Fluorinated compounds
CA 1065327 A · Owner: Ciba-Geigy Ag · Inventors: Mueller, Karl F.; Falk, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to fluorinated compounds of the formula, wherein Rf is a perfluoroalkyl or perfluoroalkoxyperfluoroalkyl group, R1 is a branched or straight chain alkylene, alkylenethioalkylene, alkyleneoxyalkylene or alkyleneiminoalkylene group X is oxygen, or an amino group, Q is an organic group containing at least one amino group and y is zero or 1 and the, corresponding succinimides. These compounds are useful as surfactants, especially in aqueous wetting and film forming compositions. These compositions which may contain further surfactants spread on fuel surfaces suppressing vaporization, when diluted with water. Because of this property the aqueous solutions of the …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.