Positive-acting photothermographic materials comprising a photo-

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

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430495, 430617, 430618, G03C 516, G03C 100, G03C 300

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active

053874986

ABSTRACT:
Positive-acting photothermographic elements suitable for use in graphic arts and medical imaging comprising a photosensitive medium comprising a reducible silver source, a photo-acid generator, a binder and a reducing system for silver ion comprising a reducing agent for silver ion in which exposure of the element to actinic radiation causes the production of acidic species in the exposed regions which inhibit reduction of the silver source by the reducing system.

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patent: 5262295 (1993-11-01), Tanaka et al.
patent: 5312721 (1994-05-01), Gesing
Research Disclosure, No. 16408, Dec. 1977, pp. 15-16, by Kohrt.
Research Disclosure, No. 19419, Jun. 1980, pp. 264-268.
Research Disclosure No. 125, Sep. 1974, HAVANT GB pp. 40-41.

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