Patents by Inventor Rudiger Funk

Rudiger Funk 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).

  • Process for producing water-absorbing polymer particles
    Patent number: 8883961
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 11, 2014
    Assignee: BASF SE
    Inventors: Monte Peterson, Filip Mees, John Perry Guentzel, Justin Martin, Dominicus van Esbroeck, Karl J. Possemiers, Leo Van Miert, Oskar Stephan, Rüdiger Funk, Matthias Weismantel
  • PROCESS FOR CONTINUOUSLY PRODUCING WATER-ABSORBING POLYMER PARTICLES
    Publication number: 20140328723
    Abstract: A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant.
    Type: Application
    Filed: June 19, 2014
    Publication date: November 6, 2014
    Applicant: BASF SE
    Inventors: Rüdiger Funk, Thomas Pfeiffer, Jürgen Schröder
  • FLUID-ABSORBENT ARTICLES
    Publication number: 20140302985
    Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
  • METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH A HIGHER PERMEABILITY BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION
    Publication number: 20140302321
    Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 ?m.
    Type: Application
    Filed: April 30, 2014
    Publication date: October 9, 2014
    Applicant: BASF SE
    Inventors: Uwe Stueven, Matthias Weismantel, Wilfried Heide, Marco Krüger, Volker Seidl, Stefan Blei, Dennis Lösch, Rüdiger Funk, Annemarie Hillebrecht
  • Method for grading water-absorbent polymer particles
    Patent number: 8844729
    Abstract: A process for classifying water-absorbing polymer beads, wherein the polymer beads are separated into n particle size fractions by means of at least n screens and n is an integer greater than 1.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 30, 2014
    Assignee: BASF SE
    Inventors: Uwe Stueven, Rüdiger Funk, Matthias Weismantel, Juergen Schroeder, Dominicus van Esbroeck
  • Process for producing water-absorbing polymer particles
    Patent number: 8828323
    Abstract: A process for producing water-absorbing polymer particles, wherein a polymer gel is removed from a polymerization reactor, stored intermediately as a particulate polymer gel in a delay vessel, removed by means of a first conveying device at the lower end of the delay vessel and dried, the intermediately stored particulate polymer gel being conveyed within the delay vessel by means of at least one second conveying device above the first conveying device in the direction of the first conveying device.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 9, 2014
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ann Becker, Leo Van Miert
  • Process for continuously producing water-absorbing polymer particles
    Patent number: 8829135
    Abstract: A process for continuously producing water-absorbing polymer particles, wherein the acrylic acid used to produce the polymer particles has a low purity.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 9, 2014
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Thomas Pfeiffer, Jürgen Schröder
  • Fluid-absorbent articles
    Patent number: 8796174
    Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: August 5, 2014
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
  • Method for producing water-absorbing polymer particles
    Patent number: 8789774
    Abstract: A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is applied by means of a swivel belt to the conveyor belt of a forced-air belt drier, and the swivel belt, proceeding from one end position, is accelerated through a first pivot angle to an angular speed v1, decelerated through a second pivot angle to an angular speed v2 and decelerated through a third pivot angle to the other end position.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: July 29, 2014
    Assignee: BASF SE
    Inventors: Uwe Stueven, Rüdiger Funk, Matthias Weismantel, Dominicus van Esbroeck, Ronny De Kaey
  • Process for continuously producing water-absorbing polymer particles
    Patent number: 8785583
    Abstract: A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 22, 2014
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Thomas Pfeiffer, Jürgen Schröder
  • Process for producing water-absorbing polymer particles
    Patent number: 8765898
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising handling water-absorbing polymer particles in intermediate silos, storage silos and/or big bag filing stations that are connected with vent lines having a mitered joint.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: July 1, 2014
    Assignee: BASF SE
    Inventors: Monte Peterson, Ronny De Kaey, Leo Van Miert, Oskar Stephan, Rüdiger Funk, Matthias Weismantel, Dominicus van Esbroeck, Frans van Dyck
  • Method for producing water-absorbent polymer particles with a higher permeability by polymerizing droplets of a monomer solution
    Patent number: 8748000
    Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 ?m.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: June 10, 2014
    Assignee: BASF SE
    Inventors: Uwe Stueven, Matthias Weismantel, Wilfried Heide, Marco Krüger, Volker Seidl, Stefan Blei, Dennis Loesch, Rüdiger Funk, Annemarie Hillebrecht
  • METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
    Publication number: 20140107305
    Abstract: A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (1), wherein the solid additive and a gas volume flow are fed to the conveying screw (1) by means of an addition channel (2).
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: BASF SE
    Inventors: Rüdiger Funk, Matthias Weismantel, Dominicus van Esbroeck, Filip Mees
  • Fluid-absorbent articles
    Patent number: 8669410
    Abstract: The present invention relates to fluid-absorbent articles, comprising an upper liquid-pervious layer, a lower liquid-impervious layer, a fluid-absorbent core, wherein the fluid-absorbent core comprises a fibrous material and 10 to 95% by weight of spherical fluid-absorbent polymer particles, and an acquisition distribution layer, wherein the acquisition distribution layer comprises a fibrous material and 0 to 20% by weight of spherical fluid-absorbent polymer particles.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: March 11, 2014
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, John Joseph Louden
  • 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
  • PROCESS FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
    Publication number: 20140066582
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Inventors: Monte Peterson, Filip Mees, John Perry Guentzel, Justin Martin, Dominicus van Esbroeck, Karl J. Possemiers, Leo Van Miert, Oskar Stephen, Rüdiger Funk, Mathhias Welsmantel
  • Process for pneumatic conveying of water-absorbing polymer particles
    Patent number: 8651773
    Abstract: A process for pneumatic delivery of water-absorbing polymer particles, the initial gas rate in the delivery being from 1 to 6 m/s and the delivery material loading being from 1 to 100 kg/kg.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: February 18, 2014
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Hermann Josef Feise, Hanno Rüdiger Wolf
  • Method for producing water-absorbing polymer particles
    Patent number: 8633285
    Abstract: A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (1), wherein the solid additive and a gas volume flow are fed to the conveying screw (1) by means of an addition channel (2).
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 21, 2014
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Matthias Weismantel, Dominicus van Esbroeck, Filip Mees
  • Process for Producing Water-Absorbing Polymer Particles in a Polymerization Reactor with At Least Two Axially Parallel Rotating Shafts
    Publication number: 20130338325
    Abstract: A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a polymerization reactor with at least two axially parallel rotating shafts, wherein the polymerization is performed in the presence of an inert gas and under positive pressure.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Monte Peterson, Karl J. Possemiers, Ronny De Kaey, Dominicus van Esbroeck, Rüdiger Funk
  • Method for the production of water-absorbing polymer particles
    Patent number: 8608096
    Abstract: A process for producing water-absorbing polymer particles, comprising classification by means of a tumbler screening machine, wherein the tumbler screening machine used for classification is equipped with at least one ball knock cleaning system and entrained balls are removed outside the tumbler screening machine by means of a capture device.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: December 17, 2013
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Jürgen Schröder, Emil Bitzer