Methine-dye releasing couplers for heat image separation systems

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...

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Details

430226, 430546, G03C 812, G03C 840

Patent

active

054551404

ABSTRACT:
An aqueous-developable photographic color diffusion transfer element is disclosed where this element comprises one and only one dimensionally stable support and one or more layers comprising radiation sensitive silver halide, thermal solvent for facilitating the thermal diffusion of dyes through a hydrophilic binder, a methine-dye releasing coupler, and hydrophilic binder, wherein said dye is heat diffusible in said binder and thermal solvent, and wherein said methine-dye releasing coupler is of the structure (I)

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