-hydrocarbon stream containing less than 5% by weight, based on the butene fraction, of isobutene into contact with a nickel-containing heterogeneous catalyst at elevated temperature, b) isolating a C12-olefin fraction from the reaction mixture, c) hydroformylating the C12-olefin fraction by reaction with carbon monoxide and hydrogen in the presence of a cobalt catalyst and d) hydrogenating the product from c). The alcohol mixture is suitable for preparing surfactants by alkoxylation, glycosidation, sulfation, phosphation, alkoxylation and subsequent sulfation or alkoxylation and subsequent phosphation.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: November 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Edgar Zeller, Marc Walter, Wolfgang Richter, Klaus Diehl, Michael Röper, Jürgen Tropsch
  • Corynebacterium glutamicum genes encoding novel proteins
    Patent number: 6962989
    Abstract: Isolated nucleic acid molecules, designated MCP nucleic acid molecules, which encode novel MCP proteins from Corynebacterium glutamicum are described. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing MCP nucleic acid molecules, and host cells into which the expression vectors have been introduced. The invention still further provides isolated MCP proteins, mutated MCP proteins, fusion proteins, antigenic peptides and methods for the improvement of production of a desired compound from C. glutamicum based on genetic engineering of MCP genes in this organism.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: November 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Pompejus, Burkhard Kröger, Hartwig Schröder, Oskar Zelder, Gregor Haberhauer
  • Water-emulsifiable isocyanates having improved properties
    Publication number: 20050245675
    Abstract: Mixtures comprising (A) an isocyanurate and/or biuret of 1,6-diisocyanatohexane (HDI), (B) an isocyanurate of 1-isocyanato-3,5,5-trimethyl-5-isocyanatomethylcyclohexane (IPDI), (C) at least one emulsifier, and (D) if desired, solvent.
    Type: Application
    Filed: July 24, 2003
    Publication date: November 3, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Karl Haberle, Rainer Koniger, Eva Wagner, Klaus Horner