4-Substituted benzothiazol-2-ylazo-N-c8-14-alkykl-N-(2'-cyanoeth

Details 4-Substituted benzothiazol-2-ylazo-N-c8-14-alkykl-N-(2'-cyanoeth 4-Substituted benzothiazol-2-ylazo-N-c8-14-alkykl-N-(2'-cyanoeth

1987-03-13

1989-12-26

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

534581, 534573, 534788, 8691, C09B 29045, C09B 29085, C09B 6722, D06P 118

Patent

active

048895350

ABSTRACT:
Compounds of the formula ##STR1## and mixtures thereof, wherien p1 R.sub.1 is hydrogen, chloro or bromo, p1 R.sub.2 is hydrogen, chloro, bromo or nitro, p1 R.sub.3 is hydrogen, chloro, bromo, nitro or --SCN, p1 R.sub.4 is hydrogen, chloro or bromo, p1 R.sub.5 is hydrogen or C.sub.1-4 alkyl, and p1 R.sub.5 is C.sub.8-14 alkyl,
with the provisos that (i) at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is other than hydrogen, (ii) when R.sub.3 is nitro or --SCN, R.sub.2 is other than nitro, and (iii) when two or more of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are halo, then R.sub.3 is one of those halos, are useful as disperse dyes for dyeing substrates such as synthetic and semi-synthetic, hydrophobic, high molecular weight organic materials.

REFERENCES:
patent: 3502645 (1970-03-01), Carmichael
patent: 4488992 (1984-12-01), Yoshinaga et al.
patent: 4619893 (1986-10-01), Takagi et al.

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