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    • 9. 发明申请
    • Transparent Substrate
    • 透明基材
    • US20130184380A1
    • 2013-07-18
    • US13784123
    • 2013-03-04
    • Toppan Printing Co., Ltd.
    • Kosuke ShimizuYumiko OomoriMizuhiro TaniAkiko Saiki
    • C09D101/08
    • C08L1/10C08B15/02C08J5/18C08J2301/04C08K5/005C08K5/523G02B1/105G02B1/14G02B1/18G02B5/3033C08L1/04C08L51/06
    • The present invention provides a formed article, or more specifically a transparent substrate, which effectively utilizes a natural stuff and which has a low linear expansion coefficient, a high light transmittance and an appropriate level of moisture permeability. The transparent substrate includes at least an oxidized polysaccharide and has a linear expansion coefficient of 50 ppm/° C. or less at 30-150° C. and a light transmittance of 70% or more at 660 nm. Its manufacturing method includes an oxidation process in which cellulose reacts with TEMPO or its derivatives as a catalyst to be oxidized in water under the presence of a co-oxidant, along with a fiberizing process in which the oxidized cellulose is fiberized in water to form a cellulose fiber, and a substrate-forming process in which a transparent substrate is formed from a cellulose dispersion liquid containing the cellulose fiber.
    • 本发明提供了一种有效利用天然材料并且具有低线性膨胀系数,高透光率和适当水分渗透性水平的成形制品,或更具体地说是透明基材。 透明基材至少含有氧化多糖,在30〜150℃下的线膨胀系数为50ppm /℃以下,660nm下的透光率为70%以上。 其制造方法包括氧化方法,其中纤维素与TEMPO或其衍生物作为催化剂与助氧化剂存在下在水中氧化的催化剂一起,以及纤维化方法,其中氧化纤维素在水中纤维化形成 纤维素纤维和由含有纤维素纤维的纤维素分散液形成透明基材的基板形成方法。