Patents by Inventor Ernst Muller
Ernst Muller 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: 9260562Abstract: The invention relates to a process for the preparation of polycarbonate polyols, characterized in that cyclic carbonates are polymerized in the presence of DMC catalysts and chain-transfer agents consisting of polyether carbonate polyols.Type: GrantFiled: November 3, 2011Date of Patent: February 16, 2016Assignee: BAYER INTELLECTUAL PROPERTY GMBHInventors: Thomas Ernst Müller, Christoph Gürtler, Anthony Kermagoret, Yvonne Dienes, Igor Busygin, Burkhard Köhler, Walter Leitner, Ganna Lyashenko
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Patent number: 9249259Abstract: 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: GrantFiled: July 17, 2012Date of Patent: February 2, 2016Assignee: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
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Patent number: 9228054Abstract: 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) catalyzer that was activated in the presence of cyclic anhydride.Type: GrantFiled: December 10, 2012Date of Patent: January 5, 2016Assignee: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Muhammad Afzal Subhani
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Publication number: 20150368396Abstract: The invention relates to a method for producing functionalized polyoxymethylene block copolymers comprising the step of polymerizing formaldehyde in a reaction vessel in the presence of a catalyst, the polymerization of formaldehyde in addition taking place in the presence of a starter compound comprising at least 2 Zerewitinoff active H atoms, to obtain an intermediate product. The intermediate product obtained is subsequently reacted with a cyclic carboxylic acid ester or carbonic acid ester, thus obtaining a functionalized polyoxymethylene block copolymer. The invention further relates to functionalized polyoxymethylene block copolymers obtained by such a method and to the use of said copolymers.Type: ApplicationFiled: December 18, 2013Publication date: December 24, 2015Inventors: Thomas Ernst MÜLLER, Christoph GÜRTLER, Walter LEITNER, Henning VOGT, Gabor BARATH
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Patent number: 9200113Abstract: 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-polymerization of carbonyl carriers such as olefins or dienes, reaction with hydroxylamine and a subsequent selective catalytic hydrogenation.Type: GrantFiled: March 8, 2011Date of Patent: December 1, 2015Assignee: Covestro Deutschland AGInventors: Christoph Gürtler, Thomas Ernst Müller, Ewa Gebauer, Henning Vogt, Yevgen Berezhanskyy, Burkhard Köhler, Walter Leitner
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Publication number: 20150337070Abstract: The invention relates to a method for producing non-alternating formaldehyde/CO2 copolymers, said method comprising the step of reacting formaldehyde or a compound that releases formaldehyde with carbon dioxide in the presence of a catalyst system. Said method is characterised in that the catalyst system comprises a Lewis acid component and a basic component, the Lewis acid component being at least temporarily coordinatively unsaturated under reaction conditions and the basic component having a pKb value of >=0.Type: ApplicationFiled: December 17, 2013Publication date: November 26, 2015Applicant: Bayer MaterialScience AGInventors: Thomas Ernst MÜLLER, Christoph GÜRTLER, Henning VOGT, Mario KRAUTSCHICK, Walter LEITNER
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Publication number: 20150322213Abstract: The invention relates to a method for producing NCO-modified polyoxymethylene block copolymers comprising the step of polymerizing formaldehyde in a reaction vessel in the presence of a catalyst, the polymerization of formaldehyde in addition taking place in the presence of a starter compound comprising at least 2 Zerewitinoff active H atoms to obtain an intermediate product. The intermediate product obtained is reacted further with an isocyanate to obtain an NCO-modified polyoxymethylene block copolymer. The invention also relates to NCO-modified polyoxymethylene block copolymers obtained by a method of this type and to the use of said copolymers for producing polyurethane polymers.Type: ApplicationFiled: December 16, 2013Publication date: November 12, 2015Inventors: Thomas Ernst MÜLLER, Christoph GÜRTLER, Walter LEITNER, Henning VOGT, Gabor BARATH
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Publication number: 20150259475Abstract: 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: ApplicationFiled: August 23, 2013Publication date: September 17, 2015Inventors: Thomas Ernst Müller, Christoph Gürtler, Jörg Hofmann, Matthias Wohak, Stefanie Braun, Aurel Wolf, Ilja Peckermann
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Patent number: 9120894Abstract: 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 isType: GrantFiled: July 17, 2012Date of Patent: September 1, 2015Assignee: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
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Publication number: 20150225503Abstract: 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: ApplicationFiled: August 23, 2013Publication date: August 13, 2015Inventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Walter Leitner, Ilja Peckermann, Aurel Wolf
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Patent number: 8987446Abstract: 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: GrantFiled: December 9, 2010Date of Patent: March 24, 2015Assignee: Bayer Intellectual Property GmbHInventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Johann Rechner, Friedhelm Risse, Angelina Prokofieva, Franco Doro, Burkhard Köhler, Walter Leitner, Aurel Wolf
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Publication number: 20140329987Abstract: 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: ApplicationFiled: December 10, 2012Publication date: November 6, 2014Inventors: Christoph Gürtler, Thomas Ernst Müller, Anthony Kermagoret, Yvonne Dienes, Julien Barruet, Aurel Wolf, Stefan Grasser
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Publication number: 20140323670Abstract: 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: ApplicationFiled: December 10, 2012Publication date: October 30, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Muhammad Afral Subhani
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Publication number: 20140275371Abstract: 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: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Walter Leitner, Henning Vogt, Saeeda Soomro
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Publication number: 20140275475Abstract: 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: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Walter Leitner, Henning Vogt, Saeeda Soomro
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Publication number: 20140228537Abstract: 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: ApplicationFiled: July 17, 2012Publication date: August 14, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
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Publication number: 20140221602Abstract: 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: ApplicationFiled: July 16, 2012Publication date: August 7, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Yvonne Dienes, Julien Barruet, Burkhard Köhler, Walter Leitner
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Publication number: 20140155559Abstract: 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 isType: ApplicationFiled: July 17, 2012Publication date: June 5, 2014Applicant: Bayer Intellecutall Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Matthias Wohak, Jörg Hofmann, Muhammad Afzal Subhani, Maurice Cosemans, Walter Leitner
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Publication number: 20140018517Abstract: 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: ApplicationFiled: November 3, 2011Publication date: January 16, 2014Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Igor Busygin, Thomas Ernst Müller, Christoph Gürtler, Anthony Kermagoret, Yvonne Dienes, Igor Busygin, Burkhard Köhler, Walter Leitner
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Publication number: 20130296450Abstract: 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: ApplicationFiled: December 12, 2011Publication date: November 7, 2013Applicant: Bayer Intellectual Property GmbHInventors: Jörg Hofmann, Christoph Gürtler, Hartmut Nefzger, Norbert Hahn, Klaus Lorenz, Thomas Ernst Müller