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    • 4. 发明授权
    • Hydrogen bond accepting groups on thermal solvents for image separation
systems
    • 用于图像分离系统的热溶剂上的氢键接受基团
    • US5468587A
    • 1995-11-21
    • US73826
    • 1993-06-08
    • David S. BaileyAlbert J. Mura, Jr.Shari L. Eiff
    • David S. BaileyAlbert J. Mura, Jr.Shari L. Eiff
    • G03C8/40G03C8/12
    • G03C8/402G03C8/4013
    • An aqueous-developable chromogenic photographic heat-transferable non-aqueous dye-diffusion-transfer photographic element is disclosed, wherein said element comprises radiation sensitive silver halide, a dye-providing compound that forms or releases a heat-transferable image dye upon reaction of said compound with the oxidation product of a primary amine developing agent, a hydrophilic binder, and a thermal solvent for facilitating non-aqueous diffusion transfer according to formula (I) ##STR1## wherein AH is a hydrogen bond donating group with an aqueous pK.sub.a value for proton loss of greater than 6;L.sup.1 and L.sup.2 are each independently divalent linking groups consisting of groups of 1 to 12 atoms or are independently absent;m is 1, 2, or 3;Q comprises a group of 2 to 15 carbon atoms selected from the group consisting of aromatic rings, alkyl chains, alkyl rings, or ring-chain combinations, optionally substituted with substituents, Z, consisting of alkyl groups or halogens;B is a hydrogen bond accepting group with an aqueous pK.sub.a value for proton gain of less than 6;n is 1 or 2;the groups AH and B cannot hydrogen bond to form a ring of either 5 or 6 atoms;R is an alkyl, aryl and alkylaryl group of from 1 to 18 carbon atoms;the calculated log of the octanol/water partition coefficient (clogP) is greater than 3 and less than 10.
    • 公开了含水可显影的显色照相可热转印非水性染料扩散转印照相材料,其中所述元件包括辐射敏感卤化银,一种提供染料的化合物,其在所述颜料反应反应时形成或释放可热转移的图像染料 与伯胺展开剂,亲水性粘合剂和热溶剂的氧化产物的化合物,用于促进根据式(I)的非水扩散转移。其中AH是具有水性的氢键供体基团 质子损失的pKa值大于6; L1和L2各自独立地为由1至12个原子的基团组成的二价连接基团或独立地不存在; m为1,2或3; Q包括选自芳基环,烷基链,烷基环或环 - 链组合的2至15个碳原子的基团,任选被取代基Z取代,Z由烷基或卤素组成; B是具有小于6的质子增益的pKa值的氢键接受基团; n为1或2; 基团AH和B不能氢键形成5或6个原子的环; R是1至18个碳原子的烷基,芳基和烷基芳基; 辛醇/水分配系数(clogP)的计算对数大于3且小于10。
    • 5. 发明授权
    • Photothermographic composition and process
    • 光热成像和工艺
    • US4264725A
    • 1981-04-28
    • US80376
    • 1979-10-01
    • John W. Reeves
    • John W. Reeves
    • G03C1/498G03C1/02
    • G03C1/49863G03C1/025G03C1/04G03C2200/27G03C8/402
    • In a photothermographic silver halide composition capable of being coated on a support comprising a hydrophilic photosensitive silver halide emulsion containing a gelatino peptizer with an organic solvent mixture, a hydrophobic binder and an oxidation-reduction image-forming composition comprising (i) a silver salt of a long-chain fatty acid with (ii) an organic reducing agent, improvements are provided by a solvent mixture comprising a combination of (A) an alcohol photographic speed-increasing solvent which is a compound selected from the group consisting of benzyl alcohol photographic speed-increasing solvents and 2-phenoxyethanol speed-increasing solvents with (B) an aromatic hydrocarbon solvent that is compatible with the alcohol solvent and (C) 0 to 10% by weight of the solvent mixture of such hydrophobic binder. The described photothermographic composition can be prepared by very thoroughly mixing, such as ultrasonic wave mixing, (I) a hydrophilic photosensitive silver halide emulsion with (II) an organic solvent mixture comprising described (A), (B) and (C), and then very thoroughly mixing the resulting product with (III) comprising (a) a hydrophobic binder and (b) an oxidation-reduction image-forming composition comprising (i) a silver salt of a long-chain fatty acid with (ii) an organic reducing agent, typically in an organic solvent. The photothermographic composition can be coated on a suitable support to provide a photothermographic element.
    • 在能够涂覆在包含含有有机溶剂混合物的明胶胶溶剂的亲水感光卤化银乳剂的载体上的光热成像卤化银组合物中,疏水性粘合剂和氧化还原成像组合物包含(i) 具有(ii)有机还原剂的长链脂肪酸,通过溶剂混合物提供改进,所述溶剂混合物包含(A)醇摄影速度提高溶剂的组合,所述溶剂混合物是选自苄醇摄影速度 - 增加溶剂和2-苯氧基乙醇增速溶剂与(B)与醇溶剂相容的芳族烃溶剂和(C)0至10重量%的这种疏水性粘合剂的溶剂混合物。 所描述的光热成像组合物可以通过非常充分地混合,例如超声波混合,(I)亲水性感光卤化银乳剂和(II)包含所述(A),(B)和(C)的有机溶剂混合物,以及 然后将得到的产物与包含(a)疏水性粘合剂的(III)非常充分混合,和(b)氧化还原成像组合物,其包含(i)长链脂肪酸的银盐与(ii)有机 还原剂,通常在有机溶剂中。 可以将光热敏成像组合物涂覆在合适的载体上以提供光热敏成像元件。
    • 10. 发明授权
    • Silver halide color photographic light-sensitive material and color image formation method using the same
    • 卤化银彩色摄影感光材料和使用其的彩色图像形成方法
    • US06228556B1
    • 2001-05-08
    • US08827253
    • 1997-03-28
    • Masahiro AsamiKazuhiko MatsumotoToshiki Taguchi
    • Masahiro AsamiKazuhiko MatsumotoToshiki Taguchi
    • G03C836
    • G03C8/4006G03C1/0051G03C1/42G03C1/49827G03C5/261G03C5/263G03C7/3022G03C7/413G03C8/402G03C8/404G03C8/4086G03C2007/3034
    • Disclosed is a silver halide color photographic light-sensitive material which is capable of forming an image by: after exposing a light-sensitive material, which comprises a first support having thereon at least one photographic light-sensitive layer comprising a light-sensitive silver halide emulsion, a developing agent, a compound capable of forming a dye upon coupling reaction with an oxidation product of the developing agent and a binder; attaching said light-sensitive material to a processing material, which comprises a second support having thereon a base and/or a base precursor, in such a way that the coated surfaces of the two materials faced each other, in the presence of a small amount of water which corresponds to from {fraction (1/10)} to 1 time water necessary for giving maximum swelling of all coated layers constituting the light-sensitive material and the processing material; and then heating the light-sensitive material and the processing material, wherein at least one said light-sensitive layer contains an emulsion having silver halide grains having a silver chloride content of 50 mol % or more, wherein the silver halide grains are tabular grains having (i) a main outer surface constituted by (100) faces, (ii) having a rectangular shape with adjacent major face (projection plane) edge ratios being from 1:1 to 1:2, and (iii) having an aspect ratio of 2 or more.
    • 公开了一种能够通过以下方式形成图像的卤化银彩色照相感光材料:在曝光感光材料之后,该感光材料包括其上具有至少一个包含感光卤化银的照相感光层的第一支持体 乳液,显影剂,能够与显影剂和粘合剂的氧化产物偶联反应形成染料的化合物; 将所述感光材料附着到处理材料上,所述处理材料包括其上具有基底和/或基底前体的第二支撑体,使得两种材料的涂覆表面在少量存在下彼此面对 对于构成感光材料和处理材料的所有涂层的最大溶胀所必需的从{部分(1/10)}到1次水的水; 然后加热感光材料和处理材料,其中至少一个所述感光层含有具有氯化银含量为50摩尔%以上的卤化银颗粒的乳液,其中卤化银颗粒是具有 (i)由(100)面构成的主外表面,(ii)具有相邻主面(投影面)边比例为1:1〜1:2的矩形形状,(iii)纵横比为 2以上。