B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
42/6
B41M 5/28 (2006.01) B41M 5/40 (2006.01) B41M 5/46 (2006.01)
Patent
CA 2018042
-i- INFRARED ABSORBING SQUARYLIUM DYES FOR DYE-DONOR ELEMENT USED IN LASER-INDUCED THERMAL DYE TRANSFER Abstract A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer and an infrared-absorbing material which is different from the dye in the dye layer, and wherein the infrared-absorbing material is a squarylium dye which is located in the dye layer. In a preferred embodiment, the squarylium dye has the following formula: Image wherein: R1, R2, R3 and R4 each independently represents hydrogen, hydroxy, halogen, cyano, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, alkoxycarbonyl, sulfonyl, carbamoyl, acyl, acylamido, alkylamino, arylamino or a substituted or unsubstituted alkyl, aryl or hetaryl group; or any of said R1, R2, R3 or R4 groups may be combined with R5, R6, R7 or R8 or with each other to form a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; -ii- R5, R6, R7 and R8 each independently represents hydrogen, a substituted or unsubstituted alkyl or cycloalkyl group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms; or R5 and R6 or R7 and R8 may be joined together to form a 5- to 7-membered substituted or unsubstituted nitrogen-containing heterocyclic ring; and n and m are each independently 1 to 4.
Deboer Charles D.
Evans Steven
Deboer Charles D.
Eastman Kodak Company
Evans Steven
Gowling Lafleur Henderson Llp
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