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    • 7. 发明授权
    • Heat development of elements containing methine-dye releasing couplers
    • 含有次甲基染料释放成色剂的元素的热显影
    • US5470688A
    • 1995-11-28
    • US250146
    • 1994-05-27
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • John TexterThomas R. WelterDavid T. SouthbyJared B. Mooberry
    • G03C8/10G03C8/40G03C8/12
    • G03C8/10G03C8/4013Y10S430/159
    • In accordance with this invention a heat-developable photographic color diffusion transfer element is provided, where this element comprises a dimensionally stable support and one or more layers comprising radiation sensitive silver halide, an organic silver salt oxidizing agent, a reducing agent, a methine-dye releasing compound, and a binder, wherein said methine-dye is heat diffusible in said element, and wherein said methine-dye releasing compound is of the structureCp--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.
    • 根据本发明,提供了一种可热显影的照相彩色扩散转移元件,其中该元件包括尺寸稳定的支撑体和一个或多个包含辐射敏感卤化银,有机银盐氧化剂,还原剂,次甲基 - 染料释放化合物和粘合剂,其中所述次甲基染料在所述元件中是可热扩散的,并且其中所述次甲基染料释放化合物具有结构Cp-LM(I),其中Cp是在与 二价连接基团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 。
    • 8. 发明授权
    • Heat image separation with phenolic thermal solvents and dye releasing
couplers
    • 用酚类热溶剂和染料释放成色剂进行热图像分离
    • US5512410A
    • 1996-04-30
    • US323967
    • 1994-10-17
    • John TexterThomas R. WelterDavid T. SouthbyJared B. MooberryDavid S. Bailey
    • John TexterThomas R. WelterDavid T. SouthbyJared B. MooberryDavid S. Bailey
    • G03C8/10G03C8/40G03C8/50
    • G03C8/4033G03C8/10G03C8/4066
    • An aqueous-developable photographic color diffusion transfer element comprising 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 dye-releasing coupler, a dye-receiving layer intermediate said support and dye-releasing coupler containing layers, a stripping layer intermediate said dye-receiving layer and any layers containing silver halide or dye-releasing coupler, and hydrophilic binder, wherein said dye is heat diffusible in said binder and thermal solvent, wherein said dye-releasing coupler is of the structureCp--L--DyewhereCp is a coupler radical 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, and such that said Dye radical is subsequently released from the --L--Dye group;where said stripping layer contains a stripping agent; andwherein said thermal solvent has the structure I: ##STR1## wherein (a) Z.sub.1, Z.sub.2, Z.sub.3, Z.sub.4, and Z.sub.5 are substituents, the Hammet sigma parameters of Z.sub.2, Z.sub.3, and Z.sub.4 sum to give a total, .SIGMA., of at least -0.28 and less than 1.53;(b) the calculated logP for I is greater than 3 and less than 10, is disclosed.
    • 一种含水显影照相色彩扩散转移元件,包括一个且仅一维稳定的载体和一个或多个包含辐射敏感卤化银的层,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,染料 接收层介于所述支持和释放染料的成色剂层之间,所述染料接收层和包含卤化银或染料释放成色剂的任何层的剥离层和亲水性粘合剂,其中所述染料在所述粘合剂中热扩散,并且热 溶剂,其中所述染料释放成色剂具有结构Cp-L-Dye,其中Cp是在与二价连接基团L的偶联位置取代的成色剂基团; 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脱离,并且使得所述染料自由基随后从-L-染料基团中释放; 其中所述剥离层包含剥离剂; 并且其中所述热溶剂具有以下结构I:其中(a)Z 1,Z 2,Z 3,Z 4和Z 5为取代基,Z 2,Z 3和Z 4的Hammetσ参数相加, SIGMA至少为-0.28且小于1.53; (b)公开了I的计算logP大于3并小于10。
    • 10. 发明授权
    • Photographic element containing a high-dye-yield coupler for producing a yellow hue
    • 含有用于产生黄色调的高染料收率成色剂的摄影元件
    • US06569612B1
    • 2003-05-27
    • US09943073
    • 2001-08-30
    • Lelia CosimbescuJared B. MooberryDavid T. SouthbyLouis E. Friedrich
    • Lelia CosimbescuJared B. MooberryDavid T. SouthbyLouis E. Friedrich
    • G03C146
    • G03C7/36G03C1/498Y10S430/151Y10S430/156
    • A color photographic element is disclosed comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, comprising at least one imaging layer comprising a light-sensitive silver-halide emulsion, binder, and a yellow coupler represented by the following structure: Wherein COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first yellow dye L is a linking group selected from the group consisting of —OC(═O)—, —OC(═S)—, —SC(═O)—, and —SC(═S)—, and —DYE is a releasable second yellow dye or yellow dye precursor, wherein COUP is an acetanilide compound that contains one or more electron-withdrawing groups such that the pKa at the coupling site is less than 8.7. Such yellow couplers improve activity and enhance dye densities.
    • 公开了一种彩色照相元件,其包括至少三个在不同波长区域具有各自敏感度的光敏单元,其包含至少一个成像层,该成像层包含感光卤化银乳剂,粘合剂和由以下物质表示的黄色成色剂 结构:其中COUP是能够与氧化的显色剂偶联以形成第一黄色染料的照相成色剂残基L是选自-OC(= O) - , - OC(= S) - , - SC(= O) - 和-SSC(= S) - ,-DYE是可释放的第二黄色染料或黄色染料前体,其中COUP是含有一个或多个吸电子基团的乙酰苯胺化合物,使得pKa在 偶联位点小于8.7。 这种黄色成色剂提高了活性并提高了染料密度。