Azo compound and a polarizing film containing the same

Details Azo compound and a polarizing film containing the same Azo compound and a polarizing film containing the same

1996-02-20

1997-12-23

Einsmann, Margaret

Bleaching and dyeing; fluid treatment and chemical modification

Drawing or stretching of preform with dyeing, process or...

8506, 8681, 8685, 8687, 534683, 534684, 534685, 534688, 534678, 534666, 534671, 534827, 534714, 534716, 252585, 359491, C09B 31068, G02B 530, D06P 300

Patent

active

057002967

ABSTRACT:
An azo compound of the following formulae (I) or (II): ##STR1## wherein Q.sub.1 represents a phenyl group or a naphthyl group, Q.sub.2 represents a phenyl group; R represents hydroxy group; R.sub.1 and R.sub.2 each independently represent a hydrogen atom, a hydroxy group, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.4 alkoxy group or a halogen atom; R.sub.3 and R.sub.4 each independently represent a hydrogen atom, a hydroxy group, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.4 alkoxy group or a substituted amino group; and X represents --NH--, --NHCO-- or --N.dbd.N--; or a salt thereof;
and a polarizing film containing the same.

REFERENCES:
patent: 4514559 (1985-04-01), Sato et al.
patent: 5310509 (1994-05-01), Okada et al.
patent: 5354512 (1994-10-01), Ogino et al.
patent: 5480977 (1996-01-01), Ogino et al.
Chemical Abstracts Service Registry Handbook Number Section 1979 Supplement Title Page With Printout of Structure from Search of 26 Sep. 1996.

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