Patents by Inventor Michael Wessling

Michael Wessling 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).

  • Publication number: 20240075433
    Abstract: The present disclosure relates to an anticoagulant-coated microporous hollow fiber membrane showing reduced thrombogenicity. The disclosure further relates to a method for producing the membrane and a filtration and/or diffusion device comprising the membrane.
    Type: Application
    Filed: October 4, 2021
    Publication date: March 7, 2024
    Inventors: Matthias WESSLING, Michael ALDERS, Ilka ROSE, Michael KATHER, Ralf MENDA, Bernd KRAUSE, Markus STORR, Martin REMPFER, Vivian Stefan KURBEL
  • Patent number: 8536334
    Abstract: The invention relates to a method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes, wherein the ligand, a 3,7-diaza-bicyclo[3.3.1]nonane compound, is reacted with an aqueous metal(II)salt solution in one step. According to the invention, the reaction stage is carried out with water as solvent.
    Type: Grant
    Filed: December 12, 2009
    Date of Patent: September 17, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Melanie Sajitz, Barbara Duecker, Michael Wessling
  • Patent number: 8293910
    Abstract: The invention relates to a one-pot reaction for the production of 3,7-diaza-bicyclo[3.3.1]nonane compounds, wherein in a first step a dicarboxylic acid ester is reacted with a pyridine aldehyde and a primary amine. The piperidone created in this manner is reacted with formaldehyde and a further primary amine in a second step. It is essential to the invention that both reaction steps are carried out in a one-pot variation in a C1-C4 alcohol as the solvent, and that the reaction water created is removed by means of distillation.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: October 23, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Melanie Sajitz, Steve Laborda, Peter Naumann, Michael Wessling
  • Patent number: 8148530
    Abstract: The present invention relates to a process for the preparation of 3,7-diazabicyclo[3.3.1]nonane compounds. According to the invention, in a first step, a dicarboxylic acid ester is reacted with a pyridine aldehyde and a primary amine. The piperidone which forms is reacted in a second stage with formaldehyde and a further primary amine. It is essential to the invention that, in the first reaction stage, a C2-C4-alcohol is used as solvent and, in the second reaction stage, a C3-C4-alcohol is used as solvent.
    Type: Grant
    Filed: June 10, 2006
    Date of Patent: April 3, 2012
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Michael Wessling, Barbara Duecker, Nicole Nitschke
  • Publication number: 20110263857
    Abstract: The invention relates to a method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes, wherein the ligand, a 3,7-diaza-bicyclo[3.3.1] nonane compound, is reacted with an aqueous metal(II)salt solution in one step. According to the invention, the reaction stage is carried out with water as solvent.
    Type: Application
    Filed: December 12, 2009
    Publication date: October 27, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Melanie Sajitz, Barbara Duecker, Michael Wessling
  • Patent number: 7977487
    Abstract: The invention relates to a method for producing the compositions cited in the title. According to this method: dipyridyl ketone is reacted with hydroxylamine; the oxime obtained thereby is reduced without intermediate isolation to form 1,1-di-(2-pyridyl)-methylamine, and; this amine is firstly reacted with 1 to 1.5 molar equivalent of picolyl chloride and then with another 1 to 1.5 molar equivalent of picolyl chloride to form the amine of formula (1). This amine is purified via the tetrafluoroborate salt and subsequently alkylated with an alkyl iodide. This method represents an improvement with regard to prior art methods for producing these compounds.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 12, 2011
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Michael Wessling, Barbara Duecker, Nicole Nitschke
  • Publication number: 20110152528
    Abstract: The invention relates to a one-pot reaction for the production of 3,7-diaza-bicyclo[3.3.1]nonane compounds, wherein in a first step a dicarboxylic acid ester is reacted with a pyridine aldehyde and a primary amine. The piperidone created in this manner is reacted with formaldehyde and a further primary amine in a second step. It is essential to the invention that both reaction steps are carried out in a one-pot variation in a C1-C4 alcohol as the solvent, and that the reaction water created is removed by means of distillation.
    Type: Application
    Filed: August 17, 2009
    Publication date: June 23, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Melanie Sajitz, Steve Laborda, Peter Naumann, Michael Wessling
  • Publication number: 20090256113
    Abstract: The invention relates to a method for the production of bleaching catalyst granules, containing a bleaching catalyst, an acidic polymer, a support material and optionally further adjuncts, characterized in that a fluid bed is formed from the support material in a fluidized bed apparatus, an aqueous solution or dispersion is added to the fluid bed, containing the bleaching catalyst, the acidic polymer, and optionally the further adjuncts which is then granulated and dried. The method is particularly suitable for bleaching catalysts of formula (1), where R, R1, R2, R3 and X have the meanings given in the description.
    Type: Application
    Filed: July 25, 2006
    Publication date: October 15, 2009
    Inventors: Georg Borchers, Andreas Schottstedt, Michael Wessling
  • Publication number: 20090234124
    Abstract: The present invention relates to a process for the preparation of 3,7-diazabicyclo[3.3.1]nonane compounds. According to the invention, in a first step, a dicarboxylic acid ester is reacted with a pyridine aldehyde and a primary amine. The piperidone which forms is reacted in a second stage with formaldehyde and a further primary amine. It is essential to the invention that, in the first reaction stage, a C2-C4-alcohol is used as solvent and, in the second reaction stage, a C3-C4-alcohol is used as solvent.
    Type: Application
    Filed: June 10, 2006
    Publication date: September 17, 2009
    Inventors: Michael Wessling, Barbara Duecker, Nicole Nitschke
  • Publication number: 20090221831
    Abstract: The invention relates to a method for producing the compositions cited in the title. According to this method: dipyridyl ketone is reacted with hydroxylamine; the oxime obtained thereby is reduced without intermediate isolation to form 1,1-di-(2-pyridyl)-methylamine, and; this amine is firstly reacted with 1 to 1.5 molar equivalent of picolyl chloride and then with another 1 to 1.5 molar equivalent of picolyl chloride to form the amine of formula (1). This amine is purified via the tetrafluoroborate salt and subsequently alkylated with an alkyl iodide. This method represents an improvement with regard to prior art methods for producing these compounds.
    Type: Application
    Filed: May 26, 2006
    Publication date: September 3, 2009
    Inventors: Michael Wessling, Barbara Duecker, Nicole Nitschke
  • Publication number: 20080035023
    Abstract: The invention relates to construction materials, in particular concrete, which contain polyester fibers. The polyester fibers are treated with an oligoester to improve their incorporation into the construction materials.
    Type: Application
    Filed: June 21, 2005
    Publication date: February 14, 2008
    Inventors: Michael Wessling, Alexander Lerch
  • Publication number: 20070277327
    Abstract: The invention relates to detergents and cleaning agents that contain both a dye fixative and a soil-release polymer. According to the invention, the dye fixatives used are (a) reaction products of polyamines and cyanamides and organic and/or inorganic acids, or cyanamides and aldehydes and ammonium salts, or cyanamides and aldehydes and amines, or amines and epichlorohydrin, (b) the group containing polyamines and polyamine derivatives, (c) the group containing polyimines and polyimine derivatives, (d) the group of cationic polyelectrolytes, (e) the group containing polymers that comprise imidazoline units or (f) the group containing bis(chloromethyl)biphenyl polyquat.
    Type: Application
    Filed: April 6, 2005
    Publication date: December 6, 2007
    Applicant: CLARIANT PRODUKTE (DEUTSCHLAND) GMBH
    Inventors: Michael Wessling, Frank-Peter Lang
  • Patent number: 7091167
    Abstract: The following dye-transfer-inhibiting dye fixatives are used in laundry detergents which comprise nonionic surfactants: Reaction products of a) amines with epichlorohydrin or b) cyanamide with amines and aldehydes.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 15, 2006
    Assignee: Clariant GmbH
    Inventors: Frank-Peter Lang, Helmut Berenbold, Michael Wessling
  • Patent number: 6858570
    Abstract: The following dye-transfer-inhibiting dye fixatives are used in laundry detergents: Reaction products of a) polyamines with cyanamides and amidosulfuric acid or b) cyanamides with aldehydes and ammonium salts or c) amines with epichlorohydrin.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: February 22, 2005
    Assignee: Clariant GmbH
    Inventors: Frank-Peter Lang, Helmut Berenbold, Michael Wessling
  • Publication number: 20030171249
    Abstract: The following dye-transfer-inhibiting dye fixatives are used in laundry detergents:
    Type: Application
    Filed: February 28, 2002
    Publication date: September 11, 2003
    Applicant: Clariant GmbH
    Inventors: Frank-Peter Lang, Helmut Berenbold, Michael Wessling
  • Publication number: 20020193280
    Abstract: The following dye-transfer-inhibiting dye fixatives are used in laundry detergents which comprise nonionic surfactants:
    Type: Application
    Filed: February 28, 2002
    Publication date: December 19, 2002
    Applicant: Clariant GmbH
    Inventors: Frank-Peter Lang, Helmut Berenbold, Michael Wessling
  • Patent number: 6153723
    Abstract: The invention relates to oligoesters obtained by polycondensation ofa) from 40 to 52 mol %, preferably from 45 to 50 mol %, of one or more dicarboxylic acids or esters thereof,b) from 10 to 40 mol %, preferably from 20 to 35 mol %, of ethylene glycol and/or propylene glycol,c) from 3 to 20 mol %, preferably from 10 to 15 mol %, of polyethylene glycol,d) from 0.5 to 10 mol %, preferably from 1 to 7.5 mol %, of a water-soluble addition product of from 5 to 80 mol of an alkylene oxide with 1 mol of C.sub.1 -C.sub.24 -alcohols, C.sub.6 -C.sub.18 -alkylphenols or C.sub.8 -C.sub.24 -alkylamines ande) from 0.4 to 10 mol %, preferably from 0.5 to 8 mol %, of one or more polyols having from 3 to 6 hydroxyl groups.These oligoesters are used as soil release polymers in detergents.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: November 28, 2000
    Assignee: Clariant GmbH
    Inventors: Frank-Peter Lang, Johannes Becherer, Michael Wessling, Alexander Lerch
  • Patent number: 5792880
    Abstract: The present Application relates to a process for the preparation of N-lauroyl-L-glutamic acid di-n-butylamide by reaction of N-lauroyl-L-glutamic acid dimethyl ester with n-butylamine in the presence of a hydrocarbon or hydrocarbon mixture as an auxiliary solvent.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: August 11, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Engelhardt, Manfred Muller, Michael Wessling
  • Patent number: 5726331
    Abstract: The present invention relates to a process for the preparation of dimethyl N-lauroyl-L-glutamate by reaction of N-lauroyl-L-glutamic acid with methanol in the presence of trimethyl orthoformate.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: March 10, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Engelhardt, Manfred Muller, Michael Wessling
  • Patent number: 5684104
    Abstract: Method for avoiding network defects due to unwanted secondary reactions during the polymerization in water-swellable hydrophilic polymers which contain polymers prepared by free radical (co)polymerization of one or more hydrophilic monomers of the formula I ##STR1## wherein R.sup.1 is hydrogen, methyl or ethyl,R.sup.2 is the group --COOR.sup.4, the sulphonyl group, the phosphonyl group, the phosphonyl group-esterified by (C.sub.1 -C.sub.4)-alkanol or a group of the formula ##STR2## R.sup.3 is hydrogen, methyl, ethyl or the carboxyl group, R.sup.4 is hydrogen, amino or hydroxy-(C.sub.1 -C.sub.4)-alkyl andR.sup.5 is the sulphonyl group, the phosphonyl group or the carboxyl group, or grafting (co)polymerization of one or more hydrophilic monomers of the formula I onto a grafting base, using a free radical initiator which forms three or more free radical sites per molecule.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: November 4, 1997
    Assignee: Cassella
    Inventors: Rudiger Funk, Fritz Engelhardt, Ulrich Riegel, Michael Wessling