Thermally-transferable fluorescent diphenylpyrazolines
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United States of America Patent
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Sep 12, 1989
Grant Date -
N/A
app pub date -
Sep 30, 1988
filing date -
Sep 30, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A donor element for thermal transfer comprising a support having on one side thereof a fluorescent diphenylpyrazoline 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: R is hydrogen, cyan; carboxyalkyl; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; or a substituted or unsubstituted aryl group of about 6 to about 10 carbon atoms; and J is hydrogen; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; a substituted or unsubstituted aryl group of about 6 to about 10 carbon atoms; or may represent --CH.sub.2 -- or --CH.sub.2 CH.sub.2 -- to complete a 5- or 6-membered non-aromatic carbocyclic ring.
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