FLUORORESIN WITH LOW FLUORINE-CONTAINING EMULSIFIER RESIDUAL AND METHOD FOR PRODUCING SAME

Title:

FLUORORESIN WITH LOW FLUORINE-CONTAINING EMULSIFIER RESIDUAL AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2007/049517

Kind Code:

A1

Abstract:

Disclosed is a fluororesin substantially containing no perfluorooctanoic acid or salt thereof, wherein the residual amount of a fluorine-containing emulsifier is low. Specifically disclosed is a fluororesin obtained by emulsion-polymerizing a fluorine-containing monomer in an aqueous medium containing a fluorine-containing emulsifier represented by the general formula (1) below, and agglutinating and then drying the resulting aqueous emulsion. In this fluororesin, the residual amount of the fluorine-containing emulsifier represented by the general formula (1) is not more than 10 ppm. XCF2CF2(O)mCF2CF2OCF2COOA (1) (In the formula, X represents a hydrogen atom or a fluorine atom; A represents a hydrogen atom, an alkali metal or NH4; and m represents an integer of 0-1.)

Inventors:

MATSUOKA YASUHIKO (JP)
HIGUCHI SHINYA (JP)
HOSHIKAWA JUN (JP)
KAMIYA HIROKI (JP)

Application Number:

PCT/JP2006/320942

Publication Date:

May 03, 2007

Filing Date:

October 20, 2006

Export Citation:

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Assignee:

ASAHI GLASS CO LTD (JP)
MATSUOKA YASUHIKO (JP)
HIGUCHI SHINYA (JP)
HOSHIKAWA JUN (JP)
KAMIYA HIROKI (JP)

International Classes:

C08F6/16; C08F2/26; C08F14/26

Domestic Patent References:

WO2005007709A1	2005-01-27
WO2005042593A1	2005-05-12

Foreign References:

JP2006321797A	2006-11-30
JP2006274237A	2006-10-12
JP2003119204A	2003-04-23
JP2005290350A	2005-10-20
JP2002532583A	2002-10-02
JP2002308914A	2002-10-23
JPH06192321A	1994-07-12
JP2003082019A	2003-03-19
JP2003119204A	2003-04-23
JP2005310828A	2005-11-04

Other References: