Patents by Inventor Colette Massyn

Colette Massyn 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).

  • Perfluoroalkyl isoxazoles
    Patent number: 4000150
    Abstract: Perfluoroalkylated isoxazoles having the formula: ##EQU1## wherein R.sub.F is C.sub.3 - C.sub.15 perfluoroalkyl and R is the same as R.sub.F or a different C.sub.3 - C.sub.15 perfluoroalkyl or C.sub.1 - C.sub.7 alkyl or phenyl or phenyl substituted by C.sub.1 - C.sub.7 alkyl which are prepared by reacting hydroxylamine with a beta-diketone, at least one of whose alkyls is a C.sub.3 - C.sub.15 perfluoroalkyl, and dehydrating the resultant perfluoroalkylated 5-hydroxy-isoxazoline in an autoclave in the presence of polyphosphoric acid. The stable products are useful as heat-exchange media and as surfactants in organic solution.
    Type: Grant
    Filed: May 21, 1974
    Date of Patent: December 28, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Aime Cambon, Francois Jeanneaux, Colette Massyn