Disulfimide disazo dyestuffs

Details Disulfimide disazo dyestuffs Disulfimide disazo dyestuffs

1973-12-05

1976-07-27

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260174, 260178, 260184, 260187, C09B 3302, D06P 324

Patent

active

039717704

ABSTRACT:
Disazo dyestuffs free of sulfonic acid groups of the formula ##SPC1##
Are disclosed in which R.sub.1 is phenyl, alkyl phenyl or C.sub.1 -C.sub.4 -alkyl; R.sub.2 is chlorine, bromine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy; R.sub.3 and R.sub.4 which can be either identical or different, are hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy; R.sub.5, R.sub.6 and R.sub.7, which can be either identical or different, are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, carboxylic amide, carboxyl, or carboxylic ester; Y is hydroxyl or NR.sub.8 R.sub.9 ; R.sub.8 and R.sub.9 can be identical or different and are C.sub.1 -C.sub.4 -alkyl optionally substituted by hydroxyl or nitrile, or benzyl; and n is 0, 1 or 2. The dyestuffs are used in dyeing N-containing fiber materials.

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patent: 3037014 (1962-05-01), Liechti
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patent: 3134766 (1964-05-01), Merian et al.
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patent: 3251822 (1966-05-01), May et al.
patent: 3254073 (1966-05-01), Wallace et al.
patent: 3293240 (1966-12-01), Koike et al.
patent: 3310550 (1967-03-01), Liechti

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