Patents by Inventor Dagmar Pascale Kunsmann-Keitel
Dagmar Pascale Kunsmann-Keitel 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: 20240052102Abstract: The present invention relates to a binder composition comprising a) component A comprising polymer(s) A1 having primary and/or secondary amino groups wherein polymer(s) A1 has(have) a primary and secondary amine group nitrogen content (NCps) of at least 1 wt.-% and b) component B comprising hydroxyacetone.Type: ApplicationFiled: December 22, 2021Publication date: February 15, 2024Inventors: Gereon Antonius SOMMER, Guenter SCHERR, Stephan WINKOETZ, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL, Ralph LUNKWITZ, David TUERP
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Publication number: 20240043616Abstract: The present invention relates to a binder composition comprising a) Component A comprising amino acid polymer(s) A1 and b) Component B comprising component B1 selected from the group consisting of pentoses, hexoses, disaccharides of pentoses and/or hexoses and mixtures thereof, wherein the amino acid polymer(s) A1 has(have) a total weight average molecular weight Mw, total of at least 800 g/mol and at most 10.000 g/mol and wherein the binder composition comprises at least 55 wt.-% amino acid polymer(s) A1 based on the total weight of the amino acid polymer(s) A1 and component B1.Type: ApplicationFiled: December 22, 2021Publication date: February 8, 2024Inventors: Gereon Antonius SOMMER, Stephan WEINKOETZ, David TUERP, Ralph LUNKWITZ, IV, Claus FUEGER, Guenter SCHERR, Jessica Nadine HAMANN, Joequim Henrique TELES, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL, Thomas SERVAY
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Publication number: 20240043617Abstract: The present invention relates to a binder composition comprising component A comprising polymer(s) A1 and optionally component B comprising component B1 which is selected from the group consisting of a mono-saccharides, disaccharides, droxyacetone, glycolaldehyde and mixtures thereof, wherein polymer(s) A1 comprises at least 70 wt.-% poly(amino acid)s based on the total weight of the polymers) A1 and has (have) a total weight average molecular weight Mw, total of 800 g/mol to 10.000 g/mol, wherein the binder composition comprises 60 to 100 wt.-% polymer(s) A1, and 0 to 40 wt.-% component B1, based on the total weight of the sum of polymer(s) Al and component B1, wherein the weight amounts of the polymer(s) Al and component B1 are selected such that the total weight of the sum of polymer(s) A1 and component B1 is 100 wt.-%.Type: ApplicationFiled: December 22, 2021Publication date: February 8, 2024Inventors: Gereon Antonius SOMMER, Stephan WEINKOETZ, David TUERP, Guenter SCHERR, Jessica Nadine HAMANN, Joaquim Henrique TELES, Ralph LUNKWITZ, Thomas SERVAY, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL
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Patent number: 11440876Abstract: A process produces a mono vinyl thioether by reacting acetylene with a compound containing one thiol group and one hydroxy group, referred to as a thiol-hydroxy compound, where the reaction is performed at a pressure below 2 bars.Type: GrantFiled: April 20, 2020Date of Patent: September 13, 2022Assignee: BASF SEInventors: Ruth Lohwasser, Pavel Tuzina, Frank Bienewald, Dagmar Pascale Kunsmann-Keitel
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Publication number: 20220144767Abstract: A process produces a mono vinyl thioether by reacting acetylene with a compound containing one thiol group and one hydroxy group, referred to as a thiol-hydroxy compound, where the reaction is performed at a pressure below 2 bars.Type: ApplicationFiled: April 20, 2020Publication date: May 12, 2022Applicant: BASF SEInventors: Ruth Lohwasser, Pavel Tuzina, Frank Bienewald, Dagmar Pascale Kunsmann-Keitel
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Publication number: 20210395558Abstract: The present invention relates to photocurable compositions, comprising (A1) a N-vinyloxazolidinone of formula (I), wherein R1, R2, R3 and R4 are independently of each other a hydrogen atom or an organic group having not more than 10 carbon atoms, (A2) optionally one, or more second reactive diluents, (B) one, or more oligomers, and (C) a photoinitiator (C), wherein the amount of component (A1) is 5 to 70% by weight based on the amount of components (A1), (A2) and (B), wherein the viscosity of said photocurable composition is in the range 10 to 3000 mPa·s, preferably 10 to 1500 mPa·s at 30° C. The compositions, from which cured three-dimensional shaped articles having balanced mechanical properties combining stiffness with high toughness can be made, are particularly suitable for the production of three-dimensional articles by stereolithography and photopolymer jetting.Type: ApplicationFiled: September 20, 2019Publication date: December 23, 2021Inventors: Giovanni D'ANDOLA, Andre FUCHS, Edouard LOISEL, Dagmar Pascale KUNSMANN-KEITEL, Erhard GUENTHER
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Publication number: 20200010395Abstract: Method for preparing a ?-hydroxyketone having 4 to 8 carbon atoms by reacting formaldehyde with a branched or unbranched dialkyl ketone having 3 to 7 carbon atoms in the liquid phase in a reactor in the presence of a basic component at a temperature of 50 to 150° C. and a pressure of 0.2 to 10 MPa abs, in which (a) a trialkylamine having 1 to 4 carbon atoms per alkyl group is used as basic component and the reaction (b) is carried out in the presence of 1 to 25% by weight water, based on the liquid phase, and (c) at a molar ratio of trialkylamine to formaldehyde in the liquid phase of from 1 to 5.Type: ApplicationFiled: July 2, 2019Publication date: January 9, 2020Inventors: Dagmar Pascale KUNSMANN-KEITEL, Georg Heinrich GROSCH, Jan-Dirk ARNDT, Gauthier Luc Maruice AVERLANT, Wolf-Steffen WEISSKER, Marcus Georg SCHREMS, Dan-Tam Daniel TANG
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Publication number: 20200010394Abstract: Method for preparing 1-hydroxy-2-methyl-3-pentanone (I) by reacting formaldehyde with diethyl ketone in a reactor in the presence of water and a basic component at a temperature of 50 to 150° C. and a pressure of 0.2 to 10 MPa abs, in which the basic component used is a trialkylamine from the group comprising trimethylamine, N,N-dimethylethylamine, N,N-diethylmethylamine, triethylamine, N,N-dimethyl-n-propylamine, N-ethyl-N-methyl-n-propylamine, N,N-dimethylisopropylamine, N-ethyl-N-methylisopropylamine, N,N-dimethyl-n-butylamine, N,N-dimethylisobutylamine and N,N-dimethyl-sec-butylamine, and from the reaction mixture obtained, trialkylamine as low boiler and a bottom product comprising 1-hydroxy-2-methyl-3-pentanone (I) as high boiler are separated in a distillation apparatus, wherein the distillation apparatus is operated at a top pressure of 0.2 to 1 MPa abs.Type: ApplicationFiled: July 2, 2019Publication date: January 9, 2020Inventors: Dagmar Pascale KUNSMANN-KEITEL, Georg Heinrich GROSCH, Jan-Dirk ARNDT, Gauthier Luc Maruice AVERLANT, Wolf-Steffen WEISSKER, Marcus Georg SCHREMS, Dan-Tam Daniel TANG
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Patent number: 9447295Abstract: Use of a radiation curable composition as printing ink for ink-jet printing, wherein the radiation curable composition comprises N-vinyloxazolidinone of formula (I) in which R1 to R4 independently from each other are a hydrogen atom or an organic radical having not more than 10 carbon atoms.Type: GrantFiled: August 5, 2014Date of Patent: September 20, 2016Assignee: BASF SEInventors: Erhard Guenther, Radwan Abdallah, Giovanni Dandola, Dagmar Pascale Kunsmann-Keitel, Edouard Loisel
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Patent number: 7777068Abstract: A system comprising a) Ni(0) b) from 4 to 10 mol per mol of Ni(0) in a) of a compound (I) of the formula P(X1R1)(X2R2)(X3R3)??(I) where X1, X2, X3 are each, independently of one another, oxygen or a single bond, R1, R2, R3 are, independently of one another, identical or different organic radicals and c) from 1 to 4 mol per mol of Ni(0) in a) of a compound (II) of the formula where X11, X12, X13 X21, X22, X23 are each, independently of one another, oxygen or a single bond, R11, R12 are identical or different, individual or bridged organic radicals, R21, R22 are identical or different, individual or bridged organic radicals and Y is a bridging group is suitable as catalyst for preparing mixtures of monoolefinic C5 mononitriles having nonconjugated C?C and C?N bonds by hydrocyanation of a 1,3-butadiene-containing hydrocarbon mixture and for preparing a dinitrile by hydrocyanation of a mixture of monoolefinic C5 mononitriles having nonconjugated C?C and C?N bonds.Type: GrantFiled: September 25, 2007Date of Patent: August 17, 2010Assignee: BASF SEInventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel
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Patent number: 7462263Abstract: A process for dewatering hydrocyanic acid by distillation, which includes distilling crude hydrocyanic acid containing from 50 to 99.9% by weight of HCN, from 0.1 to 40% by weight of water, from 0 to 15% by weight of carbon oxides and optionally from 0.01 to 1% by weight of an involatile stabilizer, at a pressure of from 1 bar to 2.5 bar, a bottom temperature of from 100° C. to 130° C. and a top temperature of from 25° C. to 54° C., in the absence of a volatile stabilizer, in a distillation column to obtain a top draw stream containing purified, anhydrous hydrocyanic acid and carbon oxides and a bottom draw stream including water and, optionally, the involatile stabilizer.Type: GrantFiled: April 15, 2004Date of Patent: December 9, 2008Inventors: Michael Bartsch, Robert Baumann, Gerd Haderlein, Miquel Angel Flores, Tim Jungkamp, Hermann Luyken, Jens Scheidel, Wolfgang Siegel, Dagmar Pascale Kunsmann-Keitel, Peter Bassler
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Patent number: 7439381Abstract: A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene with hydrogen cyanide over at least one catalyst, wherein the 1,3-butadiene and/or hydrogen cyanide is contacted with at least one microporous solid before the reaction.Type: GrantFiled: January 26, 2005Date of Patent: October 21, 2008Assignee: BASF SEInventors: Tim Jungkamp, Dagmar Pascale Kunsmann-Keitel, Michael Bartsch, Robert Baumann, Gerd Haderlein, Hermann Luyken, Jens Scheidel
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Patent number: 7361778Abstract: A process for isomerizing cis-2-pentenenitrile to trans-3-pentenenitrile in the presence of aluminum oxide as a catalyst, wherein the aluminum oxide has a BET surface area of at least 50 m2/g.Type: GrantFiled: April 16, 2004Date of Patent: April 22, 2008Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Gerd Haderlein, Miquel Angel Flores, Tim Jungkamp, Hermann Luyken, Jens Scheidel, Wolfgang Siegel, Dagmar Pascale Kunsmann-Keitel
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Patent number: 7345006Abstract: A system comprising a) Ni(0) b) from 4 to 10 mol per mol of Ni(0) in a) of a compound (I) of the formula P(X1R1)(X2R2)(X3R3) ??(I) where X1, X2, X3 are each, independently of one another, oxygen or a single bond, R1, R2, R3 are, independently of one another, identical or different organic radicals and c) from 1 to 4 mol per mol of Ni(0) in a) of a compound (II) of the formula where X11, X12, X13 X21, X22, X23 are each, independently of one another, oxygen or a single bond, R11, R12 are identical or different, individual or bridged organic radicals, R21, R22 are identical or different, individual or bridged organic radicals and Y is a bridging group is suitable as catalyst for preparing mixtures of monoolefinic C5 mononitriles having nonconjugated C?C and C?N bonds by hydrocyanation of a 1,3-butadiene-containing hydrocarbon mixture and for preparing a dinitrile by hydrocyanation of a mixture of monoolefinic C5 mononitriles having nonconjugated C?C and C?N bonds.Type: GrantFiled: July 16, 2002Date of Patent: March 18, 2008Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel
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Patent number: 7067685Abstract: The invention relates to phosphinites I of formulae (1) or (2), in which R1, R2, R5, R6, R7, R8, R9 independently represent hydrogen, an alkyl or alkylene group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms; R3 is H or methyl; R4 is i-propyl or t-butyl; X is F, Cl or CF3 and n is 1 or 2Type: GrantFiled: October 4, 2002Date of Patent: June 27, 2006Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel, Ferenc Molnar
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Patent number: 7022866Abstract: Phosphonites I of the formula 1 or 2 where R1, R2 are each, independently of one another, hydrogen, an alkyl or alkylene group having from 1 to 8 carbon atoms or an alkoxy group having from 1 to 8 carbon atoms, with the proviso that R1 and R2 are not simultaneously H, R3 is H or methyl, R4 is t-butyl, R5, R6, R7, R8, R9 are each, independently of one another, H or an alkyl or alkylene group having from 1 to 8 carbon atoms.Type: GrantFiled: October 1, 2002Date of Patent: April 4, 2006Assignee: BASF AktiengesellschaftInventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel, Ferenc Molnar
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Patent number: 6852199Abstract: A process is provided for the distillative separation of pentene nitrile isomers which have a relative volatility alpha ranging from 1.0 to 1.3 in the pressure range from 1 to 500 kPa, wherein the distillation is carried out in the presence of a liquid diluent which forms with the pentene nitrile isomers, under the same pressure conditions, azeotropes whose relative volatility alpha is higher than that of the pentene nitrile isomers to be separated.Type: GrantFiled: September 25, 2001Date of Patent: February 8, 2005Assignee: BASF AktiengesellschaftInventors: Tim Jungkamp, Dagmar Pascale Kunsmann-Keitel, Robert Baumann, Peter Bassler, Wolfgang Siegel
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Publication number: 20040235648Abstract: Phosphonites I of the formula 1 or 2 1Type: ApplicationFiled: April 8, 2004Publication date: November 25, 2004Inventors: Michael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Atmayer, Wolfgang Siegel, Ferenc Molnar
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Patent number: 6822110Abstract: The present invention describes a process for preparing isophoronenitrile by adding HCN to isophorone. The catalyst used is CaO which has a BET surface area of >1.5 m2/g. The use of such a catalyst achieves high yields and selectivities.Type: GrantFiled: November 6, 2003Date of Patent: November 23, 2004Assignee: BASF AktiengesellschaftInventors: Dagmar Pascale Kunsmann-Keitel, Gerold Braun, Ingo Münster, Klaus Mundinger, Gunter Scherhag, Wolfgang Siegel
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Patent number: 6770770Abstract: Novel phosphites have the formula I P(O—R1)x(O—R2)y(O—R3)z(O—R4)p I where R1: aromatic radical having a C1-C18-alkyl substituent in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic substituent in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic system fused on in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, R2: aromatic radical having a C1-C18-alkyl substituent in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic substituent in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic system fused on in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, where the aromatic radicalType: GrantFiled: April 25, 2002Date of Patent: August 3, 2004Assignee: BASF AktiengesellschaftInventors: Robert Baumann, Jakob Fischer, Tim Jungkamp, Dagmar Pascale Kunsmann-Keitel, Wolfgang Siegel