The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1976
Filed:
May. 21, 1974
Applicant:
Inventors:
Assignee:
Produits Chimiques Ugine Kuhlmann, Paris, F;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 252 781 ; 252357 ; 2603 / ;
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.