Patent ID: 9244194
Filing Date: 2016-01-26
CPC Classification: B32B,C07C,C07D,C09B,C09K,G02B,G02F

Claim Text:
1. A dye-based polarizing film containing in a raw film for a polarizing film, an azo compound and/or a salt thereof, which is represented by the following formula (7): in the formula (7), A represents a naphthyl group having a substituent; R wherein A is a naphthyl group represented by the following formula (6): in the formula (6), R wherein the phenylamino group is represented by the following formula (2): in the formula (2), R wherein the phenylazo group is represented by the following formula (5): in the formula (5), R wherein the naphthotriazole group is represented by the following formula (4): in the formula (4), m represents 1 or 2.