Patents by Inventor Georges L. Sturtz

Georges L. Sturtz 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).

  • Diol-phosphonates as flame-retardants in polyurethane foam
    Patent number: 4102830
    Abstract: The novel diol-phosphonates of the formula: ##STR1## in which R.sub.1 is alkyl with 1 to 4 carbon atoms, R.sub.2 is hydrogen, methyl, or ethyl, and A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, or ##STR2## are useful as flameproofing additives in polyurethane foams.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: July 25, 1978
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Georges L. Sturtz, Serge L. Lecolier, Jean-Claude Clement, Jean Marie Biehler
  • Diol-phosphonates
    Patent number: 4052487
    Abstract: The novel diol-phosphonates of the formula: ##STR1## in which R.sub.1 is alkyl with 1 to 4 carbon atoms, R.sub.2 is hydrogen, methyl, or ethyl, and A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, or ##STR2## are useful as flameproofing additives in polyurethane foams.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: October 4, 1977
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Georges L. Sturtz, Serge L. Lecolier, Jean-Claude Clement, Jean Marie Biehler