Patents by Inventor Dagmara Ortmann
Dagmara Ortmann 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: 8226829Abstract: Process for separating a dissolved complex catalyst of a metal of group 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements and/or any free organophosphorus ligand present from a nonaqueous hydroformylation reaction mixture which contains an aldehyde product and an organic solvent at least one membrane which is more permeable to the hydroformylation product than to the organophosphorus ligand, the separation being carried out under a carbon monoxide partial vapor pressure of more than 200 kPa.Type: GrantFiled: September 8, 2006Date of Patent: July 24, 2012Assignee: Evonik Oxenc GmbHInventors: Klaus-Diether Wiese, Goetz Baumgarten, Franz-Felix Kuppinger, Oliver Moeller, Dagmara Ortmann, Cornelia Borgmann, Wilfried Bueschken
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Patent number: 8202959Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: April 27, 2011Date of Patent: June 19, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 8138293Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: May 11, 2007Date of Patent: March 20, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Publication number: 20110201767Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Applicant: Evonik Oxeno GmbHInventors: Michael Graß, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 7977520Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein the overall telomerization process has a process step of catalyst recycling, in which hydrogen is added via a hydrogen source to the mixture present in this process step.Type: GrantFiled: August 23, 2005Date of Patent: July 12, 2011Assignee: EVONIX OXENO GmbHInventors: Cornelia Borgmann, Dirk Roettger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Publication number: 20100197983Abstract: The invention relates to the preparation of one or more unbranched acyclic octatriene(s) by dimerization of 1,3-butadiene in the presence of a catalyst comprising a carbene ligand and an element of transition group VIII of the Periodic Table of the Elements as metal.Type: ApplicationFiled: October 20, 2005Publication date: August 5, 2010Applicant: OXENO OLEFINCHEMIE GMBHInventors: Matthias Beller, Ralf Jackstell, Surendra Harkal, Dagmara Ortmann, Franz Nierlich
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Patent number: 7767861Abstract: The present invention relates to a process for preparing organophosphites, organophosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may be used, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.Type: GrantFiled: October 29, 2004Date of Patent: August 3, 2010Assignee: Evonik Oxeno GmbHInventors: Dagmara Ortmann, Klaus-Diether Wiese, Oliver Moller, Dirk Fridag
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Patent number: 7645914Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein hydrogen is added via a hydrogen source to the process in at least one process step in the overall telomerization process.Type: GrantFiled: August 23, 2005Date of Patent: January 12, 2010Assignee: Evonik Oxeno GmbHInventors: Cornelia Borgmann, Dirk Roettger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Publication number: 20090203858Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: ApplicationFiled: May 11, 2007Publication date: August 13, 2009Applicant: EVONIK OXENO GMBHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Publication number: 20090054710Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein the overall telomerization process has a process step of catalyst recycling, in which hydrogen is added via a hydrogen source to the mixture present in this process step.Type: ApplicationFiled: August 23, 2005Publication date: February 26, 2009Applicant: OXENO OLEFINCHEMIE GMBHInventors: Cornelia Borgmann, Dirk Roettger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Patent number: 7495133Abstract: (EN) The invention relates to the use of novel organophosphoric compounds and metal complexes thereof in catalytic reactions, and to the hydroformylation of olefins in the presence of these compounds.Type: GrantFiled: January 27, 2005Date of Patent: February 24, 2009Assignee: Oxeno Olefinchemie GmbHInventors: Cornelia Borgmann, Detlef Selent, Armin Boerner, Klaus-Diether Wiese, Dagmara Ortmann, Oliver Moeller, Dieter Hess
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Patent number: 7495134Abstract: The invention relates to a process for reaction of a carbonylatable compound using a metal complex catalyst comprising a metal of transition group VIII and an organophosphorus ligand and in the presence of a stabilizer based on a sterically hindered secondary amine.Type: GrantFiled: June 2, 2006Date of Patent: February 24, 2009Assignee: Evonik Oxeno GmbHInventors: Dieter Hess, Dagmara Ortmann, Oliver Moeller, Klaus-Diether Wiese, Dirk Fridag, Wilfried Bueschken
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Publication number: 20090032465Abstract: Process for separating a metal complex catalyst from a reaction mixture obtained from a telomerization reaction, wherein the metal complex catalyst is separated off at least one membrane which is more permeable to the telomerization product than to the metal complex catalyst.Type: ApplicationFiled: December 7, 2006Publication date: February 5, 2009Applicant: Evonik Oxeno GmbHInventors: Goetz Baumgarten, Dagmara Ortmann, Franz-Felix Kuppinger, Cornelia Borgmann, Stephan Houbrechts
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Publication number: 20080251456Abstract: Process for separating a dissolved complex catalyst of a metal of group 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements and/or any free organophosphorus ligand present from a nonaqueous hydroformylation reaction mixture which contains an aldehyde product and an organic solvent at least one membrane which is more permeable to the hydroformylation product than to the organophosphorus ligand, the separation being carried out under a carbon monoxide partial vapor pressure of more than 200 kPa.Type: ApplicationFiled: September 8, 2006Publication date: October 16, 2008Applicant: Evonik Oxeno GmbHInventors: Klaus-Diether Wiese, Gotz Baumgarten, Franz-Felix Kuppinger, Oliver Moeller, Dagmara Ortmann, Cornelia Borgmann, Wilfried Buschken
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Publication number: 20080188686Abstract: The invention relates to a process for reaction of a carbonylatable compound using a metal complex catalyst comprising a metal of transition group VIII and an organophosphorus ligand and in the presence of a stabilizer based on a sterically hindered secondary amine.Type: ApplicationFiled: June 2, 2006Publication date: August 7, 2008Applicant: OXENO OLEFINCHEMIE GMBHInventors: Dieter Hess, Dagmara Ortmann, Oliver Moeller, Klaus-Diether Wiese, Dirk Fridag, Wilfried Buschken
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Patent number: 7345185Abstract: The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.Type: GrantFiled: October 27, 2004Date of Patent: March 18, 2008Assignee: OXENO Olefinchemie GmbHInventors: Dagmara Ortmann, Klaus-Diether Wiese, Oliver Moeller, Dirk Fridag
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Publication number: 20070282130Abstract: (EN) The invention relates to the use of novel organophosphoric compounds and metal complexes thereof in catalytic reactions, and to the hydroformylation of olefins in the presence of these compounds.Type: ApplicationFiled: January 27, 2005Publication date: December 6, 2007Applicant: Oxeno Olefinchemie GMBHInventors: Cornelia Borgmann, Detlef Selent, Armin Borner, Klaus-Diether Wiese, Dagmara Ortmann, Oliver Moller, Dieter Hess
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Publication number: 20070213574Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein hydrogen is added via a hydrogen source to the process in at least one process step in the overall telomerization process.Type: ApplicationFiled: August 23, 2005Publication date: September 13, 2007Inventors: Cornelia Borgmann, Dirk Rottger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Publication number: 20070117995Abstract: The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.Type: ApplicationFiled: October 27, 2004Publication date: May 24, 2007Applicant: OXENO OLEFINCHEMIE GMBHInventors: Dagmara Ortmann, Klaus-Diether Wiese, Oliver Moller, Dirk Fridag
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Publication number: 20070112219Abstract: The present invention relates to a process for preparing organophosphites, organophosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may be used, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.Type: ApplicationFiled: October 29, 2004Publication date: May 17, 2007Applicant: OXENO OLEFINCHEME GMBHInventors: Dagmara Ortmann, Klause-Diether Wiese, Oliver Moller, Dirk Fridag
