Fluorinated vinyl ethers and use thereof
    52.
    发明授权
    Fluorinated vinyl ethers and use thereof 失效
    氟化乙烯和其使用

    公开(公告)号:US3799992A

    公开(公告)日:1974-03-26

    申请号:US82716469

    申请日:1969-05-23

    Applicant: US AGRICULTURE

    Inventor: PITTMAN A WASLEY W

    Abstract: Novel fluoroalkyl ethers, typically (CF3)2CF-O-CH2-CH2-Br, are prepared by reacting a ketone with an alkali metal fluoride, then reacting the resulting intermediate with a dihaloethane. These ethers may be dehydrohalogenated by reaction with alcoholic KOH to yield the corresponding fluoroalkyl vinyl ethers, e.g., (CF3)2CF-O-CH=CH2. The vinyl derivatives are useful for providing oil- and water-repellent coatings on fibrous materials, e.g., fabrics.

    Abstract translation: 通常,通过使酮与碱金属氟化物反应,然后使所得中间体与二卤代乙烷反应制备新的氟代烷基醚(通常为(CF 3)2 CF 2 -O-CH 2 -CH 2 Br)。 这些醚可以通过与醇KOH反应脱卤化氢,得到相应的氟烷基乙烯基醚,例如(CF 3)2 CF-O-CH = CH 2。 乙烯基衍生物可用于在纤维材料(例如织物)上提供防油和防水涂料。

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