Vat dyes

Details Vat dyes Vat dyes

1992-10-26

1994-08-02

Richter, Johann

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

Organic compounds

Polycyclo ring system containing anthracene configured ring...

552274, 552282, 552283, 552281, C09B 340, C09B 344

Patent

active

053347340

ABSTRACT:
Vat dyes for dyeing and printing cellulose material have the formula ##STR1## where P=pyranthrone structure, A=1,4-or 1,5-anthraquinonyl, V=a violanthronyl or isoviol-anthronyl radical which may carry up to 2 chlorine or bromine atoms as substitutents, R=hydrogen, the acyl radical of an aliphatic C.sub.1 -C.sub.6 -carboxylic acid or the acyl or sulfonyl radical of an aromatic carboxylic or sulfonic acid, Hal=chlorine or bromine, m=from 0 to 3, n=from 1 to 4, and p=from 0 to 3, with the proviso that the sum m+n+p is not greater than 4.

REFERENCES:
patent: 1994136 (1935-03-01), Kunz et al.
patent: 4547575 (1985-10-01), Tzikas

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