Patents Represented by Attorney Michael A. Miller
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Patent number: 8329108Abstract: In an isoolefin-diolefin rubber production process (e.g. a butyl rubber production process), the cold rubber slurry produced in the reaction vessel is transported from the reaction vessel to the flash tank during which time the cold slurry may be expressed to separate at least part of the cold liquid reaction medium from the isoolefin-diolefin rubber. The separated cold liquid reaction medium is transported off stream, for example by a mechanical filter, where it can be recycled back into the reaction vessel and/or where it can be used to cool a feed stream or streams of the reaction components. The isoolefin-diolefin rubber and the residual liquid reaction medium are transported to a flash tank for further processing. The ability to separate and recycle cold liquid reaction medium makes the process more economical.Type: GrantFiled: December 16, 2010Date of Patent: December 11, 2012Assignee: Lanxess Inc.Inventors: John Lovegrove, Hans-Juergen Mick
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Patent number: 8323357Abstract: The use of fluorine-substituted perylenes in color filters for liquid-crystal displays is described.Type: GrantFiled: April 1, 2010Date of Patent: December 4, 2012Assignee: LANXESS Deutschland GmbHInventors: Ulrich Feldhues, Frank Linke, Stephan Michaelis, Dirk Pfuetzenreuter
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Patent number: 8314243Abstract: A process is described for catalytically preparing optionally substituted aromatic or heteroaromatic nitrites of the general formula (I) Ar—CN??(I) by reacting the corresponding aryl halides of the general formula (II) Ar—X??(II) in which X is chlorine, bromine, iodine, triflate, nonaflate, mesylate or tosylate and Ar is an optionally substituted aromatic or heteroaromatic radical, characterized in that the reaction is performed in the presence of a palladium compound, a phosphine of the general formula (III) or (IV) where R is an alkyl radical and R?, R? and R?? are each an alkyl radical or an aryl radical or heteroaryl radical and A is an alkylene or arylene radical, and potassium hexacyanoferrate(II) or potassium hexacyanoferrate(III), optionally in a solvent and optionally with addition of a base.Type: GrantFiled: November 21, 2007Date of Patent: November 20, 2012Assignee: Saltigo GmbHInventors: Nikolaus Müller, Wolfgang Mägerlein, Alain Cotté, Matthias Beller, Thomas Schareina, Alexander Zapf
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Patent number: 8309732Abstract: What is described is a process for preparing compounds of the general formula (I) in which R1, R2 and R3 independently of one another represent hydrogen, an alkyl group or an aryl group, wherein compounds of the general formula (II) in which R1 and R2 have the meaning given for formula (I), are reacted with an alkylating agent of the general formula (III) R3X??(III), in which X represents a halogen atom and R3 has the meaning given for formula (I), if appropriate in a solvent.Type: GrantFiled: April 6, 2009Date of Patent: November 13, 2012Assignee: Saltigo GmbHInventors: Andreas Job, Denys Baskakov, Ralf Krahwinkel, Antje Hieronymi
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Patent number: 8304550Abstract: Described is a process for preparing diaryl ethers of the formula (I) Ar—O—Ar???(I) In which Ar is an aryl or substituted aryl group and Ar? is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, by reacting an aryl of formula (II) or a aryloxy salt of formula (III) Ar—OH??(II) Ar—OR??(III) In which Ar has the same meaning as in formula (I) and R is an alkali metal, with an aryl or heteroaryl bromide of formula (IV) Ar?—Br??(IV) In which Ar? has the same meaning as in formula (I), characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.Type: GrantFiled: November 21, 2008Date of Patent: November 6, 2012Assignee: Saltigo GmbHInventors: Alain Cotte, Nikolaus Muller, Matthias Gotta, Matthias Beller, Thomas Schareina, Alexander Zapf
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Patent number: 8304491Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.Type: GrantFiled: September 28, 2011Date of Patent: November 6, 2012Inventors: Lothar Reif, Christian Lente
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Patent number: 8258314Abstract: A process is described for the preparation of substituted heteroaromatics of the general formula (I) where X is oxygen, sulphur or NR5 where R5 is hydrogen, C1-C20-alkyl or C5-C6-aryl and R4 is C1-C20-alkyl, C5-C6-aryl or heteroaryl, R1, R2, R3 is hydrogen, halogen, C1-C20-alkyl, C5-C6-aryl or heteroaryl, by reaction A) of a halogenated heteroaromatic of the general formula (II) where X has the meaning given for formula (I) and R6 is bromine, iodine or chlorine and R1, R2 and R3 have the meaning given for formula (I), with a Grignard reagent of the general formula (III) R4MgHal??(III) where R4 has the meaning given for formula (I) and Hal is bromine, iodine or chlorine or B) reaction of the halogenated heteroaromatics of the formula (II) with magnesium firstly to give a Grignard compound of the general formula (IIIa) where Hal is bromine, iodine or chlorine and X and R1, R2 and R3 have the meaning given for formula (I), and further reaction with a halogenated compound of the generaType: GrantFiled: May 27, 2008Date of Patent: September 4, 2012Assignee: SALTIGO GmbHInventors: Antje Hieronymi, Lars Rodefeld
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Process for preparing benzomorpholine derivatives by hydrogenating o-nitrophenoxy carbonyl compounds
Patent number: 8252924Abstract: A process for preparing benzomorpholine derivatives is described, in which an o-nitrophenoxy carbonyl compound is hydrogenated in the presence of extraneous metal-doped sponge metal catalysts based on nickel or cobalt with ring formation.Type: GrantFiled: December 18, 2009Date of Patent: August 28, 2012Assignee: SALTIGO GmbHInventors: Matthias Boll, Burkhard Koch -
Patent number: 8246942Abstract: The invention relates to synergistic mixtures of o-phenylphenol with other microbicidally active compounds, such as bronopol (2-bromo-2-nitro-1,3-propanedial), 2-methyl-2H-isothiazol-3-one, 1,2-dibromo-2,4-dicyanobutane.Type: GrantFiled: March 1, 2011Date of Patent: August 21, 2012Assignee: LANXESS Deutschland GmbHInventors: Peter Wachtler, Martin Kugler
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Patent number: 8227641Abstract: Process for the preparation of polyfunctional amines of the formulae by hydrogenation of the associated nitriles of the formulae with hydrogen, where A is an aromatic or aliphatic compound from the group of unsubstituted or substituted phenylene or naphthylene, methylene, unsubstituted or substituted ethylene, propylene, unsubstituted or substituted straight-chain or branched butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene and B is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, and X can be missing or is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, wherein a melt, solution or suspension of the nitrile of formula (III) or (IV) is added over the course of the reaction time to a suspension or solution of a catalyst in a solvent which comprises ammonia and is stirred at a temperature range from 60 to 150° C. under hydrogen pressure.Type: GrantFiled: December 12, 2007Date of Patent: July 24, 2012Assignee: SALTIGO GmbHInventors: Florian Rampf, Guido Giffels
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Patent number: 8227626Abstract: The invention relates to novel fluorinated achiral 1,3-benzodioxanes of the general formula (I-a) and (I-b) and to the preparation thereof.Type: GrantFiled: January 18, 2011Date of Patent: July 24, 2012Assignee: LANXESS Deutschland GmbHInventors: Jens Peter Joschek, Albrecht Marhold, Axel Pleschke
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Patent number: 8222408Abstract: A process for preparing acyl amide compounds is described, in which a recrystallized o-nitrophenoxy carbonyl compound is hydrogenated with hydrogen gas in the presence of a nickel sponge metal catalyst with ring closure to form a benzoxazine, which is then reacted with an acyl halide to give the corresponding acyl amide compound.Type: GrantFiled: December 18, 2009Date of Patent: July 17, 2012Assignee: SALTIGO GmbHInventors: Matthias Boll, Burkhard Koch
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Patent number: 8203006Abstract: The present invention relates to the industrial production of vinylene carbonate (VC) by eliminating hydrogen chloride from chloroethylene glycol carbonate (CGC) or solid catalysts in the gas phase, the reaction being carried out over a catalyst bed agitated by thorough mixing.Type: GrantFiled: May 4, 2006Date of Patent: June 19, 2012Assignee: Saltigo GmbHInventors: Reinhard Langer, Anke Beckmann, Andreas Schulze Tilling, Paul Wagner, Leslaw Mleczko, Sigurd Buchholz
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Patent number: 8198379Abstract: The present invention relates to the modification of butyl elastomers, particularly halobutyl elastomers, under solvent free conditions with a phase transfer catalyst in the presence of an alkyl metal salt of an oxygen or sulfur-based nucleophile.Type: GrantFiled: August 2, 2006Date of Patent: June 12, 2012Assignee: LANXESS Inc.Inventors: John Scott Parent, Ralph Allen Whitney, Sergio A. Guillén-Castellanos, Rui Resendes
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Patent number: 8143455Abstract: What is described is a process for preparing 2-hydroxyacetals of the general formula in which R1 is hydrogen, a branched or unbranched C1-C12-alkyl radical, an electron-deficient, halogen-, NO2—, CN—, CF3—, acyl group- or branched or unbranched alkyl group-substituted or unsubstituted C5-C6-aryl or heteroaryl, and R2 is a branched or unbranched C1-C5-alkyl radical, or both R2 radicals are bonded directly to one another or to one another via a C1-C4 unit, by reacting an enol compound of the general formula (II) in which R3 is the same and R1 is as defined for formula (Ia), with bromine to give the corresponding dibromo adduct and then reacting this dibromo adduct with an alkoxide of the general formula (III) M-O—R2 (III) in which R2 is as defined for formula (Ia) and O is oxygen and M is lithium, sodium or potassium. What is likewise described is the preparation of the corresponding 2-hydroxyalkanals from the 2-hydroxyacetals thus obtained by acidic hydrolysis.Type: GrantFiled: June 11, 2008Date of Patent: March 27, 2012Assignee: SALTIGO GmbHInventors: Thomas-Norbert Müller, Michael Dockner
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Patent number: 8143361Abstract: The present invention relates to a solar module containing at least one layer made up of at least one ?-olefin-vinyl acetate copolymer which has a vinyl acetate content of ?40% by weight, based on the total weight of the ?-olefin-vinyl acetate copolymer, and has been prepared by a solution polymerization process at a pressure of from 100 to 700 bar, the use of the ?-olefin-vinyl acetate copolymer mentioned in solar modules, the use of the solar module of the invention for stationary or mobile power generation and also a solar power plant containing at least one solar module according to the invention.Type: GrantFiled: August 28, 2008Date of Patent: March 27, 2012Assignee: LANXESS Deutschland GmbHInventors: Gerd Bergmann, Gerd Deimel, Michael Herrmann, Arndt Kremers, Martin Mezger, Harry Zumaque
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Patent number: 8137430Abstract: The invention relates to a method for producing a formulation containing calcium formiate, to the formulation itself, and to the use thereof for producing a product, and the use thereof as a fertilizer.Type: GrantFiled: November 12, 2007Date of Patent: March 20, 2012Assignee: LANXESS Deutschland GmbHInventors: Ralph Armbrust, Peter Baur
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Patent number: 8124813Abstract: The invention relates to a novel process for preparing 2-phenoxyacetals and the corresponding 2-phenoxycarbaldehydes. These compounds are important intermediates for the preparation of active pharmaceutical ingredients.Type: GrantFiled: June 11, 2008Date of Patent: February 28, 2012Assignee: SALTIGO GmbHInventors: Thomas-Norbert Müller, Michael Dockner
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Patent number: 8114558Abstract: Use of pigments of the formula (I) containing melamine as guest compound and having a dispersion harshness of more than 250 as pigments for color filters for liquid-crystal displays.Type: GrantFiled: July 17, 2006Date of Patent: February 14, 2012Assignee: LANXESS Deutschland GmbHInventors: Ulrich Feldhues, Frank Linke, Ronald Göbel, Dirk Pfuetzenreuter, Udo Herrmann
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Patent number: 8115018Abstract: What is described is a process for brominating alkylthiophene, in which an alkylthiophene of the general formula (I) where R is a branched or unbranched alkyl radical having 1 to 12 carbon atoms is contacted with stoichiometric amounts of HBr and H2O2, optionally in the presence of a solvent.Type: GrantFiled: April 7, 2009Date of Patent: February 14, 2012Assignee: SALTIGO GmbHInventors: Antje Hieronymi, Andreas Martin, Witold Broda