Image-recording materials
    4.
    发明授权
    Image-recording materials 失效
    图像记录材料

    公开(公告)号:US5569574A

    公开(公告)日:1996-10-29

    申请号:US556534

    申请日:1995-11-13

    CPC分类号: G03C8/10 G03C8/4033

    摘要: There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.

    摘要翻译: 描述了包含具有至少一个环状1,3-硫 - 氧部分的化合物的热显影光敏图象记录材料。 该化合物在照相处理组合物中是稳定的,但是在存在作为显影功能的银离子和/或可溶性银络合物的成像分布的存在下能够进行裂解以释放相应于 银离子和/或可溶性银络合物。 试剂包括照相用的基团,例如完整的染料或染料中间体。

    N-substituted triarylmethane sulfonamides and method of preparation
    5.
    发明授权
    N-substituted triarylmethane sulfonamides and method of preparation 失效
    N-取代三芳基甲烷磺酰胺及其制备方法

    公开(公告)号:US5399709A

    公开(公告)日:1995-03-21

    申请号:US076213

    申请日:1993-06-11

    摘要: A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. The N-substituted triarylmethane sulfonamides can be represented by the formulae: ##STR1## wherein B is a carbocyclic ring or rings; T is a 5- or 6-membered ring; Y is a moiety selected from ##STR2## wherein E, positioned ortho or para to said --OH group, is selected from --OH, --NH.sub.2, --NHR', --NR'R" and --NHSO.sub.2 R' wherein R' and R" each are lower alkyl groups having 1 to 6 carbon atoms or aralkyl wherein the aryl portion may be substituted with alkyl groups having 1 to 24 carbon atoms, and E' is hydrogen or a monovalent group that is substituted on one of the remaining carbon atoms; G and G' each are hydroxy or methoxy, provided one is hydroxy and the other is methoxy; and Z and Z' taken individually represent the moieties to complete the chromophoric system of a triarylmethane dye when said N-containing ring, T, is open and Z and Z' taken together represent the bridged moieties to complete the chromophoric system of a bridged triarylmethane dye when said N-containing ring, T, is open; and Y' represents the quinoid form of Y. Preferred embodiments comprise xanthene sulfonamides having N-aryl substituents, e.g., hydroquinone substituents. These compounds possess redox potentials ranging between about +200 to -500 millivolts and thus are useful as dyes for producing photographic, photothermographic, thermal, and pressure-induced images, as well as being useful as redox indicators in a wide variety of biological and chemical reactions.

    摘要翻译: 提供了一类新的N-取代的三芳基甲烷磺酰胺,其经历可逆的氧化成着色形式,并将氧化形式可逆地还原成无色形式。 N-取代的三芳基甲烷磺酰胺可以由下式表示:其中B是碳环或环; T是5-或6-元环; Y是选自图像(a)和(b)中的部分,其中位于所述-OH基团的邻位或对位的E选自-OH,-NH 2,-NHR',-NR'R' '和-NHSO 2 R',其中R'和R“各自是具有1至6个碳原子的低级烷基或芳烷基,其中芳基部分可以被具有1至24个碳原子的烷基取代,并且E'是氢或一价 在其余碳原子上被取代的基团; G和G'各自为羟基或甲氧基,其中一个为羟基,另一个为甲氧基; 并且Z和Z'分别表示当所述含N环T是开放的且Z和Z'代表桥连部分以完成桥联三芳基甲烷的发色体系时完成三芳基甲烷染料的发色体系的部分 当所述含氮环T为开时染色; Y'表示Y的醌型。优选的实施方案包括具有N-芳基取代基的呫吨磺酰胺,例如氢醌取代基。 这些化合物具有范围在约+200至-500毫伏之间的氧化还原电位,因此可用作产生照相,光热照相,热和压力诱导图像的染料,并且可用作各种生物和化学品中的氧化还原指示剂 反应。

    Thermally developable photosensitive element
    6.
    发明授权
    Thermally developable photosensitive element 失效
    耐热可感光元件

    公开(公告)号:US5368979A

    公开(公告)日:1994-11-29

    申请号:US187222

    申请日:1994-01-27

    IPC分类号: G03C1/498 G03C8/40

    CPC分类号: G03C1/498 G03C8/4013

    摘要: There are described heat-developable photosensitive image-recording elements which include a photosensitive silver halide emulsion, a silver salt and an image dye-providing material. The silver salt material is provided in a layer which is separated from the layer including the image dye-providing material by a layer containing the silver halide emulsion.

    摘要翻译: 描述了包括光敏卤化银乳剂,银盐和图像染料提供材料的热显影感光图像记录元件。 银盐材料设置在通过含有卤化银乳剂的层与包含图像染料提供材料的层分离的层中。

    Photographic products and processes
    9.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号:US4631344A

    公开(公告)日:1986-12-23

    申请号:US728210

    申请日:1985-04-29

    CPC分类号: C09B1/28 C09B1/40 G03C8/10

    摘要: Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.-carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.

    摘要翻译: 用于从预成型图像染料的色移染料前体成像地生成染料的照相产品和方法,所述前体具有至少一个基团,其中R是氢,烷基,条件是α-碳不含 与其连接的氢原子,芳基如苯基或取代的苯基,例如 对硝基苯基或杂环如吡啶; R 1 -R 6是氢,烷基,优选具有1至6个碳原子,或芳基; n为0或1; 并且T是含有噻唑烷-2-基的部分,其在所述噻唑烷-2-基的银辅助裂解时导致形成“IMAGE”基团,其可以在反应条件下被质子化,然后裂解 的所述,通过所述在染色发色团中质子化之后的“IMAGE”基团被定位地辅助或加速裂解。 在优选的实施方案中,前体是基本上无色的化合物。