Patents by Inventor Thomas Ostrowski
Thomas Ostrowski 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: 9657137Abstract: The present invention relates to a process for preparing hydrophobically associating macromonomers M and to the novel macromonomers prepared by means of the process according to the invention. The macromonomers M comprise a copolymerizable, ethylenically unsaturated group and a polyether structure in block form, the latter consisting of a polyethyleneoxy block and a hydrophobic polyalkyleneoxy block consisting of alkyleneoxy units having at least 4 carbon atoms. Optionally, the macromonomers M may have a terminal polyethyleneoxy block. The macromonomers prepared by the process according to the invention are suitable for reaction with further monomers, especially with acrylamide, to give a water-soluble, hydrophobically associating copolymer.Type: GrantFiled: December 13, 2013Date of Patent: May 23, 2017Assignee: BASF SEInventors: Christian Bittner, Björn Langlotz, Benjamin Wenzke, Christian Spindler, Roland Reichenbach-Klinke, Markus Klumpe, Nicole Meier, Ulrich Annen, Thomas Ostrowski
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Publication number: 20150329669Abstract: The present invention relates to a process for preparing hydrophobically associating macromonomers M and to the novel macromonomers prepared by means of the process according to the invention. The macromonomers M comprise a copolymerizable, ethylenically unsaturated group and a polyether structure in block form, the latter consisting of a polyethyleneoxy block and a hydrophobic polyalkyleneoxy block consisting of alkyleneoxy units having at least 4 carbon atoms. Optionally, the macromonomers M may have a terminal polyethyleneoxy block. The macromonomers prepared by the process according to the invention are suitable for reaction with further monomers, especially with acrylamide, to give a water-soluble, hydrophobically associating copolymer.Type: ApplicationFiled: December 13, 2013Publication date: November 19, 2015Inventors: Christian BITTNER, Björn LANGLOTZ, Benjamin WENZKE, Christian SPINDLER, Roland REICHENBACH-KLINKE, Markus KLUMPE, Nicole MEIER, Ulrich ANNEN, Thomas OSTROWSKI
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Patent number: 9163103Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: July 3, 2014Date of Patent: October 20, 2015Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Patent number: 9073836Abstract: A process for preparing polyether alcohols by reacting one or more unsaturated starters having at least one active hydrogen atom per molecule with one or more alkylene oxides in the liquid phase in the presence of a basic catalyst in a reactor, wherein the one or more alkylene oxides are introduced into the reactor in such a way that the concentration of unreacted alkylene oxide in the liquid reaction mixture in the reactor is increased as far as possible with increasing degree of addition of the alkylene oxide onto the starter, with the proviso that the temperature at the end of a runaway reaction is at any point in time at least 100 K below the onset temperature of the decomposition reaction of the liquid reaction mixture, is proposed.Type: GrantFiled: August 3, 2011Date of Patent: July 7, 2015Assignee: BASF SEInventors: Markus Klumpe, Thomas Ostrowski, Matthias Zipplies
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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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Publication number: 20140316035Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: ApplicationFiled: July 3, 2014Publication date: October 23, 2014Applicant: BASF SEInventors: ROLAND REICHENBACH-KLINKE, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Patent number: 8783356Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: November 19, 2012Date of Patent: July 22, 2014Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Patent number: 8399608Abstract: A process for the preparation of polyether alcohols by reacting at least one alkylene oxide with at least one unsaturated starter having at least one active hydrogen atom per molecule under basic catalysis, that the alkoxylation is carried out in at least two stages, in stage (I) the alkoxylation of the starter or starters being carried out with not more than 10 mol of alkylene oxide per mole of starter with a catalyst concentration of not more than 0.0085 mol of basic catalyst per mole and in stage (II) and the optionally following stages, the alkoxylated starter or starters from stage (I) being reacted with further alkylene oxide at a catalyst concentration of at least 0.01 mol of basic catalyst per mole of starter.Type: GrantFiled: October 25, 2007Date of Patent: March 19, 2013Assignee: BASF AktiengesellschaftInventors: Georg Heinrich Grosch, Matthias Zipplies, Thomas Ostrowski, Ulrich Annen, Markus Klumpe
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Patent number: 8362180Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: May 20, 2010Date of Patent: January 29, 2013Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Markus Rösch, Björn Langlotz
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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: 8354356Abstract: The invention relates to a process for preparing DMC catalysts by reaction of cyanometalate compounds with metal salts, wherein the reaction is carried out in ionic liquids as solvents or suspension media.Type: GrantFiled: January 31, 2008Date of Patent: January 15, 2013Assignee: BASF SEInventors: Michael Triller, Matthias Schopohl, Veit Stegmann, Thomas Ostrowski
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Publication number: 20120130134Abstract: A process for the preparation of polyetherols, comprising the following steps: a) reaction of at least one starter compound with at least one alkylene oxide and a catalyst to give a crude polyetherol and b) removal of low molecular weight byproducts from the crude polyetherol from step a), wherein the crude polyetherol is treated with a stripping gas in a column having internals.Type: ApplicationFiled: July 27, 2010Publication date: May 24, 2012Applicant: BASF SEInventors: Matthias Schopohl, Thomas Ostrowski, Dirk Meckelnburg, Renata Jovanovic, Achim Loeffler, Hans-Juergen Pallasch, Thorsten Friese, Eckard Schauss, Susanne Szeschkus, Vinit Chilekar, Hans Volkmar Schwarz
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Publication number: 20120035381Abstract: A process for preparing polyether alcohols by reacting one or more unsaturated starters having at least one active hydrogen atom per molecule with one or more alkylene oxides in the liquid phase in the presence of a basic catalyst in a reactor, wherein the one or more alkylene oxides are introduced into the reactor in such a way that the concentration of unreacted alkylene oxide in the liquid reaction mixture in the reactor is increased as far as possible with increasing degree of addition of the alkylene oxide onto the starter, with the proviso that the temperature at the end of a runaway reaction is at any point in time at least 100 K below the onset temperature of the decomposition reaction of the liquid reaction mixture, is proposed.Type: ApplicationFiled: August 3, 2011Publication date: February 9, 2012Applicant: BASF SEInventors: Markus KLUMPE, Thomas Ostrowski, Matthias Zipplies
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Patent number: 8034980Abstract: A process for preparing polyether polyols by reaction of the following starting materials: a) one or more alkylene oxides and, if appropriate, carbon dioxide and also b) one or more H-functional starter substances, in the presence of a catalyst, in a reaction unit having a plurality of parallel layers A, B which are microstructured so that each layer has a multiplicity of channels which are arranged parallel to one another and form a continuous flow path from one side of the plate to the opposite side of this, wherein a distribution device for introduction of the starting materials and the catalyst is provided at one end of the channels of the layers A and a collection device for the reaction mixture is provided at the other end of these is proposed.Type: GrantFiled: May 22, 2007Date of Patent: October 11, 2011Assignee: BASF AktiengesellschaftInventors: Achim Loeffler, Wolfgang Loth, Ralf Boehling, Thomas Ostrowski, Michael Stoesser, Hartwig Voss, Axel Schimpf
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Publication number: 20110224397Abstract: The present invention relates to a process for preparing polyetherols in the presence of basic catalysts, wherein propylene oxide (PO) and/or ethylene oxide (EO) whose summated contents of aldehydes, expressed by the contents determined by gas chromatography or titrimetrically using the bisulfite method and calculated for propionaldehyde, do not exceed the value of 300 ppm and of allyl alcohol determined by gas chromatography do not exceed the value of 2500 ppm and of water determined by Karl-Fischer titration do not exceed the value of 1700 ppm and of acid, expressed by the contents determined by acid-base titration and calculated for acetic acid, do not exceed the value of 100 ppm and of carbon dioxide determined by KOH titration do not exceed the value of 500 ppm are used.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: BASF SEInventors: Thomas OSTROWSKI, Anne-Kathrin Merten, Achim Löffler, Hermann Graf
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Patent number: 7968754Abstract: The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalysType: GrantFiled: November 6, 2004Date of Patent: June 28, 2011Assignee: BASF AktiengesellschaftInventors: Thomas Ostrowski, Raimund Ruppel, Eva Baum, Kathrin Harre
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Publication number: 20100331510Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: ApplicationFiled: May 20, 2010Publication date: December 30, 2010Applicant: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Markus Rösch, Björn Langlotz
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Publication number: 20100216968Abstract: A process for the preparation of polyether alcohols by reacting at least one alkylene oxide with at least one unsaturated starter having at least one active hydrogen atom per molecule under basic catalysis, that the alkoxylation is carried out in at least two stages, in stage (I) the alkoxylation of the starter or starters being carried out with not more than 10 mol of alkylene oxide per mole of starter with a catalyst concentration of not more than 0.0085 mol of basic catalyst per mole and in stage (II) and the optionally following stages, the alkoxylated starter or starters from stage (I) being reacted with further alkylene oxide at a catalyst concentration of at least 0.01 mol of basic catalyst per mole of starter.Type: ApplicationFiled: October 25, 2007Publication date: August 26, 2010Applicant: BASF SEInventors: Georg Heinrich Grosch, Matthias Zipplies, Thomas Ostrowski, Ulrich Annen, Markus Klumpe
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Patent number: 7750191Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.Type: GrantFiled: June 22, 2005Date of Patent: July 6, 2010Assignee: BASF AktiengesellschaftInventors: Thomas Ostrowski, Stephan Bauer, Achim Loeffler, Juergen Winkler
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Patent number: 7723465Abstract: The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession.Type: GrantFiled: July 11, 2006Date of Patent: May 25, 2010Assignee: BASF AktiengesellschaftInventors: Stephan Herwig, Thomas Ostrowski, Dirk Meckelnburg, Achim Loeffler, Renata Jovanovic, Werner Weinle