Patents by Inventor Ulrike Mahn
Ulrike Mahn 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: 9133093Abstract: The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.Type: GrantFiled: September 26, 2014Date of Patent: September 15, 2015Assignee: BASF SEInventors: Lionel Gehringer, Veronika Wloka, Ulrich Mueller, Marine Boudou, Ulrike Mahn, Elke Guetlich-Hauk
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Publication number: 20150011792Abstract: The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.Type: ApplicationFiled: September 26, 2014Publication date: January 8, 2015Applicant: BASF SEInventors: Lionel GEHRINGER, Veronika WLOKA, Ulrich MUELLER, Marine BOUDOU, Ulrike MAHN, Elke GUETLICH-HAUK
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Patent number: 8822589Abstract: Process for the preparation of aqueous formulations, wherein (A) at least one ethylenically unsaturated carboxylic acid, (B) at least one heterocyclic comonomer having at least one permanent cationic charge per molecule and (C-P1) at least one ethylenically unsaturated dicarboxylic acid or its anhydride are subjected to free radical copolymerization with one another in an aqueous medium and, shortly before the end or after the end of the copolymerization, further ethylenically unsaturated dicarboxylic acid (C-P2) or its anhydride is added.Type: GrantFiled: August 8, 2008Date of Patent: September 2, 2014Assignee: BASF SEInventors: Markus Brym, Stephan Hueffer, Audrey Renoncourt, Ulrike Mahn, Franz Glocknitzer, Alexandra Bruhn
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Patent number: 8771374Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: GrantFiled: May 24, 2012Date of Patent: July 8, 2014Assignee: BASF SEInventors: Markus Brym, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schocker, Hubertus Peter Bell, Peter Danisch
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Publication number: 20120227188Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicant: BASF SEInventors: MARKUS BRYM, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schöcker, Hubertus Peter Bell, Peter Danisch
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Publication number: 20120149862Abstract: The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.Type: ApplicationFiled: August 16, 2010Publication date: June 14, 2012Applicant: BASF SEInventors: Lionel Gehringer, Veronika Wloka, Ulrich Mueller, Marine Boudou, Ulrike Mahn, Elke Guetlich-Hauk
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Publication number: 20120059142Abstract: A process for preparing polyester alcohols by condensation of polytetrahydrofuran with aromatic dicarboxylic acids and/or their anhydrides and/or their esters, preferably isophthalic acid, phthalic acid and terephthalic acid and more preferably isophthalic acid, in the presence of a transesterification catalyst in a multi-stage operation at different pressure levels with at least one reaction stage at atmospheric pressure and at least one reaction stage at reduced pressure, where distillate is removed from the reaction system, comprises deactivating the catalyst after the polycondensation by using phosphoric acid in a molar ratio of 1:1 to 1:3.5 for catalyst to phosphoric acid.Type: ApplicationFiled: September 6, 2011Publication date: March 8, 2012Applicant: BASF SEInventors: Hermann Graf, Ulrike Mahn, Stefan Käshammer, Günter Scherr, Christian Nitschke
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Publication number: 20120059143Abstract: The subject of the present invention is a process for preparing polyester alcohols by condensation of polytetrahydrofuran with aromatic dicarboxylic acids and/or their anhydrides in the presence of a transesterification catalyst in a multi-stage operation at different pressure levels with at least one reaction stage at atmospheric pressure and at least one reaction stage at reduced pressure, where distillate is removed from the reaction system, which process comprises heating the reaction mixture in two or more phases in the atmospheric-pressure reaction stage wherein the heating phases are interrupted by at least one phase in which the temperature is kept constant.Type: ApplicationFiled: September 7, 2011Publication date: March 8, 2012Applicant: BASF SEInventors: Gerlinde Tischer, Ulrike Mahn, Stefan Käshammer, Hermann Graf, Christian Seitz, Christian Nitschke, Dieter Rodewald
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Publication number: 20110245366Abstract: The invention relates to a process for preparing polyester alcohols by catalytically reacting at least one at least difunctional carboxylic acid or a derivative thereof with at least one at least difunctional alcohol, which comprises performing at least part of the reaction in the presence of microwave radiation.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: BASF SEInventors: Lionel GEHRINGER, Faissal-Ali El-Toufaili, Ulrike Mahn, Christian Pilger
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Publication number: 20100266759Abstract: The present invention relates to powder coatings which comprise tricarbamoyltriazines modified with carbamate groups.Type: ApplicationFiled: December 13, 2006Publication date: October 21, 2010Applicant: BASF SEInventors: Carl Jokisch, Rainer Erhardt, Eckhard Korona, Ulrike Mahn
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Publication number: 20100199439Abstract: Process for the preparation of aqueous formulations, wherein (A) at least one ethylenically unsaturated carboxylic acid, (B) at least one heterocyclic comonomer having at least one permanent cationic charge per molecule and (C-P1) at least one ethylenically unsaturated dicarboxylic acid or its anhydride are subjected to free radical copolymerization with one another in an aqueous medium and, shortly before the end or after the end of the copolymerization, further ethylenically unsaturated dicarboxylic acid (C-P2) or its anhydride is added.Type: ApplicationFiled: August 8, 2008Publication date: August 12, 2010Inventors: Markus Brym, Stephan Hueffer, Audrey Renoncourt, Ulrike Mahn, Franz Glocknitzer, Alexandra Bruhn
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Publication number: 20100192307Abstract: Process for the preparation of aqueous formulations, aqueous formulations and their use A process for the preparation of aqueous formulations, wherein (A) at least one ethylenically unsaturated mono- or dicarboxylic acid or the anhydride thereof, (B) at least one comonomer having at least one permanent cationic charge per molecule and (C-P1) at least one ethylenically unsaturated carboxamide, are subjected to free radical copolymerization with one another in an aqueous medium.Type: ApplicationFiled: August 5, 2008Publication date: August 5, 2010Applicant: BASF SEInventors: Markus Brym, Stephan Hüffer, Audrey Renoncourt, Ulrike Mahn, Franz Glocknitzer
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Publication number: 20100162490Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: ApplicationFiled: September 3, 2008Publication date: July 1, 2010Applicant: BASF SEInventors: Markus Brym, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schocker, Hubertus Peter Bell, Peter Danisch
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Publication number: 20100015676Abstract: The invention relates to a process for preparing polyesterols from at least one base polyesterol and at least one further reagent, wherein (a) the at least one base polyesterol and the at least one further reagent are mixed, (b) the mixture produced in (a) flows through a reactor in which at least one packing comprising at least one immobilized enzyme on a support is present, with the at least one base polyesterol and the at least one further reagent being reacted to form the polyesterol.Type: ApplicationFiled: August 29, 2007Publication date: January 21, 2010Applicant: BASF SEInventors: Mirko Kreitschmann, Maxium Peretolchin, Lionel Gehringer, Jean-Francois Stumbe, Dietmar Haering, Ulrike Mahn, Joern Duwenhorst
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Publication number: 20090292147Abstract: The invention relates to a process for the continuous preparation of polyether alcohols by reacting H-functional initiators with alkylene oxides using basic catalysts, wherein at least one initiator is metered with at least one alkylene oxide continuously into a back-mixing reactor and the reaction product is removed continuously from the back-mixing reactor.Type: ApplicationFiled: June 15, 2007Publication date: November 26, 2009Applicant: BASF SEInventors: Thomas Ostrowski, Johannes Adam, Dirk Meckelnburg, Ulrike Mahn, Renata Jovanovic, Achim Loeffler