偏光素子並びにそれを用いた偏光板及び光学部材等

Japanese Patent JP7448477

B2

A polarizing element which contains an azo compound represented by formula (1) or a salt thereof, an azo compound represented by formula (2) or a salt thereof, and a base material. (In formula (1), Ar1 represents a substituted phenyl group or a substituted naphthyl group; each of Rr1-Rr4 independently represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkoxyl group or a C1-4 alkoxyl group having a sulfo group; Xr1 represents an optionally substituted amino group, an optionally substituted phenylamino group, an optionally substituted phenylazo group, an optionally substituted benzoyl group, an optionally substituted benzoylamino group or an optionally substituted naphthotriazole group; and m represents 0 or 1.) (In formula (2), Ab1 represents a substituted phenyl group or a substituted naphthyl group; each of Rb1-Rb5 independently represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkoxyl group or a C1-4 alkoxyl group having a sulfo group; and Xb1 represents an optionally substituted amino group, an optionally substituted phenylamino group, an optionally substituted phenylazo group, an optionally substituted benzoyl group, an optionally substituted benzoylamino group or an optionally substituted naphthotriazole group.)

Noriaki Mochizuki
Yuu Hattori
Mitsunori Nakamura
Takahiro Hishitada

JP2020541280A

March 12, 2024

September 04, 2019

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NIPPON KAYAKU KABUSHIKI KAISHA

G02B5/30; C09B31/08; C09B31/30; C09B35/50; C09B67/22; G02F1/1335

JP2017072823A

WO2015152026A1
WO2018079651A1
WO2017135391A1
WO2016186183A1
WO2019117131A1

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