Radiation-cleavable nondiffusible compounds and photographic elements and processes employing them
AssigneeEastman Kodak Company
InventorJohn D. Mee
Life of this patent
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Abstract
Radiation-cleavable nondiffusible compounds for providing a transfer dye image are comprised of a spectral sensitizing dye moiety and a diffusible image dye moiety joined to a linkage in the spectral sensitizing dye moiety which is cleaved upon absorption of radiation by the spectal sensitizing dye moiety, thereby releasing the diffusible dye. Such compounds are useful in radiation-sensitive elements and processes.
Claims12
A radiation-sensitive element comprising a support bearing a layer of a nondiffusible radiation-cleavable compound consisting of a spectral sensitizing dye moiety containing a pyridine or quinoline nucleus and a diffusible preformed or shifted image dye moiety, the diffusible image dye moiety being joined to the nitrogen atom of the pyridine or quinoline nucleus in the spectral sensitizing dye moiety through an alkoxy linkage which is cleaved upon absorption of radiation by the spectral sensitizing dye moiety, thereby releasing a diffusible dye.
Dependencies are inferred from the claim text.