Aqueous dehydrofluorination method

Details Aqueous dehydrofluorination method Aqueous dehydrofluorination method

C - Chemistry, Metallurgy

08

F

C08F 8/26 (2006.01) C08F 14/18 (2006.01)

Patent

CA 2263307

A method of dehydrofluorinating a fluoropolymer comprising the steps of: providing a fluoropolymer emulsion comprising water, a fluoropolymer, and substantially no organic solvent; adding to the fluoropolymer emulsion a basic compound, the base compound being added at a concentration and in an amount that does not result in coagulation of the fluoropolymer; and exposing the mixture of fluoropolymer emulsion and basic compound to reaction conditions sufficient to cause dehydrofluorination of the fluoropolymer.

Procédé de déshydrofluoration d'un fluoropolymère consistant à produire une émulsion comprenant de l'eau, un fluoropolymère et pratiquement aucun solvant organique; à ajouter à l'émulsion de fluoropolymère un composé basique dans une concentration et une quantité qui n'entraînent pas la coagulation du fluoropolymère; et à exposer le mélange de l'émulsion de fluoropolymère et du composé basique à des conditions de réaction suffisantes pour provoquer la déshydrofluoration du fluoropolymère.

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