Photodevelopable silver halide photosensitive material

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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Details

430592, 430611, 430616, 430564, 430600, G03C 128, G03C 134

Patent

active

042528950

ABSTRACT:
A photodevelopable silver halide photosensitive material wherein a visible image is formed by a latent image-forming step in which high illumination exposure is effected for a short time and a subsequent light development step in which low illumination exposure is effected, which comprises at least one compound of the formula: ##STR1## wherein R.sub.1 is hydrogen, lower alkyl or a substituted or unsubstituted aryl group and salts thereof.

REFERENCES:
patent: 3241971 (1966-03-01), Kitze
patent: 3579348 (1971-05-01), Fix

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