发明名称 Recording material for color photography
摘要 Recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one yellow coupler of the formula <IMAGE> in which R1, R2, R3 and R4 are alkyl, cycloalkyl or aryl, X1, X2, X3 and X4 are radicals detachable during the coupling reaction and Y1 and Y2 are halogen, alkyl, alkoxy, alkylmercapto, -CN, -COOH, carbalkoxy, -NH2, -NHR5, -NR5R6 or -NHCOR5, in which R5 and R6 are alkyl or phenyl, Z is a divalent bridge member and r is 1 or 2. Photographic colored images with excellent spectral absorption characteristics and good resistance to light, heat and moisture are obtained by exposing the recording material image-wise and developing.
申请公布号 US4568752(A) 申请公布日期 1986.02.04
申请号 US19840680403 申请日期 1984.12.10
申请人 CIBA-GEIGY AG 发明人 FRYBERG, MARIO
分类号 C07D233/72;C07D233/88;C07D263/44;C07D277/52;C07D285/12;C07D285/135;C09B55/00;G03C7/36;(IPC1-7):G03C7/00;G03C1/40 主分类号 C07D233/72
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