Patents by Inventor Gerd-Dieter Tebben
Gerd-Dieter Tebben 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: 10301244Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral ?,?-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral ?,?-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g.Type: GrantFiled: April 27, 2018Date of Patent: May 28, 2019Assignee: BASF SEInventors: Mathias Schelwies, Rocco Paciello, Gunnar Heydrich, Günter Wegner, Gerd-Dieter Tebben, Martin Haubner, Andreas Keller, Oliver Bey, Stephanie Renz, Georg Seeber
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Publication number: 20180244598Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral ?,?-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral ?,?-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g.Type: ApplicationFiled: April 27, 2018Publication date: August 30, 2018Inventors: Mathias SCHELWIES, Rocco PACIELLO, Gunnar HEYDRICH, Günter WEGNER, Gerd-Dieter TEBBEN, Martin HAUBNER, Andreas KELLER, Oliver BEY, Stephanie RENZ, Georg SEEBER
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Patent number: 9975837Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral ?,?-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral ?,?-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g.Type: GrantFiled: December 18, 2015Date of Patent: May 22, 2018Assignee: BASF SEInventors: Mathias Schelwies, Rocco Paciello, Gunnar Heydrich, Günter Wegner, Gerd-Dieter Tebben, Martin Haubner, Andreas Keller, Oliver Bey, Stephanie Renz, Georg Seeber
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Patent number: 9132417Abstract: In a process for preparing a supported hydrogenation catalyst with increased hydrogenation activity, which comprises a hydrogenating metal and/or an oxide of a hydrogenating metal on an Al2O3-containing support material, said calcined supported hydrogenation catalyst is treated before or after the final shaping thereof and before use thereof in the hydrogenation with a base solution having a pH of >10 at a temperature in the range from 20 to 120° C. for 1 to 300 hours.Type: GrantFiled: November 16, 2010Date of Patent: September 15, 2015Assignee: BASF SEInventors: Rolf Tompers, Heiko Urtel, Rolf Pinkos, Gerd-Dieter Tebben, Jens Heimann, Maria Guixa Guardia, Sabine Borchers
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Patent number: 8759594Abstract: The present invention relates to a process for hydrogenating oligo- and/or polyesters obtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copper oxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybdenum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediol by catalytically hydrogenating ester mixtures which comprise, as main components, oligo- and polyesters of adipic acid and 6-hydroxycaproic acid, and are obtained by esterifying DCS with diols, especially 1,6-hexanediol or diol mixtures.Type: GrantFiled: March 29, 2010Date of Patent: June 24, 2014Assignee: BASF SEInventors: Olivier Abillard, Rolf Pinkos, Gerd-Dieter Tebben, Tilman Sirch, Daniel Urbanczyk, Heiko Urtel, Rolf Tompers
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Patent number: 8629306Abstract: The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol.Type: GrantFiled: March 29, 2010Date of Patent: January 14, 2014Assignee: BASF SEInventors: Rolf Pinkos, Daniel Breuninger, Gerd-Dieter Tebben
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Publication number: 20130253132Abstract: Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 2-isopropyl-2-alkyl-1,3-propanediols of the formula I or alkoxylated derivatives thereof.Type: ApplicationFiled: May 21, 2013Publication date: September 26, 2013Applicant: BASF SEInventors: Darijo MIJOLOVIC, Sebastien GARNIER, Qiang MIAO, Maria GUIXA-GUARDIA, Gerd-Dieter TEBBEN
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Patent number: 8530570Abstract: Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 2-isopropyl-2-alkyl-1,3-propanediols of the formula I or alkoxylated derivatives thereof.Type: GrantFiled: July 21, 2009Date of Patent: September 10, 2013Assignee: BASF SEInventors: Darijo Mijolovic, Sebastien Garnier, Qiang Miao, Maria Guixa Guardia, Gerd-Dieter Tebben
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Patent number: 8519084Abstract: A polymer obtainable by polycondensation or polyaddition of monomeric compounds, wherefor accompanying use is made as monomeric compound of 2-(2-methylbutyl)-2-propyl-1,3-propanediol of the formula I or its alkoxylated derivatives (also referred to collectively below as C11 diol).Type: GrantFiled: June 10, 2009Date of Patent: August 27, 2013Assignee: BASF SEInventors: Darijo Mijolovic, Sebastien Garnier, Qiang Miao, Maria Guixa Guardia, Gerd-Dieter Tebben, Dag Wiebelhaus
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Patent number: 8471042Abstract: The invention relates to a process for preparing 1,6-hexanediol and caprolactone, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol and cyclizing 6-hydroxycaproic ester, the 1,4-cyclohexanediols being removed either in the course of fractionation of the esterification mixture or last from the caprolactone.Type: GrantFiled: March 31, 2010Date of Patent: June 25, 2013Assignee: BASF SEInventors: Rolf Pinkos, Daniel Breuninger, Gerd-Dieter Tebben
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Publication number: 20120245394Abstract: In a process for preparing a supported hydrogenation catalyst with increased hydrogenation activity, which comprises a hydrogenating metal and/or an oxide of a hydrogenating metal on an Al2O3-containing support material, said calcined supported hydrogenation catalyst is treated before or after the final shaping thereof and before use thereof in the hydrogenation with a base solution having a pH of >10 at a temperature in the range from 20 to 120° C. for 1 to 300 hours.Type: ApplicationFiled: November 16, 2010Publication date: September 27, 2012Inventors: Rolf Tompers, Heiko Urtel, Rolf Pinkos, Gerd-Dieter Tebben, Jens Heimann, Maria Guixa Guardia, Sabine Borchers
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Patent number: 8247580Abstract: The present invention provides a process for preparing ?-caprolactone in a purity of more than 99% by cyclizing 6-hydroxycaproic esters in the liquid phase at from 150 to 400° C. and from 1 to 1020 hPa abs., and removing and condensing the compounds which are volatile under cyclization conditions, which comprises thermally treating the remaining bottom product of the cyclization in at least one further reactor, removing and condensing volatile compounds and obtaining ?-caprolactone by distillation from the condensates.Type: GrantFiled: October 28, 2008Date of Patent: August 21, 2012Assignee: BASF SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Thomas Krug, Tilman Sirch, Todd C Spengeman, Stephanie A. Bejune, Jeffrey T. Andress, Todd Gasiorowski
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Patent number: 8217186Abstract: The invention relates to a process for preparing ?-caprolactone from 6-hydroxycaproic ester in the gas phase in the presence of activated carbon as a catalyst and subsequent distillation.Type: GrantFiled: December 10, 2008Date of Patent: July 10, 2012Assignee: BASF SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Daniel Breuninger, Tilman Sirch, Christophe Bauduin, Maria Guixa Guardia, Thomas Krug
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Patent number: 8188320Abstract: The present invention relates to a process for preparing at least one cyclic compound with Z cycles and 7 to 16 carbon atoms with a keto group, at least comprising the stages: (a1) oxidation of a composition (A), at least comprising one cyclic olefin with Z cycles and 7 to 16 carbon atoms and at least two C—C double bonds, by means of dinitrogen monoxide to give a composition (A1), (a2) separating off the at least one cyclic olefin with Z cycles and 7 to 16 carbon atoms with at least two C—C double bonds from the composition (A1) in order to obtain a composition (A2), and (b) distillative treatment of the composition (A2) from step (a2) in order to obtain a composition (B), comprising the at least one cyclic compound with Z cycles and 7 to 16 carbon atoms with a keto group and less than 1.0% by weight of the at least one compound with Z?1 cycles and 7 to 16 carbon atoms with at least one aldehyde group, where Z can be 1, 2, 3 or 4.Type: GrantFiled: January 27, 2010Date of Patent: May 29, 2012Assignee: BASF SEInventors: Joaquim Henrique Teles, Beatrice Röβler-Feigel, Alexander Hauk, Anton Meier, Christian Müller, Michael Schelper, Tanja Kirchner, Susanne Szeschkus, Rolf Pinkos, Gerd-Dieter Tebben
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Patent number: 8183411Abstract: The present application relates to an improved process for preparing 6-hydroxycaproic esters from the by-product mixtures which are obtained in the oxidation of cyclohexane to cyclohexanol and cyclohexanone with oxygen or oxygen-comprising gas mixtures.Type: GrantFiled: January 29, 2009Date of Patent: May 22, 2012Assignee: BASF SEInventors: Rolf Pinkos, Tilman Sirch, Gerd-Dieter Tebben, Rolf-Hartmuth Fischer
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Publication number: 20120108779Abstract: The invention provides a method for producing polyols, comprising the steps of a) reacting unsaturated natural fats, unsaturated natural fatty acids and/or fatty acid esters with dinitrogen monoxide, b) reacting the product obtained in step a) with hydrogen using a heterogeneous catalyst.Type: ApplicationFiled: July 9, 2010Publication date: May 3, 2012Applicant: BASF SEInventors: Andreas Kunst, Michael Schelper, Joaquim Henrique Teles, Berend Eling, Jenny Reuber, Gerd-Dieter Tebben
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Publication number: 20120108780Abstract: A method for producing a polyol, the method including: (a) reacting at least one selected from the group consisting of an unsaturated natural fat, an unsaturated natural fatty acid, and a fatty acid ester with dinitrogen monoxide, to obtain a first intermediate; (b) reacting the first intermediate with a hydrogenation reagent, to obtain a second intermediate; (c) reacting the second intermediate with at least one alkylene oxide, to obtain a polyol.Type: ApplicationFiled: July 9, 2010Publication date: May 3, 2012Applicant: BASF SEInventors: Andreas Kunst, Michael Schelper, Joaquim Henrique Teles, Berend Eling, Jenny Reuber, Gerd-Dieter Tebben
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Publication number: 20120035399Abstract: The present invention relates to a process for hydrogenating oligo- and/or polyesters obtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copper oxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybdenum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediol by catalytically hydrogenating ester mixtures which comprise, as main components, oligo- and polyesters of adipic acid and 6-hydroxycaproic acid, and are obtained by esterifying DCS with diols, especially 1,6-hexanediol or diol mixtures.Type: ApplicationFiled: March 29, 2010Publication date: February 9, 2012Applicant: BASF SEInventors: Olivier Abillard, Rolf Pinkos, Gerd-Dieter Tebben, Tilman Sirch, Daniel Urbanczyk, Heiko Urtel, Rolf Tompers
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Publication number: 20120022298Abstract: The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol.Type: ApplicationFiled: March 29, 2010Publication date: January 26, 2012Applicant: BASF SEInventors: Rolf Pinkos, Daniel Breuninger, Gerd-Dieter Tebben
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Patent number: RE49036Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral ?,?-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral ?,?-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g.Type: GrantFiled: July 25, 2019Date of Patent: April 19, 2022Assignee: BASF SEInventors: Mathias Schelwies, Rocco Paciello, Gunnar Heydrich, Günter Wegner, Gerd-Dieter Tebben, Martin Haubner, Andreas Keller, Oliver Bey, Stephanie Renz, Georg Seeber