Patents by Inventor Dirk Fischer

Dirk Fischer 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: 10836951
    Abstract: The invention relates to a method for producing water-soluble or water-swellable polymers containing acryloyldimethyltaurate, neutral monomers, and monomers with carboxylate groups. The monomers undergo free radical polymerisation in precipitation in a polar solvent or solvent mixture, providing that an additional polar organic solvent is contained if the polar solvent contains 2-methyl-2-propanol, a ketone or both.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: November 17, 2020
    Assignee: Clariant International Ltd.
    Inventors: Dirk Fischer, Christoph Kayser, Claudia Diemel, Katharina Berz
  • Publication number: 20200270506
    Abstract: This invention relates to water-soluble or water-swellable polymers, containing a) 25-35 mol. % of one or more recurrent structural units of formula (1), where R1 and R2 represent hydrogen, methyl or ethyl, A represents a linear or branched C1-C12-alkylene, and Q+stands for NH4+, Li+, Na+, K+, ½ Ca++, ½ Mg++, ½ Zn++, ? Al+++, or organic ammonium ions of the formula [HNR5R6R7]+, b) 3 to 8 mol. % of one or more recurrent structural units of formula (2), where R1 represents hydrogen, methyl, or ethyl, X+stands for H+, NH4+, Li+, Na+, K+, ½ Ca++, ½ Mg++, ½ Zn++, ? Al+++, or organic ammonium ions of the formula [HNR5R6R7]+, B is a linear or branched alkylene group with 1 to 6 carbon atoms, and n is a whole number between 0 and 5, and c) 57 to 72 mol. % of a (meth)acrylamide.
    Type: Application
    Filed: May 13, 2020
    Publication date: August 27, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Claudia DIEMEL, Jürgen TONHAUSER, Michael SCHÄFER
  • Publication number: 20200095356
    Abstract: The present invention relates to a polymer comprising: (a) from 90 mol-% to 99.9 mol-%, of repeating units according to Formula (1) wherein at least 10 wt.-% of the repeating units according to Formula (1) comprise from 28 wt.-% to 100 wt.-% bio-based carbon content, relative to the total mass of carbon in the repeating unit according to Formula (1), measured according to standard ASTM D6866-12, Method B; and (b) from 0.01 mol-% to 10 mol-% of crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 26, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Gundula STARKULLA
  • Publication number: 20200078287
    Abstract: The present invention relates to the use of a polymer in a cosmetic, dermatological or pharmaceutical composition, wherein the polymer is crosslinked or non-crosslinked, characterized in that the polymer comprises at least 9.49 mol-% of repeating units (a) according to Formula (1) wherein at least 10 wt.-%, preferably at least 20 wt.-% of the repeating units according to Formula (1) comprise from 28 wt.-% to 100 wt.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 12, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Gundula STARKULLA
  • Publication number: 20200017619
    Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 40 mol-% to 99.9 mol-% repeating units according to Formula (1) (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; (c) from 0.01 mol-% to 88.51 mol-% of neutral structural units; (d) from 1.98 mol-% to 20 mol-% of anionic structural units, wherein the repeating anionic structural units result from the incorporation of a monomer comprising at least one carboxylate anion, and wherein the repeating anionic structural units are different from units (a); wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.
    Type: Application
    Filed: December 6, 2017
    Publication date: January 16, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Katharina BERZ, Gundula STARKULLA
  • Publication number: 20200017618
    Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 40 mol-% to 99 mol-% of repeating units according to Formula (1) (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; (c) from 0.99 mol-% to 59.99 mol-% of repeating neutral structural units; wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.
    Type: Application
    Filed: December 6, 2017
    Publication date: January 16, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Katharina BERZ, Gundula STARKULLA
  • Publication number: 20200009041
    Abstract: The present invention relates to a polymer comprising: (a) from 9.49 mol-% to 98 mol-% repeating units according to Formula (1) wherein at least 10 wt.-% of the repeating units according to Formula (1) comprise from 28 wt.-% to 100 wt.-% bio-based carbon content, relative to the total mass of carbon in the repeating unit according to Formula (1), measured according to standard ASTM D6866-12, Method B; (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units; (c) from 0.01 mol-% to 88.52 mol-% of repeating neutral structural units; (d) from 1.98 mol-% to 20 mol-% of repeating anionic structural units, wherein the repeating anionic structural units result from the incorporation of a monomer comprising at least one carboxylate anion, and wherein the repeating anionic structural units are different from units (a).
    Type: Application
    Filed: December 4, 2017
    Publication date: January 9, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Gundula STARKULLA
  • Publication number: 20200010598
    Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 90 mol-% to 99.9 mol-%, preferably 95 mol-% to 99.5 mol-% of repeating units according to Formula (1) (b) from 0.01 mol-% to 10 mol-%, preferably to 5 mol-%, more preferably to 3 mol-% of crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; characterised in that the components (i) and (ii) are polymerised by radical precipitation polymerisation in a polar solvent.
    Type: Application
    Filed: December 6, 2017
    Publication date: January 9, 2020
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Katharina BERZ, Gundula STARKULLA
  • Publication number: 20190374490
    Abstract: The invention relates to a compound for use in a method of treatment or prevention of migraine and/or symptoms thereof. The compound is selected from beta-hydroxybutyric acid (?HB) or a pharmaceutically acceptable salt thereof, acetoacetate (AcAc) or a pharmaceutically acceptable salt thereof, a metabolic precursor of ?HB or AcAc 1,3-butanediol and a compound comprising an acetoacetyl- or 3-hydroxybutyrate moiety. The invention further relates to a pharmaceutical composition comprising ?HB, AcAc or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 20, 2017
    Publication date: December 12, 2019
    Inventors: Elena GROSS, Dirk FISCHER
  • Publication number: 20190359735
    Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer selected from the group consisting of xanthan gum, carrageenan, guar gum, chitosan, alginate and combinations thereof; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising up to 100 mol-% repeating units according to Formula (1a): wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.
    Type: Application
    Filed: December 6, 2017
    Publication date: November 28, 2019
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Katharina BERZ, Gundula STARKULLA
  • Publication number: 20190338060
    Abstract: The present invention relates to a polymer comprising: (a) from 40 mol-% to 99 mol-%, of repeating units according to Formula (1) wherein at least 10 wt.-% of the repeating units comprises from 28 wt.-% to 100 wt.-% bio-based carbon content, relative to the total mass of carbon in the repeating unit according to Formula (1), measured according to standard ASTM D6866-12, Method B; (b) from 0.01 mol-% to 5 mol-% of crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; and (c) from 0.99 mol-% to 59.99 mol-% of repeating neutral structural units wherein at least 10% of the neutral structural units comprises from 0 wt.-% to 100 wt.-% bio-based carbon content, relative to the total mass of carbon in the repeating unit, measured according to standard ASTM D6866-12, Method B.
    Type: Application
    Filed: December 4, 2017
    Publication date: November 7, 2019
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Gundula STARKULLA
  • Publication number: 20190241509
    Abstract: The present invention relates to a compound according to Formula (3), wherein the compound comprises from 28 wt. % to 100 wt. % bio-based carbon content, relative to the total mass of carbon in the compound, measured according to standard ASTM D6866-12, Method B; and wherein X+ is a proton. The present invention also relates to a polymer obtained by polymerising at least one of said compound, in addition to processes and uses related thereto.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 8, 2019
    Applicant: Clariant International Ltd.
    Inventors: Christoph KAYSER, Gundula STARKULLA, Dirk FISCHER, Paul KAUFMANN, Michael SCHÄFER, Katharina GÖTZ
  • Patent number: 10351802
    Abstract: The invention relates to liquid laundry detergent compositions comprising a) one or more polyesters comprising two or more of the repeating structural unit (a1), one or more of the repeating structural unit (a2) and either one or two of the terminal group (a3), wherein G1 is one or more of (OCnH2n) with n being a number of from 2 to 10, R1 is a C1-30 alkyl, p is based on a molar average, a number of from 0 to 60, q is based on a molar average, a number of from 0 to 50, whereby the (OC3H6)— and (OC2H4)— groups of the terminal group (a3) may be arranged blockwise, alternating, periodically and/or statistically and wherein the connections of the groups (OC3H6)— and (OC2H4)— to R1— and —NH are free to vary, adjacent structural units (a1) are connected by the structural unit (a2), in the case that only one terminal group (a3) is present in the polymer, the other terminal group is selected from the group consisting of OH, OCH3, and G1OH, and both terminal groups may only be linked to the structural unit (a1), and b
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: July 16, 2019
    Assignee: Clariant International Ltd.
    Inventors: Carsten Cohrs, Dirk Fischer, Henricus Peerlings, Kevin Mutch
  • Patent number: 10240107
    Abstract: The invention relates to liquid laundry detergent compositions comprising a) one or more polyesters comprising one or more of the repeating structural unit (a1) and one or more of the repeating structural unit (a2) wherein G1 is one or more of (CnH2nO) with n being a number of from 2 to 10, R1 is H or COR2, R2 is X—(C3H6O)p—(C2H4O)q—Y wherein X is NH or O, Y is a C1-30 alkyl, the (C3H6O)— and (C2H4O)-groups may be arranged blockwise, alternating, periodically and/or statistically and wherein the connections of the groups (C3H6O)— and (C2H4O)— to X— and —Y are free to vary, or O-G1-H, p is based on a molar average, a number of from 0 to 60, q is based on a molar average, a number of from 1 to 300, and b) one or more surfactants.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: March 26, 2019
    Assignee: Clariant International Ltd.
    Inventors: Carsten Cohrs, Dirk Fischer, Henricus Peerlings, Kevin Mutch
  • Publication number: 20180281956
    Abstract: An overhead stowage compartment of a passenger aircraft includes a carrier and a pivoting part being pivotable about a pivot axis and rotatable in a pivoting range at least between an open position and a closing position. A resetting device brings about a closing force in the direction of the closing position at a gripping point of the pivoting part. The closing force is greater than and opposed to the gravitational force, which is effective at the gripping point, by using the unloaded pivoting part. The stowage compartment has a holding device through the use of which the pivoting part can be held at the open position.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventor: DIRK FISCHER
  • Publication number: 20180171207
    Abstract: This invention relates to water-soluble or water-swellable polymers, containing a) 25-35 mol. % of one or more recurrent structural units of formula (1), where R1 and R2 represent hydrogen, methyl or ethyl, A represents a linear or branched C1-C12-alkylene, and Q+ stands for H+, NH4+, Li+, Na+, K+, ½Ca++, ½Mg++, ½Zn++, ?Al+++, or organic ammonium ions of the formula [HNR5R6R7]+, b) 3 to 8 mol. % of one or more recurrent structural units of formula (2), where R1 represents hydrogen, methyl, or ethyl, X+ stands for H+, NH4+, Li+, Na+, K+, ½Ca++, ½Mg++, ½Zn++, ?Al+++, or organic ammonium ions of the formula [HNR5R6R7]+, B is a linear or branched alkylene group with 1 to 6 carbon atoms, and n is a whole number between 0 and 5, and c) 57 to 72 mol. % of a (meth)acrylamide.
    Type: Application
    Filed: May 31, 2016
    Publication date: June 21, 2018
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Claudia DIEMEL, Jürgen TONHAUSER, Michael SCHÄFER
  • Publication number: 20180171208
    Abstract: The invention relates to a method for producing water-soluble or water-swellable polymers containing acryloyldimethyltaurate, neutral monomers, and monomers with carboxylate groups. The monomers undergo free radical polymerisation in precipitation in a polar solvent or solvent mixture, providing that an additional polar organic solvent is contained if the polar solvent contains 2-methyl-2-propanol, a ketone or both.
    Type: Application
    Filed: May 31, 2016
    Publication date: June 21, 2018
    Applicant: Clariant International Ltd.
    Inventors: Dirk FISCHER, Christoph KAYSER, Claudia DIEMEL, Katharina BERZ
  • Publication number: 20180155478
    Abstract: The invention relates to a method for producing water-soluble or water-swellable polymers, containing a) 5 to 98 mol. %, preferably between 20 and 80 mol. % of one or more recurrent structural units of formula (1), where R1, R2 and R3 represent hydrogen, methyl or ethyl, Y represents a chemical bond, O, CH2, C(CH3)H, C(O)NR2, A represents a chemical bond, O, arylene, phenylene, linear or branched C1-C12-alkylene, a linear mono-hydroxyalkylene group with 2 to 6 carbon atoms or a linear or branched di-hydroxyalkylene group with 3 to 6 carbon atoms, D stands for S(O), POH, POR3 or PO-Q+, Q+ stands for H+, Li+, Na+, K+, 1/2 Ca++, 1/2 Mg++, 1/2 Zn++, 1/3 Al+++, 1/4 Zr++++ or for mixtures of these ions, and b) 2 to 95 mol. %, preferably 20 to 80 mol.
    Type: Application
    Filed: May 31, 2016
    Publication date: June 7, 2018
    Applicant: Clariant International Ltd.
    Inventors: Christoph KAYSER, Dirk FISCHER, Claudia DIEMEL, Katharina BERZ
  • Patent number: 9834635
    Abstract: Water-soluble or water-swellable polymers are described, containing a) 20.0 to 98.99 mole percent of one or more independently recurring structural units of the formula (1) and b) 1.0 to 79.99 mole percent of one or more independently recurring structural units of the formula (2), and c) 0.01 to 8.0 mole percent of one or more independently recurring cross-linking structural units, which are obtained from one or more monomers having at least two olefinic double bonds. The polymers are suitable, for example, as thickeners or yield point formers, in particular in cosmetic, dermatological or pharmaceutical compositions.
    Type: Grant
    Filed: March 20, 2010
    Date of Patent: December 5, 2017
    Assignee: Clariant International Ltd.
    Inventors: Peter Klug, Dirk Fischer, Thomas Lindner, Matthias Kunze, Wiebke Moeller, Carina Mildner, Sebastiano Lo Vasco
  • Publication number: 20170327773
    Abstract: The invention relates to liquid laundry detergent compositions comprising a) one or more polyesters comprising two or more of the repeating structural unit (a1), one or more of the repeating structural unit (a2) and either one or two of the terminal group (a3), wherein G1 is one or more of (OCnH2n) with n being a number of from 2 to 10, R1 is a C1-30 alkyl, p is based on a molar average, a number of from 0 to 60, q is based on a molar average, a number of from 0 to 50, whereby the (OC3H6)— and (OC2H4)— groups of the terminal group (a3) may be arranged blockwise, alternating, periodically and/or statistically and wherein the connections of the groups (OC3H6)— and (OC2H4)— to R1— and —NH are free to vary, adjacent structural units (a1) are connected by the structural unit (a2), in the case that only one terminal group (a3) is present in the polymer, the other terminal group is selected from the group consisting of OH, OCH3, and G1OH, and both terminal groups may only be linked to the structural unit (a1), and b
    Type: Application
    Filed: November 10, 2015
    Publication date: November 16, 2017
    Applicant: Clariant International Ltd.
    Inventors: Carsten COHRS, Dirk FISCHER, Henricus PEERLINGS, Kevin MUTCH