Thermally-transferable fluorescent 7-aminocoumarins

Details Thermally-transferable fluorescent 7-aminocoumarins Thermally-transferable fluorescent 7-aminocoumarins

1988-08-31

1989-10-24

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428480, 428690, 428913, 428914, B41M 5035, B41M 526

Patent

active

048762377

ABSTRACT:
A donor element for thermal transfer comprising a support having on one side thereof a fluorescent 7-aminocoumarin compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: each X and Y independently represents hydrogen; a substituted or unsubstituted alkyl or acyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; or the atoms necessary to complete, along with the nitrogen to which it is attached, a 5- or 6-membered heterocyclic ring.

REFERENCES:
patent: 4627997 (1986-12-01), Ide

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