Patents by Inventor Elisabeth Lacker

Elisabeth Lacker 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).

  • Heat-treatment of water-absorbing polymeric particles in a fluidized bed at a fast heat-up rate
    Patent number: 10429128
    Abstract: The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 1, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Herbert Gartner, Marc Hager, Harald Plochinger, Sabine Auernig, Hans-Peter Kohler, Elisabeth Lacker
  • HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED
    Publication number: 20150105527
    Abstract: The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature in the range of from 100 to 250° C. in a fluidized bed dryer under specifically adapted apparatus and method conditions, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.
    Type: Application
    Filed: December 18, 2012
    Publication date: April 16, 2015
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Herbert Gartner, Marc Hager, Harald Plochinger, Sabine Auernig, Hans-Peter Kohler, Elisabeth Lacker
  • HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED AT A FAST HEAT-UP RATE
    Publication number: 20140345154
    Abstract: The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 27, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Herbert Gartner, Marc Hager, Harald Plochinger, Sabine Auernig, Hans-Peter Kohler, Elisabeth Lacker