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1. (WO2018181377) METHOD FOR PRODUCING FLUOROPOLYMER-CONTAINING POWDER PARTICLES

Pub. No.:    WO/2018/181377    International Application No.:    PCT/JP2018/012537
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: C08J 3/12
B05D 3/02
B05D 7/24
C09D 5/03
C09D 127/14
C09D 167/00
Applicants: AGC INC.
AGC株式会社
Inventors: SAITO Shun
齋藤 俊
MORIZUMI Takashi
守角 健
Title: METHOD FOR PRODUCING FLUOROPOLYMER-CONTAINING POWDER PARTICLES
Abstract:
Provided is a method for producing fluoropolymer-containing powder particles having a small particle size and a narrow particle size distribution. In this method for producing fluoropolymer-containing powder particles, an aqueous solution containing water, an organic solvent, and a fluoropolymer, which contains a fluoroolefin-based unit and a unit having a carboxy group, is concentrated under reduced pressure to obtain a mother liquid containing fluoropolymer-containing powder particles, and the mother liquid is filtered to obtain fluoropolymer-containing powder particles, wherein the organic solvent is methanol, ethanol, propanol, butyl alcohol, ethylene glycol dimethyl ether, tetrahydrofuran, acetone, methyl ethyl ketone, or acetonitrile.