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    • 2. 发明授权
    • Bifunctional benzisoxazolone compounds
    • 双官能苯并恶唑酮化合物
    • US4192679A
    • 1980-03-11
    • US960889
    • 1978-11-15
    • Wayne F. Erickson
    • Wayne F. Erickson
    • C07D261/20C07D413/06G03C7/305G03C8/00G03C8/08G03C1/40G03C1/10G03C5/54G03C7/00
    • C07D261/20G03C7/30511G03C8/00G03C8/08Y10S430/16
    • Photographic elements, film units and processes are described having bifunctional benzisoxazolones of the formula: ##STR1## wherein: R is alkyl or aryl;DEV is a silver halide developing agent;Ball is at least one organic ballasting radical of such molecular size and configuration as to render the compound nondiffusible in the photograhic element during development in an alkaline processing composition; andn is a positive integer of 1 to 4.The compounds are employed in negative-working, color image transfer elements and release the developer upon processing. The remainder of the compound functions to scavenge oxidized developer. The compounds can be located in an emulsion layer or in a dye image-providing material layer, and in a ballasted form can be located in an interlayer.
    • 描述了具有下式的双官能苯并恶唑酮的摄影元件,膜单元和方法:其中:R是烷基或芳基; DEV是卤化银显影剂; 球是至少一种这样的分子大小和构型的有机压载自由基,以使得在碱性处理组合物的显影过程中化合物在光致元件中不扩散; n为1〜4的正整数。该化合物用于负极工作的彩色图像转印元件,并在处理时释放显影剂。 化合物的其余部分用于清除氧化的显影剂。 化合物可以位于乳剂层或染料图像提供材料层中,并且镇定形式可以位于中间层中。