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    PROCESS FOR PRODUCING WATER-RESISTANT POLARIZING FILM
    2.
    发明申请
    PROCESS FOR PRODUCING WATER-RESISTANT POLARIZING FILM 失效
    生产耐水偏光膜的方法

    公开(公告)号：US20130277871A1

    公开(公告)日：2013-10-24

    申请号：US13922645

    申请日：2013-06-20

    申请人： NITTO DENKO CORPORATION

    发明人： Junzo Miyazaki ,  Shoichi Matsuda ,  Kyoko Nishiguchi

    IPC分类号： B29D11/00

    CPC分类号： B29D11/00644 ,  C09B31/072 ,  C09B31/08 ,  C09B63/005 ,  G02B5/3033

    摘要： To obtain a water-resistant polarizing film free from deterioration in dichroic ratio caused by water-resistant treatment, it is critical that adjacent sulfonic acid groups or sulfonate groups in the organic dyes to be used for the polarizing film are spaced at moderate intervals. In a process for producing a water-resistant polarizing film of the present invention, the polarizing film before water-resistant treatment includes an organic dye which comprises an azo compound 20 represented by the following general formula (2)

    摘要翻译： 为了获得防水处理引起的二色性劣化的防水偏光膜，关键在于用于偏光膜的有机染料中相邻的磺酸基或磺酸根基团间隔适中。 在本发明的防水偏光膜的制造方法中，防水处理前的偏光膜包括由以下通式（2）表示的偶氮化合物20的有机染料，

    Azo Compound, And Dye-Containing Polarizing Film Comprising The Same
    5.
    发明申请
    Azo Compound, And Dye-Containing Polarizing Film Comprising The Same 有权
    偶氮化合物和含有染料的偏光膜包括它

    公开(公告)号：US20100226008A1

    公开(公告)日：2010-09-09

    申请号：US12739210

    申请日：2008-10-30

    申请人： Takahiro Higeta ,  Hiroaki Ohno ,  Yuichi Sadamitsu

    发明人： Takahiro Higeta ,  Hiroaki Ohno ,  Yuichi Sadamitsu

    IPC分类号： G02B5/30 ,  C07C245/10

    CPC分类号： C07D249/22 ,  C09B31/072 ,  C09B31/08 ,  C09B31/20 ,  C09B31/22 ,  C09B31/30 ,  C09B45/28 ,  C09B56/08 ,  G02B5/3025 ,  G02B5/3033

    摘要： Disclosed is an azo compound represented by the formula (1) or (2) or a salt thereof. The azo compound or the salt thereof has an excellent light-polarizing property, and is extremely useful as a dichroic dye for use in a polarizing plate that shows less color leakage in a visible light range or a polarizing plate for a liquid crystal projector comprising the aforementioned polarizing plate. (1) (2) wherein R1 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a sulfonate group or a carboxyl group; R2 to R5 independently represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or an acetylamino group; X represents a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent, or a naphthotriazole group which may have a substituent; m represents a numeral number of 1 or 2; and n represents a numeral number of 0 or 1.

    摘要翻译： 公开了由式（1）或（2）表示的偶氮化合物或其盐。 偶氮化合物或其盐具有优异的光偏振性，并且作为用于偏光板的二色性染料非常有用，该偏光板在可见光范围内显示较少的色漏，或用于液晶投影仪的偏振片包括 上述偏振片。 （1）（2）其中R1表示氢原子，低级烷基，低级烷氧基，羟基，磺酸酯基或羧基; R2至R5独立地表示氢原子，低级烷基，低级烷氧基或乙酰氨基; X表示可以具有取代基的苯甲酰氨基，可以具有取代基的苯基氨基，可以具有取代基的苯偶氮基或可具有取代基的萘并三唑基; m表示1或2的数字; n表示数字0或1。

    Disazo compound or salt thereof and polarizing film using the same
    6.
    发明授权
    Disazo compound or salt thereof and polarizing film using the same 有权
    双偶氮化合物或其盐和使用其的偏光膜

    公开(公告)号：US07070715B2

    公开(公告)日：2006-07-04

    申请号：US10642193

    申请日：2003-08-18

    申请人： Toru Ashida ,  Yoshiteru Ohta ,  Narutoshi Hayashi

    发明人： Toru Ashida ,  Yoshiteru Ohta ,  Narutoshi Hayashi

    IPC分类号： G02B5/30 ,  F21V9/14 ,  C09B31/02 ,  C09B35/02

    CPC分类号： C09B31/072

    摘要： The present invention provides a disazo compound of the formula (I) or a salt thereof wherein A represents 4-sulfophenyl or 6,8-disulfo-2-naphtyl, one of R1 and R2 represents hydrogen or methyl. The present invention also provides a dye-based polarizing film comprising a base material and the disazo compound of the formula (I) or the salt thereof contained in the base material.The disazo compound of the present invention provides a polarizing film, which is excellent in light resistance and initial polarizing performance, particularly light resistance when used as a polarizing element.

    摘要翻译： 本发明提供式（I）的双偶氮化合物或其盐，其中A代表4-磺基苯基或6,8-二磺基-2-萘基，R 1和R 2之一， 2表示氢或甲基。 本发明还提供了一种染料基偏振膜，其包含基材和式（I）的双偶氮化合物或其包含在基材中的盐。 本发明的双偶氮化合物提供了当用作偏振元件时耐光性和初始偏振性能特别是耐光性优异的偏振膜。