Method of making and a photographic element containing bleach ac

Radiation imagery chemistry: process – composition – or product th – Nonradiation sensitive image processing compositions or... – Bleach or intensification

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434 30, 434430, 434564, 204 59QM, 204 92, 20415749, 20415776, 549 64, 549225, 556113, G03C 500, G03C 544, G03C 542, G03C 1005

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053806298

ABSTRACT:
This invention provides a process for preparing a bleach accelerator silver salt dispersion by precipitating a salt of a bleach accelerating compound and a silver salt wherein the vAg is maintained at a predetermined level during the precipitation. This invention further provides a photographic element containing a dispersion of grains of a bleach accelerator silver salt wherein the grains are isomorphic or derived from needle or platelet isomorphic crystals.

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patent: 4923784 (1990-05-01), Harder et al.
patent: 5166015 (1992-11-01), Ichikawa et al.

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