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    Cellulose ester films, polarizing plates and liquid crystal displays equipped therewith
    1.
    发明授权
    Cellulose ester films, polarizing plates and liquid crystal displays equipped therewith 有权
    纤维素酯膜，偏振片和配备的液晶显示器

    公开(公告)号：US09256016B2

    公开(公告)日：2016-02-09

    申请号：US14003627

    申请日：2012-03-02

    申请人： Minori Tamagawa

    发明人： Minori Tamagawa

    IPC分类号： G02B1/10 ,  G02F1/13363 ,  G02B5/32 ,  C08J5/18 ,  C08L1/14 ,  C08L1/10 ,  G02B5/30 ,  C08K5/151

    CPC分类号： G02B5/32 ,  B32B2457/202 ,  C08J5/18 ,  C08J2301/10 ,  C08J2301/14 ,  C08K5/151 ,  C08L1/14 ,  C08L67/02 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3025 ,  G02B5/3083 ,  G02F1/13363 ,  Y10T428/105 ,  C08L1/10

    摘要： The cellulose ester film contains a cellulose ester(s) having substitution(s) by an acyl group(s) having 3 to 4 carbon atoms, or an acyl group(s) having 2 carbon atoms and an acyl group(s) having 3 to 4 carbon atoms, the cellulose ester having a total degree of substitution with the acyl group(s) of not less than 1.0 and less than 2.0 and sufficing a weight average molecular weight of not more than 150000; a sugar ester compound(s) having not less than one and not more than 12 sugar unit structures, the sugar unit structure being at least one of a pyranose structure or furanose structure, wherein an average percentage of substitution in the sugar unit structure is 35% to 75%; and the cellulose ester film having a film thickness of i0 to 35 μm. The cellulose ester film is used for polarizing plates and liquid crystal displays equipped.

    摘要翻译： 纤维素酯膜含有通过具有3〜4个碳原子的酰基或具有2个碳原子的酰基和具有3个碳原子的酰基取代的纤维素酯（s） 至4个碳原子的情况下，所述酰基的总取代度为1.0以上且小于2.0的纤维素酯，重均分子量不大于150000， 糖单元结构不小于1个且不超过12个的糖酯化合物，所述糖单元结构为吡喃糖结构或呋喃糖结构中的至少一种，其中所述糖单元结构中的平均取代百分比为35 ％至75％; 所述纤维素酯膜的膜厚为10〜35μm。 纤维素酯膜用于偏振片和液晶显示器。

    Retardation film, polarizing plate, and liquid crystal display device
    4.
    发明申请
    Retardation film, polarizing plate, and liquid crystal display device 有权
    延迟膜，偏光板和液晶显示装置

    公开(公告)号：US20070009676A1

    公开(公告)日：2007-01-11

    申请号：US11477180

    申请日：2006-06-28

    申请人： Minori Tamagawa ,  Isamu Michihata ,  Noriyasu Kuzuhara

    发明人： Minori Tamagawa ,  Isamu Michihata ,  Noriyasu Kuzuhara

    IPC分类号： C09K19/00

    CPC分类号： G02B5/3083 ,  C08J5/18 ,  C08J2301/00 ,  Y10T428/1041 ,  Y10T428/105 ,  Y10T428/1077

    摘要： A retardation film which contains a cellulose derivative and a plasticizer wherein the thickness of the film is 10 to 50 μm, Ro in Equation (i) is in the range of 30 to 100 nm, Rt in Equation (ii) is in the range of 100 to 300 nm, and S in Equation (iii) is 0.0002 or more but not exceeding 0.030. Ro=(nx−ny)×d   Equation (i) Rt=S×d   Equation (ii) S=((nx+ny)/2−nz)   Equation (iii) (where “nx” is a maximum refraction index of the film surface, “ny” is a refraction index in the direction perpendicular to “nx,” “nz” is a refraction index along the thickness of the film, and “d” is the thickness of the film.)

    摘要翻译： 包含纤维素衍生物和增塑剂的延迟膜，其中膜的厚度为10〜50μm，式（i）中的Ro为30〜100nm的范围，式（ii）中的Rt为 100〜300nm，式（iii）中的S为0.0002以上且不超过0.030。 <？in-line-formula description =“在线公式”end =“lead”？> Ro =（nx-ny）xd等式（i）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> Rt = Sxd等式（ii）<？in-line-formula description =“In-line Formulas” end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> S =（（nx + ny）/ 2-nz） line-formula description =“In-line Formulas”end =“tail”？>（其中“nx”是胶片表面的最大折射率，“ny”是垂直于“nx”的方向的折射率，“ nz“是沿着膜的厚度的折射率，”d“是膜的厚度。）

    CELLULOSE ESTER FILMS, POLARIZING PLATES AND LIQUID CRYSTAL DISPLAYS EQUIPPED THEREWITH
    6.
    发明申请
    CELLULOSE ESTER FILMS, POLARIZING PLATES AND LIQUID CRYSTAL DISPLAYS EQUIPPED THEREWITH 有权
    纤维素酯膜，偏光板和液晶显示器

    公开(公告)号：US20130335681A1

    公开(公告)日：2013-12-19

    申请号：US14003627

    申请日：2012-03-02

    申请人： Minori Tamagawa

    发明人： Minori Tamagawa

    IPC分类号： G02B5/32 ,  G02B5/30

    CPC分类号： G02B5/32 ,  B32B2457/202 ,  C08J5/18 ,  C08J2301/10 ,  C08J2301/14 ,  C08K5/151 ,  C08L1/14 ,  C08L67/02 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3025 ,  G02B5/3083 ,  G02F1/13363 ,  Y10T428/105 ,  C08L1/10

    摘要： [Object] To provide cellulose ester films having high transmittance, and polarizing plates with less deterioration at the time when durability is tested and liquid crystal displays having high contrast, both of which comprise such cellulose ester films.[Means for Solving the Problems] Cellulose ester films comprising a cellulose ester(s) having substitution(s) by an acyl group(s) having 3 to 4 carbon atoms, or an acyl group(s) having 2 carbon atoms and an acyl group(s) having 3 to 4 carbon atoms, the cellulose ester having a total degree of substitution with the acyl group(s) of not less than 1.0 and less than 2.0 and sufficing a weight average molecular weight of not more than 150000; and a sugar ester compound(s) having not less than one and not more than 12 sugar unit structures, the sugar unit structure being at least one of a pyranose structure or furanose structure, wherein an average degree of substitution is 2.8 to 6.0; and further the cellulose ester film having a film thickness of 10 to 35 μm; and polarizing plates and liquid crystal displays equipped therewith.

    摘要翻译： 本发明提供具有高透射率的纤维素酯膜，以及在耐久性测试时具有较小劣化的偏振片和具有高对比度的液晶显示器，两者都包含这种纤维素酯膜。 解决问题的手段含有具有3〜4个碳原子的酰基取代的纤维素酯或具有2个碳原子的酰基的纤维素酯膜和酰基 具有3至4个碳原子的基团，所述纤维素酯具有酰基的总取代度不小于1.0且小于2.0，并且重均分子量不大于150000; 糖单元结构为至少一种吡喃糖结构或呋喃糖结构，平均取代度为2.8〜6.0， 进一步的膜厚为10〜35μm的纤维素酯膜; 偏光板和液晶显示装置。