Silver halide photographic material
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsMasao Sasaki, Toyoki Nishijima, Shun Takada, Takashi Kadowaki, Kaoru Onodera
Life of this patent
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Abstract
A silver halide photographic material having one or more silver halide emulsion layers formed on a support is disclosed wherein at least one of said silver halide emulsion layers contains at least one cyan coupler of formula (I) dispersed therein with the aid of a high-boiling organic solvent having a dielectric constant of not more than 6.0: ##STR1## (wherein R.sub.1 is a straight- or branched-chain alkyl group having 2 or 4 carbon atoms; X is a hydrogen atom or a group capable of leaving upon coupling reaction; and R.sub.2 is a ballast group).
Claims6
A silver halide photographic material having one or more silver halide emulsion layers formed on a support, wherein at least one of said silver halide emulsion layers contains at least one cyan coupler of Formula (I) dispersed therein with the aid of a high-boiling organic solvent having a dielectric constant of not more than 6.0:
- ##STR37## wherein R.sub.1 is a straight-or branched-chain alkyl group having 2 to 4 carbon atoms;
- X is a hydrogen atom or a group capable of leaving upon coupling reaction;
- R.sub.3 is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms;
- and Ar is an aryl group.
Dependencies are inferred from the claim text.