Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-04-04
1977-02-15
Warren, Charles F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260456A, 260463, 260475P, 260476R, 260490, C09B 2908, C09B 2926, C09B 4318
Patent
active
040082121
ABSTRACT:
A monoazo dye mixture which is the reaction product of the diazo base of 7-amino-4-nitrobenzotriazole and a coupling component of the formula ##STR1## wherein R.sub.1 is H or lower alkoxy; R.sub.2 is an alkyl radical having 1-4 carbon atoms, phenyl, tolyl, or chlorophenyl; and n has a value of 1-2. The hydroxyalkyl groups of the coupling component are reacted prior or subsequent to coupling with at least stoichiometric quantities of both: (1) a lower alkyl chlorocarbonate, lower alkanoyl chloride, benzoylchloride, methylbenzoylchloride, ethylbenzoyl chloride, phthaloyl chloride, isophthaloyl chloride, ter phthaloyl chloride or lower alkylsulfonyl chloride and (2) a mono- or di-lower alkyl formamide or acetamide, at a temperature of 30.degree.-100.degree. C until the reaction mixture is substantially free of unreacted hydroxyalkyl groups. The dye mixture produces excellent dyeings on polyester fabric materials.
REFERENCES:
patent: 2675376 (1954-04-01), Scalera et al.
patent: 3116276 (1963-12-01), Gross et al.
American Color & Chemical Corporation
Warren Charles F.
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