Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1983-09-07
1985-04-09
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430558, 430567, 430568, G03C 102
Patent
active
045102341
ABSTRACT:
A silver halide photographic emulsion, which comprises (i) a mono-dispersed silver halide emulsion comprising 3 to 50 mole % of silver chloride, 1 mole % or less of silver iodide and 50 to 97 mole % of silver bromide having a grain size distribution of 0.15 or less in terms of the coefficient of variation S/r (where S is standard deviation and r is mean grain diameter), and (ii) a coupler represented by the following formula: ##STR1## wherein X represents an organic group which is bonded through an oxygen atom, a nitrogen atom or a sulfur atom to the coupler and is eliminable during the coupling reaction with an oxidized product of a color developing agent; Y represents a halogen atom, an alkoxy group, an aryloxy group, a diacylamino group or an alkyl group; R represents a trifluoromethyl group, an acylamino group, a sulfonamide group, a ureido group, an alkyl group, an alkoxy group, an aryloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group or an imide group, which is bonded to the anilide group at the 4- or 5-position.
REFERENCES:
patent: 4144071 (1979-03-01), Shiba et al.
patent: 4198240 (1980-04-01), Mikawa
patent: 4269927 (1981-05-01), Atwell
patent: 4434226 (1984-02-01), Wilgus et al.
Kajiwara Makoto
Matsuzaka Syoji
Miyoshi Masanobu
Yamashita Kiyoshi
Brown J. Travis
Konishiroku Photo Industry Co,., Ltd.
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