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    • 10. 发明授权
    • Stable photographic color developing composition and method of use
    • 稳定的照相色彩显影组合物和使用方法
    • US06623915B1
    • 2003-09-23
    • US10216994
    • 2002-08-12
    • Shirleyanne E. HayeJanet M. Huston
    • Shirleyanne E. HayeJanet M. Huston
    • G03C7413
    • G03C7/413G03C5/266
    • Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of a sulfur compound as a preservative for a color developing agent. The preservative can be represented by one of the following Structures I, II, III, and IV: M1S—R—CH(NH2)—COOM2   (I) M1S—R1—COOM2   (II) R2—S—S—R2   (III) R3HN—R4—SM1   (IV) wherein R is a divalent aliphatic linking group having at least 1 carbon atom in the chain, R1 is phenylene or an unsubstituted alkylene having 1 or 2 carbon atoms, R2 is a monovalent aliphatic group having at least 2 carbon atoms and comprising a —CH(NHR3)—COOM2 or —(C1-C3)alkylene-CH(NHR3)—COOM2 group, R3 is hydrogen, an alkyl group having 1 to 3 carbon atoms or phenyl, R4 is an alkylene group, a cyclohexylene group, or a phenylene group, and M1 and M2 are independently hydrogen, an alkali metal or ammonium ion or methyl group. These compositions can be used to process color photographic materials.
    • 浓缩和加工强度的照相彩色显影组合物通过包含作为彩色显影剂的防腐剂的硫化合物而被稳定。 防腐剂可以由以下结构I,II,III和IV之一表示:其中R是在链中具有至少1个碳原子的二价脂族连接基团,R 1是亚苯基或具有1或2个碳的未取代的亚烷基 原子,R2是具有至少2个碳原子并且包含-CH(NHR 3)-COOM 2或 - (C 1 -C 3)亚烷基-CH(NHR 3)-COOM 2基团的一价脂族基团,R 3是氢,具有1个 3个碳原子或苯基,R4是亚烷基,亚环己基或亚苯基,M1和M2独立地是氢,碱金属或铵离子或甲基。 这些组合物可用于处理彩色照相材料。