Patents by Inventor Arthur Hohn
Arthur Hohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8889917Abstract: The present invention relates to a method of supplementing the catalyst in continuous hydroformylation during ongoing operation.Type: GrantFiled: April 11, 2013Date of Patent: November 18, 2014Assignee: BASF SEInventors: Edgar Zeller, Armin Ulonska, Arthur Höhn, Volker Uhrig, Rene Magnie, Reimund Fattler
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Publication number: 20130274525Abstract: The present invention relates to a method of supplementing the catalyst in continuous hydroformylation during ongoing operation.Type: ApplicationFiled: April 11, 2013Publication date: October 17, 2013Applicant: BASF SEInventors: Edgar Zeller, Armin Ulonska, Arthur Höhn, Volker Uhrig, Rene Magnie, Reimund Fattler
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Patent number: 7220888Abstract: The invention relates to a method for producing hydrocarbons having a modified carbon skeleton by reacting aliphatic hydrocarbons a) with themselves, b) with another aliphatic hydrocarbon or c) with aromatic alkyl substituted hydrocarbons, in the presence of a metal organic catalyst or the hybrid thereof, at a temperature of between 20–400° C. and a pressure of between 0.2–100 bars, wherein the reaction takes place in the presence of hydrogen.Type: GrantFiled: January 5, 2002Date of Patent: May 22, 2007Assignee: Basf AktiengesellschaftInventors: Dominic Vanoppen, Ekkehard Schwab, Jean-Marie Basset, Jean Thivolle-Cazat, Mostapha Taoufik, Michael Schulz, Arthur Höhn
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Patent number: 6852869Abstract: In a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers having a low color number, the polymers obtained by cationic polymerization of tetrahydrofuran are hydrogenated in the presence of a macroporous, supported heterogeneous catalyst comprising at least one metal of groups 7 to 10 of the Periodic Table of the Elements as active metal.Type: GrantFiled: July 24, 2001Date of Patent: February 8, 2005Assignee: BASF AktiengesellschaftInventors: Christoph Sigwart, Anton Meier, Michael Hesse, Volkmar Menger, Klaus-Peter Pfaff, Arthur Höhn, Lothar Franz
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Patent number: 6790995Abstract: Mixtures of primary amines of the formula (I) X—CH2—NH2 (I) and secondary amines of the formula (II) (X—CH2—)2NH (II) where X is C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycloalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino. C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonyl are prepared by reacting nitriles of the formula (III) X—CN (III) with hydrogen at from 50 to 250° C. and pressures of from 5 to 350 bar in the presence of a Pd-containing catalyst comprising, based on the total weight of the catalyst, from 0.1 to 10% by weight of Pd on a support.Type: GrantFiled: January 3, 2002Date of Patent: September 14, 2004Assignee: BASF AktiengesellschaftInventors: Joachim Pfeffinger, Michael Hüllmann, Arthur Höhn, Frank Funke, Frank Ohlbach, Till Gerlach
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Patent number: 6783693Abstract: Hydraulic fluids, in particular brake fluids for motor vehicles, comprising from 0.01 to 50 wt % of one or more cyclic carboxylates, or cyclic carboxamides, which can carry a linear or branched C1-bis C20 alkyl group on the nitrogen atom.Type: GrantFiled: October 18, 2001Date of Patent: August 31, 2004Assignee: BASF AktiengesellschaftInventors: Bayram Aydin, Uwe Fidorra, Arthur Höhn, Ladislaus Meszaros, Jan Nouwen, Knut Oppenländer, Michael Roida, Michael Stösser, Bernd Wenderoth
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Publication number: 20040092753Abstract: A method for producing unsaturated cyclic ethers of general formula (I) wherein Z represents (CHR4)q— or (CHR4)q—O—, q 0, 1, 2 or 3 and R1, R2, R3, R4 represent hydrogen or C1-C4-alkyl, by reacting dioles of general formula (II), wherein Z, R1, R2 and R3 have the above-mentioned meanings, in a liquid phase at temperatures of 150-300° C. in the presence of a support catalyst which is not activated prior to use by reduction and which contains cobalt and is doped with sulphur, containing cobalt, and an earth metal which is deposited by sol impregnation and is selected from the group containing platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or mixtures thereof, on an inert support, characterized in that water is added.Type: ApplicationFiled: September 3, 2003Publication date: May 13, 2004Inventors: Hagen Weigl, Klaus Ebel, Sylvia Huber, Andreas Kusche, Karsten Eller, Michael Hesse, Arthur Hohn
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Patent number: 6723880Abstract: 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: GrantFiled: June 19, 2002Date of Patent: April 20, 2004Assignee: BASF AktiengesellschaftInventors: Peter Neumann, Johann-Peter Melder, Christoph Benisch, Arthur Höhn, Joachim Pfeffinger
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Publication number: 20040059169Abstract: The invention relates to a method for producing hydrocarbons having a modified carbon skeleton by reacting aliphatic hydrocarbons a) with themselves, b) with another aliphatic hydrocarbon or c) with aromatic alkyl substituted hydrocarbons, in the presence of a metal organic catalyst or the hybrid thereof, at a temperature of between 20-400° C. and a pressure of between 0.2-100 bars, wherein the reaction takes place in the presence of hydrogen.Type: ApplicationFiled: June 25, 2003Publication date: March 25, 2004Inventors: Dominic Vanoppen, Ekkehard Schwab, Jean-Marie Basset, Jean Thivolle-Cazat, Mostapha Taoufik, Michael Schulz, Arthur Hohn
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Patent number: 6689914Abstract: The preparation of amines of the formula (I): R1R2CH—N R3R4 (I) in which R1, R2, R3 and R4, independently of one another, are hydrogen, straight-chain or branched C1-C12-alkyl, C3-C12-cycloalkyl, C6-C10-aryl or C7-C11-aralkyl, takes place by catalytic, reductive amination of mixtures comprising carbonyl compounds of the formula (II) and/or alcohols of the formula (III) R1—C(═O)—R2 (II) R1—CH(OH)—R2 (III) which also comprise at least 50 ppm, based on the mixtures, of halogen, with nitrogen compounds of the formula (IV): H N R3 R4 (IV) with the abovementioned meanings for R1 to R4, in the presence of Co- and/or Ni-containing catalysts, which comprises carrying out the reductive amination additionally in the presence of solid acidic cocatalysts.Type: GrantFiled: September 5, 2002Date of Patent: February 10, 2004Assignee: BASF AktiengesellschaftInventors: Martin Schäfer, Arnd Böttcher, Andreas Kramer, Arthur Höhn, Shelue Liang, Frank Funke
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Publication number: 20040024172Abstract: In a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers having a low color number, the polymers obtained by cationic polymerization of tetrahydrofuran are hydrogenated in the presence of a macroporous, supported heterogeneous catalyst comprising at least one metal of subgroups VII [sic] to X [sic] of the Periodic Table of the Elements as active metal.Type: ApplicationFiled: February 6, 2003Publication date: February 5, 2004Inventors: Christoph Sigwart, Anton Meier, Michael Hesse, Volkmar Menger, Klaus-Peter Pfaff, Arthur Hohn, Lothar Franz
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Patent number: 6677495Abstract: A process for preparing cyclopentene oligomer mixtures of the formula I comprises reacting in a homogeneously or heterogeneously catalyzed metathesis reaction a hydrocarbon mixture which contains cyclopentene and acyclic monoolefins and which originates from petroleum processing by cracking (C5 fraction); cyclopentene oligomers of the formula I obtainable by this process and their use are also described.Type: GrantFiled: June 21, 1999Date of Patent: January 13, 2004Assignee: BASF AktiengesellschaftInventors: Peter Schwab, Martin Schäfer, Arthur Höhn
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Patent number: 6627756Abstract: Pure triethylenediamine (TEDA) is prepared by vaporizing TEDA, introducing the gaseous TEDA into a liquid solvent and subsequently crystallizing the TEDA from the solution obtained in this way.Type: GrantFiled: July 11, 2000Date of Patent: September 30, 2003Assignee: BASF AktiengesellschaftInventors: Hartmut Riechers, Arthur Höhn, Joachim Simon, Ortmund Lang, Hartmut Schoenmakers, Matthias Rauls, Koen Claerbout
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Patent number: 6576795Abstract: Optically active amines of the formula I where R1 and R2 are different and R1, R2, R3 are alkyl, cycloalkyl, arylalkyl, aryl, heteroaryl and heterocyclic radicals and R3 may also be hydrogen (H), with the radicals being able to bear substituents selected from the group consisting of alkyl, cycloalkyl, alkoxy, aryloxy, amino, alkylamino and dialkylamino, are racemized by reacting the optically active amine I in the presence of hydrogen and a hydrogenation or dehydrogenation catalyst at elevated temperature, wherein the catalyst comprises the active components copper and zinc oxide and a support material.Type: GrantFiled: October 1, 2002Date of Patent: June 10, 2003Assignee: BASF AktiengesellschaftInventors: Frank Funke, Shelue Liang, Andreas Kramer, Rainer Stürmer, Arthur Höhn
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Publication number: 20030097021Abstract: The preparation of amines of the formula (I)Type: ApplicationFiled: September 5, 2002Publication date: May 22, 2003Inventors: Martin Schafer, Arnd Bottcher, Andreas Kramer, Arthur Hohn, Shelue Liang, Frank Funke
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Patent number: 6563004Abstract: Monoisopropylamine is prepared by reacting acetone with ammonia and with hydrogen at elevated temperature and elevated pressure in the presence of a catalyst, wherein the catalytically active mass of the catalyst comprises, after its preparation and before the treatment with hydrogen, from 20 to 90% by weight of aluminum oxide (Al2O3), zirconium dioxide (ZrO2), titanium dioxide (TiO2) and/or silicon dioxide (SiO2), from 1 to 70% by weight of oxygen-containing compounds of copper, calculated as CuO, from 1 to 70% by weight of oxygen-containing compounds of nickel, calculated as NiO, and from 1 to 70% by weight of oxygen-containing compounds of cobalt, calculated as CoO.Type: GrantFiled: December 5, 2000Date of Patent: May 13, 2003Assignee: BASF AktiengesellschaftInventors: Jan Nouwen, Stefan Käshammer, Arthur Höhn, Frank Funke, Johann-Peter Melder, Frank Gutschoven, Philip Buskens
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Patent number: 6548704Abstract: Optically active amines of the formula I where R1 and R2 are different and R1, R2, R3 are alkyl, cycloalkyl, arylalkyl, aryl, heteroaryl and heterocyclic radicals and R3 may also be hydrogen (H), with the radicals being able to bear substituents selected from the group consisting of alkyl, cycloalkyl, alkoxy, aryloxy, amino, alkylamino and dialkylamino, are racemized by reacting the optically active amine I in the presence of hydrogen and a hydrogenation or dehydrogenation catalyst at elevated temperature, wherein the catalyst comprises the active components copper and zinc oxide and a support material.Type: GrantFiled: December 12, 2001Date of Patent: April 15, 2003Assignee: BASF AktiengesellschaftInventors: Frank Funke, Shelue Liang, Andreas Kramer, Rainer Stürmer, Arthur Höhn
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Patent number: 6538139Abstract: Pyrroles of the formula (I) are prepared by dehydrogenating pyrrolidines of the formula (II) where R1 and R2, independently of one another, are hydrogen or an aliphatic radical of 1 to 6 carbon atoms, or pyridines of the formula (III) are prepared by dehydrogenating piperidines of the formula (IV) where R3, R4 and R5, independently of one another, are hydrogen or an aliphatic radical of 1 to 6 carbon atoms, in the presence of a supported noble metal catalyst, by a process in which the dehydrogenation is carried out in the presence of from 1 to 50% by weight, based on the pyrrolidine or piperidine and water, of water.Type: GrantFiled: September 5, 2002Date of Patent: March 25, 2003Assignee: BASF AktiengesellschaftInventors: Martin Schäfer, Arnd Böttcher, Andreas Kramer, Arthur Höhn, Reinhard Kaczmarek, Erhard Henkes
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Patent number: 6525222Abstract: Amines are prepared by reacting aldehydes or ketones at elevated temperature under elevated pressure with nitrogen compounds selected from the group of ammonia, primary and secondary amines, and with hydrogen in the presence of a catalyst, wherein the catalytically active mass of the catalyst contains, after its preparation and before the treatment with hydrogen, 22 to 45% by weight of oxygen-containing compounds of zirconium, calculated as ZrO2, 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, 5 to 50% by weight of oxygen-containing compounds of nickel, calculated as NiO, where the molar ratio of nickel to copper is greater than 1, 5 to 50% by weight of oxygen-containing compounds of cobalt, calculated as CoO, 0 to 5% by weight of oxygen-containing compounds of molybdenum, calculated as MoO3, and 0 to 10% by weight of oxygen-containing compounds of aluminum and/or manganese, calculated as Al2O3 or MnO2.Type: GrantFiled: December 5, 2000Date of Patent: February 25, 2003Assignee: BASF AktiengesellschaftInventors: Jan Nouwen, Arthur Höhn, Horst Neuhauser, Frank Funke, Stephan Andreas Schunk, Johann-Peter Melder, Knut Eger, Michael Hesse, Joachim Wulff-Döring
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Patent number: 6525223Abstract: Secondary amines of the formula (II) (X—CH2—)2NH (II) where X is a C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl group which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycoalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino, C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonyl, are prepared by reacting nitriles of the formula (III) X—CN (III) with hydrogen at from 20 to 250° C. and pressures of from 60 to 350 bar in the presence of an Rh-containing catalyst comprising from 0.Type: GrantFiled: December 27, 2001Date of Patent: February 25, 2003Assignee: BASF AktiengesellschaftInventors: Joachim Pfeffinger, Michael Hüllmann, Arthur Höhn, Frank Funke, Frank Ohlbach, Till Gerlach