Patents Assigned to BASF
  • Method for producing alkyl nitrites and alkyl dinitrites
    Patent number: 7314948
    Abstract: In a continuous process for the preparation of alkyl nitrites and dinitrites, an alkanol or dialkanol is first mixed with an aqueous mineral acid, the reaction mixture obtained is then reacted with an inorganic nitrite and the product obtained can then be isolated immediately.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: January 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Steffen Kudis, Rene Lochtman, Manfred Ehresmann, Michael Keil, Joachim Gebhardt, Michael Rack, Ralf Schimetzek
  • Lipase variants
    Patent number: 7314739
    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: Grant
    Filed: October 17, 2002
    Date of Patent: January 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Matuschek, Rainer Stürmer, Bernhard Hauer, Gerhard Klebe, Marco Bocola
  • Catalysts containing copper and zinc for the purification of ethylene
    Patent number: 7314965
    Abstract: Catalysts for the purification of ethylene containing copper and zinc, optionally one or more promoters or supports. These catalysts are produced by precipitation, drying, calcination and compression, optionally with the addition of additives, the compressed catalyst particles are calcinated at a temperature between from 300 to 700° C.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerald Vorberg, Wolfgang Jürgen Pöpel, Ernest Miesen
  • Method for Improving a Piperazine Colour Stability
    Publication number: 20070295592
    Abstract: The present invention relates to a process for improving the color stability by postpurifying piperazine, the steps comprising preparing an aqueous piperazine solution by introducing solid or liquid piperazine having a degree of purity of at least 90% by weight in water; removing the water by distillation; isolating the piperazine with a predefined maximum residual content of water. The invention further provides a rapid test of aging for checking the improvement in the color stability.
    Type: Application
    Filed: August 3, 2005
    Publication date: December 27, 2007
    Applicant: BASF Aktiengensellschaft
    Inventors: Holger Evers, Michael Jodecke, Johann-Peter Melder, Gunther van Cauwenberge, Jan Nouwen
  • (Hetero)Cyclyl(Thio) Carboxylic Acid Anilides For Controlling Pathogenic Fungi
    Publication number: 20070299115
    Abstract: The invention relates to (hetero)cyclyl(thio)carboxylic acid anilides of general formula (I) and to salts of said anilides that can be used for agricultural purposes for controlling pathogenic fungi.
    Type: Application
    Filed: September 5, 2005
    Publication date: December 27, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Markus Gewehr, Bernd Muller, Thomas Grote, Wassilios Grammenos, Anja Shwogler, Joachim Rheinheimer, Carsten Blettner, Peter Schafer, Frank Schieweck, Oliver Wagner, Jan Rether, Siegfried Strathmann, Reinhard Stierl, Maria Scherer
  • Method for the Production of Phthalic Dichloride
    Publication number: 20070299282
    Abstract: A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.
    Type: Application
    Filed: November 24, 2005
    Publication date: December 27, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Thorsten Rohde, Jochem Henkelmann
  • PROCESS FOR CONTINUOUS HETEROGENEOUSLY CATALYZED PARTIAL DEHYDROGENATION OF AT LEAST ONE HYDROCARBON TO BE DEHYDROGENATED
    Publication number: 20070299278
    Abstract: A process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated in a reactor which is manufactured from a composite material which consists, on its side in contact with the reaction chamber, of a steel B with specific elemental composition which, on its side facing away from the reaction chamber, either directly or via an intermediate layer of copper, or of nickel, or of copper and nickel, is plated onto a steel A with specific elemental composition, and also partial oxidations of the dehydrogenated hydrocarbon and the reactor itself.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 27, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Claus HECHLER, Wilhelm Ruppel, Gotz-Peter Schindler, Catharina Klanner, Hans-Jurgen Bassler, Martin Dieterle, Karl-Heinrich Klappert, Klaus Joachim Muller-Engel
  • Process for the recovery of sulfur from Claus tail gas streams
    Patent number: 7311891
    Abstract: Recovering sulfur from a gas stream containing hydrogen sulfide by oxidizing the gas stream to convert the hydrogen sulfide in the gas stream to sulfur oxide, and thus form a sulfur oxide enriched gas stream. The sulfur oxide enriched gas stream is contacted with a solid, sulfation resistant adsorbent bed at relatively low temperatures to extract the sulfur oxides and retain them as sulfur compounds, thus forming a sulfur oxide depleted gas stream. The adsorbent bed is then contacted with an inert or reducing gas stream to reduce the retained sulfur compounds to sulfur and/or sulfur dioxide and thereby form an enriched sulfur and/or sulfur dioxide bearing stream. The elemental sulfur is recovered and/or the sulfur dioxide bearing stream may be recycled to the Claus unit for further conversion.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: December 25, 2007
    Assignee: BASF Catalysts LLC
    Inventors: William Bachop Dolan, John Warren Byrne, Michael John Mitariten, Kenneth Butwell, Alfonse Maglio
  • Method for activating double metallocyanide-compounds
    Patent number: 7312363
    Abstract: The present invention relates to a process for reacting epoxides with an initiator compound in the presence of a double metal cyanide compound as a catalyst, said process having a shortened induction period, and the double metal cyanide compound being activated by adding the epoxide to a mixture of double metal cyanide compound and initiator compound at an internal reactor pressure of less than 1 bar, and also to the polyethers themselves obtainable by such a process.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: December 25, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Stoesser, Edward Bohres, Georg Heinrich Grosch, Wilfried Sager
  • Method for the Separation by Distillation of Pure Trioxane
    Publication number: 20070293688
    Abstract: The present invention relates to a process for distillatively removing pure trioxane from a feedstream (I) comprising trioxane in a proportion of at least 50% by weight, based on the total weight of the feedstream (I), and additionally formaldehyde and water, which comprises feeding the feedstream I and a further aqueous stream (II) which does not contain any components extraneous to the feedstream to a dividing wall column (TWK1) having a dividing wall TW which is arranged substantially perpendicularly and divides the column interior into a feed region (A1), a withdrawal reaction (B1), an upper combined column region (C1) and a lower combined column region (D1), and drawing off from the first dividing wall column (TWK1) a bottom stream (III) comprising pure trioxane and a sidestream (IV) at the withdrawal region (B1), comprising pure water.
    Type: Application
    Filed: August 18, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellchaft
    Inventors: Markus Siegert, Neven Lang, Eckhard Stroefer, Achim Stammer, Thorsten Friese
  • Trioxane Production Method Wherein A Side Aqueous Flow Is Deducted At A First Distillation Stage
    Publication number: 20070293689
    Abstract: Processes are disclosed comprising: (a) reacting an aqueous formaldehyde solution in a reactor in the presence of a suitable catalyst to obtain a reaction product mixture comprising trioxane, formaldehyde and water; (b) distilling the reaction product mixture to form a top stream comprising crude trioxane; and (c) treating the top stream in one or more additional stages to form pure trioxane; wherein an aqueous sidestream is drawn off during the distilling of the reaction mixture.
    Type: Application
    Filed: October 20, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Markus Siegert, Neven Lang, Eckhard Stroefer, Achim Stammer, Thorsten Friese
  • Postcrosslinking of Water Absorbing Polymeric Particles
    Publication number: 20070293632
    Abstract: The present invention relates to a process for postcrosslinking water-absorbing polymeric particles in the absence of oxidizing gases, to the water-absorbing polymers preparable by the process and to their use in hygiene articles and packaging materials.
    Type: Application
    Filed: November 28, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT, A GERMAN CORPORATION
    Inventors: Ulrich Riegel, Thomas Daniel, Uwe Stueven, Mark Elliott
  • Method for Separating Hydrogen Chloride and Phosgene
    Publication number: 20070293707
    Abstract: The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
    Type: Application
    Filed: September 10, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Andreas Wolfert, Carsten Knosche, Hans-Jurgen Pallasch, Martin Sesing, Eckhard Stroefer, Hans-Martin Polka, Manfred Heilig
  • Method for Controlling Coniferous Plants
    Publication number: 20070293398
    Abstract: A method for controlling coniferous plants, wherein an effective amount of a) at least one phenyluracil of the formula I wherein the variables R1 to R7 are as defined in the specification; and optionally b) at least one herbicide B selected from groups B1 to B6 as defined in the specification, and/or at least one of the agriculturally acceptable salts of herbicide B or their agriculturally acceptable derivatives, provided they have a carboxyl group, is applied to coniferous plants to be controlled and/or to the parts of these plants, is described.
    Type: Application
    Filed: July 6, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Cletus Youmans, Harold Quicke, Joseph Zawierucha, Larry Newsom
  • Scarecrow-Like Stress-Related Polypeptides and Methods of Use in Plants
    Publication number: 20070294783
    Abstract: A transgenic plant transformed with an 'SLSRP coding nucleic acid, wherein expression of the nucleic acid sequence in the plant results in increased growth under water-limited conditions and/or increased tolerance to an 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 SLSRPs, and isolated SLSRP coding nucleic acids, and vectors and host cells containing the latter.
    Type: Application
    Filed: October 19, 2005
    Publication date: December 20, 2007
    Applicant: BASF Plant Science GmbH
    Inventors: Damian Allen, Lori Mills, Nocha Van Thielen, Oswaldo Da Costa e Silva
  • Fire Extinguishing and/or Fire Retarding Compositions
    Publication number: 20070289752
    Abstract: The invention concerns fire-extinguishing and/or fire-retarding compositions comprising at least one water-absorbing polymer and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, processes for their production and the use of the compositions for firefighting or as fire-retarding coatings.
    Type: Application
    Filed: November 21, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Martin Beck, Samantha Champ, Markus Tonnessen, Antje Ziemer, Gerd Goebel, Matthias Pfeiffer
  • Use of 2-Substituted Pyrimidines for Combating Nematode Diseases of Plants
    Publication number: 20070293395
    Abstract: The invention relates to the use of 2-substituted pyrimidines of formula (I), wherein R1, R2, R3, R4 and X have the meanings as defined in the description; for combating nematode diseases of plants, a method for the protection of plants from attack or infestation by nematode pests which comprises applying to the foliage, shoot, root, or seed of the plants, or to the soil or water in which they are, an effective amount of compounds of formula (I).
    Type: Application
    Filed: September 19, 2005
    Publication date: December 20, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Henry Cotter, Mark Schmitt
  • Method of Generating a Catalyst
    Publication number: 20070293389
    Abstract: Platinum is applied on a carrier such as graphite to form a platinum catalyst. The catalyst becomes poisoned with a metal as a result of use of the catalyst in preparation of hydroxylammonium salts. A method of regenerating the catalyst dissolves the platinum and the metal in an acid. The method also adds ammonium sulfate to the acid to precipitate the platinum. The ammonium sulfate is a by-product of a commercial process to synthesize a captrolactam. Also, the method precipitates the platinum onto the carrier for reuse in the preparation of the hydroxylammonium salts and in preparation of the caprolactam.
    Type: Application
    Filed: November 10, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Lee Rigby, R. Sink
  • Insoluble Metal Sulfates in Water Absorbing Polymeric Particles
    Publication number: 20070293617
    Abstract: The invention concerns water-absorbing polymeric particles possessing high saline flow conductivity in the swollen state which comprise insoluble metal sulfates as synergistic fillers, and also a process for their production and their use.
    Type: Application
    Filed: November 28, 2005
    Publication date: December 20, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Riegel, Thomas Daniel, Dieter Hermeling, Mark Elliott
  • Disarmed Agrobacterium Strains, Ri-Plasmids, and Methods of Transformation Based Thereon
    Publication number: 20070292953
    Abstract: The present invention relates “disarmed” strain variants of Agrobacterium strain K599 (NCPPB 2659), “disarmed” plasmid variants of the Ri-plasmid pRi2659, and derivatives thereof, and methods employing these strains and plasmids in plant transformation.
    Type: Application
    Filed: August 31, 2005
    Publication date: December 20, 2007
    Applicant: BASF Plant Science GmbH
    Inventors: Luke Mankin, Dwight-Steven Hill, Paula Olhoft, Effie Toren, Jeffrey Brown, Liqun Xing, Huihua Fu, Lesley Ireland, Hongmei Jia, Hee-Sook Song, Allan Wenck, Larry Nea