Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1989-10-10
1990-08-14
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...
430226, 430359, 430378, 430543, 430548, 430559, G03C 554, G03C 140
Patent
active
049486985
ABSTRACT:
A heat-processible color photographic material having on a base support at least a light-sensitive silver halide, a reducing agent, a binder and a dye-providing material represented by the following general formula (1) in disclosed. where A is a coupler site capable of dye formation by entering into a coupling reaction with the oxidized product of the reducing agent; L is a divalent linkage grop binding to A at the active point of the coupler site represented by A; B is a ballast group having a sufficient molecular size or shape to render the dye-providing material of the general formula (1) substantially immobile during thermal development; Dye is a dye site, n is 1, 2 or 3, part of the coupler site A optionally serving as part of the dye site Dye.
REFERENCES:
patent: 4420556 (1983-12-01), Booms et al.
patent: 4483914 (1984-11-01), Naito et al.
patent: 4585731 (1986-04-01), Kobayashi et al.
patent: 4724198 (1988-02-01), Yamada et al.
patent: 4837141 (1989-06-01), Kohno et al.
Bierman Jordan B.
Dote Janis L.
Konica Corporation
Michl Paul R.
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