Photographic elements containing removable couplers

Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...

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Details

430222, 430376, 430543, 430223, 430558, G03C 730, G03C 732

Patent

active

051185946

ABSTRACT:
This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized silver halide color developing agent.

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patent: 3865593 (1975-02-01), Yeshida et all.
patent: 4076529 (1978-02-01), Fleckenstein et al.
patent: 4139379 (1979-02-01), Chasman et al.

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