Azo compound and salt thereof, and dye-containing polarizing...

Details Azo compound and salt thereof, and dye-containing polarizing... Azo compound and salt thereof, and dye-containing polarizing...

2011-04-26

2011-04-26

Douyon, Lorna M (Department: 1764)

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Azo, acridone, or quinone dye

C008S459000, C008S506000, C008S648000, C008S664000, C008S681000, C008S687000, C252S582000, C252S585000, C359S491010, C534S573000, C534S689000, C534S704000

Reexamination Certificate

active

07931702

ABSTRACT:
Disclosed is an azo compound represented by the general formula (1) or a salt thereof:wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n represents 1 or 2. Also disclosed are a dye-containing polarizing film and a dye-containing polarizing plate, each of which comprises a polarizing film base material and the azo compound contained in the base material.

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