Patents by Inventor Norbert Gispert

Norbert Gispert 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).

  • Polymer-pigment hybrids for use in papermaking
    Patent number: 8343312
    Abstract: Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: January 1, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Mahr, Dieter Meck, Rainer Blum, Ralf Hemel, Norbert Gispert, Juergen Schmidt-Thuemmes, Christoph Hamers
  • Polymer-Pigment Hybrids For Use in Papermaking
    Publication number: 20080210394
    Abstract: Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.
    Type: Application
    Filed: May 24, 2006
    Publication date: September 4, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Norbert Mahr, Dieter Meck, Rainer Blum, Ralf Hemel, Norbert Gispert, Jurgen Schmidt-Thummes, Christoph Hamers