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    • 8. 发明授权
    • Iodine-containing fluoropolyether and process for producing the same
    • 含碘的含氟聚醚及其制备方法
    • US07772443B2
    • 2010-08-10
    • US11921343
    • 2006-05-22
    • Keisuke KokinKimihiko UrataTakehiro Sonoi
    • Keisuke KokinKimihiko UrataTakehiro Sonoi
    • C07C43/12
    • C07C41/22C07C43/126
    • An iodine-containing fluoropolyether represented by the following general formula [I]: RfO[CF(CF3)CF2O]mCF(CF3)(CH2)nI  [I] (where Rf is a perfluoroalkyl group having 1-3 carbon atoms, m is an integer of 0-10, and n is an integer of 3-12), is a novel compound having a perfluoropolyetheralkyl group capable of giving a flexibility to the molecule chain through the etheral bond, said perfluoropolyether alkyl group being bonded to the alkyl iodide having an alkyl group having 3 or more carbon atoms, and can be produced by reaction of a fluoropolyether group-containing alcohol represented by the following general formula [II]: RfO[CF(CF3)CF2O]mCF(CF3)(CH2)nOH  [II] (Where Rf, m, and n have the same meanings as defined above) with a metal iodide, preferably potassium iodide.
    • 由以下通式[I]表示的含碘含氟聚醚:RfO [CF(CF 3)CF 2 O] m CF(CF 3)(CH 2)n I [I](其中Rf是具有1-3个碳原子的全氟烷基,m是 是0〜10的整数,n为3〜12的整数)是具有通过醚键赋予分子链柔性的全氟聚醚烷基的新化合物,所述全氟聚醚烷基与烷基碘键合 具有3个以上碳原子的烷基,可以通过由以下通式[II]表示的含氟聚醚基团的醇反应来制造:RfO [CF(CF 3)CF 2 O] m CF(CF 3)(CH 2)n OH [II](其中Rf,m和n具有与上述相同的含义)与金属碘化物,优选碘化钾。
    • 9. 发明授权
    • Process for producing 2,2,3,3,-tetrafluorooxetane
    • 制备2,2,3,3-四氟氧杂环丁烷的方法
    • US07737299B2
    • 2010-06-15
    • US10589418
    • 2005-02-10
    • Sunao IkedaTakehiro Sonoi
    • Sunao IkedaTakehiro Sonoi
    • C07C59/00
    • C07D305/08
    • In the production of 2,2,3,3-tetrafluorooxethane by reaction of tetrafluoroethylene with a compound of formaldehyde generation source in anhydrous hydrogen fluoride, the reaction is carried out in the presence of polyfluoroalkylcarboxylic acid or polyfluoroalkyl ester thereof, represented by the following general formula RfCOORf′ (where Rf is a polyfluoroalkyl group having 1-5 carbon atoms, and Rf′ is a hydrogen atom or a polyfluoroalkyl group having 1-5 carbon atoms), preferably CF3COOH, CF3COOCH2CF2CF3, or CF3COOCH2CF3, whereby a high reaction yield can be attained.
    • 在通过四氟乙烯与无水氟化氢中的甲醛生成源的化合物的反应制备2,2,3,3-四氟乙烷时,反应在多氟烷基羧酸或其多氟烷基酯的存在下进行,由以下通式 式RfCOORf'(其中Rf是具有1-5个碳原子的多氟烷基,Rf'是氢原子或具有1-5个碳原子的多氟烷基),优选CF 3 COOH,CF 3 COOCH 2 CF 2 CF 3或CF 3 COOCH 2 CF 3,由此高的反应产率可以 实现。