METHOD FOR PRODUCING FLUOROPOLYMER AQUEOUS DISPERSION LIQUID

Title:

METHOD FOR PRODUCING FLUOROPOLYMER AQUEOUS DISPERSION LIQUID

Document Type and Number:

WIPO Patent Application WO/2015/186794

Kind Code:

A1

Abstract:

Provided is a method capable of producing a fluoropolymer aqueous dispersion liquid that has excellent dispersion stability, while containing particles having extremely small diameters. A method for producing a fluoropolymer aqueous dispersion liquid, which is a method for producing an aqueous dispersion liquid that contains at least one fluoropolymer selected from the group consisting of polytetrafluoroethylenes and melt-processable fluororesins (excluding polytetrafluoroethylenes), in said method polymerization of a fluoromonomer being carried out in an aqueous medium in the presence of a fluorine-containing surfactant and a polymerization initiator. This method for producing a fluoropolymer aqueous dispersion liquid is characterized in that the concentration of the fluorine-containing surfactant in the aqueous medium is 0.8 times or more the critical micelle concentration of the fluorine-containing surfactant.

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Inventors:

NANBA YOSHINORI
FUKAMI DAI
YAMABE TAKUYA
KATO TAKETO
ONO MAKOTO
TAIRA TAKAHIRO
YOSHIDA HIROTOSHI
YAMANAKA TAKU

Application Number:

PCT/JP2015/066211

Publication Date:

December 10, 2015

Filing Date:

June 04, 2015

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

C08F2/24; C08F14/00

Domestic Patent References:

WO2005042593A1	2005-05-12
WO2014084399A1	2014-06-05

Foreign References:

JPH10513497A	1998-12-22
JP2009155558A	2009-07-16

Other References: