Patents by Inventor Stephan Nied

Stephan Nied 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: 20210123899
    Abstract: The present invention relates to a method for determining a concentration of a scale inhibitor in a salt water comprising an analysis with a calcium/magnesium ionselective electrode of a dialyzed first sample of the salt water, and a dialyzed second sample of the salt water which was supplemented with a known concentration of the scale inhibitor. The invention further relates to a method for inhibiting incrustation in a plant which contains a salt water comprising the steps of adding a scale inhibitor to the salt water at a desired concentration, determining the actual concentration of the scale inhibitor in the salt water as above, and adding further scale inhibitor to the salt water to adjust the desired concentration.
    Type: Application
    Filed: July 26, 2018
    Publication date: April 29, 2021
    Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.
    Inventors: Winfried SCHELLBACH, Stephan NIED
  • Patent number: 10590010
    Abstract: Processes for the separation of water from a mixture of water with other components, comprising the following steps: A) providing feed material FM comprising water and at least one a nonionic surfactant S in an amount of 0.1 to 1000 ppm by weight based on the feed material FM, B) subjecting said feed material FM to a distillation step using a falling film evaporator.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: March 17, 2020
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Sujandi Sujandi, Sophie Maitro-Vogel, Stephan Nied, Heike Glade
  • Publication number: 20190256389
    Abstract: Formulation F comprising A) 50 to 90 parts by weight of at least one block copolymer P of ethyleneoxide and propylene oxide, B) 0.5 to 10 parts by weight of at least one salt of an alkyl sulfate S, C) 0.05 to 0.5 parts by weight of a composition C comprising C1) 5 to 10 parts by weight of at least one polydimethylsiloxane bearing only terminal alkyl groups, C2) 1 to 3 parts by weight of at least one polydimethylsiloxane bearing at least alkoxylated hydroxy group, C3) at least one solvent, wherein said formulation F is an aqueous formulation.
    Type: Application
    Filed: October 4, 2017
    Publication date: August 22, 2019
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Stephan Nied, Helena Kondari, Lisa Marie Winzen
  • Publication number: 20190094192
    Abstract: The present invention relates to a method for the determination of a concentration (C) of a polyacrylic acid (PAA) in an aqueous medium (AM) wherein the determination is performed photometrically in the presence of a dye (I). The present invention furthermore, relates to a method for the determination of a concentration (C) of a polyacrylic acid (PAA) in an aqueous medium (AM) wherein at least two different transmittance values are measured using at least two different wavelengths and wherein the at least two different transmittance values are analyzed to determine the concentration (C) of the polyacrylic acid (PAA). The present invention also relates to the use of a dye (I) for the determination of the concentration (C) of a polyacrylic acid (PAA).
    Type: Application
    Filed: November 18, 2015
    Publication date: March 28, 2019
    Applicant: BASF SE
    Inventors: Hans-Peter KAUB, Patrick KELLER, Sujandi SUJANDI, Stephan NIED
  • Publication number: 20180305223
    Abstract: Processes for the separation of water from a mixture of water with other components, comprising the following steps: A) providing feed material FM comprising water and at least one a nonionic surfactant S in an amount of 0.1 to 1000 ppm by weight based on the feed material FM, B) subjecting said feed material FM to a distillation step using a falling film evaporator.
    Type: Application
    Filed: October 27, 2016
    Publication date: October 25, 2018
    Applicant: BASF SE
    Inventors: Sujandi SUJANDI, Sophie MAITRO-VOGEL, Stephan NIED, Heike GLADE
  • Patent number: 9382377
    Abstract: A polymer mixture in solid or aqueous form includes a content of from 5 to 95% by weight of a first polymer and a content of from 5 to 95% by weight of a second polymer. The first polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol. The second polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol. The polymer mixture can inhibit precipitation and sedimentation of calcium salts and magnesium salts in water-bearing systems.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: July 5, 2016
    Assignee: BASF SE
    Inventors: Jürgen Detering, Torben Gädt, Stephan Nied, Andreas Kempter, Bolette Urtel, Jessica Neumann
  • Patent number: 8993701
    Abstract: The invention relates to a copolymer of (a) 5 to 40% by weight of isoprenol, (b) 5 to 93% by weight of at least one monoethylenically unsaturated C3 to C8 monocarboxylic acid, an anhydride or salt of same, (c) 2 to 90% by weight of one or more sulfonic acid group-comprising monomers.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 31, 2015
    Assignee: BASF SE
    Inventors: Torben Gädt, Jürgen Detering, Stephan Nied
  • Publication number: 20150027956
    Abstract: The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein (i) water and optionally one or more ethylenically unsaturated comonomers are initially charged, and (ii) acrylic acid in acidic, unneutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous peroxodisulfate solution and aqueous hypophosphite solution are added continuously, and (iii) a base is added on completion of the acrylic acid feed to the aqueous solution, wherein the comonomer content does not exceed 30% by weight, based on total monomer content.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Applicant: BASF SE
    Inventors: Juergen DETERING, Bolette URTEL, Stephan NIED, Ewald HEINTZ
  • Patent number: 8889033
    Abstract: The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein (i) water and optionally one or more ethylenically unsaturated comonomers are initially charged, and (ii) acrylic acid in acidic, unneutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous peroxodisulfate solution and aqueous hypophosphite solution are added continuously, and (iii) a base is added on completion of the acrylic acid feed to the aqueous solution, wherein the comonomer content does not exceed 30% by weight, based on total monomer content.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: November 18, 2014
    Assignee: BASF SE
    Inventors: Jürgen Detering, Bolette Urtel, Stephan Nied, Ewald Heintz
  • Publication number: 20130180926
    Abstract: The invention relates to a process for preparing maleic acid-isoprenol copolymers from a) 30% to 80% by weight of maleic acid, b) 5% to 60% by weight of isoprenol, c) 0% to 30% by weight of one or more further ethylenically unsaturated monomers, which comprises polymerizing maleic acid, isoprenol and optionally the further ethylenically unsaturated monomer in the presence of a redox initiator and of a chain transfer agent at a temperature in the range from 10 to 80° C.
    Type: Application
    Filed: July 10, 2012
    Publication date: July 18, 2013
    Applicant: BASF SE
    Inventors: Jürgen DETERING, Torben Gädt, Stephan Nied, Andreas Kempter
  • Publication number: 20130178574
    Abstract: The invention relates to a copolymer of (a) 5 to 40% by weight of isoprenol, (b) 5 to 93% by weight of at least one monoethylenically unsaturated C3 to C8 monocarboxylic acid, an anhydride or salt of same, (c) 2 to 90% by weight of one or more sulfonic acid group-comprising monomers.
    Type: Application
    Filed: July 10, 2012
    Publication date: July 11, 2013
    Applicant: BASF SE
    Inventors: Torben Gädt, Jürgen DETERING, Stephan NIED
  • Publication number: 20130037491
    Abstract: A polymer mixture in solid or aqueous form includes a content of from 5 to 95% by weight of a first polymer and a content of from 5 to 95% by weight of a second polymer. The first polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol. The second polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol. The polymer mixture can inhibit precipitation and sedimentation of calcium salts and magnesium salts in water-bearing systems.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: BASF SE
    Inventors: Jürgen DETERING, Torben Gädt, Stephan Nied, Andreas Kempter, Bolette Urtel, Jessica Neumann
  • Publication number: 20120199783
    Abstract: The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein (i) water and optionally one or more ethylenically unsaturated comonomers are initially charged, and (ii) acrylic acid in acidic, unneutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous peroxodisulfate solution and aqueous hypophosphite solution are added continuously, and (iii) a base is added on completion of the acrylic acid feed to the aqueous solution, wherein the comonomer content does not exceed 30% by weight, based on total monomer content.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 9, 2012
    Applicant: BASF SE
    Inventors: Jürgen DETERING, Bolette URTEL, Stephan NIED, Ewald HEINTZ
  • Patent number: 8002119
    Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: August 23, 2011
    Assignee: BASF SE
    Inventors: Karl-Heinz Buechner, Stephan Nied, Alexander Goethlich, Frank Klippel, Gunnar Schornick
  • Patent number: 7960455
    Abstract: Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 14, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Nied, Karl-Heinz Buechner, Marcus Guzmann
  • Publication number: 20100166627
    Abstract: Use of hydrophobins as auxiliaries in the crystallization of solids, in particular the use for producing gypsum from an aqueous phase.
    Type: Application
    Filed: May 21, 2008
    Publication date: July 1, 2010
    Applicant: BASF SE
    Inventors: Ulf Baus, Thorsten Montag, Stefan Becker, Stephan Nied, Claus Bollschweiler, Thomas Subkowski, Marvin Karos
  • Patent number: 7645345
    Abstract: Use of copolymers containing sulfonic acid groups which comprise (a) 30 to 95 mol % of at least one monoethylenically unsaturated carboxylic acid, one monoethylenically unsaturated carboxylic ester or one water-soluble salt of a monoethylenically unsaturated carboxylic acid, (b) 3 to 35 mol % of at least one monomer containing sulfonic acid groups of the formula I in which the variables have the following meanings: R is hydrogen or methyl; X is a chemical bond or —COO—R1—; R1 is unbranched or branched C1-C4-alkylene; M is hydrogen, alkali metal or ammonium, and (c) 2 to 35 mol % of at least one nonionic monomer of the formula II in which the variables have the following meanings: R2 is hydrogen or methyl; R3 is a chemical bond or unbranched or branched C1-C6-alkylene; R4 are identical or different unbranched or branched C2-C4-alkylene radicals; R5 is unbranched or branched C1-C6-alkyl, C5-C8-cycloalkyl or aryl; n is 3 to 50, in random or block copolymerized form, as additive for detergents
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: January 12, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Kathrin Michl, Franz Weingart, Stephan Nied, Gregor Brodt
  • Publication number: 20090025896
    Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used.
    Type: Application
    Filed: January 30, 2007
    Publication date: January 29, 2009
    Applicant: BASF SE
    Inventors: Karl-Heinz Büchner, Stephan Nied, Alexander Gothlich, Frank Klippel, Gunnar Schornick
  • Publication number: 20090020728
    Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of greater than 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and optionally other ethylenically unsaturated comonomers, the quantitative figures being respectively based on the total amount of all monomers used.
    Type: Application
    Filed: January 31, 2007
    Publication date: January 22, 2009
    Applicant: BASF SE
    Inventors: Karl-Heinz Buchner, Stephan Nied, Frank Klippel, Alexander Gothlich, Gunnar Schornick
  • Publication number: 20080281053
    Abstract: Use of copolymers containing sulfonic acid groups which comprise (a) 30 to 95 mol % of at least one monoethylenically unsaturated carboxylic acid, one monoethylenically unsaturated carboxylic ester or one water-soluble salt of a monoethylenically unsaturated carboxylic acid, (b) 3 to 35 mol % of at least one monomer containing sulfonic acid groups of the formula I in which the variables have the following meanings: R is hydrogen or methyl; X is a chemical bond or —COO—R1—; R1 is unbranched or branched C1-C4-alkylene; M is hydrogen, alkali metal or ammonium, and (c) 2 to 35 mol % of at least one nonionic monomer of the formula II in which the variables have the following meanings: R2 is hydrogen or methyl; R3 is a chemical bond or unbranched or branched C1-C6-alkylene; R4 are identical or different unbranched or branched C2-C4-alkylene radicals; R5 is unbranched or branched C1-C6-alkyl, C5-C8-cycloalkyl or aryl; n is 3 to 50, in random or block copolymerized form, as additive for detergents
    Type: Application
    Filed: July 29, 2008
    Publication date: November 13, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Pia Baum, Kathrin Michl, Franz Weingart, Stephan Nied, Gregor Brodt