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Title:
FLUORINE-CONTAINING ELASTIC COPOLYMER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/225586
Kind Code:
A1
Abstract:
Provided are a fluorine-containing elastic copolymer in which the contained amounts of metal elements and chloride ions are low, and a fluorine-containing elastic copolymer production method capable of obtaining a fluorine-containing elastic copolymer in which the contained amounts of metal elements and chloride ion contents are low. This fluorine-containing elastic copolymer has a metal element content of 20.0 ppm by mass or less and a chloride ion content of 1 ppm by mass or less. This production method for a fluorine-containing elastic copolymer comprises: causing a fluorine-containing elastic copolymer in a latex containing the fluorine-containing elastic copolymer to aggregate using an acid not including a metal element or a chloride ion; and washing the aggregated fluorine-containing elastic copolymer with a liquid medium having a metal element content of 2.0 ppm by mass or less and a chloride ion content of 2 ppm by mass or less.

Inventors:
HATTORI Yukiko (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
KOSE Takehiro (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
Application Number:
JP2018/020587
Publication Date:
December 13, 2018
Filing Date:
May 29, 2018
Export Citation:
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Assignee:
AGC INC. (5-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 05, 〒1008405, JP)
International Classes:
C08F214/26; C08F6/14; C08F214/18
Domestic Patent References:
WO2015008649A12015-01-22
WO1999050319A11999-10-07
WO2015111729A12015-07-30
Foreign References:
JP2013177631A2013-09-09
JP2011505431A2011-02-24
JP2011047052A2011-03-10
JP2017092122A2017-05-25
Attorney, Agent or Firm:
SENMYO Kenji et al. (3rd Floor, PMO Kanda-Tsukasamachi 2-8-1, Kanda-Tsukasamachi, Chiyoda-k, Tokyo 48, 〒1010048, JP)
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