Patents by Inventor Dirk Paepen

Dirk Paepen 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).

  • WATER-ABSORBING POLYMER
    Publication number: 20140018532
    Abstract: The present invention relates to a process for producing a water-absorbent polysaccharide including the process steps of bringing into contact an uncrosslinked polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel and crosslinking the polysaccharide gel. The invention further relates to a water-absorbent polysaccharide obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the water-absorbent polysaccharides or of the composites as well as the use of polyphosphates.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 16, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Markus Frank, Frank Loeker, Dirk Paepen, Scott J. Smith
  • Water-absorbing polysaccharide and method for producing the same
    Patent number: 8580953
    Abstract: The present invention relates to a process for producing a water-absorbent polysaccharide including the process steps of bringing into contact an uncrosslinked polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel and crosslinking the polysaccharide gel. The invention further relates to a water-absorbent polysaccharide obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the water-absorbent polysaccharides or of the composites as well as the use of polyphosphates.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: November 12, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Frank, Frank Loeker, Dirk Paepen, Scott Smith
  • Water-Absorbing Polysaccharide and Method for Producing the Same
    Publication number: 20080009616
    Abstract: The present invention relates to a process for producing a water-absorbent polysaccharide including the process steps of bringing into contact an uncrosslinked polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel and crosslinking the polysaccharide gel. The invention further relates to a water-absorbent polysaccharide obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the water-absorbent polysaccharides or of the composites as well as the use of polyphosphates.
    Type: Application
    Filed: June 20, 2005
    Publication date: January 10, 2008
    Inventors: Markus Frank, Frank Loeker, Dirk Paepen, Scott Smith