Incorporation of hydrophobic photographic additives into hydrophilic
colloid compositions
    2.
    发明授权
    Incorporation of hydrophobic photographic additives into hydrophilic colloid compositions 失效
    将疏水性照相添加剂并入亲水胶体组合物中

    公开(公告)号:US5013639A

    公开(公告)日:1991-05-07

    申请号:US508643

    申请日:1990-04-12

    IPC分类号: G03C7/388

    CPC分类号: G03C7/3885

    摘要: Aliphatic diesters of alkylenedicarboxylic acid compounds are water-immiscible high-boiling organic solvents useful for dispersing hydrophobic photographic additives in hydrophilic colloid compositioins which are incorporated into light-sensitive silver halide photographic materials.In particular, said aliphatic diesters of alkylenedicarboxylic acid compounds correspond to the general formula ##STR1## wherein R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10, equal or different, each represents a hydrogen atom or a lower alkyl group, with the proviso that at least one of R.sub.3, R.sub.5, R.sub.7 and R.sub.9 is an alkyl group or at least one pair of R.sub.4 and R.sub.6 or R.sub.8 and R.sub.10 are both alkyl groups and the total number of carbon atoms in R.sub.3, R.sub.4, R.sub.5 and R.sub.6 and the total number of carbon atoms in R.sub.7, R.sub.8, R.sub.9 and R.sub.10 is, each, less than 12, and m is 0 to 10.

    摘要翻译: 亚烷基二羧酸化合物的脂族二酯是用于将疏水性照相添加剂分散在亲水胶体组合物中的水不混溶高沸点有机溶剂,其被并入感光卤化银照相材料中。 特别地,所述亚烷基二羧酸化合物的脂肪族二酯对应于通式为:其中R 3,R 4,R 5,R 6,R 7,R 8,R 9和R 10相同或不同,分别表示氢原子或低级烷基, 条件是R 3,R 5,R 7和R 9中的至少一个是烷基或至少一对R 4和R 6或R 8和R 10都是烷基,并且R 3,R 4,R 5和R 5中的总碳原子数 R6和R7,R8,R9和R10中的碳原子总数分别为小于12,m为0至10。

    Process for the formation of stable color photographic images
    4.
    发明授权
    Process for the formation of stable color photographic images 失效
    形成稳定彩色摄影图像的过程

    公开(公告)号:US4822724A

    公开(公告)日:1989-04-18

    申请号:US131674

    申请日:1987-12-11

    摘要: In a reversal process for the formation of color photographic images which consists of a black and white development (first development) to obtain a first negative image, followed by exposure and/or uniform fogging of the residual silver halide and a further processing (including a second color development), to obtain a second visible (in transparency) color positive image, of a silver halide color multilayer material which comprises, coated on a support base, one or more red-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic cyan couplers, one or more green-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic magenta couplers and one or more blue-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic yellow couplers, the improvement which consists of the reversal development of said magenta-forming layer being performed in the absence of a significant presence of oil.