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 2018777
-i- INFRARED ABSORBING OXYINDOLIZINE 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 an oxyindolizine dye. In a preferred embodiment, the oxyindolizine dye has the following formula: Image or Image wherein: R1 and R2 each independently represents a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms or an aryl, cycloalkyl or hetaryl group having from about 5 to about 10 atoms; R3, R4, R5, R6 and R7 each independently represents hydrogen, halogen, cyano, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, -ii- alkoxycarbonyl, sulfonyl, carbamoyl, acyl, acylamido, alkylamino, arylamino or a substituted or unsubstituted alkyl, aryl or hetaryl group; or any two of said R3, R4, R5, R6 and R7 groups may be combined with each other to form a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; Y represents oxygen, sulfur, selenium, tellurium, nitrogen or phosphorus; A and Z each independently represents hydrogen or the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring, with the proviso that Z may be a ring only when Y is nitrogen or phosphorus; n is 0 to 2, with the proviso that n is 1 or 2 when Y is oxygen, sulfur, selenium or tellurium; and X is a monovalent anion.
Deboer Charles D.
Eastman Kodak Company
Gowling Lafleur Henderson Llp
LandOfFree
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