Patents by Inventor Andreas Brodhagen
Andreas Brodhagen 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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Publication number: 20200362070Abstract: The present disclosure relates to a process for the preparation of a polymer composition including at least one polymer and at least one polyether compound (PE). The polymer is obtained by radical polymerization of a monomer composition (M) including at least one olefinically unsaturated acid monomer and optionally further monomers such as a chain transfer agent. The radical polymerization is carried out in at least one reactor operated in batch or semibatch mode and in the presence of the polyether compound (PE). The reactor comprises a volume-based heat removal power (A) of at least 3 kW/(m3·K) and has a volume of at least 10 L.Type: ApplicationFiled: January 15, 2019Publication date: November 19, 2020Inventors: Stephan Salzinger, Andreas Brodhagen, Yannick Fuchs, Domink Lanzinger, Helmut Eitteler
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Publication number: 20160090447Abstract: A continuous process for the preparation of polyoxazolines comprises mixing monomers, an initiator, and optionally an additive, feeding the mixture into at least one tubular reactor segment with a feed side and an outlet side, and polymerizing the mixture to form the polyoxazolines. A tubular reactor segment comprises a mixer for forming a mixture comprising monomers, an initiator, an additive, a terminating agent, and/or a functionalizing agent, at least first and second tubular reactor segments, and addition devices for the first and second tubular reactor segments.Type: ApplicationFiled: May 6, 2014Publication date: March 31, 2016Inventors: Fatemeh Ahmadnian, Valeria Zakharova, Hans-Michael Walter, Andreas Brodhagen, Holger Türk
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Patent number: 9284395Abstract: The present invention relates to a process for the continuous preparation of polymers in a polymerization apparatus, where the starting materials comprise at least one olefinically unsaturated polyether macromonomer and at least one olefinically unsaturated acid monomer and at least one free-radical initiator and the polymerization is carried out at temperatures in the range from ?20 to +120° C., wherein the polymerization apparatus comprises at least one loop reactor which has at least one feed line for the starting materials and at least one outlet, where the loop reactor comprises at least one reaction zone which comprises internal cooling and mixing elements and which has a volume-based heat removal power of at least 10 kW/m3·K. Furthermore, the use of the polymer of the invention as dispersant for hydraulic binders is disclosed.Type: GrantFiled: December 9, 2013Date of Patent: March 15, 2016Assignee: Construction Research & Technology GmbHInventors: Christian Schwede, Günter Kaiser, Andreas Brodhagen, Mario Vierle
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Publication number: 20150315318Abstract: The present invention relates to a process for the continuous preparation of polymers in a polymerization apparatus, where the starting materials comprise at least one olefinically unsaturated polyether macromonomer and at least one olefinically unsaturated acid monomer and at least one free-radical initiator and the polymerization is carried out at temperatures in the range from ?20 to +120° C., wherein the polymerization apparatus comprises at least one loop reactor which has at least one feed line for the starting materials and at least one outlet, where the loop reactor comprises at least one reaction zone which comprises internal cooling and mixing elements and which has a volume-based heat removal power of at least 10 kW/m3·K. Furthermore, the use of the polymer of the invention as dispersant for hydraulic binders is disclosed.Type: ApplicationFiled: December 9, 2013Publication date: November 5, 2015Inventors: Christian SCHWEDE, Günter KAISER, Andreas BRODHAGEN, Mario VIERLE
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Patent number: 9132387Abstract: The invention relates to a process for working-up a reaction mixture (5) comprising polyetherol and dissolved alkali metal comprising catalyst, wherein at least alkali metal ions of the dissolved alkali metal comprising catalyst are partially or completely removed from the mixture by a membrane separation process, the process comprising following steps: (a) feeding the reaction mixture (5) comprising polyetherol and dissolved alkali metal comprising catalyst into a first chamber (1) of a separation unit (3), (b) feeding a solvent into a second chamber (7) of the separation unit (3), the first chamber (1) and the second chamber (7) being separated by a membrane (9), (c) transporting at least the alkali metal ions of the alkali metal comprising catalyst from the first chamber (1) into the second chamber by passing through the membrane (9).Type: GrantFiled: December 12, 2012Date of Patent: September 15, 2015Assignee: BASF SEInventors: Vinit Chilekar, Hartwig Voss, Jelan Kuhn, Ann De Colvenaer, Andreas Brodhagen
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Patent number: 8957257Abstract: A process for a continuous production of a polyetherol first involves reacting a catalyst (5) with an alcohol starter (3) or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.Type: GrantFiled: July 18, 2012Date of Patent: February 17, 2015Assignee: BASF SEInventors: Vinit Chilekar, Oliver Bey, Andreas Brodhagen, Achim Loffler, Fatemeh Admadnian, Ralf Bohling, Christoph Grossmann, Ulrich Kammel, Ronald Adelmann, Thomas Ostrowski, Milind Joshi, Gerrit Waters, Dirk Meckelnburg
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Patent number: 8546606Abstract: The invention relates to a process for preparing polyisocyanates by reacting primary amines with phosgene, which comprises the steps a) mixing the amine with the phosgene, b) reacting the amine with the phosgene in a residence reactor and, if desired, c) transferring the output from the reactor of step b) into a distillation column, wherein the residence reactor in step b) is configured as a tube reactor.Type: GrantFiled: February 20, 2004Date of Patent: October 1, 2013Assignee: BASF AktiengesellschaftInventors: Andreas Brodhagen, Martin Sohn, Filip Nevejans, Eckhard Stroefer, Andreas Woelfert, Steffen Oehlenschlaeger
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Publication number: 20130146537Abstract: The invention relates to a process for working-up a reaction mixture (5) comprising polyetherol and dissolved alkali metal comprising catalyst, wherein at least alkali metal ions of the dissolved alkali metal comprising catalyst are partially or completely removed from the mixture by a membrane separation process, the process comprising following steps: (a) feeding the reaction mixture (5) comprising polyetherol and dissolved alkali metal comprising catalyst into a first chamber (1) of a separation unit (3), (b) feeding a solvent into a second chamber (7) of the separation unit (3), the first chamber (1) and the second chamber (7) being separated by a membrane (9), (c) transporting at least the alkali metal ions of the alkali metal comprising catalyst from the first chamber (1) into the second chamber by passing through the membrane (9).Type: ApplicationFiled: December 12, 2012Publication date: June 13, 2013Inventors: Vinit CHILEKAR, Hartwig Voss, Jelan Kuhn, Ann De Colvenaer, Andreas Brodhagen
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Patent number: 8461285Abstract: The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m3.Type: GrantFiled: March 8, 2011Date of Patent: June 11, 2013Assignee: BASF SEInventors: Fatemeh Ahmadnian, Vinit Chilekar, Andreas Brodhagen, Achim Loeffler, Hermann Graf
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Patent number: 8362308Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.Type: GrantFiled: March 7, 2011Date of Patent: January 29, 2013Assignee: BASF SEInventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
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Publication number: 20130023700Abstract: A process for a continuous production of a polyetherol first involves reacting an alcohol with a starter or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.Type: ApplicationFiled: July 18, 2012Publication date: January 24, 2013Applicant: BASF SEInventors: Vinit Chilekar, Oliver Bey, Andreas Brodhagen, Achim Löffler, Fatemeh Ahmadnian, Ralf Böhling, Christoph Grossmann, Ulrich Kammel, Ronald Adelmann, Thomas Ostrowski, Milind Joshi, Gerrit Waters, Dirk Meckelnburg
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Patent number: 8211987Abstract: The present invention relates to a method for reducing residual volatiles from polymer compositions.Type: GrantFiled: April 12, 2011Date of Patent: July 3, 2012Assignee: BASF SEInventors: Fatemeh Ahmadnian, Wolfgang Loth, Karl-Heinz Wassmer, Andreas Brodhagen, Gerd Konrad
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Publication number: 20110251345Abstract: The present invention relates to a method for reducing residual volatiles from polymer compositions.Type: ApplicationFiled: April 12, 2011Publication date: October 13, 2011Applicant: BASF SEInventors: Fatemeh AHMADNIAN, Wolfgang LOTH, Karl-Heinz WASSMER, Andreas BRODHAGEN, Gerd KONRAD
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Publication number: 20110224396Abstract: The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m3.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: BASF SEInventors: Fatemeh AHMADNIAN, Vinit Chilekar, Andreas Brodhagen, Achim Löffler, Hermann Graf
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Publication number: 20110160504Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.Type: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Applicant: BASF SEInventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
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Patent number: 7923588Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.Type: GrantFiled: October 13, 2005Date of Patent: April 12, 2011Assignee: BASF SEInventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
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Patent number: 7851648Abstract: The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.Type: GrantFiled: December 13, 2003Date of Patent: December 14, 2010Assignee: BASF AktiengesellschaftInventors: Martin Sohn, Eckhard Stroefer, Filip Nevejans, Ulrich Penzel, Hans-Juergen Pallasch, Rene Leuthold, Andreas Brodhagen, Andreas Woelfert, Wolfgang Mackenroth, Markus Maurer
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Patent number: 7754647Abstract: The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.Type: GrantFiled: April 4, 2008Date of Patent: July 13, 2010Assignee: Basf AktiengesellschaftInventors: Markus Schubert, Michael Hesse, Juergen Stephan, Volker Boehm, Andreas Brodhagen, Frank Poplow, Martina Sinner-Lang, Uwe Diehlmann, Gerhard Cox, Jochen Pfeifer
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Patent number: 7671229Abstract: A process is described for hydrocyanating 1,3-butadiene over at least one nickel(0) complex having phosphorus ligands as a catalyst, wherein the 1,3-butadiene is used in a mixture with n-butane and the mixture contains from 60 to 90% by volume of 1,3-butadiene and from 40 to 10% by volume of n-butane.Type: GrantFiled: January 27, 2005Date of Patent: March 2, 2010Assignee: BASF SEInventors: Michael Bartsch, Robert Baumann, Gerd Haderlein, Götz-Peter Schindler, Tim Jungkamp, Hermann Luyken, Jens Scheidel, Andreas Brodhagen
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Patent number: 7518024Abstract: A process for preparing 1-butene from 1-butane, which includes providing a n-butane-containing feed gas stream; introducing of the n-butane-containing feed gas stream into at least one dehydrogenation zone and nonoxidative catalytic dehydrogenation of n-butane; removing hydrogen, the low-boiling secondary constituents and optionally water vapor to give a C4 product gas stream containing 10-80% by volume of n-butane, 5-40% by volume of 1-butene, 10-50% by volume of 2-butene, 0-40% by volume of butadiene and 0-10% by volume of further gas constituents; introducing the C4 product gas stream containing 10-80% by volume of n-butane, 10-60% by volume of 1-butene, 15-60% by volume of 2-butene, 0-5% by volume of butadiene and 0-10% by volume of further gas constituents, into a selective hydrogenation zone and selective hydrogenation of butadiene to 1- and/or 2-butene to give stream consisting essentially of n-butane, 1-butene and 2-butene; and separating of the stream distillation into a desired product.Type: GrantFiled: October 27, 2004Date of Patent: April 14, 2009Assignee: BASF AktiengesellschaftInventors: Götz-Peter Schindler, Andreas Brodhagen, Thorsten Johann, Thomas Hill