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    • 3. 发明申请
    • PROCESS OF PREPARING LIGHT REFLECTIVE FILM
    • 制备光反射膜的方法
    • US20120088037A1
    • 2012-04-12
    • US13377684
    • 2010-06-10
    • Kazuhiro OkiMitsuyoshi Ichihashi
    • Kazuhiro OkiMitsuyoshi Ichihashi
    • B05D3/06
    • G02B5/26G02B5/208G02B5/3016
    • A process stably produces a light reflective film with plural light reflective layers formed of a fixed cholesteric liquid crystal phase, having high transparency and excellent light-reflective characteristics. The process of preparing a light reflective film having at least two light reflective layers formed of a fixed cholesteric liquid crystal phase includes first allowing a curable liquid crystal composition to form a cholesteric liquid crystal phase on a first light reflective layer formed of a fixed cholesteric liquid crystal phase, then carrying out a curing reaction of the curable liquid crystal composition under an irradiation of an ultraviolet light to fix the cholesteric liquid-crystal phase, thereby to form a second light reflective layer. In the second step, the ultraviolet light is irradiated to the curable liquid crystal composition through a member capable of lowering at least the intensity of the ultraviolet light with a wavelength of 340 nm or shorter.
    • 一种工艺稳定地生产具有由固定的胆甾型液晶相形成的多个光反射层的光反射膜,具有高透明度和优异的光反射特性。 制备具有由固定胆甾型液晶相形成的至少两个光反射层的光反射膜的工艺包括首先使可固化液晶组合物在由固定胆甾型液体形成的第一光反射层上形成胆甾醇型液晶相 然后在紫外线照射下进行可固化液晶组合物的固化反应以固定胆甾醇型液晶相,从而形成第二光反射层。 在第二步骤中,通过能够至少降低波长为340nm以下的紫外线的强度的部件将紫外线照射到固化型液晶组合物。