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    • 28. 发明授权
    • Photographic elements containing particular color couplers in
combination with particular stabilizers
    • 包含特定色耦合器的特定稳定器的照相元件
    • US5437962A
    • 1995-08-01
    • US42194
    • 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 (II), (III) or (IV): ##STR2## wherein the substituents of (II), (III) and (IV) are as defined in the specification.
    • 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。 彩色成色剂具有通式(1)或(2):其中A和B表示相同或不同的吸电子基团,X为H或与氧化显色剂偶联时分裂的基团R 是可以被取代的烷基,环烷基,芳基或杂环,-COR1,-CSR1,SOR1,SO2R1,-NHCOR1,-CONHR1,-COOR1,-COSR1,-NHSO2R1,其中R1是烷基,环烷基或芳基, 其中任选被取代,并且其中两个或多个A,B,R和X任选地形成环的一部分,Link是连接基团,n是0,1或2.稳定剂具有通式(II (II),(III)和(IV)的取代基如说明书中所定义。