Patents by Inventor Kevin J. Elsken

Kevin J. Elsken 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).

  • Rigid polyurethane foams with improved properties
    Patent number: 6846850
    Abstract: In the process of the present invention, an organic polyisocyanate is reacted with a sorbitol-based polyether polyol having a number average molecular weight of from about 400 to about 1500, in the presence of a pentafluoropropane blowing agent, and a catalyst.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: January 25, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Steven L. Schilling, Edward E. Ball, Kevin J. Elsken
  • RIGID POLYURETHANE FOAMS WITH IMPROVED PROPERTIES
    Publication number: 20040143027
    Abstract: In the process of the present invention, an organic polyisocyanate is reacted with a sorbitol-based polyether polyol having a number average molecular weight of from about 400 to about 1500, in the presence of a pentafluoropropane blowing agent, and a catalyst.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 22, 2004
    Inventors: Steven L. Schilling, Edward E. Ball, Kevin J. Elsken