Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1983-12-21
1985-07-30
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430553, G03C 726
Patent
active
045322023
ABSTRACT:
There is disclosed a coupler for photography represented by the formula: ##STR1## wherein R.sub.1 represents a branched alkyl group having 3 to 5 carbon atoms; R.sub.2 represents an aryl group; X represents a divalent linking group; Ar represents an aryl group; and Z is a hydrogen atom or a group eliminable through the coupling reaction with the oxidized product of an aromatic primary amine type color developing agent,
and a light-sensitive silver halide photographic material comprising the same.
The coupler mentioned above is not only excellent in solubility in organic solvents, but also can be easily purified, thus being capable of exhibiting excellent characteristics with respect to spectral absorption characteristics, sensitivity, color density, color staining as well as with respect to image storability such as light resistance, heat resistance and humidity resistance.
REFERENCES:
patent: 3880661 (1975-04-01), Lau et al.
patent: 4124396 (1978-11-01), Osborn
patent: 4334011 (1982-06-01), Aoki et al.
patent: 4455367 (1984-06-01), Seoka et al.
patent: 4463086 (1984-07-01), Sasaki et al.
Ishii Fumio
Kaneko Yutaka
Kato Katsunori
Kimura Kazuhiko
Sasaki Takashi
Brown J. Travis
Konishiroku Photo Industry Co,., Ltd.
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