1:2 chromium or cobalt complex axo dyes containing at least one

Details 1:2 chromium or cobalt complex axo dyes containing at least one 1:2 chromium or cobalt complex axo dyes containing at least one

1989-08-28

1990-10-09

Higel, Floyd D.

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

Organic compounds

Azo

534697, 534707, 534712, 534775, 534781, 534791, 534582, 534602, 544319, 544326, C09B 4548, C09B 4500, D06P 139, D06P 332

Patent

active

049621912

ABSTRACT:
Dyes suitable for dyeing a wide range of textile and non-textile materials, in particular for dyeing leather and pelts, having, in the form of the free acid, the formula ##STR1## wherein D.sub.1 and D.sub.2 are each independently of the other the radical of a diazo component of the benzene or naphthalene series which carries a hydroxy or carboxy in ortho-position to the azo group and which may or may not be further substituted,

REFERENCES:
patent: 1606209 (1926-11-01), Montmollin et al.
patent: 3481918 (1969-12-01), Straley et al.
patent: 3492287 (1970-01-01), Wunderlich et al.
patent: 3939140 (1976-02-01), Meininger et al.
patent: 3970615 (1976-07-01), Schutz et al.
Oostveen et al., Chemical Abstracts, vol. 87, No. 184449d (1977).
Poli, Chemical Abstracts, vol. 93, No. 186398j (1980).
F. Yoneda et al., J. Chem. Soc. Perkin I, 1547-1550 (1976).

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