POLARIZING ELEMENT, AND POLARIZING PLATE, OPTICAL MEMBER AND LIKE EACH USING SAID POLARIZING ELEMENT

Title:

POLARIZING ELEMENT, AND POLARIZING PLATE, OPTICAL MEMBER AND LIKE EACH USING SAID POLARIZING ELEMENT

Document Type and Number:

WIPO Patent Application WO/2020/050333

Kind Code:

A1

Abstract:

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.)

Inventors:

MOCHIZUKI NORIAKI (JP)
HATTORI YU (JP)
NAKAMURA MITSUNORI (JP)
HIGETA TAKAHIRO (JP)

Application Number:

PCT/JP2019/034840

Publication Date:

March 12, 2020

Filing Date:

September 04, 2019

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Assignee:

NIPPON KAYAKU KK (JP)
POLATECHNO CO LTD (JP)

International Classes:

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

Domestic Patent References:

WO2015152026A1	2015-10-08
WO2018079651A1	2018-05-03
WO2017135391A1	2017-08-10
WO2016186183A1	2016-11-24
WO2019117131A1	2019-06-20

Foreign References:

JP2017072823A

2017-04-13

Attorney, Agent or Firm:

ASAMURA PATENT OFFICE, P.C. (JP)

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