Process for the insertion of perfluoroolefines on perfluoropolye

Details Process for the insertion of perfluoroolefines on perfluoropolye Process for the insertion of perfluoroolefines on perfluoropolye

1983-03-18

1985-02-19

Evans, J. E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

204158R, 260544F, C07C 4312, C07C 4101, C07C 5540

Patent

active

045007390

ABSTRACT:
Perfluoropolyether comprising, besides --CF.sub.2 -- and --CF.sub.2 F.sub.4 units, also a third fluoroalkylene unit containing three or more carbon atoms, said units being connected to each other through --O-ether bridges, and process for obtaining above said polyether, consisting in reacting a mixture of polyperoxidic perfluoropolyether and a fluorinated olefin, in the presence of U.V. radiations.

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patent: 3637868 (1972-01-01), Nychka
patent: 3650928 (1972-03-01), Sianesi et al.
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3733349 (1973-05-01), Loudas et al.
patent: 4094911 (1978-06-01), Mitsch et al.
patent: 4113435 (1978-09-01), Lagow et al.

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