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    • 10. 发明授权
    • Silver halide photographic material
    • 卤化银照相材料
    • US4766060A
    • 1988-08-23
    • US878078
    • 1986-06-24
    • Hidetaka NinomiyaRyosuke Sato
    • Hidetaka NinomiyaRyosuke Sato
    • G03C7/34G03C7/305G03C7/38G03C7/32
    • G03C7/30523
    • A silver halide photographic material containing a cyan coupler represented by the formula: ##STR1## wherein, R.sub.1 is selected from the group consisting of an acylamino group, an alkylsulfonamido group, an arylsulfonamido group, a carbamoyl group, a sulfamoyl group, an alkylureido group, an arylureido group, an alkyl group, an alkoxy group, an amino group, an alkoxycarbonyl group and a arylcarbonyl group, said groups have at least one carboxy group as a substituent, R.sub.2 is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a nitro group, a cyano group, a formyl group, a carboxyl group, a hydroxyl group, an amino group, an acylamino group, an alkylsulfonamido group, an arylsulfonamido group, an alkylureido group, an arylureido group, a sulfamoyl group, a carbamoyl group, an alkoxycarbonyl group and an aryloxycarbonyl group, R.sub.3 represents an alkyl group substituted with a phenoxy group; R.sub.4 represents a hydrogen atom or an alkyl group, n represents an integer of 1 to 4, provided that when n is 2 or more the groups represented by the plurality of R.sub.2 may be either same or different from each other, and that the total number of carbon atoms contained in the groups represented by R.sub.3 and R.sub.4 is 10 or more.
    • 含有由下式表示的青色成色剂的卤化银照相材料:其中R1选自酰氨基,烷基磺酰胺基,芳基磺酰胺基,氨基甲酰基,氨磺酰基,烷基脲基 ,芳基脲基,烷基,烷氧基,氨基,烷氧基羰基和芳基羰基,所述基团具有至少一个羧基作为取代基,R2选自氢原子, 卤素原子,烷基,烷氧基,硝基,氰基,甲酰基,羧基,羟基,氨基,酰氨基,烷基磺酰氨基,芳基磺酰氨基,烷基脲基 ,芳基脲基,氨磺酰基,氨基甲酰基,烷氧基羰基和芳氧基羰基,R3表示被苯氧基取代的烷基; R4表示氢原子或烷基,n表示1〜4的整数,条件是当n为2以上时,由多个R 2表示的基团可以相同也可以不同, 由R3和R4表示的基团中所含的碳原子数为10以上。