Disazo dyes and a process of dyeing paper therewith

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

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8681, 8929, C09B 31072, D21H 2128

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active

055592171

ABSTRACT:
The dyestuffs of the formula ##STR1## in which A, R.sub.1, M and n are as defined in claim 1, are suitable for dyeing paper with good light-fastness.

REFERENCES:
patent: 4808192 (1989-02-01), Marita et al.
patent: 5211719 (1993-05-01), K aser
patent: 5225545 (1993-07-01), Lauk
patent: 5288294 (1994-02-01), K aser
Chem. Abst, 77: 63263 of DE 2,051,303 (1972).
Color Index, The Society of Dyes & Coloureds 3rd Ed. 1971 pp. 2206, 4253.

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