Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylna

Details Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylna Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylna

1975-12-17

1977-09-06

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 41R, 8 41A, 8 49, 8 542, 8177AB, 260146R, 260146D, 260147, 260152, 260154, 260155, 260156, 260157, 260158, 260160, 260165, 260174, 260175, 260178, 260179, D21H 146

Patent

active

040465020

ABSTRACT:
Azo dyes of the formula ##STR1## wherein X represents a direct bond or a divalent radical,

REFERENCES:
patent: 3467645 (1969-09-01), Keller et al.
patent: 3555004 (1971-01-01), Mueller et al.

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