Mesoionic silver halide stabilizer precursor and use in a heat d

Radiation imagery chemistry: process – composition – or product th – Thermographic process – Heat applied after imaging

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430352, 430419, 430428, 430456, 430443, 430448, 430566, 430611, 430613, 430955, 430960, G03C 530

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active

043518966

ABSTRACT:
Mesoionic 1,2,4-triazolium-3-thiolate silver halide stabilizer precursors are novel compounds useful in a heat developable and heat stabilizable photographic silver halide materials and processes. After imagewise exposure of the photographic material, a developed and stabilized silver image is produced by heating the element. Mesoionic stabilizer precursors are also useful in photographic silver halide processing compositions.

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