Disazo acid dyestuffs for polyamide fibers applicable in neutral

Details Disazo acid dyestuffs for polyamide fibers applicable in neutral Disazo acid dyestuffs for polyamide fibers applicable in neutral

1995-01-12

1996-06-18

Powers, Fiona T.

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

Organic compounds

Azo

8531, 8681, 8917, 8924, C09B 31153, D06P 306

Patent

active

055278876

ABSTRACT:
Disazo acid dyestuff with the following general formula: ##STR1## wherein R represents H, C.sub.n H.sub.2n+1 wherein n is a natural number between 1 and 4, or (CH.sub.2).sub.m OR' wherein m is a natural number between 1 and 4 and R' represents C.sub.p H.sub.2p+1 wherein p is an integral number between 0 and 4; wherein R" represents H, CN or COOR wherein R has the same definition as above. The sulfo group may be at any position of the benzene ring.

REFERENCES:
patent: 3979378 (1976-09-01), Gnad et al.
patent: 4668774 (1987-05-01), Loeffler et al.

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