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:
Jun. 19, 1990
Filed:
Nov. 02, 1989
Applicant:
Inventor:
Colin R Sargent, Bristol, GB;
Assignee:
ISC Chemicals Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548439 ;
Abstract
A fully fluorinated and fully-saturated heterocyclic organic compound of general formula ##STR1## wherein the saturated rings F are fully fluorinated, and where the Rf radical is selected from perfluoro-alkyl groups, perfluoro-alicyclic groups, and mixed perfluoro-cycloalkyl-alkyl groups, and wherein the Rf radical contains from 1 to 10 carbon atoms inclusive. The compounds are high temperature heat transfer fluids.