Patents by Inventor Christof Wilhelm Wigbers
Christof Wilhelm Wigbers 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: 10835456Abstract: The present invention relates to a pulverulent vitamin formulation in which the vitamin essentially has a particle size of less than 0.7 ?m and which comprises an effective amount of propyl gallate, and also to processes for producing this formulation, and to formulations obtainable by these processes and to the use thereof as animal feed, food, food supplement, personal care product or pharmaceutical composition. The formulations of the invention have improved stability compared to the prior art.Type: GrantFiled: July 17, 2017Date of Patent: November 17, 2020Assignee: BASF SEInventors: Kathrin Meyer-Boehm, Thrandur Helgason, Raajvinder Singh, Walter Dobler, Peter Schording, Christof Wilhelm Wigbers, Karl Kolter, Stefan Bruhns, Wolf Pelletier, Daniel Wagner
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Patent number: 10414716Abstract: A process for producing a polyetheramine by reacting a polyether alcohol, previously synthesized in the presence of a basic potassium or sodium compound as catalyst, with ammonia in the presence of hydrogen and a catalyst in one reactor or a plurality of reactors, wherein the employed polyether alcohol when previously synthesized in the presence of a basic potassium compound as catalyst has a content of potassium ions of less than 50 wppm and when previously synthesized in the presence of a basic sodium compound as catalyst has a content of sodium ions of less than 50 wppm.Type: GrantFiled: December 1, 2015Date of Patent: September 17, 2019Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Wolfgang Mägerlein, Thomas Krug, Johann-Peter Melder
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Publication number: 20190240119Abstract: The present invention relates to a pulverulent vitamin formulation in which the vitamin essentially has a particle size of less than 0.7 ?m and which comprises an effective amount of propyl gallate, and also to processes for producing this formulation, and to formulations obtainable by these processes and to the use thereof as animal feed, food, food supplement, personal care product or pharmaceutical composition. The formulations of the invention have improved stability compared to the prior art.Type: ApplicationFiled: July 17, 2017Publication date: August 8, 2019Inventors: KATHRIN MEYER-BOEHM, Thrandur HELGASON, Raajvinder SINGH, Walter DOBLER, Peter SCHORDING, Christof Wilhelm WIGBERS, Karl KOLTER, Stefan BRUHNS, Wolf PELLETIER, Daniel WAGNER
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Patent number: 10280237Abstract: The present invention relates to salts of etheramines and polymeric acid, and in particular to salts of etheramines and polycarboxylic acid and their manufacturing process.Type: GrantFiled: August 11, 2015Date of Patent: May 7, 2019Assignee: BASF SEInventors: Bernhard Ulrich von Vacano, Sophia Ebert, Bjoern Ludolph, Christof Wilhelm Wigbers, Christian Eidamshaus, Brian J. Loughnane, Frank Huelskoetter, Stefano Scialla
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Patent number: 9981904Abstract: The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.Type: GrantFiled: August 25, 2015Date of Patent: May 29, 2018Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Wolfgang Maegerlein, Thomas Krug, Johann-Peter Melder, Thomas Heidemann, Bernd Stein
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Patent number: 9974985Abstract: The invention relates to etheramines of formula (I) or formula (II) or a mixture of etheramines of formula (I) and formula (II) based on 1,2-dialcohols, wherein R1 is a linear or branched alkyl group with 2 to 16 carbon atoms, R2 is a hydrogen or an alkyl group with 1 to 16 carbon atoms, x?1 and y?1 and the sum of x+y is between 2 and 10, and A1, A2, A3 and A4 are independently selected from the group consisting of linear and/or branched alkylenes having 2 to 18 carbon atoms and wherein Z1-Z4 are independently selected from OH, NH2, NHR? or NR?R?, wherein at least one of Z1-Z2 and at least one of Z3-Z4 is NH2, NHR? or NR?R?, wherein R? and R? are independently selected from alkylenes having 2 to 6 carbon atoms. The invention further relates to etheramines obtainable by the alkoxylation and amination of 1,2-dialcohols.Type: GrantFiled: May 13, 2015Date of Patent: May 22, 2018Assignee: BASF SEInventors: Sophia Ebert, Björn Ludolph, Christof Wilhelm Wigbers, Dieter Boeckh, Frank Huelskoetter, Stefano Scialla, Kevin Christmas, Darren Rees, Brian J. Loughnane
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Publication number: 20170362164Abstract: A process for producing a polyetheramine by reacting a polyether alcohol, previously synthesized in the presence of a basic potassium or sodium compound as catalyst, with ammonia in the presence of hydrogen and a catalyst in one reactor or a plurality of reactors, wherein the employed polyether alcohol when previously synthesized in the presence of a basic potassium compound as catalyst has a content of potassium ions of less than 50 wppm and when previously synthesized in the presence of a basic sodium compound as catalyst has a content of sodium ions of less than 50 wppm.Type: ApplicationFiled: December 1, 2015Publication date: December 21, 2017Inventors: Christof Wilhelm WIGBERS, Wolfgang MÄGERLEIN, Thomas KRUG, Johann-Peter MELDER
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Publication number: 20170275395Abstract: The present invention relates to salts of etheramines and polymeric acid, and in particular to salts of etheramines and polycarboxylic acid and their manufacturing process.Type: ApplicationFiled: August 11, 2015Publication date: September 28, 2017Inventors: Bernhard Ulrich von Vacano, Sophia Ebert, Bjoern Ludolph, Christof Wilhelm Wigbers, Christian Eidamshaus, Brian J. Loughnane, Frank Huelskoetter, Stefano Scialla
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Publication number: 20170275232Abstract: The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.Type: ApplicationFiled: August 25, 2015Publication date: September 28, 2017Applicant: BASF SEInventors: Christof Wilhelm WIGBERS, Wolfgang MAEGERLEIN, Thomas KRUG, Johann-Peter MELDER, Thomas HEIDEMANN, Bernd STEIN
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Publication number: 20150329477Abstract: What is proposed is a continuous process for discharging a solid, salt-containing phase comprising alkali metal acetates and/or alkaline earth metal acetates from the product mixture from the preparation of N,N-dimethylacetamide (DMAC) by reaction of methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a catalyst comprising N,N-dimethylacetamide (DMAC), methyl acetate (MeOAc), dimethylamine (DMA) and a catalyst, having the following process steps: level-regulated feeding of the product mixture as feed stream into an evaporation vessel of a forced circulation evaporator, flash evaporation of volatile components of the product mixture in the forced circulation evaporator to form a vapor phase comprising N,N-dimethylacetamide (DMAC) and precipitation of a solid, salt-containing phase comprising alkali metal acetates and/or alkaline earth metal acetates, recycling of the volatile components of the product mixture obtained after the flash evaporation, removal of a vapor phase comprising N,N-dimethylType: ApplicationFiled: December 18, 2013Publication date: November 19, 2015Applicant: BASF SEInventors: Ortmund LANG, Norbert ASPRION, Axel BINDER, Bernd METZEN, Christof Wilhelm WIGBERS, Petr KUBANEK, Thomas STEINHILBER
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Publication number: 20150329476Abstract: The invention relates to etheramines of formula (I) or formula (II) or a mixture of etheramines of formula (I) and formula (II) based on 1,2-dialcohols, wherein R1 is a linear or branched alkyl group with 2 to 16 carbon atoms, R2 is a hydrogen or an alkyl group with 1 to 16 carbon atoms, x?1 and y?1 and the sum of x+y is between 2 and 10, and A1, A2, A3 and A4 are independently selected from the group consisting of linear and/or branched alkylenes having 2 to 18 carbon atoms and wherein Z1-Z4 are independently selected from OH, NH2, NHR? or NR?R?, wherein at least one of Z1-Z2 and at least one of Z3-Z4 is NH2, NHR? or NR?R?, wherein R? and R? are independently selected from alkylenes having 2 to 6 carbon atoms. The invention further relates to etheramines obtainable by the alkoxylation and amination of 1,2-dialcohols.Type: ApplicationFiled: May 13, 2015Publication date: November 19, 2015Inventors: Sophia Ebert, Bjorn Ludolph, Christof Wilhelm Wigbers, Dieter Boeckh, Frank Huelskoetter, Stefano Scialla, Kevin Christmas, Darren Rees, Brian J. Loughnane
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Patent number: 9139511Abstract: The present invention relates to a process for hydrogenating nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the catalyst is arranged in a fixed bed, wherein the cross-sectional loading in the reactor is in the range from 5 kg/(m2 s) to 50 kg/(m2 s). The present invention further relates to a process for preparing downstream products of isophoronediamine (IPDA) or N,N-dimethylaminopropylamine (DMAPA) from amines prepared according to the invention.Type: GrantFiled: March 22, 2012Date of Patent: September 22, 2015Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Christoph Müller, Wolfgang Mägerlein, Petr Kubanek, Thomas Heidemann, Johann-Peter Melder, Thomas Krug, Oliver Bey
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Patent number: 9000218Abstract: The present application relates to a process for preparing secondary amines by aminating excess primary or secondary alcohols with primary amines in the liquid phase in the presence of copper-comprising catalysts.Type: GrantFiled: January 9, 2013Date of Patent: April 7, 2015Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein
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Patent number: 8933223Abstract: A process for preparing a cyclic tertiary amine of the formula I where A is a C4-alkylene group, a C5-alkylene group or a —(CH2)2—B—(CH2)2— group, where B is oxygen (O) or an N—R1 radical and R1 is C1-C5-alkyl, aryl or C5-C7-cycloalkyl, and the radical R2 is a linear or branched C2-C16-alkyl, C5-C7-cycloalkyl or C7-C20-aralkyl, in which (i) an amino alcohol II from the group consisting of 1,4-aminobutanol, 1,5-aminopentanol, aminodiglycol (ADG) and aminoethylethanolamine of the formula IIa where R1 is as defined above or hydrogen (H), in which case R1=R2 in the amine I, is reacted with a primary or secondary alcohol R2OH (III) at a temperature in the range from 150 to 270° C. in the liquid phase in the presence of a copper-comprising heterogeneous catalyst in a reactor.Type: GrantFiled: October 14, 2011Date of Patent: January 13, 2015Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein, Harald Meiβner
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Patent number: 8921600Abstract: The invention relates to a process for producing carbon fillers having covalently bonded amino groups, by converting a mixture comprising carbon fillers and alkali metals and/or alkaline earth metals and/or amides thereof in liquid anhydrous ammonia, optionally together with an inert solvent, at temperatures of 35 to 500° C. and a pressure of 30 to 250 bar.Type: GrantFiled: May 17, 2012Date of Patent: December 30, 2014Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Marion Kristina Brinks, Johann-Peter Melder
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Patent number: 8772547Abstract: The present invention relates to a process for preparing 1-adamantyltrimethylammonium hydroxide, by A) reacting 1-adamantyldimethylamine with dimethyl sulfate to give 1-adamantyltrimethylammonium sulfate; and B) subjecting the 1-adamantyltrimethylammonium sulfate obtained in A) to anion exchange with an ion exchanger loaded with OH ions.Type: GrantFiled: March 11, 2010Date of Patent: July 8, 2014Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Martin Ernst, Laszlo Szarvas, Giovanni D'Andola, Ellen Dahlhoff, Gabriele Iffland, Peter Raatz, Falk Simon, Matthias Frauenkron
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Publication number: 20140171320Abstract: The present invention relates to a composition comprising a pesticide and an alkoxylate. The invention further relates to the alkoxylate, to a method for the production thereof and to the use thereof as adjuvant in pesticide-comprising spray mixtures. The invention further relates to a method for controlling phytopathogenic fungi and/or undesirable plant growth and/or undesirable insect or mite infestation and/or for regulating the growth of plants, wherein the composition is allowed to act on the respective pests, the habitat thereof or the plants to be protected from the respective pest, on the soil and/or on undesirable plants and/or the crop plants and/or the habitat thereof. Furthermore, the invention relates to seed comprising the composition.Type: ApplicationFiled: December 13, 2013Publication date: June 19, 2014Applicant: BASF SEInventors: Frederic Bauer, Paul Klingelhoefer, Christof Wilhelm Wigbers, Eva-Maria Reis-Walther
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Patent number: 8637668Abstract: Process for preparing a cyclic tertiary methylamine of the formula I where A is a C4-alkylene group, a C5-alkylene group or a —(CH2)2—B—(CH2)2— group, where B is oxygen (O) or an N—R1 radical and R1 is C1-C5-alkyl, aryl or C5-C7-cycloalkyl, wherein an amino alcohol II from the group consisting of 1,4-aminobutanol, 1,5-aminopentanol, aminodiglycol (ADG) or aminoethylethanolamine of the formula IIa where R1 is as defined above or is hydrogen (H), in which case R1?CH3 in the amine I, is reacted with methanol in a reactor at a temperature in the range from 150 to 270° C. in the liquid phase in the presence of a copper-comprising heterogeneous catalyst.Type: GrantFiled: June 13, 2011Date of Patent: January 28, 2014Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein, Harald Meiβner
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Patent number: 8536377Abstract: The present invention relates to a process for preparing N,N-substituted 3-aminopropan-1-ols by a) reacting secondary amine with acrolein at a temperature of (?50) to 100° C. and a pressure of 0.01 to 300 bar, and b) reacting the reaction mixture obtained in stage a) with hydrogen and ammonia in the presence of a hydrogenation catalyst at a pressure of 1 to 400 bar, wherein the molar ratio of secondary amine to acrolein in stage a) is 1:1 or more and the temperature in stage b) is in the range from (?50) to 70° C. In a preferred embodiment, acrolein which has been obtained from glycerol based on renewable raw materials is used.Type: GrantFiled: November 2, 2009Date of Patent: September 17, 2013Assignee: BASF SEInventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Martin Ernst
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Publication number: 20130178656Abstract: The present application relates to a process for preparing secondary amines by aminating excess primary or secondary alcohols with primary amines in the liquid phase in the presence of copper-comprising catalysts.Type: ApplicationFiled: January 9, 2013Publication date: July 11, 2013Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein