Patents by Inventor Heike Herr

Heike Herr 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).

  • High internal phase polyelectrolyte emulsions for the manufacture of superabsorbent polymers and superabsorbent polymers made therefrom
    Patent number: 6916864
    Abstract: The present invention refers to a high internal phase polyelectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyelectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: July 12, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Herbert A. Gartner, Steven W. Mork, Heike Herr, Reed A. Shick, John Klier, Christopher J. Tucker
  • Manufacture of superabsorbents in high internal phase emulsions
    Patent number: 6835783
    Abstract: The present invention refers to a high internal phase polyclectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyclectrolyte. The present invention also refers to a process for preparing such emulsions and for inverting these emulsions so as to form films or other patterns of the superabsorbent polymer. Absorbent structures containing SAP films or other patterns prepared by the present invention are also contemplated.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: December 28, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Herbert A. Gartner, Steven W. Mork, Heike Herr, Reed A. Shick, John Klier, Christopher J. Tucker
  • High internal phase polyelectrolyte emulsions for the manufacture of superabsorbent polymers and superabsorbent polymers made therefrom
    Publication number: 20040214961
    Abstract: The present invention refers to a high internal phase polyelectrolyte emulsions which are useful for the manufacture of superabsorbent polymers having two phases: i) a continuous oil phase and the ii) a dispersed aqueous phase containing the aqueous monomer solution prior to polymerization and the polyelectrolyte in water-soluble, or water-swellable or very slightly crosslinked form after polymerization, wherein the polymerization occurs in the dispersed aqueous phase and wherein the dispersed aqueous phase contains a high concentration of polyelectrolyte.
    Type: Application
    Filed: May 18, 2004
    Publication date: October 28, 2004
    Inventors: Herbert A. Gartner, Steven W. Mork, Heike Herr, Reed A. Shick, John Klier, Christopher J. Tucker