METHOD OF PRODUCING FLUOROPOLYMER COMPOSITION Russian patent published in 2024 - IPC C08F14/18 C08F6/14 C08F6/24 C08L27/12 

Abstract RU 2824595 C1

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing a fluoropolymer-containing fluoropolymer composition. Method comprises polymerisation of a fluoromonomer in a reactor in the presence of a fluorine-containing surfactant, a polymerisation initiator and an aqueous medium for preparing an aqueous dispersion containing a fluoropolymer; then removing from the reactor the fluoromonomer remaining in the reactor, or extracting the aqueous dispersion from the reactor and placing it in a container different from the reactor; adding a radical generator to the aqueous dispersion; and thermal treatment of the aqueous dispersion containing the radical generator to obtain a fluoropolymer composition.

EFFECT: method enables to obtain a fluoropolymer composition with reduced content of a fluorine-containing surfactant with high efficiency, used in polymerisation of fluoromonomer, as well as content of fluorine-containing compound obtained during polymerisation of fluoromonomer.

15 cl, 8 tbl, 6 ex

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RU 2 824 595 C1

Authors

Yamazaki, Ranna

Kato, Taketo

Yamanaka, Taku

Yoshida, Hirotoshi

Yamabe, Takuya

Ogura, Akiho

Dates

2024-08-12Published

2022-01-28Filed