METHOD OF PRODUCING POWDERED MATERIALS FROM FLUORINE-CONTAINING POLYMERS Russian patent published in 2011 - IPC C08J3/12 F26B5/06 

FIELD: chemistry.

SUBSTANCE: suspension of solid particles of a fluorine-containing polymer in a liquid carrier, preferably water, is frozen and the frozen carrier is then removed via sublimation at subatmospheric pressure to obtain dry powder of fluorine-containing polymer particles.

EFFECT: method enables to obtain powdered materials from a liquid suspension of solid particles of a fluorine-containing polymer which, at normal conditions, cannot be pumped by a pump due to fibrillation capacity.

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