Patents by Inventor Helmut Witteler

Helmut Witteler 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: 10344249
    Abstract: The present invention concerns a method for producing a gel-like polymer composition, in which an [alpha],[beta]-ethylenically unsaturated carboxylic acid is subject to radical polymerization in the presence of at least one polyether component, the gel-like polymer composition obtainable using this method and the use thereof.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: July 9, 2019
    Assignee: BASF SE
    Inventors: Yannick Fuchs, Helmut Witteler, Heike Weber
  • Patent number: 10323215
    Abstract: The present invention relates to a process for preparing a polymer composition, in which an ?,?-ethylenically unsaturated carboxylic acid is subjected to a free-radical polymerization in the presence of at least one polyether component, to the polymer composition obtainable by this process and to the use thereof.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 18, 2019
    Assignee: BASF SE
    Inventors: Yannick Fuchs, Helmut Witteler, Heike Weber, Alejandra Garcia Marcos, Jürgen Detering
  • Patent number: 10167347
    Abstract: The invention relates to a carboxylate ester of polysaccharide characterized in that it possesses ester bonds with trimellitic anhydride and is soluble in water. The polysaccharide is esterified with trimellitic anhydride and the degree of substitution of the polysaccharide lies in the range of from 0.5 to 3. The invention further relates to methods for the manufacture of these polysaccharides esters in organic solvents, in water or in an extruder or a kneader and to their use in fabric and home care formulations.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 1, 2019
    Assignee: BASF SE
    Inventors: Natalia Shabelina, Helmut Witteler, Juergen Detering, Ulrich Schneider, Jessica Neumann
  • Publication number: 20180353924
    Abstract: Provided herein are microcapsules as core-shell-particles, including a polymeric shell, a method of making them, a dispersion of the microcapsules in a liquid medium and a method of using thereof. The microcapsules include a core that contains a hydrophilic component.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 13, 2018
    Inventors: Yannick Fuchs, Helmut Witteler, Matthias Bratz
  • Publication number: 20180343855
    Abstract: Disclosed herein are microcapsules as core-shell-particles, including a polymeric shell, a method of making them, a dispersion of those microcapsules in a liquid medium and use thereof. The microcapsules include a core that contains a hydrophobic component.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 6, 2018
    Inventors: Yannick Fuchs, Helmut Witteler, Matthias Bratz
  • Publication number: 20170360660
    Abstract: The present invention relates to microcapsules comprising a capsule core and a capsule shell wherein the capsule shell comprises a core surrounding layer of a polyvinyl alcohol and an adjacent layer of a polyoxazoline, a process of their production and their use.
    Type: Application
    Filed: December 3, 2015
    Publication date: December 21, 2017
    Inventors: Ewelina BURAKOWSKA-MEISE, Valeria BEM, Roland Hinrich STAFF, Brigitte LINDEMANN, Helmut WITTELER
  • Publication number: 20170145356
    Abstract: The present invention provides a method of manufacturing an automatic dishwashing detergent product, said product being provided as a discrete dosage unit and comprising a continuous, non-aqueous gel phase, comprising manufacturing said gel phase by a method comprising free radical polymerisation of monomer(s) in a non-aqueous reaction mixture to form a polymeric builder; wherein said reaction mixture comprises: at least one non-ionic surfactant which is an optionally end-capped alcohol alkoxylate; and one or more monomers comprising acrylic acid and optionally one or more further ?,?-ethylenically unsaturated acids, wherein no more than 0.1 wt % of the total amount of the monomer(s) are crosslinking monomer(s).
    Type: Application
    Filed: July 1, 2015
    Publication date: May 25, 2017
    Inventors: Pavlinka Roy, Claudia Schmaelzle, Caroline Rigobert, Heike Weber, Helmut Witteler, Yannick Fuchs, Roland Bohn
  • Publication number: 20170114154
    Abstract: The invention relates to a carboxylate ester of polysaccharide characterised in that it possesses ester bonds with trimellitic anhydride and is soluble in water. The polysaccharide is esterified with trimellitic anhydride and the degree of substitution of the polysaccharide lies in the range of from 0.5 to 3. The invention further relates to methods for the manufacture of these polysaccharides esters in organic solvents, in water or in an extruder or a kneader and to their use in fabric and home care formulations.
    Type: Application
    Filed: March 11, 2015
    Publication date: April 27, 2017
    Inventors: Natalia Shabelina, Helmut Witteler, Juergen Detering, Ulrich Schneider, Jessica Neumann
  • Publication number: 20160369209
    Abstract: The present invention relates to a process for preparing a polymer composition, in which an ?,?-ethylenically unsaturated carboxylic acid is subjected to a free-radical polymerization in the presence of at least one polyether component, to the polymer composition obtainable by this process and to the use thereof.
    Type: Application
    Filed: July 2, 2014
    Publication date: December 22, 2016
    Inventors: Yannick FUCHS, Helmut WITTELER, Heike WEBER, Alejandra GARCIA MARCOS, Jürgen DETERING
  • Publication number: 20160369210
    Abstract: The present invention concerns a method for producing a gel-like polymer composition, in which an [alpha],[beta]-ethylenically unsaturated carboxylic acid is subject to radical polymerisation in the presence of at least one polyether component, the gel-like polymer composition obtainable using this method and the use thereof.
    Type: Application
    Filed: July 2, 2014
    Publication date: December 22, 2016
    Applicant: BASF SE
    Inventors: Yannick FUCHS, Helmut WITTELER, Heike WEBER
  • Patent number: 9487845
    Abstract: Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: November 8, 2016
    Assignee: BASF SE
    Inventors: Thomas Heidenfelder, Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert
  • Patent number: 9481742
    Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 1, 2016
    Assignee: BASF SE
    Inventors: Christian Schade, Faissal-Ali El-Toufaili, Aaron Flores-Figueroa, Gledison Fonseca, Michaela Heuβler, Christian Schwede, Helmut Witteler
  • Publication number: 20160152928
    Abstract: The invention relates to the use of a gel-like polymer composition, which is produced by means of a radical polymerization of an [alpha],[beta]-ethylenically unsaturated acid in the presence of at least one polyether component, in formulations for automatic dishwashing (ADW).
    Type: Application
    Filed: July 2, 2014
    Publication date: June 2, 2016
    Applicant: BASF SE
    Inventors: Heike WEBER, Yannick FUCHS, Helmut WITTELER, Roland BOEHN, Ralph RIEGER
  • Publication number: 20160075801
    Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 17, 2016
    Applicant: BASF SE
    Inventors: Christian SCHADE, Faissal-Ali EL-TOUFAILI, Aaron FLORES-FIGUEROA, Gledison FONSECA, Michaela HEUßLER, Christian SCHWEDE, Helmut WITTELER
  • Patent number: 9228148
    Abstract: A method of producing shaped articles made from single-sidedly or double-sidedly galvanized steel sheet, starting from galvanized steel strip, at least one of the steps of the method being a transport operation, and in which, for protection from black-spot corrosion, a corrosion preventive oil is applied which comprises at least one phosphoric acid polyoxyalkylene ester.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 5, 2016
    Assignee: Voestalpine Stahl GmbH
    Inventors: Stephan Hüffer, Helmut Witteler, Achim Feβenbecker, Karl-Heinz Stellnberger, Martin Fleischanderl
  • Patent number: 8986467
    Abstract: A method for passivating metallic surfaces, wherein the surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one surfactant (T) based on alkoxylated alcohols, the pH of the composition being in the range from 0.5 to 5, enables durable protection of the surface.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: March 24, 2015
    Assignee: BASF SE
    Inventors: Guido Vandermeulen, Achim Fessenbecker, Bernd Laubusch, Helmut Witteler, Jürgen Tropsch
  • Patent number: 8927669
    Abstract: Copolymers comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more compounds of the general formula I (c) if appropriate, one or more alkenylphosphonic diesters, (d) if appropriate, one or more other free-radically copolymerizable comonomers, whose variables are defined as follows: R1 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R2 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R3 is selected from hydrogen, phenyl, benzyl, and unbranched and branched C1-C10-alkyl and unbranched and branched hydroxy-C2-C10-alkyl, as free acid or partially or completely neutralized with alkali metal, alkaline earth metal, ammonia or organic amine.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
  • Patent number: 8901066
    Abstract: Branched polyesters with sulfonate groups can be obtained by reacting components A, B, optionally C, and optionally D to yield branched polyesters, then reacting these branched polyesters with hydrogen sulfite. Component A is at least one ?,?-olefinically unsaturated dicarboxylic acid, component B is at least one di- or higher-functional alcohol, optional component C is at least one di- or higher-functional carboxylic acid or hydroxycarboxylic acid without an ?,?-olefinically unsaturated bond, and optional component D is at least one compound of formula CH3(—O—CH2—CH2)n—OH. In reacting the branched polyesters with hydrogen sulfite, a molar amount of hydrogen sulfite is at most 95 mol %, based on an amount of ?,?-olefinically unsaturated dicarboxylic acid.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: December 2, 2014
    Assignee: BASF SE
    Inventors: Monika Haberecht, Juergen Detering, Bernd Bruchmann, Helmut Witteler, Heike Weber, Karl Kolter
  • Publication number: 20140141269
    Abstract: A method for coating a metallic surface by contacting it with an aqueous copolymer dispersion, wherein the aqueous copolymer dispersion comprises an effective amount of organic phosphorus-containing corrosion inhibitors, the copolymers present in the dispersion being constructed from 20 to 95 weight % of monoethylenically unsaturated hydrocarbons and/or hydrocarbons having two conjugated double bonds, from 5 to 80 weight % of monoethylenically unsaturated monomers which contain acid groups, and/or anhydrides or salts thereof. A metallic surface coated with a copolymer, obtainable by methods of this kind, which can also further comprise one or more layers of paint applied one atop another.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: BASF SE
    Inventors: Christian SCHADE, Christian Maeder, Helmut Witteler
  • Patent number: 8697834
    Abstract: The invention relates to a process for the preparation of polyalkylenepolyamines by catalyzed alcohol amination, in which (i) aliphatic aminoalcohols are reacted with one another or (ii) aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a catalyst.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 15, 2014
    Assignee: BASF SE
    Inventors: Thomas Schaub, Boris Buschhaus, Johann-Peter Melder, Rocco Paciello, Stephan Hüffer, Helmut Witteler