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    • 3. 发明申请
    • LAMINATED FILM
    • 层压膜
    • US20090034235A1
    • 2009-02-05
    • US11995144
    • 2006-07-10
    • Hiroshi KusumeAtsushi Oyamatsu
    • Hiroshi KusumeAtsushi Oyamatsu
    • F21V7/22H01L31/042B32B27/36F21V7/00G02F1/13357B32B27/20B32B5/22
    • G02B5/0242B32B27/08B32B27/20B32B27/36B32B2250/244B32B2264/10B32B2307/308B32B2307/416B32B2307/518B32B2307/71B32B2457/202G02B5/0268G02B5/0284G02F1/133553G02F1/133605H01L31/049Y02E10/50Y10T428/24942Y10T428/24967Y10T428/24975
    • A white laminated film which has practically sufficient reflectivity at a visible range, can be formed stably, is free from deterioration (yellowing) by ultraviolet radiation, rarely deforms by heat and can be advantageously used as a reflector substrate for liquid crystal displays and internal illumination type electrically spectacular signs, is provided. The laminated film includes a first layer of a composition which includes 31 to 60 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and 40 to 69 wt % of a polyester consisting of 1 to 100 mol % of naphthalenedicarboxylic acid and 0 to 99 mol % of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component, and a layer B of a composition which includes 0 to 30 wt % of inert particles having an average particle diameter of 0.3 to 3.0 μm and 70 to 100 wt % of a polyester consisting of 3 to 20 mol % of naphthalenedicarboxylic acid and 80 to 97 mol % of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component and which is in direct contact with the first layer.
    • 可以稳定地形成在可见光范围内具有足够的反射率的白色层压膜,通过紫外线辐射而不会劣化(变黄),很少由于热而变形,并且可以有利地用作液晶显示器和内部照明的反射器基板 提供电子壮观的标志。 层叠膜包括第一层组合物,其包含31〜60重量%的平均粒径为0.3〜3.0μm的惰性粒子和40〜69重量%的由1〜100摩尔%的萘二羧酸组成的聚酯和 0〜99摩尔%的作为二羧酸成分的对苯二甲酸和作为二醇成分的乙二醇的组合物,以及含有0〜30重量%的平均粒径为0.3〜3.0μm的惰性粒子和70重量% 至100重量%的作为二羧酸成分的由3〜20摩尔%的萘二甲酸和80〜97摩尔%的对苯二甲酸组成的聚酯与作为二醇成分的乙二醇形成的聚酯,与第1层直接接触。