Photographic material and process comprising wash-out naphtholic coupler
    3.
    发明授权
    Photographic material and process comprising wash-out naphtholic coupler 失效
    摄影材料和方法,包括洗出萘酚偶合剂

    公开(公告)号:US5151343A

    公开(公告)日:1992-09-29

    申请号:US748499

    申请日:1991-08-22

    IPC分类号: G03C7/305

    CPC分类号: G03C7/30523

    摘要: A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2- position and a ballasted coupling-off group in the 4- position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.

    摘要翻译: 包含在2-位上含有-CON​​H 2基的无镇流的萘环成色剂部分的照相萘酚成色剂部分和位置在4-位的压载偶合剂组合能够在处理过程中从照相材料进行氧化偶联时形成的染料的良好洗脱 这样的照相材料。 这种萘鎓偶联剂可用于照相卤化银材料和方法。

    Indazole containing coupler
    5.
    发明授权
    Indazole containing coupler 失效
    含吲唑的成色剂

    公开(公告)号:US5962656A

    公开(公告)日:1999-10-05

    申请号:US872118

    申请日:1997-06-10

    摘要: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formulaCOUP--T.sup.1 --T.sup.2 --(T.sup.3).sub.b --PUGwhereinCOUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 and T3 are timing or linking groups;T.sup.2 is an indazole timing or linking group which, after release from T.sup.1, functions by electron transfer down a conjugated chain to release T.sup.3 or PUG, and which is represented by the formula: ##STR1## wherein ** denotes the point of attachment to T.sup.1 and *** denotes the point of attachment to T.sup.3 or PUG;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring;V is independently a substituent group as further defined;q is 0, 1, 2, 3 or 4;b is 0 or 1; andPUG is a photographically useful group.

    摘要翻译: 一种照相元件,包括其上设置有至少一个卤化银乳剂层的载体,该层含有由式COUP-T1-T2-(T3)b-PUG表示的照相偶联物,其中COUP是具有偶合位点的成色剂部分,其中T1 被附上; T1和T3是定时或链接组; T2是吲唑定时或连接基团,其在从T1释放后通过电子转移到共轭链下达释放T3或PUG而起作用,其由下式表示:其中**表示与T1和**的连接点 *表示与T3或PUG的连接点; R 1和R 2独立地选自氢或脂族,碳环或杂环基,或可以键合在一起形成5,6或7元环; V独立地是进一步定义的取代基; q是0,1,2,3或4; b为0或1; PUG是一个摄影有用的小组。

    Photographic element containing a coupler capable of releasing a
photographically useful group through a triazole group

    公开(公告)号:US5817809A

    公开(公告)日:1998-10-06

    申请号:US923842

    申请日:1997-09-04

    摘要: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element further comprising a photographic coupler represented by the formula COUP--(T.sup.1).sub.b --T.sup.2 --(T.sup.3).sub.c --PUG wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached; T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated or unconjugated chain, or by a nucleophilic displacement reaction, to release T.sup.2 ; T.sup.2 is a triazole timing or linking group which, after release from T.sup.1, functions by a nucleophilic displacement reaction to release T.sup.3 or PUG and is represented by the formula: ##STR1## wherein ** denotes the point of attachment to T.sup.1 and *** denotes the point of attachment to T.sup.3 or PUG; R.sup.1 is a hydrogen or halogen atom, or an aliphatic, carbocyclic, carbamoyl, sulfamoyl, carbonamido, sulfonamido, alkoxycarbonyl, alkyl or arylketo, alkyl or arylsulfo, sulfo, hydroxy, acyl, nitro, cyano, amino, alkoxy, alkoxyalkyl, aryloxy, aryloxyalkyl, thioalkoxy, thioalkoxyalkyl, thioaryloxy, thioaryloxyalkyl or heterocyclic group; X.sup.2 is a linking group which spatially relates a nitrogen atom of the triazole ring and E.sup.2 so that upon displacement of T.sup.2 from T.sup.1, T.sup.2 undergoes a nucleophilic displacement reaction with the formation of a three to eight membered ring and the cleavage of the bond between E.sup.2 and PUG or T.sup.3 ; E.sup.2 is an electrophilic group which is attached to T.sup.3 or PUG and which is displaced therefrom by said nuclophilic displacement reaction after T.sup.2 is displaced from T.sup.1 ; T.sup.3 is a timing or linking group attached to E.sup.2 which is released therefrom after T.sup.2 releases from T.sup.1, and which functions by electron transfer down a conjugated or unconjugated chain, or by a nucleophilic displacement reaction, to release PUG; b and c are independently selected from 0 or 1; and PUG is a photographically useful group.

    Photographic element containing a coupler capable of releasing a
photographically useful group
    9.
    发明授权
    Photographic element containing a coupler capable of releasing a photographically useful group 失效
    含有能够释放摄影有用组的耦合器的照相元件

    公开(公告)号:US5670301A

    公开(公告)日:1997-09-23

    申请号:US590644

    申请日:1996-01-24

    摘要: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formula ##STR1## wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached; T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated chain, or by nucleophilic displacement reaction, to release from HETERO; HETERO is a heterocyclic group containing at least two heteroatoms independently selected from oxygen, nitrogen, or sulfur, wherein one of the heteroatoms is directly attached to T.sup.1 ; R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring; and PUG is a photographically useful group.

    摘要翻译: 一种照相元件,包括一个载体,其上设置有至少一个卤化银乳剂层,该层包含由式“IMAGE”表示的照相成色剂,其中COUP是具有与T1连接的偶合位点的成色剂部分; T1是在加工期间从COUP释放的定时或连接基团,并且通过电子转移共轭链或通过亲核取代反应从HETERO释放的功能; HETERO是含有至少两个独立地选自氧,氮或硫的杂原子的杂环基,其中一个杂原子直接连接到T1上; R 1和R 2独立地选自氢或脂族,碳环或杂环基,或可以键合在一起形成5,6或7元环; PUG是一个摄影有用的小组。