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    Azo Compound, Dye-Based Polarizing Film And Polarizing Plate
    21.
    发明申请
    Azo Compound, Dye-Based Polarizing Film And Polarizing Plate 审中-公开

    公开(公告)号：US20160109619A1

    公开(公告)日：2016-04-21

    申请号：US14969517

    申请日：2015-12-15

    Applicant: Polatechno Co., Ltd. ,  Nippon Kayaku Kabushiki Kaisha

    Inventor： Takahiro Higeta ,  Takuto Nishiguchi

    IPC: G02B1/08 ,  G02B1/14 ,  C09B31/30 ,  G02B5/30

    CPC classification number: G02B1/08 ,  B32B2457/202 ,  C09B31/30 ,  G02B1/04 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/305 ,  Y10T428/1041 ,  C08L29/04

    Abstract: The present invention relates to an azo compound represented by the following formula (1), [wherein, A represents a phenyl group which may have a substituent, R1 to R6 each independently represent a hydrogen atom, an alkyl group having a carbon atom number of 1 to 5, an alkoxy group having a carbon atom number of 1 to 5, a sulfo group, or an alkoxy group having a sulfo group and a carbon atom number of 1 to 5, and X represents an amino group which may have a substituent, 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] or/and a salt thereof and to a polarizing film and a polarizing plate which contain it. The polarizing plate of the present invention using the above-described azo compound has a high polarization ratio and a high contrast, causes less color-leakage in a visible light region, is excellent in optical performance and durability, and can be widely used in liquid crystal displays such as liquid crystal projectors, and the likeThe formula (1)

    Azo Compound And Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same
    22.
    发明申请
    Azo Compound And Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same 审中-公开
    偶氮化合物及其盐，以及含有它们的染料偏光膜和偏光板

    公开(公告)号：US20150337134A1

    公开(公告)日：2015-11-26

    申请号：US14813166

    申请日：2015-07-30

    Applicant: Nippon Kayaku Kabushiki Kaisha ,  Polatechno Co., Ltd.

    Inventor： Takahiro Higeta ,  Takuto Nishiguchi

    IPC: C09B31/30 ,  G02F1/1335 ,  G02B5/30 ,  G02B1/08

    CPC classification number: G02B1/08 ,  B32B2457/202 ,  C07C309/47 ,  C07D249/16 ,  C09B31/30 ,  C09B49/04 ,  C09B56/00 ,  C09B67/0046 ,  C09B67/0055 ,  C09B67/0097 ,  G02B1/04 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/133533 ,  Y10T428/1041

    Abstract: The present invention relates to an azo compound represented by the following formula (1) [wherein, A represents a naphthyl group having a substituent, R1 to R6 each independently represent a hydrogen atom, an alkyl group having a carbon atom number of 1 to 5, an alkoxy group having a carbon atom number of 1 to 5, a sulfo group, or an alkoxy group having a sulfo group and a carbon atom number of 1 to 5, and X represents a benzoylamino group having a substituent, a phenylamino group having a substituent, a phenylazo group having a substituent, or a naphthotriazole group having a substituent] and a salt thereof. By using the azo compound or a salt thereof of the present invention, a neutral color polarizing plate and a color polarizing plate for a liquid crystal projector being excellent in polarization performance and durability and having less color leakage in a visible light region can be provided.

    Abstract translation: 本发明涉及由下式（1）表示的偶氮化合物[其中，A表示具有取代基的萘基，R 1〜R 6各自独立地表示氢原子，碳原子数为1〜5的烷基 ，碳原子数为1〜5的烷氧基，磺基或具有磺基，碳原子数为1〜5的烷氧基，X表示具有取代基的苯甲酰基氨基，苯基氨基具有 取代基，具有取代基的苯偶氮基或具有取代基的萘并三唑基]及其盐。 通过使用本发明的偶氮化合物或其盐，可以提供一种中性色偏振片和用于液晶投影仪的偏振性能和耐久性优异并且在可见光区域中具有较少的颜色泄漏的彩色偏振片。

    Dye-Based Polarizing Element And Polarizing Plate
    23.
    发明申请
    Dye-Based Polarizing Element And Polarizing Plate 审中-公开
    染料偏光元件和偏光板

    公开(公告)号：US20140085721A1

    公开(公告)日：2014-03-27

    申请号：US14122029

    申请日：2012-05-22

    Applicant: POLATECHNO CO., LTD. ,  NIPPON KAYAKU KABUSHIKI KAISHA

    Inventor： Noriaki Mochizuki ,  Takahiro Higeta ,  Takuto Nishiguchi

    IPC: G02B5/30

    CPC classification number: G02B5/3033 ,  C09B33/28 ,  C09B45/28 ,  G02F1/133528

    Abstract: To develop a polarizing element having a good, polarizing property, and also having a high durability without use of a raw material belonging to a specified, chemical substance such as dianisidine.Provided is a polarizing element that comprises a film of a polyvinyl alcohol resin or a derivative thereof containing dichromatic pigments, and having been stretched, in which at least one of the dichromatic pigments is an azo compound represented by Formula (1) or a salt thereof. (wherein, A represents a naphtyl group or a benzene ring that is unsubstituted, or has one or more of substituents selected from a group consisting of a sulfo group, an alkyl group, an alkoxy group, an alkoxy group having a sulfo group, a carboxy group, a nitro group, an amino group, and a substituted amino group; and, R1, R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a sulfo group, or an alkoxy group having a sulfo group,)

    Abstract translation: 为了开发具有良好的偏振性，并且在不使用属于指定的化学物质例如二茴香胺的原料的情况下也具有高耐久性的偏振元件。 提供了一种偏振元件，其包含聚乙烯醇树脂或其衍生物的含有二色性颜料的膜并被拉伸的偏振元件，其中至少一种二色性颜料是由式（1）表示的偶氮化合物或其盐 。 （其中，A表示未被取代的萘基或苯环，或具有一个或多个选自磺基，烷基，烷氧基，具有磺基的烷氧基， 羧基，硝基，氨基和取代的氨基; R 1，R 2，R 3和R 4各自独立地表示氢原子，烷基，烷氧基，磺基或烷氧基，其具有 一个磺基，）

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