US 2016/0103362 A1 · Azo Compound and Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same

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.

Claims25

Dependent claims

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 phenylamino group having a substituent, a phenylazo group having a substituent, or a naphthotriazole group having a substituent and/or a salt thereof, wherein the phenylazo group having a substituent is represented by the following formula (5):
in the formula (5), R10 to R12 each independently represent a hydrogen atom, a hydroxy group, an alkyl group having a carbon atom number of 1 to 5, an alkoxy group having a carbon atom number of 1 to 5, an amino group or a substituted amino group.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/969,587Filed 15 Dec 2015

Priority

JP 2011-0237487 Feb 2011

Published

14 Apr 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification23 codes

G02B 1/08
Optical elements characterised by the material of which they are made; Optical coatings for optical elements: made of polarising materials
C07C 309/47
Containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton: having at least one of the sulfo groups bound…
C07D 249/16
Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms: condensed with carbocyclic rings…
C09B 31/30
Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling: other polyazo dyes

Azo Compound and Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same

Life of this patent

Azo Compound and Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same

Life of this patent

Abstract

Claims25