Metallized polyazo dyes derived from a coupling component obtain

Details Metallized polyazo dyes derived from a coupling component obtain Metallized polyazo dyes derived from a coupling component obtain

1976-08-25

1978-10-31

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260144, 260145R, 260145A, 260145B, 260146R, 260147, 260148, 260155, 260159, 260160, 260161, 260166, 260167, 260168, 260171, 260172, 260173, 260175, 260177, 260178, 260181, 260184, 260187, 260465D, 562474, 562475, 562476, 562477, C09B 4524, C09B 4534

Patent

active

041234286

ABSTRACT:
Metal complex polyazo dyes having, as a coupling component radical, the radical of a coupling component K, being the product of the condensation, under acidic conditions, of the formaldehyde with a compound or mixture of compounds of formula (a), ##STR1## AND/OR A COMPOUND OR MIXTURE OF COMPOUNDS OF FORMULA (B), ##STR2## WHEREIN EACH R.sub.1 , R.sub.2, R.sub.3 and R.sub.4 is independently is hydrogen, halogen, hydroxy or optionally substituted alkyl or alkoxy, and

REFERENCES:
patent: 3759892 (1973-09-01), Wicki

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