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    Azo compound, dye-based polarizing film containing same, and polarizing plate
    11.
    发明授权
    Azo compound, dye-based polarizing film containing same, and polarizing plate 有权

    公开(公告)号：US10150871B2

    公开(公告)日：2018-12-11

    申请号：US15129236

    申请日：2015-03-27

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

    Inventor： Takahiro Higeta ,  Takuto Nishiguchi ,  Mitsunori Nakamura

    IPC: G02B5/30 ,  C09B31/30 ,  G02F1/1335 ,  C09B31/08 ,  C09B31/20 ,  C09B31/22 ,  G02B1/04

    Abstract: The present invention relates to an azo compound that is useful as a dichroic pigment used in a polarizing plate having excellent polarizing performance and durability and having little color leakage in a visible light region, and used in a neutral gray polarizing plate for vehicle mounting that uses the aforementioned polarizing plate. More specifically, the invention relates to an azo compound that is represented by formula (1) [In the formula, R1-R4 each independently represent a hydrogen atom, a C1-5 alkyl group, a C1-5 alkoxy group, a sulfo group, or a C1-5 alkoxy group having a sulfo group, X represents an amino group having a substituent, 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, m represents 3 or 4, n represents 1 or 2, and p represents 1, 2, or 3.], or to a salt of said compound.

    Azo compound, dye-based polarizing film and polarizing plate
    14.
    发明授权
    Azo compound, dye-based polarizing film and polarizing plate 有权
    偶氮化合物，染料偏振片和偏振片

    公开(公告)号：US09341746B2

    公开(公告)日：2016-05-17

    申请号：US14813163

    申请日：2015-07-30

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

    Inventor： Takahiro Higeta ,  Takuto Nishiguchi

    IPC: G02B1/08 ,  C09B31/30 ,  G02B1/04 ,  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.

    Abstract translation: 本发明涉及由下式（1）表示的偶氮化合物，[其中，A表示可以具有取代基的苯基，R 1〜R 6各自独立地表示氢原子，碳原子数为 1〜5，碳原子数1〜5的烷氧基，磺基或具有磺基，碳原子数1〜5的烷氧基，X表示可具有取代基的氨基 ，可以具有取代基的苯甲酰基氨基，可以具有取代基的苯基氨基，可以具有取代基的苯偶氮基，或可以具有取代基的萘并三唑基，或其盐和偏振膜，以及 含有它的偏振片。

    Achromatic Polarization Element, And Polarization Plate
    15.
    发明申请
    Achromatic Polarization Element, And Polarization Plate 审中-公开
    消色差极化元件和极化板

    公开(公告)号：US20160041322A1

    公开(公告)日：2016-02-11

    申请号：US14781714

    申请日：2013-12-04

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

    Inventor： Noriaki Mochizuki

    IPC: G02B5/30 ,  C09B45/28 ,  C09B35/037 ,  G02B1/08 ,  G02F1/1335

    CPC classification number: G02B5/3033 ,  C09B35/037 ,  C09B45/28 ,  C09B67/0046 ,  G02B1/08 ,  G02F1/133528 ,  Y10T428/1041

    Abstract: [Problem] To provide a highly-transmissive polarization plate that can express achromatic white when a polarization element is arranged parallel, to an absorbing axis, and achromatic black when the polarization element is arranged orthogonal to the absorbing axis.[Solution] a* and b* values, which define, the hue of a polarization element or a polarization plate using JIS.Z.8729, are adjusted such that the absolute value of the a* and b* values is: less than 1 during a single-body transmittance measurement; less than 2 when two sheets of a base material are arranged parallel, to the absorbing axis direction and the a* and b* values are measured; and less than 2 when two sheets of the base material are arranged orthogonal to the absorbing axis direction and the a* and b* values are measured.

    Abstract translation: 提供一种当偏光元件平行地布置成吸收轴时可以表现无色白色的高透光性偏振片，以及当偏振元件与吸收轴正交配置时的非彩色黑色。 [解决方案] a *和b *值，其定义了使用JIS.Z.8729的偏振元件或偏振板的色调，使得a *和b *值的绝对值为：小于1 在单体透过率测量中; 当两片基材平行布置在吸收轴方向上时，小于2，并测量a *和b *值; 并且当两片基材垂直于吸收轴方向布置并且测量a *和b *值时小于2。

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