Film formation method capable of preventing fluctuation of ribbon
    1.
    发明授权
    Film formation method capable of preventing fluctuation of ribbon 有权
    能够防止色带波动的成膜方法

    公开(公告)号:US06767500B2

    公开(公告)日:2004-07-27

    申请号:US09911394

    申请日:2001-07-25

    IPC分类号: B29C4124

    CPC分类号: B29C41/26

    摘要: A film is formed by casting a ribbon on a support from a flow cast die while pulling said ribbon toward said support by providing a decompression area. The decompression area is divided into a middle portion, a left portion and a right portion. Degrees of decompression in these three portions satisfy the following formulae: 0

    摘要翻译: 通过提供减压区域将所述带拉向所述支撑件,通过从流铸模具将支撑件上的带铸造而形成膜。 减压区域分为中间部分,左部分和右部分。 这三个部分的减压度满足下式:其中PC是所述中间部分的减压度,PL在所述左部分中减压的程度,PR是所述右部分的减压度。 通过上述方法获得的膜适合用于液晶显示装置的偏振片保护膜。

    Cellulose triacetate film and process for producing the same
    2.
    发明授权
    Cellulose triacetate film and process for producing the same 失效
    三醋酸纤维素薄膜及其制造方法

    公开(公告)号:US06599458B1

    公开(公告)日:2003-07-29

    申请号:US09664438

    申请日:2000-09-18

    IPC分类号: B29C4124

    CPC分类号: C08J5/18 C08J2301/12

    摘要: A cellulose triacetate film having a film thickness from 115 to 135 &mgr;m and a Z value of 0.3 or less wherein the Z value is a slope (g/° C.) obtained by plotting tear strength against temperature in a range between −20° C. and +23° C., and a process for producing the same characterized by drying cast film using drying wind having a temperature T° C. which satisfies T0−15

    摘要翻译: 一种三乙酸纤维素薄膜,其膜厚为115至135μm,Z值为0.3或更小,其中Z值为通过将撕裂强度对温度绘制在-20℃之间而获得的斜率(g /℃) 和+ 23℃,以及其制造方法,其特征在于,使用具有温度T℃的干燥风干燥流延膜,该温度满足T0-15