Iron complexes of azo dyes obtained from naphthylsulfonic acid,

Details Iron complexes of azo dyes obtained from naphthylsulfonic acid, Iron complexes of azo dyes obtained from naphthylsulfonic acid,

1987-03-13

1989-01-31

Hollrah, Glennon H.

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

Organic compounds

Azo

534688, 8425, 8437, 8685, C09B 4534, C09B 4532, D06P 110

Patent

active

048016950

ABSTRACT:
Iron complex dyes which are particularly suitable for dyeing leather in brown shades are obtained by coupling a naphthylaminesulfonic acid with resorcinol, subsequently coupling the reaction product with 4-nitro-2-aminophenol and metallizing with an iron compound.

REFERENCES:
patent: 2117707 (1937-01-01), Daudt
patent: 2136650 (1938-11-01), Crossley et al.
patent: 2200445 (1940-05-01), Fellmer
patent: 4547566 (1985-10-01), Bergmann et al.
Venkataraman, The Chemistry of Synthetic Dyes, vol. I, pp. 415-416 (1952).

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