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    • 3. 发明授权
    • Silver halide photographic emulsion
    • 卤化银照相乳剂
    • US4401754A
    • 1983-08-30
    • US316566
    • 1981-10-30
    • Akio SuzukiHiroaki ShiozawaTakeo KoitabashiHideki Takiguchi
    • Akio SuzukiHiroaki ShiozawaTakeo KoitabashiHideki Takiguchi
    • G03C1/005G03C1/10G03C1/34G03C1/28
    • G03C1/10G03C1/34Y10S430/141
    • A silver halide photographic emulsion characterized in that it comprises silver halide grains which are reduction-sensitized during the process of growing said grains and containing a compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acyl group and a cycloalkyl group and R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an alkoxy group, an acyl group, a carboxyl group, an aldehyde group, an amino group, a sulfo group, an alkylthio group, an acylamino group, an aryloxy group, an arylthio group, an alkylamino group, an alkoxycabonyl group and a sulfonamide group. The emulsion exhibits both high sensitivity and improved stability as compared with prior art compositions.
    • 一种卤化银照相乳剂,其特征在于其包含在生长所述颗粒的过程中还原致敏的卤化银颗粒,并含有下式的化合物其中R 1和R 2选自 的氢原子,烷基,烯基,芳基,酰基和环烷基,R 3,R 4,R 5和R 6选自氢原子,卤素原子,羟基 烷基,烯基,环烷基,芳基,烷氧基,酰基,羧基,醛基,氨基,磺基,烷硫基,酰氨基, 芳氧基,芳硫基,烷基氨基,烷氧基羰基和磺酰胺基。 与现有技术的组合物相比,乳液显示出高灵敏度和改善的稳定性。