Fluoropolymer aqueous dispersion
    49.
    发明专利
    Fluoropolymer aqueous dispersion 有权
    空值

    公开(公告)号:JP5472507B2

    公开(公告)日:2014-04-16

    申请号:JP2013067475

    申请日:2013-03-27

    Abstract: The present invention aims to provide an aqueous dispersion that contains particles of a fluoropolymer at high concentrations and has a less variable pH, and in which aggregates are less likely to be generated even after the aqueous dispersion has been stored for a long time. The present invention relates to an aqueous dispersion, including: particles of a fluoropolymer having an average primary particle size of 0.1 to 0.5 µm in an amount of 50 to 70% by mass; a nonionic surfactant in an amount of 2 to 10% by mass based on the amount of the fluoropolymer; and ammonium lauryl sulfate in an amount of 0.0001 to 1% by mass based on the amount of the fluoropolymer, wherein an amount of a fluorine-containing anionic surfactant is less than 10 ppm.

    Abstract translation: 本发明的目的在于提供一种水分散体,其含有高浓度的含氟聚合物的颗粒,并且pH值变化较小,即使在水性分散体长时间储存​​之后聚集体也不太可能产生。 本发明涉及一种水性分散体,包括:平均一次粒径为0.1〜0.5μm的含氟聚合物的粒子的量为50〜70质量% 相对于含氟聚合物的量为2〜10质量%的非离子表面活性剂; 和月桂基硫酸铵的含量相对于含氟聚合物的量为0.0001〜1质量%,其中含氟阴离子表面活性剂的量小于10ppm。

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