Patents by Inventor Claudia Plutniok

Claudia Plutniok 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).

  • Polyurethane compositions having stable reactivity
    Patent number: 5973065
    Abstract: The pot life of a polyurethane composition is increased by providing a composition containing a polyisocyanate, polyol, highly dispersed silica, and a filler wherein at least a portion of the filler is coated.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: October 26, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Lothar Thiele, Nicole Schlingloff, Claudia Plutniok
  • Isocyanate/polyol casting resin
    Patent number: 5648421
    Abstract: A composition useful as a casting resin is provided. The composition comprises a polyol, a polyisocyanate, a catalyst, and a suspension aid, and said catalyst and said suspension aid are present in the casting resin in such concentrations that, within 10 minutes of mixing, it flows downwards a) by at least 15 cm at 25.degree. C. and b) by 3 to 0.3 cm at 130.degree. C. The casting resin is particularly useful as a binder for a granular material in the production of open-cell moldings which are permeable to water.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: July 15, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Lothar Thiele, Hans-Peter Kohlstadt, Nicole Schlingloff, Claudia Plutniok