Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M containing from 40 to 80% by weight of styrene as monomer M1, from 20 to 60% by weight of butadiene as monomer M2, and from 0 to 40% by weight, based on 100% by weight of monomers, of ethylenically unsaturated comonomers M3 other than styrene and butadiene by a monomer feed technique in the presence of from 0.05 to 0.5% by weight, based on 100% by weight of monomers, of at least one hydrocarbon HC selected from compounds having 6 to 20 carbon atoms which on abstraction of a hydrogen atom form a pentadienyl radical or a 1-phenylallyl radical and from ?-methylstyrene dimer comprises supplying the monomers to be polymerized to the polymerization reaction over the course of 3 hours.
Type:
Grant
Filed:
September 30, 2002
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Lambertus Manders, Thomas Wirth, Wolfgang Gaschler, Hubertus Kroener
Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M containing from 40 to 80% by weight of styrene as monomer M1, from 20 to 60% by weight of butadiene as monomer M2, and from 0 to 40% by weight, based on 100% by weight of monomers, of ethylenically unsaturated comonomers M3 other than styrene and butadiene by a monomer feed technique in the presence of from 0.05 to 0.5% by weight, based on 100% by weight of monomers, of at least one hydrocarbon HC having 6 to 20 carbon atoms, which is selected from compounds which on abstraction of a hydrogen atom form a pentadienyl radical or a 1-phenylallyl radical and from ?-methylstyrene dimer comprises including at least 30% of the hydrocarbon HC in the initial charge to the polymerization vessel and supplying the remainder of the hydrocarbon HC to the polymerization reaction in the course of that reaction.
Type:
Grant
Filed:
September 30, 2002
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Wolfgang Gaschler, Volker Schaedler, Lambertus Manders, Thomas Wirth, Hubertus Kroener
Abstract: Disclosed are fungicidal mixtures containing a synergistically effective amount of A) a triazolopyrimidine of formula I, and B) imidazole derivatives of formula II, wherein X1 and X2 represent halogen and phenyl which can be substituted by halogen or alkyl, or X1 and X2 form a difluoromethylendioxyphenyl group along with the bridging C?C double bond, X3 represents cyano or halogen, and X4 represents dialkylamino or isoxazol-4yl that can carry two alkyl radicals. The invention also relates to methods for controlling destructive fungi by means of mixtures of compounds I and II, agents containing said mixtures, and the use of compounds I and II for producing such mixtures.
Type:
Grant
Filed:
November 14, 2003
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Jordi Tormo i Blasco, Thomas Grote, Eberhard Ammermann, Reinhard Stierl, Siegfried Strathmann, Ulrich Schöfl
Abstract: A suspension system for a vehicle having a vehicle body and a plurality of wheels movable relative to the vehicle body. A hydraulic damper, which includes a piston rod and a cylinder, is disposed between the vehicle body and wheels. A striker plate is mounted to the cylinder and is displaceable with the cylinder relative to a support on the vehicle body. A jounce assembly is mounted to the support about the piston rod and extends outwardly toward the striker plate. The jounce assembly includes a jounce bumper and a cap. The cap is mounted to the jounce bumper with the cap having a flange extending to a distal edge for defining a cavity. The distal edge of the flange deflects into the cavity when the cap engages the striker plate during a predetermined displacement of the striker plate relative to the support.
Abstract: A process for the preparation of aqueous formulations, and aqueous formulations so prepared, the process comprising heating at least one cyclic compound of the formula I in the presence of water and of an acidic catalyst and, during or after the heating, H—X—R3 is at least partially separated off, where, in formula I, X is selected from oxygen, sulfur and N—R6, R1-R6 are as defined, and n is an integer from 1 to 4.
Type:
Grant
Filed:
January 22, 2004
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Stephan Hueffer, Guenter Scherr, Oliver Reese
Abstract: The present invention provides a process for preparing propargyl alcohol by converting an aqueous formaldehyde solution comprising acetylene over a catalyst comprising copper acetylide at an operating pressure of from 1 to 15 bar and from 70 to 120° C. without forming a continuous gas phase, in which the aqueous formaldehyde solution comprises an organic solvent for acetylene and the catalyst is arranged in a fluidized bed.
Type:
Grant
Filed:
July 3, 2004
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Maximilian Vicari, Martin Rudloff, Andreas Kramer, Ronald Drews
Abstract: The invention relates to methods for the fermentative production of sulfur-containing fine chemicals, in particular L-methionine, by using bacteria which express a nucleotide sequence coding for a methionine synthase (metF) gene.
Type:
Grant
Filed:
August 26, 2003
Date of Patent:
October 16, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Burkhard Kröger, Oskar Zelder, Corinna Kolpprogge, Hartwig Schröder, Stefan Häfner
Abstract: The present invention provides a method of preparing an electrocoat coating composition comprising forming an aqueous emulsion comprising a film-forming component and a volatile organic compound and removing at least a portion of the volatile organic compound by ultrafiltration.
Abstract: A herbicidal mixture, comprising a) a herbicidally effective amount of an imidazolinone herbicide selected from the group consisting of imazamox, imazapic, imazapyr; b) an adjuvant comprising at least one of the following components: a partial phosphoric ester or a partial sulfuric ester of a monohydroxy-functional polyalkyl ether and optionally c) a further additive.
Type:
Application
Filed:
April 9, 2007
Publication date:
October 11, 2007
Applicant:
BASF AKTIENGESELLSCHAFT
Inventors:
Thomas Byrne, Joseph Zawierucha, Charles Finch, Harold Quicke
Abstract: The present invention relates to a process for preparing granular or pulverulent detergent compositions, comprising the preparation of a detergent base powder by drying an aqueous detergent slurry, which comprises adding to the slurry a copolymer which is obtainable by free-radical copolymerization of (A) from 50 to 99.5 mol % of a monoethylenically unsaturated monocarboxylic acid and/or a salt thereof, (B) from 0.
Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.
Type:
Application
Filed:
July 6, 2005
Publication date:
October 11, 2007
Applicants:
BASF AKTIENGESELLSCHAFT, THE DOW CHEMICAL COMPANY
Abstract: A process is proposed for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc or pyrolysis of hydrocarbons to obtain a reaction gas mixture which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side of the compressor being controlled within a predefined range by means of a conventional controller, which comprises additionally using a high-level model-supported predictive controller which reacts to abrupt changes in the mass flow rate of the reaction gas mixture.
Type:
Application
Filed:
April 11, 2006
Publication date:
October 11, 2007
Applicant:
BASF Aktiengesellschaft
Inventors:
Kai Ehrhardt, Raymond Poche, William Scullin, Michael Hayes
Abstract: A method of making a coating composition includes salting a basic hindered amine light stabilizer with an acidic material and incorporating the salted hindered amine light stabilizer into a coating composition.
Abstract: The present invention provides a method of preparing an electrocoat coating composition, comprising forming an aqueous emulsion comprising a film-forming component and water and removing at least a portion of the water from the aqueous emulsion by ultrafiltration.
Type:
Application
Filed:
April 11, 2006
Publication date:
October 11, 2007
Applicant:
BASF CORPORATION
Inventors:
CHARLES TAZZIA, ROBERT SCHILLER, FRANKIE DOCK, ROBERT DOTY
Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is halogen, C1-C4-alkyl or C1-C4-alkoxy, k is 0, 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 8, generally in the region of 8 to 11.
Type:
Application
Filed:
June 7, 2005
Publication date:
October 11, 2007
Applicant:
BASF Aktiengesellschaft
Inventors:
Laszio Somogyi, Andrea Zamponi, Harald Kiesow
Abstract: A process for producing flame-resistant, expandable styrene polymers (EPS) or flame-resistant extruded styrene polymer foams (XPS), wherein an organic bromine compound having a bromine content of at least 70% by weight is used as flame retardant and a liquid peroxide, hydroperoxide or a peroxide solution is used as flame retardant synergist.
Type:
Application
Filed:
July 8, 2005
Publication date:
October 11, 2007
Applicant:
BASF Aktiengesellschaft
Inventors:
Klaus Hahn, Gerd Ehrmann, Joachim Ruch, Markus Allmendinger, Bernhard Schmied, Jan Holoch, Paulus Schmaus
Abstract: The invention concerns a method for ?-olefin trimerization comprising a number of carbon atoms not less than 3, by transforming an ?-olefin or a hydrocarbon mixture containing ?-olefins, at temperatures ranging between 0 and 150° C. and pressures ranging between 1 and 200 bars, in the presence of a catalyst. Said method uses a catalyst capable of being produced from: a) a compound of formula RMX3, wherein: R represents a cyclopentadienyl group whereof the hydrogen atoms can be partly or entirely substituted by identical or different alkyl groups and/or aryl groups, two substituents being capable of further forming a saturated or unsaturated hydrocarbon chain; M represents a titanium, zirconium or hafnium atom; and the groups X represent independently of one another extractable counter-ions; and b) at least an activating adjuvant.
Abstract: One aspect of the invention relates to a dehydrogenation catalyst composite containing alumina, chromium oxide, lithium oxide, and sodium oxide. The invention also relates to methods of making the dehydrogenation catalyst composite. Another aspect of the invention relates to method of dehydrogenating a dehydrogenatable hydrocarbon involving contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst composite containing alumina, chromium oxide, lithium oxide, and sodium oxide to provide a dehydrogenated hydrocarbon, such as an olefin.
Abstract: Process for separating triethanolamine continuously by distillation from a mixture of monoethanolamine, diethanolamine and triethanolamine together with ethanolamine ethers and water obtained by reaction of ammonia with ethylene oxide in the liquid phase under superatmospheric pressure and at elevated temperature, in which the mixture is distilled in two stages. The low-boiling fraction and the high-boiling fraction are taken off and discharged in the first stage and the intermediate-boiling fraction comprising >99.4% by weight of triethanolamine and <0.2% by weight of diethanolamine is distilled in the second stage. The distillation of the mixture is preferably carried out in a first column and a second column connected to this or in a dividing wall column.
Type:
Grant
Filed:
October 2, 2004
Date of Patent:
October 9, 2007
Assignee:
BASF Aktiengesellschaft
Inventors:
Wolfgang Reif, Hans Hammer, Guenther Ruider, Anton Meier, Philip Buskens, Matthias Frauenkron