Process for preparing perfluoropolyethers

Details Process for preparing perfluoropolyethers Process for preparing perfluoropolyethers

C - Chemistry, Metallurgy

08

G

C08G 65/00 (2006.01) C07C 409/20 (2006.01)

Patent

CA 2135701

ABSTRACT "Process for preparing perfluoropolyethers" Process for preparing peroxidic perfluoropolyethers by oxi- dation of tetrafluoroethylene with oxygen, in liquid phase comprising a solvent and in the presence of a chemical ini- tiator, at a pressure between 2 and 15 absolute atm and operating with a molar ratio of the tetrafluoroethylene to the chemical initiator higher than 35. The process allows to increase the molecular weight of the perfluoropolyethers at the same content of peroxidic oxygen.

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