Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-11-18
1977-09-13
Higel, Floyd D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260206, 260207, 2602071, 260152, 260156, 260465R, 260508, 260577, C09B 2908, D06P 106, D06P 306, D06P 316
Patent
active
040481549
ABSTRACT:
Dyestuffs of the formula ##STR1## wherein R.sub.1 represents a non-ionic substituent, R.sub.2 and R.sub.3 represent hydrogen, alkyl, acyl or aryl and wherein the two benzene rings A and B can in addition also be substituted by the non-ionic substituents as well as their preparation and their use for dyeing and printing fiber materials containing nitrogen, especially fiber materials consisting of polyamides, to give level orange to red dyeings with good dyestuff yields.
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Colour Index, Third Edition, vol. 4, p. 4043, #'s 13010 and 13025 and p. 4047, #13150 (1971).
Bayer Aktiengesellschaft
Higel Floyd D.
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