发明公开
EP1980584A1 PROCESS FOR PRODUCTION OF PERFLUOROPOLYETHER CARBOXYLIC ACID FLUORIDE
有权
用于生产全氟聚醚CARBOXYLSÄUREFLUORID
- 专利标题： PROCESS FOR PRODUCTION OF PERFLUOROPOLYETHER CARBOXYLIC ACID FLUORIDE
- 专利标题（中）： 用于生产全氟聚醚CARBOXYLSÄUREFLUORID
-
申请号： EP07707881.4申请日： 2007-02-01
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公开(公告)号： EP1980584A1公开(公告)日： 2008-10-15
- 发明人: IKEDA, Sunao
- 申请人： Unimatec Co., Ltd.
- 申请人地址： 12-15, Shibadaimon 1-chome Minato-ku Tokyo 105-8585 JP
- 专利权人： Unimatec Co., Ltd.
- 当前专利权人： Unimatec Co., Ltd.
- 当前专利权人地址： 12-15, Shibadaimon 1-chome Minato-ku Tokyo 105-8585 JP
- 代理机构： Albrecht, Thomas
- 优先权： JP2006024420 20060201
- 国际公布： WO2007088929 20070809
- 主分类号： C08G65/323
- IPC分类号： C08G65/323 ; C08G65/16
摘要：
Perfluoropolyether carboxylic acid fluoride having the following general formula :
F(CF 2 CF 2 CF 2 O)nCF 2 CF 2 COF
(n : 2-200, preferably 35-70)
can be produced by starting fluorination reaction of polyfluoropolyether carboxylic acid having the general formula as a tetrafluorooxetane polymer :
F(CH 2 CF 2 CF 2 O)nCH 3 CF 2 COF
(n: 2-200)
in a dispersed state in a perfluoropolyether-based solvent with a fluorine gas at 50 ° -80 °C, then slowly elevating the fluorination reaction temperature, and finally completing the fluorination reaction at 100° - 120°C, where even in the case of fluorination reaction of the starting material with a high degree of polymerization the desired product can be produced in high yield, while suppressing the decomposition and keeping the high degree of polymerization substantially.
F(CF 2 CF 2 CF 2 O)nCF 2 CF 2 COF
(n : 2-200, preferably 35-70)
can be produced by starting fluorination reaction of polyfluoropolyether carboxylic acid having the general formula as a tetrafluorooxetane polymer :
F(CH 2 CF 2 CF 2 O)nCH 3 CF 2 COF
(n: 2-200)
in a dispersed state in a perfluoropolyether-based solvent with a fluorine gas at 50 ° -80 °C, then slowly elevating the fluorination reaction temperature, and finally completing the fluorination reaction at 100° - 120°C, where even in the case of fluorination reaction of the starting material with a high degree of polymerization the desired product can be produced in high yield, while suppressing the decomposition and keeping the high degree of polymerization substantially.
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