Title:
フルオロポリマー水性分散液の製造方法、排水の処理方法、及び、フルオロポリマー水性分散液
Document Type and Number:
Japanese Patent JP7389366
Kind Code:
B2
Abstract:
The present disclosure provides a method for producing a fluoropolymer aqueous dispersion, the method comprising a step A of performing ultrafiltration, microfiltration, or dialysis membrane treatment, or a combination thereof on a pretreatment aqueous dispersion containing a fluoropolymer obtained by polymerization in the presence of a polymer (I) comprising a polymerized unit (I) derived from a monomer represented by the following general formula (I), with the proviso that the fluoropolymer is other than the polymer (I): CX1X3=CX2R(-CZ1Z2-A0)m (I)wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.
Inventors:
Satoshi Yoneda
Masahiro Higashi
Hisami Ishihara
Hirotoshi Yoshida
Yohei Fujimoto
Masahiro Higashi
Hisami Ishihara
Hirotoshi Yoshida
Yohei Fujimoto
Application Number:
JP2021516334A
Publication Date:
November 30, 2023
Filing Date:
April 27, 2020
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
C08F6/16; C08F6/12; C08F14/18
Domestic Patent References:
| JP2020510737A | ||||
| JP2020533435A | ||||
| JP11181009A | ||||
| JP2007332321A | ||||
| JP2007031713A | ||||
| JP55120630A | ||||
| JP2013245237A |
Foreign References:
| WO1998036017A1 | ||||
| WO2011034179A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office