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).

  • Patent number: 10835456
    Abstract: 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: Grant
    Filed: July 17, 2017
    Date of Patent: November 17, 2020
    Assignee: BASF SE
    Inventors: Kathrin Meyer-Boehm, Thrandur Helgason, Raajvinder Singh, Walter Dobler, Peter Schording, Christof Wilhelm Wigbers, Karl Kolter, Stefan Bruhns, Wolf Pelletier, Daniel Wagner
  • Patent number: 10414716
    Abstract: 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: Grant
    Filed: December 1, 2015
    Date of Patent: September 17, 2019
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Wolfgang Mägerlein, Thomas Krug, Johann-Peter Melder
  • Publication number: 20190240119
    Abstract: 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: Application
    Filed: July 17, 2017
    Publication date: August 8, 2019
    Inventors: KATHRIN MEYER-BOEHM, Thrandur HELGASON, Raajvinder SINGH, Walter DOBLER, Peter SCHORDING, Christof Wilhelm WIGBERS, Karl KOLTER, Stefan BRUHNS, Wolf PELLETIER, Daniel WAGNER
  • Patent number: 10280237
    Abstract: 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: Grant
    Filed: August 11, 2015
    Date of Patent: May 7, 2019
    Assignee: BASF SE
    Inventors: Bernhard Ulrich von Vacano, Sophia Ebert, Bjoern Ludolph, Christof Wilhelm Wigbers, Christian Eidamshaus, Brian J. Loughnane, Frank Huelskoetter, Stefano Scialla
  • Patent number: 9981904
    Abstract: 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: Grant
    Filed: August 25, 2015
    Date of Patent: May 29, 2018
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Wolfgang Maegerlein, Thomas Krug, Johann-Peter Melder, Thomas Heidemann, Bernd Stein
  • Patent number: 9974985
    Abstract: 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: Grant
    Filed: May 13, 2015
    Date of Patent: May 22, 2018
    Assignee: BASF SE
    Inventors: Sophia Ebert, Björn Ludolph, Christof Wilhelm Wigbers, Dieter Boeckh, Frank Huelskoetter, Stefano Scialla, Kevin Christmas, Darren Rees, Brian J. Loughnane
  • Publication number: 20170362164
    Abstract: 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: Application
    Filed: December 1, 2015
    Publication date: December 21, 2017
    Inventors: Christof Wilhelm WIGBERS, Wolfgang MÄGERLEIN, Thomas KRUG, Johann-Peter MELDER
  • Publication number: 20170275232
    Abstract: 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: Application
    Filed: August 25, 2015
    Publication date: September 28, 2017
    Applicant: BASF SE
    Inventors: Christof Wilhelm WIGBERS, Wolfgang MAEGERLEIN, Thomas KRUG, Johann-Peter MELDER, Thomas HEIDEMANN, Bernd STEIN
  • Publication number: 20170275395
    Abstract: 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: Application
    Filed: August 11, 2015
    Publication date: September 28, 2017
    Inventors: Bernhard Ulrich von Vacano, Sophia Ebert, Bjoern Ludolph, Christof Wilhelm Wigbers, Christian Eidamshaus, Brian J. Loughnane, Frank Huelskoetter, Stefano Scialla
  • Publication number: 20150329476
    Abstract: 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: Application
    Filed: May 13, 2015
    Publication date: November 19, 2015
    Inventors: Sophia Ebert, Bjorn Ludolph, Christof Wilhelm Wigbers, Dieter Boeckh, Frank Huelskoetter, Stefano Scialla, Kevin Christmas, Darren Rees, Brian J. Loughnane
  • Publication number: 20150329477
    Abstract: 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-dimethyl
    Type: Application
    Filed: December 18, 2013
    Publication date: November 19, 2015
    Applicant: BASF SE
    Inventors: Ortmund LANG, Norbert ASPRION, Axel BINDER, Bernd METZEN, Christof Wilhelm WIGBERS, Petr KUBANEK, Thomas STEINHILBER
  • Patent number: 9139511
    Abstract: 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: Grant
    Filed: March 22, 2012
    Date of Patent: September 22, 2015
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Christoph Müller, Wolfgang Mägerlein, Petr Kubanek, Thomas Heidemann, Johann-Peter Melder, Thomas Krug, Oliver Bey
  • Patent number: 9000218
    Abstract: 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: Grant
    Filed: January 9, 2013
    Date of Patent: April 7, 2015
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein
  • Patent number: 8933223
    Abstract: 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: Grant
    Filed: October 14, 2011
    Date of Patent: January 13, 2015
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein, Harald Meiβner
  • Patent number: 8921600
    Abstract: 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: Grant
    Filed: May 17, 2012
    Date of Patent: December 30, 2014
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Marion Kristina Brinks, Johann-Peter Melder
  • Patent number: 8772547
    Abstract: 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: Grant
    Filed: March 11, 2010
    Date of Patent: July 8, 2014
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Martin Ernst, Laszlo Szarvas, Giovanni D'Andola, Ellen Dahlhoff, Gabriele Iffland, Peter Raatz, Falk Simon, Matthias Frauenkron
  • Publication number: 20140171320
    Abstract: 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: Application
    Filed: December 13, 2013
    Publication date: June 19, 2014
    Applicant: BASF SE
    Inventors: Frederic Bauer, Paul Klingelhoefer, Christof Wilhelm Wigbers, Eva-Maria Reis-Walther
  • Patent number: 8637668
    Abstract: 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: Grant
    Filed: June 13, 2011
    Date of Patent: January 28, 2014
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein, Harald Meiβner
  • Patent number: 8536377
    Abstract: 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: Grant
    Filed: November 2, 2009
    Date of Patent: September 17, 2013
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Martin Ernst
  • Publication number: 20130178656
    Abstract: 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: Application
    Filed: January 9, 2013
    Publication date: July 11, 2013
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein