发明授权
- 专利标题： Fluorinated elastic copolymer composition, coating material, and coated article
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申请号： US16830643申请日： 2020-03-26
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公开(公告)号： US11332561B2公开(公告)日： 2022-05-17
- 发明人: Takeshi Yamada , Toshifumi Kakiuchi , Aya Serita , Masahide Yodogawa
- 申请人： AGC Inc.
- 申请人地址： JP Chiyoda-ku
- 专利权人： AGC Inc.
- 当前专利权人： AGC Inc.
- 当前专利权人地址： JP Chiyoda-ku
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JPJP2017-198408 20171012
- 主分类号： C08F214/26
- IPC分类号： C08F214/26 ; C09D7/61 ; C09D7/20 ; C08K3/04 ; C08K3/36 ; C08L27/18 ; C09D127/18 ; C09J127/18
摘要：
To provide a fluorinated elastic copolymer composition such that solubility of a fluorinated elastic copolymer in a solvent is excellent, the solvent is easily removed, and the solvent is easily available.
A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19× number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.
A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19× number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.
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