Patents by Inventor Erich Lutz

Erich Lutz 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).

  • Method for producing water-absorbing polymer particles by suspension polymerization
    Patent number: 11203005
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 21, 2021
    Assignee: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter, Anna Kowalski
  • Method for producing super absorber particles
    Patent number: 10857256
    Abstract: A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 ?m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the amount of unneutralized monomer applied with the monomer solution being from 0.5% to 80% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 8, 2020
    Assignee: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz
  • METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION
    Publication number: 20200362123
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 140 to 220° C.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Applicant: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter, Anna Kowalski
  • Method for the agglomeration of superabsorber particles
    Patent number: 10835634
    Abstract: A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 ?m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 17, 2020
    Assignee: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter
  • Method for producing water-absorbing polymer particles by suspension polymerization
    Patent number: 10682435
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization, wherein the polymerization is conducted in the presence of dissolved oxygen.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: June 16, 2020
    Assignee: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Stefan Molter, Erich Lutz
  • METHOD FOR PRODUCING SUPER ABSORBER PARTICLES
    Publication number: 20180126030
    Abstract: A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 ?m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the amount of unneutralized monomer applied with the monomer solution being from 0.5% to 80% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.
    Type: Application
    Filed: March 29, 2016
    Publication date: May 10, 2018
    Applicant: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz
  • Method for the Agglomeration of Superabsorber Particles
    Publication number: 20180126032
    Abstract: A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 ?m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.
    Type: Application
    Filed: March 24, 2016
    Publication date: May 10, 2018
    Applicant: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter
  • METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION
    Publication number: 20180043051
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization, wherein the polymerization is conducted in the presence of dissolved oxygen.
    Type: Application
    Filed: February 17, 2016
    Publication date: February 15, 2018
    Inventors: Tina Mark, Thomas Daniel, Stefan Molter, Erich Lutz
  • METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION
    Publication number: 20180030218
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 140 to 220° C.
    Type: Application
    Filed: February 17, 2016
    Publication date: February 1, 2018
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter, Anna Kowalski
  • METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION
    Publication number: 20170266640
    Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 21, 2017
    Applicant: BASF SE
    Inventors: Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter, Anna Kowalski
  • Polymer for water treatment
    Patent number: 7405263
    Abstract: A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: July 29, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Erich Lutz, Marcus Guzmann, Karl-Heinz Buechner, Gregor Brodt
  • Polymer for water treatment
    Publication number: 20070055022
    Abstract: A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.
    Type: Application
    Filed: May 6, 2004
    Publication date: March 8, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Pia Baum, Erich Lutz, Marcus Guzmann, Karl-Heinz Buchner, Gregor Brodt