Photographic materials containing electron accepting agents

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

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Details

430264, 430600, 430603, 430606, 430611, 430613, 430614, 430640, G03C 134

Patent

active

051983338

ABSTRACT:
A new class of electron-accepting compounds for photographic emulsions is disclosed represented by following general formula (I): ##STR1## wherein: each of Z and Q which may be the same or different represents the atoms necessary to complete an unsubstituted or substituted nitrogen-containing heterocyclic ring;

REFERENCES:
patent: 4495274 (1985-01-01), Yoshida
patent: 4820625 (1989-04-01), Saeki et al.

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