Process for the purification and stabilization of perfluoropolye

Details Process for the purification and stabilization of perfluoropolye Process for the purification and stabilization of perfluoropolye

1990-01-29

1991-02-26

Mars, Howard T.

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

Organic compounds

Oxygen containing

568615, 568621, 568677, 568699, 568581, 568604, 252 77, 252 781, 252 67, C07C 4134

Patent

active

049963686

ABSTRACT:
The invention relates to a process for the stabilization and purification of perfluoropolyethers of the general formulae (I) or (II) ##STR1## in which R=--F or --C.sub.a F.sub.2a+1

REFERENCES:
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3985810 (1976-10-01), Von Halasz et al.

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