Patents by Inventor Dieter Ulrichts
Dieter Ulrichts 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: 11524931Abstract: The application relates to a process for drying a composition comprising an alkali metal salt of a compound of general formula (I) R1R2N—CHR3—COOM or formula (II) R1R2N—CHR3CHR3—COOM, in particular N,N-dimethyl glycinate salt, and the use thereof.Type: GrantFiled: March 12, 2019Date of Patent: December 13, 2022Assignee: Taminco BVInventors: Kim Dumoleijn, Kristof Moonen, Daan Ruben Scheldeman, Angelo Lauwaerts, Dieter Ulrichts
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Publication number: 20210040030Abstract: Method of purifying an alkali metal salt of a compound of the general Formula (I) or Formula (II) wherein R1, R2 and R3 are independently H, an alkyl, an alkenyl, or a hydroxyalkyl radical containing from 1 to 18 carbon atoms, or from 1 to 6 carbon atoms; or wherein R1 and R2 form jointly together with the N atom a heterocyclic 5- or 6-membered ring; said method comprising providing a mixture comprising said, an alkali metal hydroxide and water, and subjecting the mixture to a step (X): (X) reducing the quantity of removing said alkali metal hydroxide from the mixture; wherein (A) said alkali metal hydroxide is reduced by subjecting said mixture to electrodialysis; and/or (B) said alkali metal hydroxide is reduced by adding an acid to said mixture.Type: ApplicationFiled: March 12, 2019Publication date: February 11, 2021Applicant: Taminco BVBAInventors: Kim Dumoleijn, Kristof Moonen, Daan Ruben Scheldeman, Angelo Lauwaerts, Dieter Ulrichts, Luc Joseph Jan Pinoy
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Publication number: 20210017121Abstract: The application relates to a process for drying a composition comprising an alkali metal salt of a compound of general formula (I) R1R2N—CHR3—COOM or formula (II) R1R2N—CHR3CHR3—COOM, in particular N,N-dimethyl glycinate salt, and the use thereof.Type: ApplicationFiled: March 12, 2019Publication date: January 21, 2021Applicant: Taminco BVBAInventors: Kim Dumoleijn, Kristof Moonen, Daan Ruben Scheldeman, Angelo Lauwaerts, Dieter Ulrichts
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Patent number: 10829442Abstract: A process for the preparation of N-(dialkylaminoalkyl)-carbamic acid esters, in particular (propyl N-[3-(dimethylamino)propyl] carbamate) comprising an oxidative carbonylation reaction of a compound of general structure (II) wherein each of R1 and R2, equal to or different from each other, are independently selected from an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; R3 is selected from an alkyl group having 1 to 36 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; each of R?, R? and R4, equal to or different from each other, are independently selected from H, an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; and n is an integer in the range from 1 to 8, with a hydroxyl compound of general formula (III), R3—OH (III) and in the presence of a catalyst system.Type: GrantFiled: August 3, 2017Date of Patent: November 10, 2020Assignee: Taminco BVBAInventors: Frederik Van Waes, Kristof Moonen, Dieter Ulrichts
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Publication number: 20190169115Abstract: A process for the preparation of N-(dialkylaminoalkyl)-carbamic acid esters, in particular (propyl N-[3-(dimethylamino)propyl] carbamate) comprising an oxidative carbonylation reaction of a compound of general structure (II) wherein each of R1 and R2, equal to or different from each other, are independently selected from an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; R3 is selected from an alkyl group having 1 to 36 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; each of R?, R? and R4, equal to or different from each other, are independently selected from H, an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; and n is an integer in the range from 1 to 8, with a hydroxyl compound of general formula (III), R3—OH (III) and in the presence of a catalyst system.Type: ApplicationFiled: August 3, 2017Publication date: June 6, 2019Applicant: Taminco BVBAInventors: Frederik Van Waes, Kristof Moonen, Dieter Ulrichts
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Patent number: 9527799Abstract: Disclosed is a process for the production of choline hydroxide includes reacting at a temperature above 30.0° C. ethylene oxide, trimethylamine, and water in the presence of an aqueous medium in such amounts as to form a diluted choline hydroxide solution having a choline hydroxide concentration of less than 40 wt % and removing at least a portion of the aqueous medium from the diluted choline hydroxide solution to form a concentrated aqueous choline hydroxide solution having a choline hydroxide concentration which is at least 1.05 times the choline hydroxide concentration of the diluted choline hydroxide solution. The process allows for large scale, continuous production of concentrated aqueous choline hydroxide solutions of good quality under economically advantaged consumption factors for ethylene oxide.Type: GrantFiled: April 10, 2014Date of Patent: December 27, 2016Assignee: TamincoInventors: Kristof Moonen, Dieter Ulrichts, Daan Scheldeman
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Publication number: 20160068476Abstract: Disclosed is a process for the production of choline hydroxide includes reacting at a temperature above 30.0° C. ethylene oxide, trimethylamine, and water in the presence of an aqueous medium in such amounts as to form a diluted choline hydroxide solution having a choline hydroxide concentration of less than 40 wt % and removing at least a portion of the aqueous medium from the diluted choline hydroxide solution to form a concentrated aqueous choline hydroxide solution having a choline hydroxide concentration which is at least 1.05 times the choline hydroxide concentration of the diluted choline hydroxide solution. The process allows for large scale, continuous production of concentrated aqueous choline hydroxide solutions of good quality under economically advantaged consumption factors for ethylene oxide.Type: ApplicationFiled: April 10, 2014Publication date: March 10, 2016Applicant: TAMINCOInventors: Kristof MOONEN, Dieter ULRICHTS, Daan SCHELDEMAN
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Patent number: 9216944Abstract: A continuous process for the production of choline hydroxide includes reacting ethylene oxide, trimethylamine, and water in a reaction zone to form a reaction mixture and extracting heat from the reaction mixture. Subsequently, phase separation of the reaction mixture is induced to obtain a choline hydroxide phase and an organic liquid phase comprising trimethylamine. A choline hydroxide solution (e.g., at a concentration of about 40% to 50% by weight, based on total weight of the choline hydroxide solution) is obtained from the choline hydroxide phase.Type: GrantFiled: December 29, 2011Date of Patent: December 22, 2015Assignee: TAMINCOInventors: Kristof Moonen, Dieter Ulrichts, Daan Scheldeman
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Publication number: 20150031917Abstract: A continuous process for the production of choline hydroxide includes reacting ethylene oxide, trimethylamine, and water in a reaction zone to form a reaction mixture and extracting heat from the reaction mixture. Subsequently, phase separation of the s reaction mixture is induced to obtain a choline hydroxide phase and an organic liquid phase comprising trimethylamine. A choline hydroxide solution (e.g., at a concentration of about 40% to 50% by weight, based on total weight of the choline hydroxide solution) is obtained from the choline hydroxide phase.Type: ApplicationFiled: December 29, 2011Publication date: January 29, 2015Applicant: TAMINCOInventors: Kristof Moonen, Dieter Ulrichts, Daan Scheldeman