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    • 10. 发明授权
    • Photographic element containing high dye-yield couplers having improved
reactivity
    • 含有高染料收率成色剂的摄影元件具有改善的反应性
    • US5447819A
    • 1995-09-05
    • US250416
    • 1994-05-27
    • Jared B. MooberryJames J. SeifertDavid HokeZheng Z. WuDavid T. SouthbyFrank D. Coms
    • Jared B. MooberryJames J. SeifertDavid HokeZheng Z. WuDavid T. SouthbyFrank D. Coms
    • G03C7/00G03C7/30G03C7/305G03C7/36G03C7/333
    • G03C7/30576G03C7/30547Y10S430/156
    • The invention provides a photographic element comprising a support bearing a photographic silver halide emulsion layer having associated therewith a high dye-yield coupler having the formula:COUP--(T).sub.m --L--DYEwhere COUP is the parent group of the coupler capable of reacting at the coupling position with oxidized color developer to form a first dye, T is one or more timing groups with m=1 or 2, L is a linking group selected from the group consisting of --OC(O)--, --OC(S)--, --SC(O)--, --SC(S)--, or --OC(.dbd.N SO.sub.2 R)--, where R is substituted or unsubstituted alkyl or aryl, and DYE is a second dye or precursor thereof, wherein there is present at least one T group that contains a substituent having the formula:--(LINK).sub.p --A--B--(C--D).sub.nwherein:LINK is an alkylene group capable of linking the above group to the group T, where p=0 or 1;A is a member selected from the group consisting of --NHCO--, --N(R')C(O)N(R--)--, --CONH--, --NR'SO.sub.2 --, --SO.sub.2 NR'--, and --OPO.sub.2 --, where R' is hydrogen or substituted or unsubstituted alkyl;B is a substituted or unsubstituted aromatic carbocyclic or heterocyclic group;C is a solubilizing group selected from --NHSO.sub.2 -- and --SO.sub.2 NH--;D is a substituted or unsubstituted alkyl, aryl, or heterocyclic ring; andn is from 1 to 3.The invention also provides a photographic coupler, a photographic silver halide emulsion, and a process for forming an image in a photographic element in accordance with the invention.
    • 本发明提供了一种照相元件,其包括带有照相卤化银乳剂层的载体,其具有下式的高染料收率成色剂:COUP-(T)mL-DYE,其中COUP是能够在 与氧化的显色剂的偶联位置形成第一染料,T是m = 1或2的一个或多个时基,L是选自-OC(O) - , - OC(S) - , - SC(O) - , - SC(S) - 或-OC(= N SO 2 R) - ,其中R是取代或未取代的烷基或芳基,DYE是第二种染料或其前体, 含有具有下式的取代基的至少一个T基团: - (LINK)pAB-(CD)n其中:LINK是能够将上述基团连接到基团T的亚烷基,其中p = 0或1; A是选自-NHCO-,-N(R')C(O)N(R) - , - CONH - , - NR'SO 2 - , - SO 2 NR' - 和-OPO 2 - 其中R'是氢或取代或未取代的烷基; B是取代或未取代的芳族碳环或杂环基; C是选自-NHSO 2 - 和-SO 2 NH-的增溶基团; D是取代或未取代的烷基,芳基或杂环; 并且n为1至3.本发明还提供照相成色剂,照相卤化银乳剂,以及根据本发明在照相元件中形成图像的方法。