Patents by Inventor Rene Callot

Rene Callot 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 superabsorbents
    Patent number: 12059504
    Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt drier by means of an oscillating conveyor belt, the underside of the revolving conveyor belt is freed of adhering polymer gel by means of at least one stripper device, and the underside of the revolving conveyor belt is sprayed with water.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 13, 2024
    Assignee: BASF SE
    Inventors: Rene Callot, Ruediger Funk, Marco Krueger, Thomas Pfeiffer, Karl Possemiers, Juergen Schroeder, Matthias Weismantel
  • METHOD FOR PRODUCING SUPERABSORBENT PARTICLES
    Publication number: 20220089789
    Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt dryer by means of an oscillating conveyor belt and that guide devices are located at the edges of the conveyor belt.
    Type: Application
    Filed: January 13, 2020
    Publication date: March 24, 2022
    Inventors: Rene Callot, Karl Possemiers, Ruediger Funk, Marco Krueger, Matthias Weismantel, Juergen Schroeder
  • METHOD FOR THE PRODUCTION OF SUPERABSORBENTS
    Publication number: 20210338882
    Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt drier by means of an oscillating conveyor belt, the underside of the revolving conveyor belt is freed of adhering polymer gel by means of at least one stripper device, and the underside of the revolving conveyor belt is sprayed with water.
    Type: Application
    Filed: September 17, 2019
    Publication date: November 4, 2021
    Inventors: Rene Callot, Ruediger Funk, Marco Krueger, Thomas Pfeiffer, Karl Possemiers, Juergen Schroeder, Matthias Weismantel
  • Process for producing water-absorbing polymer particles
    Patent number: 9486777
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization, drying the resulting polymer gel on a through circulation belt dryer, crushing the dried polymer gel, pre-grinding, separating of incompletely dried particles with a perforated plate, grinding and classifying the resulting polymer particles.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 8, 2016
    Assignee: BASF SE
    Inventors: Monte Peterson, John Perry Guentzel, Gregory Boykin, Leo Van Miert, Rene Callot, Oskar Stephan, Rüdiger Funk, Matthias Weismantel
  • Process for producing water-absorbing polymer particles
    Patent number: 9382393
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization and drying the resulting polymer gel on a through-circulation belt dryer having at the end of the belt in transport direction a means for guiding the dried polymer gel down towards a means for crushing the dried polymer gel.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: July 5, 2016
    Assignee: BASF SE
    Inventors: Norbert Eugen Voll, Oskar Stephan, Karl J. Possemiers, Matthias Weismantel, Rüdiger Funk, Monte Peterson, Leo Van Miert, Rene Callot
  • PROCESS FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
    Publication number: 20150315343
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization and drying the resulting polymer gel on a through-circulation belt dryer having at the end of the belt in transport direction a means for guiding the dried polymer gel down towards a means for crushing the dried polymer gel.
    Type: Application
    Filed: September 19, 2013
    Publication date: November 5, 2015
    Inventors: Norbert Eugen Voll, Oskar Stephan, Karl J. Possemiers, Matthias Weismantel, Rüdiger Funk, Monte Peterson, Leo Van Miert, Rene Callot
  • PROCESS FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
    Publication number: 20140066584
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization, drying the resulting polymer gel on a through circulation belt dryer, crushing the dried polymer gel, pre-grinding, separating of incompletely dried particles with a perforated plate, grinding and classifying the resulting polymer particles.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: BASF SE
    Inventors: Monte Peterson, John Perry Guentzel, Gregory Boykin, Leo Van Miert, Rene Callot, Oskar Stephan, Rüdiger Funk, Matthias Weismantel