Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1986-09-18
1988-09-20
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430218, 430223, 430443, 430445, 430446, 430566, 430955, 430957, 430958, 430959, 430960, G03C 140, G03C 554, G03C 108
Patent
active
047725370
ABSTRACT:
A silver halide photographic material which contains at least one blocked photographic reagent having in the molecule thereof at least one ##STR1## structure and capable of releasing a photogrpahically useful reagent by cleavage of the ##STR2## bond by a nucleophilic attack of a nucleophilic reagent on the structure and a subsequent intramolecular electron transfer reaction or an intramolecular nucleophilic reaction and which has at least one photosensitive silver halide emulsion layer. There is provided a photogrphic material which includes, in combination, a photographic reagent precursor capable of releasing a photographically useful reagent timely on photographic processing and a photosensitive silver halide emulsion layer.
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Itoh Isamu
Ono Mitsunori
Doody Patrick A.
Fuji Photo Film Co. , Ltd.
Michl Paul R.
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