Tetrakisazo compound and a polarizing film containing the same

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

1995-09-13

1997-08-19

Powers, Fiona T.

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

Organic compounds

Azo

534684, 534685, 534714, 534806, 252585, 8506, C09B 3326, G02B 530

Patent

active

056590202

ABSTRACT:
A tetrakisazo compound of the formulae: ##STR1## wherein Q.sup.1 represents a phenyl or naphthyl group, Q.sup.2 represents a phenyl which is substituted by at least one substituent selected from a hydroxy group and an amino group, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each independently represents a hydrogen atom, a hydroxy group, a lower alkyl group, a lower alkoxy group or a substituted or unsubstituted amino group, or a salt thereof, and a polarizing film which comprises the tetrakisazo compound or a salt thereof and which may further comprise other organic dyes.

REFERENCES:
patent: 2215087 (1940-07-01), Schweitzer
patent: 2858302 (1958-10-01), Iselin et al.
Derwent Abstract of JP 57-036693, Feb. 27, 1982.
Derwent Abstract of JP 01-167,703, Jul. 3, 1989.

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