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    • 31. 发明授权
    • Methine-dye releasing couplers for heat image separation systems
    • 用于热图像分离系统的甲基染料释放成色剂
    • US5455140A
    • 1995-10-03
    • US250145
    • 1994-05-27
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • G03C8/10G03C8/40G03C8/12
    • G03C8/10G03C8/4013
    • An aqueous-developable photographic color diffusion transfer element is disclosed where this element comprises one and only one dimensionally stable support and one or more layers comprising radiation sensitive silver halide, thermal solvent for facilitating the thermal diffusion of dyes through a hydrophilic binder, a methine-dye releasing coupler, and hydrophilic binder, wherein said dye is heat diffusible in said binder and thermal solvent, and wherein said methine-dye releasing coupler is of the structure (I)Cp--L--M (I)whereCp is a coupler radical substituted in the coupling position with a divalent linking group, L;M is a methine-dye radical exhibiting selective absorption in the visible spectrum; and where the --L--M group couples off upon reaction of said coupler radical with the oxidation product of a primary amine developing agent, and where said methine-dye radical M is released from said --L--M group subsequent to the coupling off of said --L--M group.Also disclosed in this invention is a diffusion transfer process for forming a color photographic image comprising the steps of:exposing said element to actinic radiation; processing said element by immersing said element in an external aqueous bath containing color developer of the primary amine type;washing said element;drying said element to remove the imbibed water; andheating said element to effect dye diffusion transfer to an image receiving layer.
    • 公开了一种含水显影照相色彩扩散转移元件,其中该元件包括一个且仅一维稳定的载体,以及包含辐射敏感卤化银的一层或多层,用于促进染料通过亲水性粘合剂的热扩散的热溶剂, 染料释放成色剂和亲水性粘合剂,其中所述染料在所述粘合剂和热溶剂中是热扩散的,并且其中所述次甲基染料释放成色剂具有结构式(I)Cp-LM(I),其中Cp是取代基 与二价连接基团的偶联位置L; M是在可见光谱中表现出选择性吸收的次甲基染料基团; 并且其中-LM基团在所述成色剂基团与伯胺显影剂的氧化产物反应时脱离,并且其中所述次甲基染料基团M在所述-LM基团的偶联之后从所述-LM基团释放出来 。 本发明还公开了用于形成彩色照相图像的扩散转移方法,包括以下步骤:将所述元件暴露于光化辐射; 通过将所述元件浸入含有伯胺型彩色显影剂的外部水浴中来处理所述元件; 洗涤元素; 干燥所述元件以除去吸收的水; 并加热所述元件以进行染料扩散转移到图像接收层。
    • 32. 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。
    • 33. 发明授权
    • Dye releasing couplers for heat image separation systems
    • 用于热图像分离系统的脱色成色剂
    • US5356750A
    • 1994-10-18
    • US993580
    • 1992-12-21
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • G03C8/10G03C8/40G03C5/54
    • G03C8/4033G03C8/10G03C8/4066
    • An aqueous-developable photographic color diffusion transfer element comprising a single dimensionally stable support and one or more layers comprising radiation sensitive silver halide, thermal solvent for facilitating the thermal diffusion of dyes through a hydrophilic binder, a dye-releasing coupler, and hydrophilic binder, wherein said dye is heat diffusible in said binder and thermal solvent, and wherein said dye-releasing coupler is of the structureCp--L-DyewhereCp is a cyan dye forming radical, magenta dye forming radical, yellow dye forming radical, black dye forming radical, or colorless product forming radical, said Cp being substituted in the coupling position with a divalent linking group, L;Dye is a dye radical exhibiting selective absorption in the visible spectrum; and where said --L-Dye group couples off upon reaction of said coupler radical with the oxidation product of a primary amine developing agent is disclosed.
    • 含水显影照相色彩扩散转移元件包括单尺寸稳定的载体和一层或多层包含辐射敏感的卤化银,用于促进染料通过亲水性粘合剂的热扩散的热溶剂,染料释放成色剂和亲水性粘合剂, 其中所述染料在所述粘合剂和热溶剂中是热扩散的,并且其中所述染料释放成色剂具有结构Cp-L-Dye,其中Cp是形成自由基的青色染料,形成自由基的品红色染料,形成自由基的黄色染料,黑色染料 形成自由基或无色产物形成基团,所述Cp在偶联位置被二价连接基团L取代; 染料是在可见光谱中显示出选择性吸收的染料基团; 并且其中所述-L-染料基团在所述成色剂基团与伯胺显影剂的氧化产物反应时偶联。