Styryl dyestuffs

Details Styryl dyestuffs Styryl dyestuffs

1975-09-24

1977-04-05

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260239BB, 260244R, 260283CN, 26032611R, 260465D, C07C12178

Patent

active

040161919

ABSTRACT:
The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## wherein B is a bridge member, R is hydrogen, alkyl, aryl or the remaining members of a partially saturated ring fused to the ring a, Z is preferably CN and n denotes the numbers 3 to 5. The dyestuffs are outstandingly suitable for the dyeing of hydrophobic fiber materials in yellow shades. The dyeings are distinguished by excellent fastness to light.

REFERENCES:
patent: 3784558 (1974-01-01), Peter et al.
patent: 3920720 (1975-11-01), Beecken

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