Infrared absorbing nickel-dithiolene dye complexes for dye-donor

Details Infrared absorbing nickel-dithiolene dye complexes for dye-donor Infrared absorbing nickel-dithiolene dye complexes for dye-donor

1990-04-20

1991-07-30

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428480, 428913, 428914, 430200, 430201, 430945, B41M 5035, B41M 526

Patent

active

050360400

ABSTRACT:
A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer comprising a polymeric binder, an image dye and an infrared-absorbing material which is different from the image dye in the dye layer, and wherein the infrared-absorbing material is a nickel-dithioene dye complex which is located coextensively with the image dye in the dye layer, the dye complex having the following formula: ##STR1## wherein: each R.sup.1 and R.sup.2 independently represents a substituted or unsubstituted alkyl group having from 1 to about 0 carbon atoms or one of R.sup.1 and R.sup.2, but not both simultaneously, represents a substituted or unsubstituted aryl or hetaryl group having from about 5 to about 10 atoms; or R.sup.1 and R.sup.2 may be combined together with the carbon atoms to which they are attached to form a 5- to 7-membered substituted or unsubstituted carbocyclic ring; each Z independently represents the atoms necesasry to complete a 6-membered substituted or unsubstituted benzene ring; and X.sup.+ is a monovalent cation.

REFERENCES:
patent: 4753923 (1988-06-01), Byers et al.
G. N. Schranzer et al, J. Am. Chem. Soc., 84, 3221 (1962).
M. J. Baker-Hawkes et al, J. Am. Chem. Soc., 88, 4870 (1966).

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