Patents by Inventor Hermann Josef Feise

Hermann Josef Feise 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 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 the pneumatic conveying of water-absorbent polymer particles
    Patent number: 8591152
    Abstract: A process for pneumatic delivery of water-absorbing polymer particles, the compressor used for pneumatic delivery having a steep characteristic and the initial gas rate in the delivery corresponding to a Froude number of from 10 to 18.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: November 26, 2013
    Assignee: BASF SE
    Inventors: Rüdiger Funk, Hanno Rüdiger Wolf, Hermann Josef Feise
  • Method for the production of co-extrudates composed of polystyrene and of a crosslinked polyvinylpyrrolidone with reduced residual styrene monomer content
    Patent number: 8420737
    Abstract: A method for removing residual styrene monomers from co-extrudates comprising polystyrene and water-insoluble, crosslinked polyvinylpyrrolidone, which comprises subjecting an aqueous suspension of the particulate solid co-extrudate to a heat treatment at temperatures of 60 to 99° C., the weight ratio of solid co-extrudate to water in the suspension being 1:1.5 to 1:20, and the concentration of the suspension being kept constant during the treatment.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 16, 2013
    Assignee: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Ates Erk, Hermann Josef Feise, Robert Bayer
  • Method for regenerating a filter aid
    Patent number: 8394279
    Abstract: Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 12, 2013
    Assignee: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Tobias Petsch, Julia Brodersen, Hermann Josef Feise, Ates Erk, Jörg Kreβ, Ralf Mar, Ralf Lachmuth, Robert Bayer
  • Superabsorbents having superior permeability and conveying properties
    Patent number: 8017549
    Abstract: A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: September 13, 2011
    Assignee: BASF SE
    Inventors: Norbert Herfert, Martin Wendker, Hermann Josef Feise, Hanno Rüdiger Wolf, Bill Chiang, Guy Thomas Woodrum
  • Method for regenerating an auxiliary filtering agent
    Patent number: 7993533
    Abstract: Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 9, 2011
    Assignee: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Tobias Petsch, Julia Brodersen, Hermann Josef Feise, Ates Erk, Jörg Kreβ, Ralf Mar, Robert Bayer
  • Process for Metering Superabsorbents
    Publication number: 20100206897
    Abstract: Superabsorbents are metered by a process using a screw conveyor, wherein the superabsorbent is selected, or treated with a cohesion control agent, to have an unconfined yield strength of from 0.75 to 1.5 kPa at consolidation stress of 6 kPa.
    Type: Application
    Filed: September 12, 2008
    Publication date: August 19, 2010
    Applicant: BASF SE
    Inventors: Norbert Herfert, Hermann Josef Feise, Hanno Rüdiger Wolf
  • METHOD FOR REGENERATING A FILTER AID
    Publication number: 20100176069
    Abstract: Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.
    Type: Application
    Filed: March 14, 2008
    Publication date: July 15, 2010
    Applicant: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Tobias Petsch, Julia Brodersen, Hermann Josef Feise, Ates Erk, Jörg Kress, Ralf Mar, Ralf Lachmuth, Robert Bayer
  • Superabsorbents Having Superior Permeability and Conveying Properties
    Publication number: 20100093949
    Abstract: A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34.
    Type: Application
    Filed: November 7, 2007
    Publication date: April 15, 2010
    Applicant: BASF SE
    Inventors: Norbert Herfert, Martin Wendker, Hermann Josef Feise, Hanno Rüdiger Wolf, Bill Chiang, Guy Thomas Woodrum
  • METHOD FOR REGENERATING AN AUXILIARY FILTERING AGENT
    Publication number: 20090291164
    Abstract: Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer; (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.
    Type: Application
    Filed: September 27, 2007
    Publication date: November 26, 2009
    Applicant: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Tobias Petsch, Julia Brodersen, Hermann Josef Feise, Ates Erk, Jorg Kress, Ralf Mar, Robert Bayer
  • METHOD FOR THE PRODUCTION OF CO-EXTRUDATES COMPOSED OF POLYSTYRENE AND OF A CROSSLINKED POLYVINYLPYRROLIDONE WITH REDUCED RESIDUAL STYRENE MONOMER CONTENT
    Publication number: 20090275691
    Abstract: A method for removing residual styrene monomers from co-extrudates comprising polystyrene and water-insoluble, crosslinked polyvinylpyrrolidone, which comprises subjecting an aqueous suspension of the particulate solid co-extrudate to a heat treatment at temperatures of 60 to 99° C., the weight ratio of solid co-extrudate to water in the suspension being 1:1.5 to 1:20, and the concentration of the suspension being kept constant during the treatment.
    Type: Application
    Filed: September 10, 2007
    Publication date: November 5, 2009
    Applicant: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Ates Erk, Hermann Josef Feise, Robert Bayer
  • Method for the Pneumatic Conveying of Water-Absorbent Polymer Particles
    Publication number: 20090060661
    Abstract: A process for pneumatic delivery of water-absorbing polymer particles using curved pipelines, the ratio of radius of curvature to tube diameter being at least 5.
    Type: Application
    Filed: March 2, 2007
    Publication date: March 5, 2009
    Applicant: BASF SE
    Inventors: Hermann Josef Feise, Hanno Rudiger Wolf, Rudiger Funk
  • Process for Pneumatic Conveying of Water-Absorbing Polymer Particles
    Publication number: 20090060660
    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: Application
    Filed: March 6, 2007
    Publication date: March 5, 2009
    Applicant: BASF SE
    Inventors: Rudiger Funk, Hermann Josef` Feise, Hanno Rudiger Wolf
  • Method for the Pneumatic Conveying of Water-Absorbent Polymer Particles
    Publication number: 20090022603
    Abstract: A process for pneumatic delivery of water-absorbing polymer particles, the compressor used for pneumatic delivery having a steep characteristic and the initial gas rate in the delivery corresponding to a Froude number of from 10 to 18.
    Type: Application
    Filed: March 6, 2007
    Publication date: January 22, 2009
    Applicant: BASF SE a German corporation
    Inventors: Hermann Josef Feise, Hanno Rudiger Wolf, Rudiger Funk
  • Process for Obtaining Alkoxides
    Publication number: 20080306312
    Abstract: Alkoxides are isolated by crystallization of an alcohol from a solution in the corresponding alcohol, with the alkoxide being crystallized out at a pressure of at least 3 bar abs. and a temperature of at least 120° C.
    Type: Application
    Filed: December 13, 2006
    Publication date: December 11, 2008
    Applicant: BASF SE
    Inventors: Bernd Eck, Matthias Rauls, Hermann Josef Feise, Thomas Letzelter, Josef Guth