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1. 发明授权

US5350667A Photographic elements containing magenta couplers and process for using same 失效
标题翻译：含有品红色成色剂的摄影元件及其使用方法
公开(公告)号：US5350667A
公开(公告)日：1994-09-27
申请号：US79538
申请日：1993-06-17
申请人： Stephen P. Singer , Paul B. Merkel , Bernard Arthur J. Clark , Paul Louis R. Stanley
发明人： Stephen P. Singer , Paul B. Merkel , Bernard Arthur J. Clark , Paul Louis R. Stanley
IPC分类号： G03C7/305 , G03C7/384
CPC分类号： G03C7/30529 , G03C7/384
摘要： A photographic element contains a light-sensitive silver halide layer having associated therewith a coupler which is a pyrazolone compound with a coupling-off substituent at the -4-position, said compound having the formula: ##STR1## wherein each R.sup.1 is independently a substituted or unsubstituted alkylsulfonyl or arylsulfonyl group; each R.sup.2 and R.sup.3 is independently a substituent; R.sup.4, R.sup.5, and R.sup.6 are independently hydrogen or substituted or unsubstituted alkyl groups; m and n are independently 0 or 1 but both are not 0; x1 and x2 are independently 0 to 5; and y is 0 to 3; provided that each of R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is selected such that the calculated log P of the thiophenol corresponding to the substituent at the 4-position of the pyrazolone is at least 4. The photographic element provides an improved combination of low continued coupling together with a magenta hue exhibiting a long wavelength of maximum absorption.
摘要翻译：照相元件含有与其相关联的成色剂的感光卤化银层，其为在-4位具有偶联取代基的吡唑啉酮化合物，所述化合物具有下式：其中每个R 1独立地是取代的或未取代的烷基磺酰基或芳基磺酰基; 每个R 2和R 3独立地是取代基; R4，R5和R6独立地是氢或取代或未取代的烷基; m和n独立地为0或1，但都不为0; x1和x2分别为0〜5; y为0〜3; 条件是选择R3，R4，R5和R6中的每一个，使得对应于吡唑啉酮的4-位上的取代基的苯硫酚的计算log P为至少4.照相元件提供了低持续的改进的组合与显示长波长最大吸收的品红色相连。

2. 发明授权

US5256528A Magenta image-dye couplers of improved hue 失效
标题翻译：洋红色图像染料成色剂改善色调
公开(公告)号：US5256528A
公开(公告)日：1993-10-26
申请号：US872880
申请日：1992-04-23
申请人： Paul B. Merkel , Stephen P. Singer , Bernard Arthur Clark , Paul Louis R. Stanley
发明人： Paul B. Merkel , Stephen P. Singer , Bernard Arthur Clark , Paul Louis R. Stanley
IPC分类号： G03C7/305 , G03C1/08 , G03C7/26 , G03C7/32
CPC分类号： G03C7/30529
摘要： A photographic element and process provide a magenta coupler of the formula: ##STR1## wherein (a) at least one of X1, X2 and R1 and at least one of R2 and R3 is a substituent individually selected from carbamoyl, alkoxycarbonyl, aryloxycarbonyl, sulfamoyl, alkylsulfonyl, arylsulfonyl, alkoxysulfonyl, aryloxysulfonyl, alkylsulfoxyl, arylsulfoxyl, acyloxy, cyano, nitro, and trifluoromethyl;(b) the substituents X1, X2, R1, R2 and R3 not selected from the (a) group may be selected from alkyl, alkoxy, aryloxy, acylamino, alkylthio, arylthio, sulfonamido, alkylureido, arylureido, alkoxycarbonylamino, aryloxycarbonylamino, and halogen and in the case of R3 hydrogen;(c) substituents R1 and R2 are para or meta to the carbon attached to the nitrogen atom;(d) a and b are 1 to 3;(e) Q is an alkylthio or arylthio coupling-off group.The element provides a deeper magenta hue and reduced blue absorption by the resulting magenta dye.
摘要翻译：照相元件和方法提供下式的品红成色剂：其中（a）X 1，X 2和R 1中的至少一个和R 2和R 3中的至少一个是分别选自氨基甲酰基，烷氧基羰基，芳氧基羰基，氨磺酰基，烷基磺酰基，芳基磺酰基，烷氧基磺酰基，芳氧基磺酰基，烷基亚砜基，芳基亚砜基，酰氧基，氰基，硝基和三氟甲基; （b）未选自（a）基团的取代基X1，X2，R1，R2和R3可以选自烷基，烷氧基，芳氧基，酰氨基，烷硫基，芳硫基，亚磺酰氨基，烷基脲基，芳基脲基，烷氧基羰基氨基，芳氧基羰基氨基和卤素在R3氢的情况下; （c）取代基R 1和R 2与连接在氮原子上的碳对位或间位; （d）a和b为1〜3; （e）Q是烷硫基或芳硫基离去基团。该元素提供更深的品红色色调，并由所得品红色染料减少蓝色吸收。

3. 发明授权

US4900657A Novel pyrazolone photographic color couplers and photographic elements containing them 失效
标题翻译：新型吡唑啉酮照相彩色成色剂和含有它们的摄影元素
公开(公告)号：US4900657A
公开(公告)日：1990-02-13
申请号：US358047
申请日：1989-05-30
申请人： Michael W. Crawley , Paul Louis R. Stanley
发明人： Michael W. Crawley , Paul Louis R. Stanley
IPC分类号： G03C7/38 , C07D231/52 , G03C7/384
CPC分类号： G03C7/384 , C07D231/52
摘要： Pyrazolone magenta dye-forming couplers are described which provide excellent formaldehyde stability and which result in dyes having good stability to light, heat and moisture and which have higher .beta.max values as compared with dyes obtained from prior described pyrazolone couplers.

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