Brown vat dye and its preparation

Details Brown vat dye and its preparation Brown vat dye and its preparation

1980-06-02

1982-04-06

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

546 30, 8650, C07C 5018, C09B 100

Patent

active

043235107

ABSTRACT:
A vat dye obtained by heating a condensation product, which itself has been prepared by heating 3,9-di-(1-anthraquinonylamino)-benz[d,e]anthrone in an aluminum chloride/picoline or aluminum chloride/quinoline melt in the presence of sulfuryl chloride or thionyl chloride, in a melt of an alkali metal hydroxide in an alcohol or glycol or aqueous glycol.
The dye gives deep clear brown dyeings having good fastness characteristics.

REFERENCES:
patent: 2791587 (1957-05-01), Basel et al.
patent: 3138613 (1964-06-01), Weber et al.
patent: 3418321 (1968-12-01), Gordon et al.
patent: 3446810 (1969-05-01), Dien et al.
patent: 3741994 (1973-06-01), Fujii et al.
B.I.O.S. Final Report, No. 987, p. 76, "German Dyestuffs and Intermediates Industry Vat Dyestuffs and Intermediates".
Final Report, No. 1313 II, p. 142, "German Dyestuffs and Dyestuff Intermediates, Including Manufacturing Processes Plant Design and Research Data".

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