Patents by Inventor Lothar Thiele

Lothar Thiele 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).

  • Filter for holding and raising ground water
    Patent number: 6372135
    Abstract: The invention relates to a filter in which dust-containing silica sand is held together by a polyurethane binder, the polyurethane binder containing an organotin compound with a molecular weight of more than 600 as catalyst and a mixture of highly dispersed silica and/or bentonites with a thickened aluminosilicate as modifier. The filter is particularly suitable for the production of drinking water from ground water in surface mining regions.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: April 16, 2002
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Lausitzer Braunkohle
    Inventors: Hans-Peter Kohlstadt, Klaus Marten, Lothar Thiele, Werner Fahle, Rainer Tost, Annebärbel Tost, Peter Tost, Frank Tost
  • 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