Water-soluble azo compounds

Details Water-soluble azo compounds Water-soluble azo compounds

1996-06-05

1998-04-14

Powers, Fiona T.

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

Organic compounds

Azo

534690, C09B 5604, G02B 530

Patent

active

057392986

ABSTRACT:
Novel azo compounds having the specific structural formula (1) or (3) set out below, water-soluble dyes containing the compounds, and polarizing films containing the water-soluble dyes: ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom or a hydroxyl, C.sub.1-2 alkyl, C.sub.1-2 alkoxyl, C.sub.1-2 acylamino, cyano, carboxyl or sulfonic acid group; R.sub.3 and R.sub.8 individually represent a hydrogen atom or a hydroxyl, C.sub.1-2 alkyl or C.sub.1-2 alkoxyl group; R.sub.2 and R.sub.4 individually represent a hydrogen atom or a hydroxyl, C.sub.1-2 alkyl, C.sub.1-2 alkoxyl or C.sub.1-2 acylamino group; R.sub.5 represents a hydrogen atom or a carboxyl or C.sub.1-2 alkoxyl group; R.sub.6 represents a hydrogen atom, a hydroxyl, amino, methylamino, .beta.-hydroxyethylamino or C.sub.1-2 acylamino group, or a phenylamino or benzoylamino group which the phenyl nucleus may be substituted by one or more nitro, amino, hydroxyl, C.sub.1-2 alkyl, carboxyl and/or sulfonic acid groups and/or chlorine atoms; R.sub.7 represents a hydroxyl or amino group and substitutes at o- or p-position relative to the azo group; m stands for 0 or 1; p stands for 0 or 1; q stands for 0, 1 or 2; and M represents a copper, nickel, zinc and iron atom.

REFERENCES:
patent: 2175815 (1939-10-01), Schindhelm
patent: 2741655 (1956-04-01), Riat et al.
patent: 4514559 (1985-04-01), Sato et al.
patent: 4774141 (1988-09-01), Matsui et al.
patent: 4859039 (1989-08-01), Okumura et al.
patent: 5007942 (1991-04-01), Claussen et al.
patent: 5272259 (1993-12-01), Claussen et al.
patent: 5423100 (1995-06-01), Misawa et al.

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