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    • 4. 发明授权
    • Color reversal photographic element containing emulsion sensitized with organomercapto AU(1) complexes and rapid sulfiding agents
    • 含有有机巯基AU(1)络合物和快速硫化剂敏化的乳液的彩色反转照相元件
    • US06322961B1
    • 2001-11-27
    • US09666268
    • 2000-09-21
    • Wai K. LamRoger LokDavid W. Sandford
    • Wai K. LamRoger LokDavid W. Sandford
    • G03C106
    • G03C1/09G03C7/3022
    • A color reversal photographic element is disclosed comprising a support having coated thereon a silver halide emulsion layer comprising a silver halide emulsion chemically sensitized in the presence of an organomercapto Au(I) complex having the formula [L—Au—L]M wherein M is a cationic counter ion and each L is an organomercapto ligand which has antifogging, stabilizing or sensitizing properties, and a rapid sulfiding agent represented by structure SS-1 wherein each of the R1, R2, R3, and R4 groups independently represents an alkylene, cycloalkylene, carbocyclic arylene, heterocyclic arylene, alkarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R1 and R2 or R3 and R4 can complete a 5- to 7-membered heterocyclic ring; and each of the B1, B2, B3, and B4 groups independently is hydrogen or represents a carboxylic, sulfinic, sulfonic, hydroxamic, mercapto, sulfonamido or primary or secondary amino nucleophilic group, with the proviso that at least one of the B1R1 to B4R4 groups contains the nucleophilic group bonded to a urea nitrogen atom through a 1- or 2-membered chain. The use of the combination of the two classes of sensitizers of the present invention makes it possible to sensitize the silver halide emulsions employed in color reversal elements at a wider range of temperature. This robustness to temperature translates to less variable performance of the silver halide emulsion. Additionally, the use of individual gold and sulfur sensitizers advantageously makes it possible to sensitize silver halide reversal photographic elements such that the sulfur to gold ratio can be varied independently.
    • 公开了一种彩色反转照相元件,其包括在其上涂覆有卤化银乳剂层的载体,所述卤化银乳剂层包含在具有所述形成结构的有机巯基Au(I)络合物的存在下化学增感的卤化银乳剂,M是阳离子抗衡离子,并且每个L是 具有防雾,稳定或敏化性能的有机巯基配体和由结构SS-1表示的快速硫化剂,其中R1,R2,R3和R4各自独立地表示亚烷基,亚环烷基,碳环亚芳基,杂环亚芳基,亚烷基或亚芳基 组; 或与它们所连接的氮原子一起取代,R1和R2或R3和R4可以完成5-至7-元杂环; B1,B2,B3和B4各自独立地为氢或表示羧基,亚磺酸,磺酸,异羟肟酸,巯基,亚磺酰氨基或伯或仲氨基亲核基团,条件是至少一个B1R1至B4R4 基团通过1-或2-元链包含与尿素氮原子键合的亲核基团。 使用本发明的两类敏化剂的组合使得可以在更宽的温度范围内使用在彩色反转元件中的卤化银乳剂敏化。 对于温度的这种鲁棒性意味着卤化银乳剂的可变性能变小。 此外,使用单独的金和硫敏化剂有利地使得可以使卤化银反转照相元件敏化,使得硫与金的比率可以独立地变化。