Patents by Inventor Ronny De Kaey

Ronny De Kaey 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).

  • Polymerization process
    Patent number: 7947794
    Abstract: The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 24, 2011
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Method for the Continuous Thermal Secondary Surface Cross-Linking of Water-Absorbing Polymer Particles
    Publication number: 20110098416
    Abstract: A process for continuous thermal postcrosslinking of water-absorbing polymer particles, wherein the postcrosslinker is applied to the water-absorbing polymer particles by means of suitable nozzles and the nozzles are exchanged or cleaned via the interior of a glovebox adjoining the plant section comprising the nozzle.
    Type: Application
    Filed: June 10, 2009
    Publication date: April 28, 2011
    Inventors: Oskar Stephan, Karl J. Possemiers, Ann Becker, Leo Van Miert, Ronny De Kaey
  • Polymerization process
    Patent number: 7915355
    Abstract: The present invention relates to a process for continuously preparing water-absorbing polymers by mixing a monomer solution with at least one crosslinker and polymerizing the resulting mixture, wherein the residence time of the mixture between the addition of the at least one crosslinker and the entry into the polymerization reactor is less than 180 seconds, and also to an apparatus for performing the process.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 29, 2011
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Method for Manufacturing Water-Absorbing Polymer Particles with a Low Centrifuge Retention Capacity
    Publication number: 20110015362
    Abstract: A process for producing water-absorbing polymer particles with a low centrifuge retention capacity by polymerizing in a continuous kneading reactor under an inert gas volume flow of at most 10 m3/h per m3 of reactor volume.
    Type: Application
    Filed: March 16, 2009
    Publication date: January 20, 2011
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ronny De Kaey, Karl J. Possemiers
  • Neutralization Process
    Publication number: 20090221746
    Abstract: The invention relates to a neutralization process in which at least one ethylenically unsaturated carboxylic acid is preneutralized at least partly with a base, wherein the preneutralized solution is divided into at least two part-solutions and at least one part-solution is aftertreated so as to form part-solutions with different degree of neutralization and/or solids content, and also to an apparatus for carrying out the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: September 3, 2009
    Applicant: BASF SE a German corporation
    Inventors: Michael de Marco, Matthias Weismantel, Karl J. Possemiers, Filip Mees, Ronny De Kaey
  • Polymerization Process
    Publication number: 20080275195
    Abstract: The present invention relates to a process for continuously preparing water-absorbing polymers by mixing a monomer solution with at least one crosslinker and polymerizing the resulting mixture, wherein the residence time of the mixture between the addition of the at least one crosslinker and the entry into the polymerization reactor is less than 180 seconds, and also to an apparatus for performing the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: November 6, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Neutralization Process
    Publication number: 20080242816
    Abstract: The invention relates to a neutralization process in which at least one ethylenically unsaturated carboxylic acid is neutralized at least partly with a base and at least one stream of the neutralization is determined continuously, and also to an apparatus for carrying out the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: October 2, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Louis Claessens, Karl J. Possemiers, Ronny De Kaey, Rudiger Funk
  • Polymerization Process
    Publication number: 20080221282
    Abstract: The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: September 11, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Polymerization Process
    Publication number: 20080200623
    Abstract: The invention relates to a process for preparing water-absorbing polymer particles, comprising the inertization of monomer solutions, wherein the monomer solution, based on the dissolved monomer, comprises from 0.001 to 0.016% by weight of at least one polymerization inhibitor and at least 50% by volume of the inert gas used to inertize the monomer solution is transferred into the polymerization reactor together with the inertized monomer solution, and also to apparatus for performing the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: August 21, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Rudiger Funk, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Neutralization Process
    Publication number: 20080194863
    Abstract: The invention relates to a continuous neutralization process in which at least one ethylenically unsaturated carboxylic acid is neutralized at least partly with a base and the temperature of the neutralized solution is less than 70° C., and also to an apparatus for carrying out the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: August 14, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey