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    • 40. 发明授权
    • Functional film having specific surface dispersion ratio
    • 功能膜具有比表面积分散比
    • US06605341B2
    • 2003-08-12
    • US09855663
    • 2001-05-16
    • Kiminori TamaiTadayoshi IijimaHiroshi KawaharaYasufumi Takasugi
    • Kiminori TamaiTadayoshi IijimaHiroshi KawaharaYasufumi Takasugi
    • B32B516
    • C23C24/00G02B1/10H01B1/20Y10T428/24942Y10T428/25Y10T428/256Y10T428/257Y10T428/265Y10T428/3154
    • An object of the present invention is to provide functional films which can exhibit a variety of functions using functional fine particles, in particular, a transparent conductive film having a low resistance value using conductive fine particles. The functional film of the present invention is a functional film comprising a support and a functional layer on at least one surface of the support, wherein the above functional layer contains functional fine particles, and a ratio (&sgr;1/&sgr;2) between a dispersion value (&sgr;2) obtainable from the alignment of the functional fine particles at the front surface of the functional layer and a dispersion value (&sgr;1) obtainable from the alignment of the functional fine particles at the opposite surface of the functional layer is from 1.2 to 1.85. Thereby, a sufficient contact of the functional fine particles is effected in the functional layer and the strength of the functional layer and the adhesiveness between the functional layer and the support become large, so that a transparent conductive film wherein conductive fine particles are used as the functional fine particles, for example, has a low electric resistance.
    • 本发明的目的是提供使用功能性微粒特别是使用导电性微粒具有低电阻值的透明导电膜可以发挥各种功能的功能膜。 本发明的功能性膜是在载体的至少一个表面上具有载体和功能层的功能性膜,其中上述功能层含有功能性微粒,分散值( 由功能层前表面上的功能性微粒排列得到的sigma2)和功能层相反表面上的功能性微粒排列得到的分散值(σ1)为1.2〜1.85。 由此,在功能层中进行功能性微粒的充分接触,功能层的强度和功能层与载体之间的粘合性变大,使得导电性微粒用作透明导电膜 功能性微粒例如具有低电阻。