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    • 40. 发明授权
    • Photographic elements containing particular color couplers in
combination with polymeric stabilizers
    • 包含特定色耦合器与聚合物稳定剂的照相元件
    • US5436124A
    • 1995-07-25
    • US42369
    • 1993-04-02
    • Rakesh JainThomas H. JozefiakHugh M. Williamson
    • Rakesh JainThomas H. JozefiakHugh M. Williamson
    • G03C7/30G03C7/36G03C7/392G03C7/396
    • G03C7/36G03C7/3013G03C7/396
    • A photographic element comprising a support, at least one photosensitive silver halide layer and associated therewith a color coupler and a stabilizer therefor which stabilizer is an acrylate or acrylamide homopolymer or copolymer of low water solubility, the color coupler being 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 oxidised 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.
    • 一种照相元件,其特征在于,包含支持体,至少一个感光卤化银层,并与其相配合的着色剂及其稳定剂,其中稳定剂是具有低水溶性的丙烯酸酯或丙烯酰胺均聚物或共聚物,所述着色剂为通式(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为 可被取代的烷基,环烷基,芳基或杂环,-COR 1,-CSR 1,SOR 1,SO 2 R 1,-NHCOR 1,-CONHR 1,-COOR 1,-COSR 1,-NHSO 2 R 1,其中R 1是烷基,环烷基或芳基, 任选地被取代,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。