Azo-stibene condensates as leather dyes

Details Azo-stibene condensates as leather dyes Azo-stibene condensates as leather dyes

1984-04-06

1988-05-03

Higel, Floyd D.

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

Organic compounds

Azo

534589, 534678, 534681, C09B 4300, C09B 5604, C09B 5606, P06P 332

Patent

active

047421622

ABSTRACT:
Condensates of an azo compound of the formula ##STR1## wherein n is 1 or 2, with the stilbene compound of the formula ##STR2## in the molar ratio of 1:1 to 2:1, dye leather in a yellowish-brown shade, which penetrate deeply into the leather, and give fast dyeings.

REFERENCES:
patent: 2518023 (1950-08-01), Keller et al.
patent: 4006130 (1977-02-01), Ditzer
patent: 4141889 (1979-02-01), Allan
patent: 4169832 (1979-10-01), Wicki et al.

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