Patents by Inventor Marcus Schroeder

Marcus Schroeder 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 the production of superabsorbers
    Patent number: 12110351
    Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: October 8, 2024
    Assignee: BASF SE
    Inventors: Kristine Hartnagel, Thomas Gieger, Thomas Daniel, Marcus Schroeder, Michelle Morano, Nathaniel Troy Greene
  • METHOD FOR THE PRODUCTION OF SUPERABSORBERS
    Publication number: 20220235152
    Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Inventors: Kristine Hartnagel, Thomas Gieger, Thomas Daniel, Marcus Schroeder, Michelle Morano, Nathaniel Troy Greene
  • Method for the production of superabsorbers
    Patent number: 11325990
    Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 10, 2022
    Assignee: BASF SE
    Inventors: Kristine Hartnagel, Thomas Gieger, Thomas Daniel, Marcus Schroeder, Michelle Morano, Nathaniel Troy Greene
  • METHOD FOR THE PRODUCTION OF SUPERABSORBERS
    Publication number: 20210301040
    Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
    Type: Application
    Filed: August 1, 2017
    Publication date: September 30, 2021
    Inventors: Kristine Hartnagel, Thomas Gieger, Thomas Daniel, Marcus Schroeder, Michelle Morano, Nathaniel Troy Greene