Method for the preparation of fluoropolymer powdered materials

Details Method for the preparation of fluoropolymer powdered materials Method for the preparation of fluoropolymer powdered materials

C - Chemistry, Metallurgy

08

J

C08J 3/12 (2006.01) F26B 5/06 (2006.01)

Patent

CA 2636460

A method for the preparation of fluoropolymer powdered materials is disclosed. A suspension of solid fluoropolymer particles in a liquid carrier, preferably water, is frozen and the frozen carrier is then removed by sublimation at sub- atmospheric pressure to produce a dry powder of fluoropolymers particles.

La présente invention concerne un procédé de préparation de matériaux fluoropolymères sous forme de poudre. Une suspension de particules solides de fluoropolymère dans un véhicule liquide, de préférence de l'eau, est congelée et le véhicule congelé est ensuite éliminé par sublimation sous une pression sous-atmosphérique de façon à produire une poudre sèche de particules de fluoropolymère.

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