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    • 13. 发明授权
    • Photographic elements containing particular color couplers in
combination with hydroquinone type stabilizers
    • 含有特定色耦合剂与氢醌类稳定剂的照相元件
    • US5434041A
    • 1995-07-18
    • US042370
    • 1993-04-02
    • Rakesh JainThomas H. JozefiakHugh M. Williamson
    • Rakesh JainThomas H. JozefiakHugh M. Williamson
    • G03C7/30G03C7/36G03C7/392G03C7/32
    • G03C7/36G03C7/3013
    • A photographic element having at least one photosensitive silver halide layer and associated therewith both a particular type of color coupler and a particular type of stabilizer. The color coupler is of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.The stabilizer is of the general formula: ##STR2## wherein: E.sup.1, E.sup.2, W.sup.2 and W.sup.3 may independently be a hydrogen atom, a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group, an acylamino group, a mono or dialkylamino group, an aliphatic or aromatic thio group, an aliphatic or aromatic oxycarbonyl group, or W.sup.2 and W.sup.3 in combination with the benzene ring may independently represent the atoms necessary to complete a fused ring system, or E.sup.1 and W.sup.3 together, and E.sup.2 and W.sup.2 together, may independently form a heterocyclic ring with an O.
    • 具有至少一个光敏卤化银层并与其相关联的特定类型的彩色耦合器和特定类型的稳定器的照相元件。 (1)或(2)的成色剂:其中A和B表示相同或不同的吸电子基团,X是H或分开的基团 与氧化显色剂偶联时,R为可被取代的烷基,环烷基,芳基或杂环,-COR1,-CSR1,SOR1,SO2R1,-NHCOR1,-CONHR1,-COOR1,-COSR1,-NHSO2R1,其中R1为 任何一个烷基,环烷基或芳基任选被取代,并且其中A,B,R和X中的两个或更多个任选地形成环的一部分,Link是连接基团,n是0,1或2。 稳定剂具有以下通式:其中:E1,E2,W2和W3可以独立地为氢原子,取代或未取代的脂族基团,取代或未取代的芳基,酰氨基,单 或二烷基氨基,脂族或芳族硫基,脂族或芳族氧基羰基,或W2和W3与苯环的组合可以独立地 代表完成稠环系统或E1和W3一起必需的原子,E2和W2一起可以独立地形成具有O.的杂环。