Naphtholactam dyestuffs

Details Naphtholactam dyestuffs Naphtholactam dyestuffs

1977-05-17

1979-03-27

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603269, 2603265SA, 2603265SM, 26032662, 2603068R, 260325R, 260302H, 260302R, 260305, 8 542, 8176, 260307D, 260308A, 544142, 544 58, 544372, 546200, 546272, 548306, C07D20956

Patent

active

041465415

ABSTRACT:
A dyestuff of the formula ##STR1## in which R represents alkyl, alkenyl, cycloalkyl, aralkyl, aryl or, preferably, hydrogen, M represents hydrogen or a cation, T represents the radical of a thiophene and A and B can carry non-ionic substituents and/or a --COOH group.
The new dyestuffs give fast and brilliant yellow shades on polyester fibers.

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