- 专利标题: FLUOROPOLYMER AQUEOUS DISPERSION PRODUCTION METHOD AND FLUOROPOLYMER AQUEOUS DISPERSION
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申请号: US17606360申请日: 2020-04-27
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公开(公告)号: US20220251251A1公开(公告)日: 2022-08-11
- 发明人: Tadao HAYASHI , Takahiro TAIRA , Hirotoshi YOSHIDA , Chiaki OKUI , Taku YAMANAKA , Taketo KATO
- 申请人: DAIKIN INDUSTRIES, LTD.
- 申请人地址: JP Osaka-shi, Osaka
- 专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人地址: JP Osaka-shi, Osaka
- 优先权: JP2019-085982 20190426
- 国际申请: PCT/JP2020/018045 WO 20200427
- 主分类号: C08F6/16
- IPC分类号: C08F6/16 ; C08F6/22 ; C08F6/00 ; C08F114/26 ; C08F2/26 ; C08F2/30 ; B01J20/26 ; B01J20/28 ; B01J41/05 ; B01J41/14 ; B01J47/018 ; C08L27/18
摘要:
A method for producing a purified fluoropolymer aqueous dispersion, which includes: (A) bringing a fluoropolymer aqueous dispersion obtained using a hydrocarbon surfactant into contact with an anion exchange resin A or a synthetic adsorbent. The anion exchange resin A has an ion-exchange group represented by the following general formula (A1): —N+R1R2R3X— wherein each of R1, R2, and R3 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R1, R2, and R3 is an organic group having 3 or more carbon atoms; and X is a counter ion; or an ion-exchange group represented by the following general formula (A2): —NR4R5 wherein each of R4 and R5 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R4 and R5 is an organic group having 2 or more carbon atoms.
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