Thermally transferable fluorine-containing AZO dyes

Details Thermally transferable fluorine-containing AZO dyes Thermally transferable fluorine-containing AZO dyes

1993-12-07

1994-09-27

Hess, B. Hamilton

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

428195, 428913, 428914, B41M 5035, B41M 538

Patent

active

053507312

ABSTRACT:
The present invention provides fluorine-containing arylazoanaline dyes that are useful in thermal transfer systems. Specifically, the present invention provides thermal transfer donor sheets containing dyes of the following formula: ##STR1## wherein: R.sup.1 is a (C.sub.1-20)alkyl or hydroxy(C.sub.1-20)alkyl group; R.sup.2 is a hydroxy(C.sub.1-20)alkyl or (C.sub.1-20)alkylene--OC(O)NH--(C.sub.1-20)alkylene--OC(O)--R.sup.4 wherein R.sup.4 is a (C.sub.1-20)alkenyl group or a polymerized alkenyl group; and R.sup.3 is F or CF.sub.3. Useful dyes of this formulation are stable under ambient conditions for at least about 6 months.

REFERENCES:
patent: 5234887 (1993-08-01), Gregory et al.

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