Patents by Inventor Stefan Fox

Stefan Fox 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).

  • Production of flame-resistant flexible polyurethane foams
    Patent number: 5885479
    Abstract: Flame-resistant flexible polyurethane foams are produced by reactinga) organic and/or modified organic polyisocyanates,b) relatively high molecular weight compounds containing at least two reactive hydrogen atoms andc) if desired, low molecular weight chain extendersin the presence ofd) catalysts,e) blowing agentsf) flame retardants,and, if desiredg) auxiliaries and/or additives,where the flame retardants f) used are melamine in combination with at least one anionic dispersant.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: March 23, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Sarbananda Chakrabarti, Stefan Fox, Jurgen Schneider, Klaus Schmutzer
  • Production of flame-resistant flexible polyurethane foams
    Patent number: 5741827
    Abstract: Flame-resistant flexible polyurethane foams are produced by reactinga) organic and/or modified organic polyisocyanates,b) relatively high molecular weight compounds containing at least two reactive hydrogen atoms andc) if desired, low molecular weight chain extenders in the presence ofd) catalysts,e) blowing agentsf) flame retardants,and, if desiredg) auxiliaries and/or additives,where the flame retardants f) used are melamine in combination with at least one anionic dispersant.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: April 21, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Sarbananda Chakrabarti, Stefan Fox, Jurgen Schneider, Klaus Schmutzer