Rubine disazo acid dyes for polyamides

Details Rubine disazo acid dyes for polyamides Rubine disazo acid dyes for polyamides

1977-12-23

1979-11-06

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260177, 260184, 260185, 260187, 260189, 260190, 8 41B, C09B 3104, C09B 3106, C09B 3108

Patent

active

041735650

ABSTRACT:
Dyes of the formula ##STR1## wherein B and D are each independently 1,4-phenylene or 1,4-naphthylene; M is hydrogen, lithium, sodium, potassium or ammonium;

REFERENCES:
patent: 3823131 (1974-07-01), Stingl
Colour Index, vol. 4, 1971, p. 4228, C.I. 26200.
Crompton et al., "Derwent-Netherlands Patents", No. 08569x/05 (1974).
ICI, "Derwent-Belgian Patents", No. 22489w/14, (1975).

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