Patents by Inventor Thomas Ernst Müller

Thomas Ernst Müller 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).

  • Publication number: 20150291726
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds, comprising the step of slowly reacting an isocyanate compound with an epoxide compound in the presence of a Lewis acid catalyst. The invention further relates to an oxazolidinone compound, obtainable by a method according to the invention, with a colour as determined according to ASTM D1209-05 (2011) of ?200 and a molar ratio of the oxazolidinone compound to isocyanurate by-product o/i of ?85/15. Lastly, the invention relates to an oligomeric or polymeric oxazolidinone compound, obtainable by a method according to the invention using an isocyanate compound with two or more NCO groups per molecule and an epoxide compound with two or more epoxy groups per molecule, comprising at least two units derived from the isocyanate compound and at least two units derived from the epoxide compound, with a colour as determined according to ASTM D1209-05 (2011) of ?200.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 15, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Ernst Mueller, Christoph Guertler, Susmit Basu, Walter Leitner
  • Publication number: 20150259475
    Abstract: The invention relates to a method for producing polyether carbonate polyols by attaching alkylene oxides and carbon dioxide to one or more H-functional starters in the presence of a double-metal cyanide catalyst, characterized in that (alpha) a suspending agent which contains no H-functional groups is provided in a reactor, (ss) optionally, a moiety of alkylene oxide is added to the mixture from step (alpha) at temperatures of 90 to 150 DEG C., and the addition of the alkylene oxide compound is then interrupted; and (gamma) one or more H-functional starters are continuously metered into the reactor during the reaction.
    Type: Application
    Filed: August 23, 2013
    Publication date: September 17, 2015
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Jörg Hofmann, Matthias Wohak, Stefanie Braun, Aurel Wolf, Ilja Peckermann
  • Patent number: 9120894
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, wherein (?) the H-functional starter substance or a mixture of at least two H-functional starter substances is initially introduced into the reaction vessel, (?) for the activation, a part amount (based on the total amount of the amount of alkylene oxides employed in steps (?) and (?)) of one or more alkylene oxides is added to the mixture resulting from step (?), it also being possible for step (?) to be carried out several times for the activation, (?) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (?) (“copolymerization”), the alkylene oxides employed for the copolymerization being identical to or different from the alkylene oxides employed in step (?), characterized in that in step (?) the carbon dioxide is
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: September 1, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
  • Publication number: 20150225503
    Abstract: The invention relates to a method for producing polyether carbonate polyols by attaching alkylene oxides and carbon dioxide to one or more H-functional starters in the presence of a double-metal cyanide catalyst, characterized in that (alpha) a suspending agent which contains no H-functional groups and is selected from among one or more compounds from the group consisting of aliphatic lactones, aromatic lactones, lactides, cyclic carbonates comprising at least three optionally substituted methylene groups between the oxygen atoms of the carbonate group, aliphatic cyclic anhydrides, and aromatic cyclic anhydrides, is provided in a reactor; (ss) optionally, a moiety of alkylene oxide is added to the mixture from step (alpha) at temperatures of 90 to 150 DEG C, and the addition of the alkylene oxide compound is then interrupted; and (gamma) one or more H-functional starters are continuously metered into the reactor during the reaction.
    Type: Application
    Filed: August 23, 2013
    Publication date: August 13, 2015
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Walter Leitner, Ilja Peckermann, Aurel Wolf
  • Publication number: 20150203467
    Abstract: The present invention relates to a method for producing linear and/or cyclic carbonate esters, involving the step of reacting an epoxide with carbon dioxide in the presence of a catalyser. The invention further relates to the use of special catalysers for reacting epoxides with carbon dioxide, special catalysers and special reaction products. The catalyser comprises a complex of a metal M or M-A with a ligand L, the metal M being present in an oxidation state of >=0, A standing for halide, carboxylate, phenolate, sulfonate, phosphonate, alkyl, alkoxy or amido, and the ligand L having the subsequent structure (Ia) or (Ib), wherein one or both of the OH groups shown in (Ia) and/or (Ib) can also be deprotonated.
    Type: Application
    Filed: August 19, 2013
    Publication date: July 23, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Ernst Müeller, Christoph Gürtler, Sait Elmas, Burkhard Köhler, Waltre Leitner, Markus Harrer, Jörg Sundermeyer
  • Patent number: 8987446
    Abstract: The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous conjugated system. The invention further relates to the use of these bimetallic complexes as catalysts for the oxidative carbonylation of aromatic hydroxy compounds to form diaryl carbonates, a process for preparing diaryl carbonates using the bimetallic complex as catalyst and also diaryl carbonates prepared by oxidative carbonylation of aromatic hydroxy compounds using the bimetallic complexes of the invention as catalysts.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: March 24, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Johann Rechner, Friedhelm Risse, Angelina Prokofieva, Franco Doro, Burkhard Köhler, Walter Leitner, Aurel Wolf
  • Publication number: 20140329987
    Abstract: The present invention relates to a method for producing polyetherester carbonate polyols by means of catalytic addition of carbon dioxide, alkylene oxides and cyclic anhydrides to H-functional starter compounds in the presence of double metal cyanide (DMC) catalysts.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 6, 2014
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Anthony Kermagoret, Yvonne Dienes, Julien Barruet, Aurel Wolf, Stefan Grasser
  • Publication number: 20140323670
    Abstract: The present invention relates to a method for producing polyether carbonate polyols by way of the catalytic addition of carbon dioxide and alkylene oxides to H-functional starter compounds in the presence of double metal cyanide (DMC) catalyser that was activated in the presence of cyclic anhydride.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 30, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Muhammad Afral Subhani
  • Publication number: 20140275371
    Abstract: The present invention relates to a process for preparing olefin-CO terpolymers with the steps of: providing a reactor; charging the reactor with a first, gaseous olefin and with CO, such that there is a first pressure p1 in the reactor; reacting the first olefin with CO in the presence of a catalyst in the reactor; wherein a second olefin is initially charged in the reactor and/or metered in during the reaction, prior to the reaction either no CO is present in the reactor or the volume ratio of first, gaseous olefin to CO is >60:40, and during the reaction the average over time of the volume ratio of gaseous olefin metered in to CO metered in is >60:40.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Walter Leitner, Henning Vogt, Saeeda Soomro
  • Publication number: 20140275475
    Abstract: A process for preparing olefin-CO copolymers with the steps of: providing a reactor; charging the reactor with a gaseous olefin and with CO, such that there is a first pressure p1 in the reactor; and reacting olefin with CO in the presence of a catalyst in the reactor. Prior to the reaction, either no CO is present in the reactor or the volume ratio of gaseous olefin to CO is ?90:10. During the reaction, gaseous olefin and CO are metered in at least intermittently, with an average over time of the volume ratio of the olefin metered into CO metered in of ?90:10.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Walter Leitner, Henning Vogt, Saeeda Soomro
  • Publication number: 20140249289
    Abstract: The invention relates to a method for producing light-coloured polyisocyanates by phosgenation of mixtures comprising MDA and polycyclic aromatic polyamines that have o-phenylenediamine units incorporated via methylene bridges. The invention further relates to the polyisocyanate mixtures obtainable by this method.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 4, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Mueller, Christoph Guertler, Axel Scherer-Werke, Stefan Werschofen, Henning Vogt, Walter Leitner
  • Publication number: 20140228537
    Abstract: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts and to a process for the preparation of polyethercarbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that (?) (?1) the DMC catalyst and one or more H-functional starter compounds are placed in a reactor, (?2) an inert gas, an inert gas/carbon dioxide mixture or carbon dioxide is passed through the reactor at a temperature of 50 to 200° C. and at the same time a reduced pressure (absolute) of 10 mbar to 800 mbar is established in the reactor by removal of the inert gas or carbon dioxide, (?) under an atmosphere of inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, alkylene oxide is added to the mixture from step (?) at temperatures of 50 to 200° C.
    Type: Application
    Filed: July 17, 2012
    Publication date: August 14, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
  • Publication number: 20140221602
    Abstract: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts with heterocumulenes for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances, and to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that (?) under an inert gas atmosphere, under an atmosphere of an inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, at temperatures of from 90 to 150° C., the DMC catalyst is mixed with a heterocumulene and H-functional starter substance, (?) alkylene oxide is added at temperatures of from 100 to 150° C.
    Type: Application
    Filed: July 16, 2012
    Publication date: August 7, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Yvonne Dienes, Julien Barruet, Burkhard Köhler, Walter Leitner
  • Publication number: 20140155559
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, wherein (?) the H-functional starter substance or a mixture of at least two H-functional starter substances is initially introduced into the reaction vessel, (?) for the activation, a part amount (based on the total amount of the amount of alkylene oxides employed in steps (?) and (?)) of one or more alkylene oxides is added to the mixture resulting from step (?), it also being possible for step (?) to be carried out several times for the activation, (?) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (?) (“copolymerization”), the alkylene oxides employed for the copolymerization being identical to or different from the alkylene oxides employed in step (?), characterized in that in step (?) the carbon dioxide is
    Type: Application
    Filed: July 17, 2012
    Publication date: June 5, 2014
    Applicant: Bayer Intellecutall Property GmbH
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
  • Publication number: 20140018517
    Abstract: The invention relates to a process for the preparation of polycarbonate polyols, characterised in that cyclic carbonates are polymerised in the presence of DMC catalysts and chain-transfer agents consisting of polyether carbonate polyols.
    Type: Application
    Filed: November 3, 2011
    Publication date: January 16, 2014
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Igor Busygin, Thomas Ernst Müller, Christoph Gürtler, Anthony Kermagoret, Yvonne Dienes, Igor Busygin, Burkhard Köhler, Walter Leitner
  • Publication number: 20130296450
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols with primary hydroxyl end groups, comprising the steps of reaction of a starter compound containing active hydrogen atoms with an epoxide and carbon dioxide under double metal cyanide catalysis, reaction of the product obtained with a cyclic carboxylic acid anhydride and reaction of this product obtained with ethylene oxide in the presence of a catalyst which contains at least one nitrogen atom per molecule, excluding non-cyclic tertiary amines with identical substituents. The invention furthermore relates to polyether carbonate polyols obtainable by this process, compositions comprising these polyether carbonate polyols and polyurethane polymers based on these polyether carbonate polyols.
    Type: Application
    Filed: December 12, 2011
    Publication date: November 7, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Jörg Hofmann, Christoph Gürtler, Hartmut Nefzger, Norbert Hahn, Klaus Lorenz, Thomas Ernst Müller
  • Publication number: 20130072602
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances with the aid of double metal cyanide (DMC) catalysts and in the presence of additives A) chosen from the group consisting of sterically non-hindered phenols, catechols, pyrocatechols, thiazines, phenothiazines, thiazoles, benzothiazoles, oxazines, phenoxazines, 2,2,6,6-tetramethylpiperidine 1-oxyl and nitrostyrenes and optionally in the presence of metal salts B).
    Type: Application
    Filed: March 24, 2011
    Publication date: March 21, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Christoph Gürtler, Jörg Hofmann, Thomas Ernst Müller, Aurel Wolf, Stefan Grasser, Burkhard Köhler
  • Publication number: 20130066112
    Abstract: The invention relates to multi-amine functional oligomers and multi-oxime functional oligomers in addition to a method for producing the same by means of the co-polymerisation of carbonyl carriers such as olefins or dienes, reaction with hydroxylamine and a subsequent selective catalytic hydrogenation.
    Type: Application
    Filed: March 8, 2011
    Publication date: March 14, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Ewa Gebauer, Henning Vogt, Yevgen Berezhanskyy, Burkhard Köhler, Walter Leitner
  • Publication number: 20130018186
    Abstract: The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous conjugated system. The invention further relates to the use of these bimetallic complexes as catalysts for the oxidative carbonylation of aromatic hydroxy compounds to form diaryl carbonates, a process for preparing diaryl carbonates using the bimetallic complex as catalyst and also diaryl carbonates prepared by oxidative carbonylation of aromatic hydroxy compounds using the bimetallic complexes of the invention as catalysts.
    Type: Application
    Filed: December 9, 2010
    Publication date: January 17, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Johann Rechner, Friedhelm Risse, Angelina Prokofieva, Franco Doro, Burkhard Köhler, Walter Leitner, Aurel Wolf
  • Patent number: 8304509
    Abstract: The present invention relates to a process for continuously preparing diaryl carbonates from dialkyl carbonates and at least one monohydroxyl compound in the presence of catalysts, and to the use thereof for preparation of polycarbonates. The alkylene glycol obtained in the preparation of the dialkyl carbonate used is recycled by oxidative carbonylation with carbon monoxide in the presence of a catalyst to give the cyclic alkylene carbonate which is in turn converted to the dialkyl carbonate. More particularly, the process utilizes the alkylene glycol obtained for the diphenyl carbonate preparation process (DPC process).
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: November 6, 2012
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Friedhelm Risse, Johann Rechner, Franco Doro, Angelina Prokofieva