FLUOROPOLYMER POWDER AND METHOD FOR PRODUCING SAME

Title:

FLUOROPOLYMER POWDER AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2018/070420

Kind Code:

A1

Abstract:

Provided is a powder which can be easily redispered in a liquid medium such as water. This fluoropolymer powder is characterized in that the fluoropolymer has at least one group A selected from the group consisting of -SO2Y, -COOR, -SO3X, -SO2NR1 2, and -COOX (where, Y represents a halogen atom, R represents an alkyl group having a carbon atom number of 1-4, X represents M1/L or NR1 4, M represents a hydrogen atom or an L-valent metal, the L-valent metal being a metal belonging to Group 1, 2, 4, 8, 11, 12 or 13 of the Periodic Table, and each R1 independently represents a hydrogen atom or an alkyl group having a carbon atom number of 1-4), and the degree of dispersion of a composition obtained by mixing the powder and water is at least 50% as measured by filtering the composition through a mesh having an opening size of 20 μm.

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Inventors:

YOTSUMOTO YUKI (JP)
INO TADASHI (JP)
OHTSUKA KAZUHIRO (JP)
SHINOKI NORIYUKI (JP)
NAKAZAWA MASAHARU (JP)
YOSHIMURA TAKASHI (JP)
KONDO MASAHIRO (JP)

Application Number:

PCT/JP2017/036808

Publication Date:

April 19, 2018

Filing Date:

October 11, 2017

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

C08J3/16; C08F214/26; C08F216/14

Domestic Patent References:

WO2004018527A1	2004-03-04
WO2008082497A1	2008-07-10
WO2004018527A1	2004-03-04

Foreign References:

JP2001504872A	2001-04-10
JP2013245237A	2013-12-09
JP2014001376A	2014-01-09
JPS4983681A	1974-08-12
JPS50131867A	1975-10-18

Other References: