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    • 1. 发明公开
    • Photographic material and process comprising dir coupler
    • 材料sowie Verfahren mit Dirkuppler。
    • EP0522371A1
    • 1993-01-13
    • EP92110833.8
    • 1992-06-26
    • EASTMAN KODAK COMPANY
    • Begley, William James, c/o EASTMAN KODAK COMPANYLing, Hans Gway, c/o EASTMAN KODAK COMPANY
    • G03C7/305
    • G03C7/30517G03C7/30552G03C7/30576Y10S430/158
    • A photographic DIR (development inhibitor-releasing) acetanilide coupler containing a carboxy group on the anilide moiety or a DIR naphtholic coupler containing on the 2-position a -CONH₂ or -CONHCH₃ group, capable upon oxidative coupling of forming a dye capable of being washed out of a photographic element upon processing, contains, in the coupling position, a coupling-off group comprising, in sequence, at least one ballasted linking group and at least one releasable development-inhibitor group (INH) which is a mercaptotetrazole group which enables a Log P in a pH 10 buffer of lower than -0.8. Such a DIR coupler is especially useful in a color photographic silver halide material and process which enables the dye formed from the DIR coupler to be washed out of the photographic material upon processing and enhanced color saturation through interimage effects.
    • 在酰苯胺部分含有羧基的摄影DIR(显影抑制剂释放)乙酰苯胺偶联剂或包含在2-位上的-CONH 2或-CONHCH 3基团的DIR萘酚成色剂,能够在氧化偶联时形成能够洗涤的染料 在加工时,在照相元件中,在偶联位置含有偶联离子基团,其顺序地包含至少一个压载连接基团和至少一个可释放的显影抑制剂基团(INH),其是巯基四唑基团,其使得能够 log P在pH10缓冲液中低于-0.8。 这样的DIR耦合器在彩色照相卤化银材料和方法中特别有用,其使得能够在处理时从DIR耦合器形成的染料从照相材料中洗出,并通过图像效果增强色彩饱和度。
    • 4. 发明公开
    • Method of preparation of photographic coupler
    • 维尔法赫尔·赫尔斯特隆摄影师库普勒。
    • EP0520498A1
    • 1992-12-30
    • EP92110838.7
    • 1992-06-26
    • EASTMAN KODAK COMPANY
    • Begley, William James, c/o EASTMAN KODAK COMPANYChen, Teh-Hsuan, c/o EASTMAN KODAK COMPANY
    • G03C7/305
    • G03C7/30576
    • A method of preparing a photographic coupler that comprises a parent coupler moiety (COUP) containing a phenoxy coupling-off group having an animomethyl group in the 2-position of the phenoxy coupling-off group comprises (A) reacting (a) a coupler moiety containing a phenoxy coupling-off group having a hydroxyalkyl or hydroxyaryl group in the 2-position wherein the hydroxy is on the alpha carbon atom of the alkyl or aryl group, with (b) a halogenating agent under ambient conditions; then, (B) reacting the product from step (A) with an amine compound. The product can be reacted with phosgene or a bis-thio compound to form an intermediate that is also useful for forming photographic couplers. The resulting products are useful in photographic silver halide materials and processes.
    • 制备包含苯氧基离去基团的2位上含有animomethyl基的苯氧基离去基团的母体成色剂部分(COUP)的照相成色剂的方法包括(A)使(a)成色剂部分 在2-位上含有羟基烷基或羟基芳基的苯氧基离去基团,其中羟基在烷基或芳基的α碳原子上,与(b)卤化剂在环境条件下反应; 然后,(B)使来自步骤(A)的产物与胺化合物反应。 该产物可以与光气或双 - 硫代化合物反应形成也可用于形成照相成色剂的中间体。 所得产物可用于照相卤化银材料和方法。