Patents by Inventor Eva Baum
Eva Baum 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: 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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Patent number: 7504543Abstract: The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.Type: GrantFiled: March 17, 2005Date of Patent: March 17, 2009Assignee: BASF AktiengesellschaftInventors: Raimund Ruppel, Eva Baum, Thomas Ostrowski, Kathrin Harre, Elke Bleuel
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Publication number: 20080292526Abstract: Process for preparing double metal cyanide catalysts of the general formula (I) M2a[M1(CN)rXt]b ??(I) where M2 is preferably Co(III) or Fe(III), and M1 is preferably Zn(II), X is a group other than cyanide which forms a coordinate bond to M1 and is selected from the group consisting of carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl, a, b, r, t are integers which are selected so that the compound is electrically neutral, by reacting a) a cyanometallic acid of the general formula (II) Hw[M1(CN)r(X)t] where M1 and X are as defined above, r and t are as defined above and w is selected so that the compound is electrically neutral, with b) a readily protolyzable metal compound (IIIa) M2Rw and/or (IIIb) M2RuYv, where M2 is as defined above, the groups R are identical or different and are each the anion of a very weak protic acid having a pKa of ?20, and Y is the anion of an inorganic mineral acid or a moderately strong to strong organic acid having a pKa of from ?10 to +10, w corresponType: ApplicationFiled: May 2, 2006Publication date: November 27, 2008Applicant: BASF AktiengesellschaftInventors: Edward Bohres, Michael Stosser, Ludwig Volkel, Raimund Ruppel, Eva Baum, Norbert Wagner, Jorg Sundermeyer, Udo Garrelts, Michael Zirnstein
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Patent number: 7342140Abstract: The present invention relates to a process for preparing a polyetherol which comprises reacting at least one alkylene oxide with at least one starter compound in the presence of a catalyst of the formula I: M1p[M2qOn(OH)2(3-n)]x,??(I) and to the polyetherols prepared by such a process and to their use for the synthesis of polyurethanes, as fuel additive or as surfactant.Type: GrantFiled: September 11, 2003Date of Patent: March 11, 2008Assignee: BASF AktiengesellschaftInventors: Edward Bohres, Hartmut Hibst, Michael Stoesser, Raimund Ruppel, Eva Baum
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Patent number: 7279517Abstract: The present invention relates to a process for the alkoxylation of organic compounds comprising the reaction of at least one organic compound with at least one alkoxylating agent in the presence of a catalyst system, wherein a polyether alcohol is obtained. The catalyst system comprises a metallo organic framework mate-rial comprising pores and at least one metal ion and at least one at least bidentate organic compound, which is coordinately bounded to said metal ion. Furthermore it relates to polyurethanes or polyurethane foams, which are obtainable by using a prepared polyether alcohol as a starting material.Type: GrantFiled: October 18, 2002Date of Patent: October 9, 2007Assignees: BASF Aktiengesellschaft, University of MichiganInventors: Ulrich Mueller, Michael Stoesser, Raimund Ruppel, Eva Baum, Edward Bohres, Marcus Sigl, Lisa Lobree, Omar M. Yaghi, Mohamed Eddaoudi
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Publication number: 20070173628Abstract: The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.Type: ApplicationFiled: March 17, 2005Publication date: July 26, 2007Inventors: Raimund Ruppel, Eva Baum, Thomas Ostrowski, Kathrin Harre, Elke Bleuel
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Patent number: 7241926Abstract: A process for preparing polyether alcohols by addition of alkylene oxides onto H-functional starter substances in the presence of multimetal cyanide catalysts, wherein the multimetal cyanide catalysts are microporous and have a specific surface area of more than 100 m2/g, determined by nitrogen adsorption at 77 K.Type: GrantFiled: November 8, 2002Date of Patent: July 10, 2007Assignee: BASF AktiengesellschaftInventors: Edward Bohres, Ulrich Müller, Raimund Ruppel, Eva Baum
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Publication number: 20070129577Abstract: 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 catalystType: ApplicationFiled: November 6, 2004Publication date: June 7, 2007Applicant: BASF AKtiengesellschaftInventors: Thomas Ostrowski, Raimund Ruppel, Eva Baum, Katherine Harre
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Patent number: 7186867Abstract: Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).Type: GrantFiled: April 21, 2004Date of Patent: March 6, 2007Assignee: BASF AktiengesellschaftInventors: Thomas Ostrowski, Raimund Ruppel, Gerd Höppner, Sascha Bergmann, Koenraad Vandewalle, Eva Baum
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Publication number: 20060223979Abstract: A process for preparing polyether polyols comprises A) preparing a polyether polyol precursor, B) preparing a suspension of a DMC catalyst in a polyol, C) activating the DMC catalyst by bringing it into contact with an alkylene oxide, giving an activated DMC catalyst suspension, D) adding the activated DMC catalyst suspension from step C) to the polyether polyol precursor, E) reacting the polyether polyol precursor with alkylene oxide and, if appropriate, an H-functional starter substance in the presence of the activated DMC catalyst.Type: ApplicationFiled: April 4, 2005Publication date: October 5, 2006Inventors: Thomas Ostrowski, Raimund Ruppel, Eva Baum
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Publication number: 20060167125Abstract: The present invention provides a process for producing low-emission flexible polyurethane foams having a reduced odor and reduced fogging by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, c) blowing agents wherein polyether alcohols which have been prepared by addition of alkylene oxides onto compounds derived from renewable raw materials using DMC catalysts are used as compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups.Type: ApplicationFiled: July 24, 2003Publication date: July 27, 2006Applicant: BASF AktiengesellschaftInventors: Stephan Bauer, Raimund Ruppel, Eva Baum, Jurgen Winkler
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Patent number: 7015364Abstract: A process for preparing polyether polyols includes a precipitation step, a recrystallization step, and a reaction step. In the precipitation step, a multimetal cyanide compound is precipitated by reaction of a metal salt with a cyanometalate compound. In the recrystallization step, the multimetal cyanide compound precipitated above is recrystallized by adding further metal salt and/or further cyanometalate compound. The recrystallization forms a multimetal cyanide catalyst compound. In the reaction step, an initiator and one or more alkylene oxide are reacted in the presence of the multimetal cyanide catalyst compound.Type: GrantFiled: December 22, 2003Date of Patent: March 21, 2006Assignee: BASF AktiengesellschaftInventors: Georg Heinrich Grosch, Dirk Franke, Manfred Munzinger, Kathrin Harre, Eva Baum, Michael Stösser
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Publication number: 20050245770Abstract: The present invention relates to a process for preparing a polyetherol which comprises reacting at least one alkylene oxide with at least one starter compound in the presence of a catalyst of the formula I: M1p[M2qOn(OH)2(3?n)]x??(I), and to the polyetherols prepared by such a process and to their use for the synthesis of polyurethanes, as fuel additive or as surfactant.Type: ApplicationFiled: September 11, 2003Publication date: November 3, 2005Applicant: BASF AktiengesellschaftInventors: Edward Bohres, Hartmut Hibst, Michael Stober, Raimund Ruppel, Eva Baum
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Publication number: 20050240063Abstract: Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).Type: ApplicationFiled: April 21, 2004Publication date: October 27, 2005Inventors: Thomas Ostrowski, Raimund Ruppel, Gerd Hoppner, Sascha Bergmann, Koenraad Vandewalle, Eva Baum
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Publication number: 20050203274Abstract: The invention relates to a process for preparing polyether alcohols by addition of alkylene oxides onto H-functional starter substances using multimetal cyanide compounds as catalysts, wherein the multimetal cyanide compound is prepared by a process comprising the steps: a) adding a metal salt solution to a cyanometalate solution at a specific stirring power ? in the range from 0.05 to 10 W/l, preferably from 0.4 to 4 W/l, a temperature in the range from 0° C. to 100° C., preferably from 20° C. to 60° C., and an addition time of from 5 to 120 minutes, b) reducing the specific stirring power ? to a value in the range from 0.03 to 0.8 W/l and at the same time adding a surface-active agent, c) heating the solution while stirring at a specific stirring power ? of from 0.03 to 0.8 W/l, to a temperature of not more than 100° C., preferably in the range from 55° C. to 75° C., d) adding further metal salt solution while stirring at a specific stirring power ? of from 0.03 to 0.Type: ApplicationFiled: June 18, 2003Publication date: September 15, 2005Applicant: BASF AktiengesellschaftInventors: Edward Bohres, Dirk Franke, Michael Stosser, Raimund Ruppel, Eva Baum, Kathrin Harre
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Publication number: 20050177005Abstract: The invention relates to a method for producing polyether alcohols, comprising the following steps: a) reacting a low-molecular alcohol with alkylene oxide in the presence of a basic catalyst in order to form an alkylene oxide addition product having a molecular weight ranging from 200 to 900 g/mol; b) separating the basic catalyst from the product obtained in step a), and; c) reacting the product obtained in step b) with another alkylene oxide in order to produce the desired final product while using at least one DMC catalyst. The inventive method is characterized in that sodium hydroxide is used as the basic catalyst in step a).Type: ApplicationFiled: June 6, 2003Publication date: August 11, 2005Applicant: BASF AKTIENGESELLSCHAFTInventors: Raimund Ruppel, Eva Baum, Jurgen Winkler, Edward Bohres
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Patent number: 6906110Abstract: In a process for producing polyurethanes by reacting at least one polyisocyanate with at least one compound containing at least two hydrogen atoms which are reactive toward isocyanate groups, the compound having at least two active hydrogen atoms which is used is at least one polyether alcohol prepared by addition of alkylene oxides onto H-functional initiator substances by means of multimetal cyanide catalysis and the reaction is carried out in the presence of at least one metal salt.Type: GrantFiled: November 4, 2000Date of Patent: June 14, 2005Assignee: BASF AktiengesellschaftInventors: Reinhard Lorenz, Stephan Bauer, Dieter Junge, Eva Baum, Kathrin Harre, Jörg Erbes, Thomas Ostrowski, Georg Heinrich Grosch
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Publication number: 20050107643Abstract: 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 3 000 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: ApplicationFiled: November 13, 2003Publication date: May 19, 2005Inventors: Thomas Ostrowski, Raimund Ruppel, Eva Baum, Kathrin Harre
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Publication number: 20050004343Abstract: Catalyst suspensions for the ring-opening polymerization of alkylene oxides comprise a) at least one multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the multimetal cyanide compound, and b) at least one organic complexing agent c) water and/or d) at least one polyether and/or e) at least one surface-active substance, with the proviso that at least component a) and at least two of the components b) to e) have to be present.Type: ApplicationFiled: July 23, 2004Publication date: January 6, 2005Inventors: Georg Grosch, Kathrin Harre, Jorg Erbes, Reinhard Lorenz, Stephan Bauer, Thomas Ostrowski, Eva Baum, Dieter Junge, Edward Dexheimer
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Publication number: 20040249221Abstract: A process for preparing polyether alcohols by addition of alkylene oxides onto H-functional starter substances in the presence of multimetal cyanide catalysts, wherein the multimetal cyanide catalysts are microporous and have a specific surface area of more than 100 m2/g, determined by nitrogen adsorption at 77K.Type: ApplicationFiled: April 23, 2004Publication date: December 9, 2004Inventors: Edward Bohres, Ulrich Muller, Raimund Ruppel, Eva Baum