Patents by Inventor Matthias Orschel
Matthias Orschel 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: 10343975Abstract: A process for fine purification of isophoronediamine (IPDA), including producing IPDA by aminating hydrogenation of isophorone nitrile in the presence of at least ammonia, hydrogen, a a hydrogenation catalyst and optionally further additions to obtain a crude IPDA, and subjecting the crude IPDA to a fine purification via two vacuum distillation columns, wherein in the first vacuum distillation column the removal of any remaining relatively low-boiling byproducts is effected and in the second vacuum distillation column the IPDA is obtained in pure form as tops and thus separated from the organic residues, and wherein the first vacuum distillation column has vacuum distillation column has a partial condenser fitted to it.Type: GrantFiled: March 30, 2017Date of Patent: July 9, 2019Assignee: Evonik Degussa GmbHInventors: Anne Rittsteiger, Alexander Martin Rüfer, Guido Streukens, Stephan Kohlstruk, Matthias Orschel, Matthias Mendorf, Jorn Walscharts, Axel Hengstermann, Anja Müller
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Publication number: 20170298003Abstract: A process for fine purification of isophoronediamine (IPDA), including producing IPDA by aminating hydrogenation of isophorone nitrile in the presence of at least ammonia, hydrogen, a a hydrogenation catalyst and optionally further additions to obtain a crude IPDA, and subjecting the crude IPDA to a fine purification via two vacuum distillation columns, wherein in the first vacuum distillation column the removal of any remaining relatively low-boiling byproducts is effected and in the second vacuum distillation column the IPDA is obtained in pure form as tops and thus separated from the organic residues, and wherein the first vacuum distillation column has vacuum distillation column has a partial condenser fitted to it.Type: ApplicationFiled: March 30, 2017Publication date: October 19, 2017Inventors: Anne Rittsteiger, Alexander Martin Rüfer, Guido Streukens, Stephan Kohlstruk, Matthias Orschel, Matthias Mendorf, Jorn Walscharts, Axel Hengstermann, Anja Müller
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Patent number: 9453210Abstract: The invention relates to cells and a method for producing acetone.Type: GrantFiled: February 23, 2010Date of Patent: September 27, 2016Assignee: Evonik Degussa GmbHInventors: Franz Ulrich Becker, Gerda Grund, Matthias Orschel, Kai Doderer, Gerd Loehden, Gerd Brand, Peter Duerre, Simone Thum, Hubert Johannes Bahl, Ralf-Joerg Fischer, Antje May
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Patent number: 9085506Abstract: The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or, in abbreviated form, IPDA, by: I. preparation of isophorone by catalyzed aldol condensations with acetone as reactant; II. reaction of isophorone with HCN to form isophoronenitrile (IPN, 3-cyano-3,5,5-trimethylcyclohexanone); III. catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminative hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, hereinafter called isophoronenitrile or, in abbreviated form, IPN, to give the isophoronediamine.Type: GrantFiled: November 18, 2011Date of Patent: July 21, 2015Assignee: Evonik Degussa GmbHInventors: Markus Galle, Gerda Grund, Axel Hengstermann, Michael D Hinton, Rolf Hirsch, Robert Jansen, Cord Knoop, Christian Lettmann, Juergen Lippe, Martin Maier, Joerg-Joachim Nitz, Matthias Orschel, Martina Ortelt, Norbert Richter, Armin Rix, Markus Schwarz, Guido Streukens
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Patent number: 9035102Abstract: A process for preparing isophorone (3,5,5-trimethyl-2-cyclohexen-1-one) is provided wherein distillation vapors from the work-up of product fractions are recycled to earlier stages of operation of the process.Type: GrantFiled: August 8, 2014Date of Patent: May 19, 2015Assignee: Evonik Industries AGInventors: Joerg-Joachim Nitz, Stephan Kohlstruk, Robert Jansen, Matthias Orschel, Andreas Merkel, Michael Demming, Matthias Mendorf, Jens Doering, Axel Hengstermann, Andreas Hoff, Anja Mueller
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Patent number: 8986961Abstract: The invention describes a process for preparing acetone starting from acetyl-coenzyme A comprising process steps A. enzymatic conversion of acetyl-CoA into acetoacetyl-CoA B. enzymatic conversion of acetoacetyl-CoA into acetoacetate and CoA and C. decarboxylation of acetoacetate to acetone and CO2, which is characterized in that the coenzyme A is not transferred in process step B to an acceptor molecule. In addition, process step B is surprisingly catalyzed by enzymes of the classes of acyl-CoA thioesterase, acyl-CoA synthetase or acyl-CoA thiokinase. A completely novel metabolic pathway is concerned, because the enzymatic hydrolysis of acetoacetyl-CoA without simultaneous transfer of CoA to a receptor molecule has never previously been described for any microbial enzyme.Type: GrantFiled: October 1, 2008Date of Patent: March 24, 2015Assignee: Evonik Degussa GmbHInventors: Stefan Verseck, Steffen Schaffer, Werner Freitag, Friedrich-Georg Schmidt, Matthias Orschel, Gerda Grund, Wilfried Schmidt, Hubert Johannes Bahl, Ralf-Joerg Fischer, Antje May, Peter Duerre, Simone Lederle
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Publication number: 20150045585Abstract: A process for preparing isophorone (3,5,5-trimethyl-2-cyclohexen-1-one) is provided wherein distillation vapors from the work-up of product fractions are recycled to earlier stages of operation of the process.Type: ApplicationFiled: August 8, 2014Publication date: February 12, 2015Applicant: Evonik Industries AGInventors: Joerg-Joachim NITZ, Stephan KOHLSTRUK, Robert JANSEN, Matthias ORSCHEL, Andreas MERKEL, Michael DEMMING, Matthias MENDORF, Jens DOERING, Axel HENGSTERMANN, Andreas HOFF, Anja MUELLER
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Patent number: 8889914Abstract: The invention relates to a method for producing isophorone by catalyzed aldol condensation of acetone as an educt, reprocessing the reaction product, hydrolyzing the product stream, and separating into an organic and an aqueous fraction, obtaining isophorone from the organic fraction, distillatively reprocessing the aqueous fraction, and feeding the vapors from the head of the distillative reprocessing apparatus into the hydrolysis apparatus.Type: GrantFiled: November 17, 2011Date of Patent: November 18, 2014Assignee: Evonik Degussa GmbHInventors: Matthias Orschel, Robert Jansen, Martin Maier, Gerda Grund, Markus Schwarz, Joerg-Joachim Nitz, Axel Hengstermann
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Patent number: 8884066Abstract: The invention relates to a process for preparing isophorone (3,5,5-trimethyl-2-cyclohexen-1-one) in the presence of at least one defoamer in the wastewater column in the workup section.Type: GrantFiled: April 25, 2012Date of Patent: November 11, 2014Assignee: Evonik Degussa GmbHInventors: Matthias Orschel, Robert Jansen, Martin Maier, Joerg-Joachim Nitz, Markus Schwarz
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Patent number: 8877976Abstract: The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or IPDA for short, by means of catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminating hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, also called isophoronenitrile or IPN for short hereinafter.Type: GrantFiled: November 17, 2011Date of Patent: November 4, 2014Assignee: Evonik Degussa GmbHInventors: Christian Lettmann, Guido Streukens, Matthias Orschel, Gerda Grund
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Publication number: 20140107379Abstract: The invention relates to a process for preparing isophorone (3,5,5-trimethyl-2-cyclohexen-1-one) in the presence of at least one defoamer in the wastewater column in the workup section.Type: ApplicationFiled: April 25, 2012Publication date: April 17, 2014Applicant: Evonik Degussa GmbHInventors: Matthias Orschel, Robert Jansen, Martin Maier, Joerg-Joachim Nitz, Markus Schwarz
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Publication number: 20130261341Abstract: The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or IPDA for short, by means of catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminating hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, also called isophoronenitrile or IPN for short hereinafter.Type: ApplicationFiled: November 17, 2011Publication date: October 3, 2013Applicant: Evonik Degussa GmbHInventors: Christian Lettmann, Guido Streukens, Matthias Orschel, Gerda Grund
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Publication number: 20130261343Abstract: The invention relates to a method for producing isophorone by catalyzed aldol condensation of acetone as an educt, reprocessing the reaction product, hydrolyzing the product stream, and separating into an organic and an aqueous fraction, obtaining isophorone from the organic fraction, distillatively reprocessing the aqueous fraction, and feeding the vapors from the head of the distillative reprocessing apparatus into the hydrolysis apparatus.Type: ApplicationFiled: November 17, 2011Publication date: October 3, 2013Applicant: Evonik Degussa GmbHInventors: Matthias Orschel, Robert Jansen, Martin Maier, Gerda Grund, Markus Schwarz, Joerg-Joachim Nitz, Axel Hengstermann
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Publication number: 20130253226Abstract: The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or, in abbreviated form, IPDA, by: I. preparation of isophorone by catalyzed aldol condensations with acetone as reactant; II. reaction of isophorone with HCN to form isophoronenitrile (IPN, 3-cyano-3,5,5-trimethylcyclohexanone); III. catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminative hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, hereinafter called isophoronenitrile or, in abbreviated form, IPN, to give the isophoronediamine.Type: ApplicationFiled: November 18, 2011Publication date: September 26, 2013Applicant: Evonik Degussa GmbHInventors: Markus Galle, Gerda Grund, Axel Hengstermann, Michael D. Hinton, Rolf Hirsch, Robert Jansen, Cord Knoop, Christian Lettmann, Juergen Lippe, Martin Maier, Joerg-Joachim Nitz, Matthias Orschel, Martina Ortelt, Norbert Richter, Armin Rix, Markus Schwarz, Guido Streukens
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Publication number: 20120101304Abstract: The invention relates to cells and a method for producing acetone.Type: ApplicationFiled: February 23, 2010Publication date: April 26, 2012Applicant: Evonik Degussa GmbHInventors: Franz Ulrich Becker, Gerda Grund, Matthias Orschel, Kai Doderer, Gerd Löhden, Gerd Brand, Peter Dürre, Simone Thum, Hubert Johannes Bahl, Ralf-Jörg Fischer, Antje May
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Publication number: 20100261237Abstract: The invention describes a process for preparing acetone starting from acetyl-coenzyme A comprising process steps A. enzymatic conversion of acetyl-CoA into acetoacetyl-CoA B. enzymatic conversion of acetoacetyl-CoA into acetoacetate and CoA and C. decarboxylation of acetoacetate to acetone and CO2, which is characterized in that the coenzyme A is not transferred in process step B to an acceptor molecule. In addition, process step B is surprisingly catalysed by enzymes of the classes of acyl-CoA thioesterase, acyl-CoA synthetase or acyl-CoA thiokinase. A completely novel metabolic pathway is concerned, because the enzymatic hydrolysis of acetoacetyl-CoA without simultaneous transfer of CoA to a receptor molecule has never previously been described for any microbial enzyme.Type: ApplicationFiled: October 1, 2008Publication date: October 14, 2010Applicant: EVONIK DEGUSSA GmbhInventors: Stefan Verseck, Steffen Schaffer, Werner Freitag, Friedrich-Georg Schmidt, Matthias Orschel, Gerda Grund, Wilfried Schmidt, Hubert Johannes Bahl, Ralf-Joerg Fischer, Antje May, Peter Duerre, Simone Lederle
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Publication number: 20080045738Abstract: The invention relates to a one-stage or multistage process for preparing mono-, di- and/or polyamines from compounds having carbodiimide groups and optionally also other groups of isocyanate chemistry by hydrolysis with water.Type: ApplicationFiled: January 27, 2005Publication date: February 21, 2008Applicant: DEGUSSA AGInventors: Matthias Orschel, Rainer Lomolder, Stephan Kohlstruk
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Publication number: 20070179216Abstract: The invention relates to a novel process for preparing aqueous polyurethane dispersions from solvent-containing, aqueous polyurethane dispersions or solutions by means of flash evaporation of the organic solvents or organic solvent mixtures, and also to a process for preparing aqueous polyurethane dispersions by converting hydrophilically modified NCO prepolymers or polyurethanes in an optionally aqueous, organic solvent or solvent mixture to an aqueous dispersion or aqueous solution and subsequently removing the organic solvent or solvent mixture.Type: ApplicationFiled: May 2, 2005Publication date: August 2, 2007Applicant: DEGUSSA AGInventors: Matthias Orschel, Wolfgang Sasse
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Patent number: 7052914Abstract: The invention relates to an automated method for carrying out reactions with high spatial resolution on libraries of different materials and for analysis of the products obtained using a simple robot system and an analyzer, for example a mass spectrometer.Type: GrantFiled: October 29, 2001Date of Patent: May 30, 2006Assignee: hte Aktiengesellschaft the high throughput experimentation companyInventors: Wilhelm Maier, Matthias Orschel, Jens Klein, Christian Lettmann, Hans Werner Schmidt
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Publication number: 20020135753Abstract: The invention relates to an automated method for carrying out reactions with high spatial resolution on libraries of different materials and for analysis of the products obtained using a simple robot system and an analyzer, for example a mass spectrometer.Type: ApplicationFiled: October 29, 2001Publication date: September 26, 2002Inventors: Wilhelm Maier, Matthias Orschel, Jens Klein, Christian Lettmann, Hans Werner Schmidt