Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1984-03-16
1986-04-01
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534560, 534583, 534591, 162162, C09B 29033, C09B 2933, C09B 6720, D06P 354
Patent
active
045799393
ABSTRACT:
Yellow dyes from substituted 2-aminothiophene and acyclic active methylene coupling components are of particular interest for dyeing polyester fibers. The dyes have the formula: ##STR1## wherein: X is a group such as alkyl, allyloxy, alkoxy, aryl or the like; Y is hydrogen, alkyl, or aryl; Z is alkyl, aryl, alkylsulfonyl, cyano or COX where X is defined above; R is cyano, carbamyl, alkanoyl, aroyl, or the like; R.sub.1 is selected from the R groups and ##STR2## wherein R.sub.2 represents the atoms necessary to complete an azole radial selected from benzothiazole, benzimidazole, benzoxazole, 1,3,4-oxadiazole, 1,3,4-thiadiazole, and pyrazole; and wherein the hydrocarbon moieties of each of the above radicals or groups may be substituted with up to three of --OH, alkoxy, hydroxyalkoxy, alkylcarbamyl, or the like.
REFERENCES:
patent: 2857373 (1958-10-01), Straley et al.
patent: 3245980 (1966-04-01), Stright
patent: 3254072 (1966-05-01), Stright
patent: 3274171 (1966-09-01), Anderson et al.
patent: 3639385 (1972-02-01), Weaver et al.
patent: 4255326 (1981-03-01), Giles et al.
Coates, Jr. Clarence A.
Weaver Max A.
Eastman Kodak Company
Higel Floyd D.
Spurrell Donald W.
Thomsen J. Frederick
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