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    • 2. 发明授权
    • Filter dyes for photographic elements
    • 用于照相元件的滤色染料
    • US5399690A
    • 1995-03-21
    • US15775
    • 1993-02-10
    • Donald R. DiehlGlenn M. BrownMargaret J. Helber
    • Donald R. DiehlGlenn M. BrownMargaret J. Helber
    • C09B23/01C09B23/14G03C1/83C09B23/02C09B23/04C09B23/06
    • G03C1/832C09B23/0008C09B23/0066C09B23/0091C09B23/14
    • Solid particle dispersions of dyes according to the formula: ##STR1## wherein D is selected from the group consisting of ##STR2## and ketomethylene nuclei are disclosed as filter dyes for photographic elements.In this formula, E.sup.1 and E.sup.2 are each independently electron withdrawing groups. R.sup.1 and R.sup.6 are each independently R or NHR, where R is aryl. R.sup.2 and R.sup.3 are each independently alkyl or aryl, or represent the carbon atoms necessary to form a fused ring with the phenyl ring to which the N atom is attached. R.sup.4 and R.sup.7 are each independently hydrogen, alkyl or aryl. R.sup.5 is alkyl. Z represents the atoms necessary to complete a 5 or 6 memebered heterocyclic nucleus. M.sup.+ is a cation. L.sup.1 through L.sup.7 are each independently methine groups. m is 0, 1, 2, or 3. n is 0 or 1. p is 0, 1, 2, 3, or 4. q is 0, 1, 2, or 3. At least one of R.sup.1 or D includes an aryl ring substituted with a carboxy or sulfonamido substituent.
    • 公开了根据下式的染料的固体颗粒分散体:其中D选自由下列组成的组:IMA图像和酮亚甲基核,作为照相元件的滤光染料。 在该式中,E1和E2各自独立地是吸电子基团。 R 1和R 6各自独立地为R或NHR,其中R为芳基。 R2和R3各自独立地为烷基或芳基,或代表与N原子连接的苯环形成稠环所必需的碳原子。 R4和R7各自独立地为氢,烷基或芳基。 R5是烷基。 Z表示完成5或6个杂芳核所必需的原子。 M +是阳离子。 L1至L7各自独立为次甲基。 m为0,1,2或3.n为0或1.p为0,1,2,3或4.q为0,1,2或3.R 1或D中的至少一个包括 被羧基或磺酰氨基取代基取代的芳环。