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).
-
Patent number: 11535538Abstract: 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: GrantFiled: October 4, 2017Date of Patent: December 27, 2022Assignee: Solenis Technologies, L.P.Inventors: Stephan Nied, Helena Kondardi, Lisa Marie Winzen
-
Publication number: 20210123899Abstract: 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: ApplicationFiled: July 26, 2018Publication date: April 29, 2021Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.Inventors: Winfried SCHELLBACH, Stephan NIED
-
Patent number: 10590010Abstract: 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: GrantFiled: October 27, 2016Date of Patent: March 17, 2020Assignee: SOLENIS TECHNOLOGIES, L.P.Inventors: Sujandi Sujandi, Sophie Maitro-Vogel, Stephan Nied, Heike Glade
-
Publication number: 20190256389Abstract: 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: ApplicationFiled: October 4, 2017Publication date: August 22, 2019Applicant: SOLENIS TECHNOLOGIES, L.P.Inventors: Stephan Nied, Helena Kondari, Lisa Marie Winzen
-
Publication number: 20190094192Abstract: 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: ApplicationFiled: November 18, 2015Publication date: March 28, 2019Applicant: BASF SEInventors: Hans-Peter KAUB, Patrick KELLER, Sujandi SUJANDI, Stephan NIED
-
Publication number: 20180305223Abstract: 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: ApplicationFiled: October 27, 2016Publication date: October 25, 2018Applicant: BASF SEInventors: Sujandi SUJANDI, Sophie MAITRO-VOGEL, Stephan NIED, Heike GLADE
-
Patent number: 9382377Abstract: 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: GrantFiled: August 8, 2012Date of Patent: July 5, 2016Assignee: BASF SEInventors: Jürgen Detering, Torben Gädt, Stephan Nied, Andreas Kempter, Bolette Urtel, Jessica Neumann
-
Patent number: 8993701Abstract: 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: GrantFiled: July 10, 2012Date of Patent: March 31, 2015Assignee: BASF SEInventors: Torben Gädt, Jürgen Detering, Stephan Nied
-
Publication number: 20150027956Abstract: 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: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Applicant: BASF SEInventors: Juergen DETERING, Bolette URTEL, Stephan NIED, Ewald HEINTZ
-
Patent number: 8889033Abstract: 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: GrantFiled: February 1, 2012Date of Patent: November 18, 2014Assignee: BASF SEInventors: Jürgen Detering, Bolette Urtel, Stephan Nied, Ewald Heintz
-
Publication number: 20130180926Abstract: 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: ApplicationFiled: July 10, 2012Publication date: July 18, 2013Applicant: BASF SEInventors: Jürgen DETERING, Torben Gädt, Stephan Nied, Andreas Kempter
-
Publication number: 20130178574Abstract: 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: ApplicationFiled: July 10, 2012Publication date: July 11, 2013Applicant: BASF SEInventors: Torben Gädt, Jürgen DETERING, Stephan NIED
-
Publication number: 20130037491Abstract: 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: ApplicationFiled: August 8, 2012Publication date: February 14, 2013Applicant: BASF SEInventors: Jürgen DETERING, Torben Gädt, Stephan Nied, Andreas Kempter, Bolette Urtel, Jessica Neumann
-
Publication number: 20120199783Abstract: 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: ApplicationFiled: February 1, 2012Publication date: August 9, 2012Applicant: BASF SEInventors: Jürgen DETERING, Bolette URTEL, Stephan NIED, Ewald HEINTZ
-
Patent number: 8002119Abstract: 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: GrantFiled: January 30, 2007Date of Patent: August 23, 2011Assignee: BASF SEInventors: Karl-Heinz Buechner, Stephan Nied, Alexander Goethlich, Frank Klippel, Gunnar Schornick
-
Patent number: 7960455Abstract: 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: GrantFiled: June 14, 2006Date of Patent: June 14, 2011Assignee: BASF AktiengesellschaftInventors: Stephan Nied, Karl-Heinz Buechner, Marcus Guzmann
-
Publication number: 20100166627Abstract: Use of hydrophobins as auxiliaries in the crystallization of solids, in particular the use for producing gypsum from an aqueous phase.Type: ApplicationFiled: May 21, 2008Publication date: July 1, 2010Applicant: BASF SEInventors: Ulf Baus, Thorsten Montag, Stefan Becker, Stephan Nied, Claus Bollschweiler, Thomas Subkowski, Marvin Karos
-
Patent number: 7645345Abstract: 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 detergentsType: GrantFiled: July 29, 2008Date of Patent: January 12, 2010Assignee: BASF AktiengesellschaftInventors: Pia Baum, Kathrin Michl, Franz Weingart, Stephan Nied, Gregor Brodt
-
Publication number: 20090025896Abstract: 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: ApplicationFiled: January 30, 2007Publication date: January 29, 2009Applicant: BASF SEInventors: Karl-Heinz Büchner, Stephan Nied, Alexander Gothlich, Frank Klippel, Gunnar Schornick
-
Publication number: 20090020728Abstract: 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: ApplicationFiled: January 31, 2007Publication date: January 22, 2009Applicant: BASF SEInventors: Karl-Heinz Buchner, Stephan Nied, Frank Klippel, Alexander Gothlich, Gunnar Schornick