Disazo dyes having aminobenzoylamino group

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

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252585, 8506, C09B 4524, F21V 914

Patent

active

054809770

ABSTRACT:
The invention is directed to a novel disazo compound represented by the formula (I) ##STR1## wherein Q is a substituted or unsubstituted phenyl or naphthyl group; Me is copper, nickel, zinc or iron; and Z is hydrogen, lower alkyl, lower alkoxyl, sulfo, or substituted or unsubstituted amino; and also to a polarizing film having said disazo compound incorporated into a polarizing film base. The polarizing film exhibits high polarizing activities comparable to those of an iodine-containing polarizing film, and also has excellent durability.

REFERENCES:
patent: 4514559 (1985-04-01), Sato
patent: 4988805 (1991-01-01), Kunde
patent: 5233027 (1993-08-01), Hinrichs et al.
patent: 5354512 (1994-10-01), Ogino et al.

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