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 2018243
-i- INFRARED ABSORBING TRINUCLEAR CYANINE 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 trinuclear cyanine dye which is located in the dye layer. In a preferred embodiment, the trinuclear cyanine dye has the following formula: Image wherein: R1 , R2 and R3 each independently represents 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; R4 R5 R6 R7 and R8 each independently represents hydrogen, 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 R4, R5, R6, R7 and R8 groups may be combined with R1, R2 or R3 or with each other to form a 5- to -ii- 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; J is NR1, O or S; Z1 and Z2 each independently represents hydrogen, R1 or the atoms necessary to form a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; Y1 and Y2 each independently represents a dialkyl-substituted carbon atom, a vinylene group, an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, NR1, or a direct bond to the carbon at the R5 or R7 position; m and n are each independently 0 to 3, with the proviso that n+m is at least 3; and X is a monovalent anionic group isolated or covalently attached to any of said R1, R2, R3, R4, R5, R6, R7, R8. Z1 or Z2 groups.
Deboer Charles D.
Evans Steven
Deboer Charles D.
Eastman Kodak Company
Evans Steven
Gowling Lafleur Henderson Llp
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