Method of preparing perfluoropolyethers having regulated...

Details Method of preparing perfluoropolyethers having regulated... Method of preparing perfluoropolyethers having regulated...

C - Chemistry, Metallurgy

08

G

402/370

C08G 65/00 (2006.01)

Patent

CA 1236644

ABSTRACT OF THE DISCLOSURE: A method of preparing perfluoropolyethers having a regulated molecular weight starting from the product obtained by photo chemical oxidation of C2F4 and having a various content of oxygen peroxide, consisting in heat- treating the peroxidized product in order to partially remove the oxygen peroxide till reducing it to a relatively low value, which is prefixed as a function of the molecular weight to be obtained for the final product, and in the subsequent treatment with gaseous fluorine at high temperatures.

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