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    • 1. 发明授权
    • Fragmentable electron donor compounds combined with broad blue spectral sensitization
    • 可分散的电子给体化合物与广泛的蓝色光谱增感相结合
    • US06509144B1
    • 2003-01-21
    • US09236821
    • 1999-01-25
    • Kenneth J. ReedJoseph P. PepeJames A. FridayJon N. EikenberryYun C. ChangAnnabel A. MuenterJerome R. Lenhard
    • Kenneth J. ReedJoseph P. PepeJames A. FridayJon N. EikenberryYun C. ChangAnnabel A. MuenterJerome R. Lenhard
    • G03C110
    • G03C1/10G03C1/0053G03C1/28G03C1/29
    • This invention comprises a photographic element comprising a support and at least one blue sensitive silver halide emulsion layer containing a tabular grain silver halide emulsion, or an emulsion in which the halide content is at least 50% chloride and no more than 5% iodide, wherein the emulsion is spectrally sensitized with at least one dye providing a peak sensitization between 446 and 500 nm and at least one dye providing a peak sensitization between 400 and 445 nm and additionally sensitized with a fragmentable electron donor of the formula: X—Y′. or an electron donor which contains an —XY′ moiety; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is H a base, &bgr;−, is covalently linked directly or indirectly to X. and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ fragments to give the radical X• and the leaving fragment Y′; and, optionally, 3) the radical X• has an oxidation potential ≦−0.7V (that is, equal to or more negative than about −0.7 V).
    • 本发明包括一种照相元件,其包括载体和至少一种含有片状银卤化银乳剂的蓝色感光卤化银乳剂层,或其中卤化物含量为至少50%氯化物和不超过5%碘化物的乳液,其中 该乳液用至少一种提供446和500nm之间的峰敏感的染料和至少一种提供400和445nm之间的峰敏感的染料进行光谱增感,并用下式X-Y'的可裂解的电子给体进一步增感。 或含有-XY'部分的电子给体;其中X是电子给体部分,Y'是离开质子H或离去基团Y,条件是如果Y'是H,则基团是共价连接的 直接或间接地与X并且其中:1)XY'具有介于0和约1.4V之间的氧化电位; 和2)X-Y'片段的氧化形式,得到X基团和离去片段Y'; 和任选地,3)基团X的氧化电位<= -0.7V(即等于或大于约-0.7V的负)。
    • 2. 发明授权
    • Color photographic element containing a fragmentable electron donor for improved photographic response
    • 含有可裂解电子供体的彩色照相元件,用于改善照相反应
    • US06531272B1
    • 2003-03-11
    • US09236708
    • 1999-01-25
    • James A. FridayJoseph P. PepeJeffrey C. HansenAnnabel A. MuenterJerome R. Lenhard
    • James A. FridayJoseph P. PepeJeffrey C. HansenAnnabel A. MuenterJerome R. Lenhard
    • G03C108
    • G03C7/3022G03C1/0051G03C1/10G03C2001/03594G03C2200/24
    • This invention comprises a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said layers comprises large tabular grains having an average circular diameter of greater than 2 &mgr;m and contains a fragmentable electron donating compound is of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is covalently linked directly or indirectly to X, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X. and the leaving fragment Y′; and, optionally, 3) the radical X. has an oxidation potential ≦−0.7V (that is, equal to or more negative than about −0.7V).
    • 本发明包括一种多色照相元件,其包含支持青色染料成像单元的载体,该单元包含至少一种与其相关联的至少一种形成青色染料的成色剂的感红卤化银乳剂层,品红染料影像形成单元包括 至少一种感绿卤化银乳剂层,其与至少一种品红色染料形成成色剂相关联,黄色染料影像形成单元,其包含至少一种蓝敏感卤化银乳剂层,其具有至少一种形成黄色染料的成色剂 ,其中所述层中的至少一个包括平均圆直径大于2μm的大片状颗粒,并且含有可分裂的给电子化合物具有下式:XY'或含有式-X-Y部分的化合物 '; 其中X是电子给体部分,Y'是离开质子H或离去基团Y,条件是如果Y'是质子,则碱,β - 与X直接或间接共价连接,并且其中:1 )XY'具有介于0和约1.4V之间的氧化电位; 和2)X-Y'的氧化形式发生键断裂反应,得到X基团和离去片段Y'; 和任选地,3)基团X的氧化电位<= -0.7V(即等于或大于约-0.7V的负值)。
    • 3. 发明授权
    • Fragmentable electron donor compounds in combination with high bromide tabular grain emulsions
    • 可分散电子给体化合物与高溴化物片状颗粒乳剂的组合
    • US06518008B1
    • 2003-02-11
    • US09236818
    • 1999-01-25
    • James A. FridayRoger A. BryantAnnabel A. MuenterJerome R. Lenhard
    • James A. FridayRoger A. BryantAnnabel A. MuenterJerome R. Lenhard
    • G03C108
    • G03C1/10G03C1/0051G03C7/3022G03C7/392G03C2200/24
    • A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula X—Y′ or an electron donor which contains an —XY′ moiety; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is covalently linked directly or indirectly to X, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ fragments to give the radical X* and the leaving fragment Y′;  and, optionally, 3) the radical X* has an oxidation potential
    • 一种多色照相元件,其特征在于,包含支持青色染料成像单元的载体,所述载体包括至少一种与其相关联的至少一种形成青色染料的成色剂的红色感光卤化银乳剂层,品红色染料影像形成单元包括至少一种绿色 具有与至少一种品红色染料形成成色剂相关联的感光卤化银乳剂层,黄色染料成像单元,其包含至少一种感蓝卤化银乳剂层,其具有至少一种形成黄色染料的成色剂,其中在 所述卤化银乳剂层中的至少一种含有卤化物含量为至少95%溴化物和小于约5%碘化物的片状粒状卤化银乳剂,所述碘化物基本均匀地分布在所述乳液的卤化银颗粒中,所述 用式XY'的可裂解电子给体或含有-XY'部分的电子给体使乳液敏化; 其中X是电子给体部分,Y'是离开质子H或离去基团Y,条件是如果Y'是质子,则碱,β - 与X直接或间接共价连接,并且其中:1 )XY'具有介于0和约1.4V之间的氧化电位; 和2)X-Y'片段的氧化形式,得到基团X *和离去片段Y'; 和任选地,3)基团X *具有<-0.7V的氧化电位。
    • 4. 发明授权
    • Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler for improved photographic response
    • 含有可裂解的电子给体的彩色照相元件与一个等效的偶联剂结合以改善照相反应
    • US06242170B1
    • 2001-06-05
    • US09468023
    • 1999-12-20
    • Joseph P. PepeJeffrey C. HansenJames A. FridayAnnabel A. MuenterDavid T. Southby
    • Joseph P. PepeJeffrey C. HansenJames A. FridayAnnabel A. MuenterDavid T. Southby
    • G03C108
    • G03C1/0051G03C1/04G03C1/10G03C1/12G03C7/3022G03C7/30511G03C7/30547G03C7/392G03C2200/24Y10S430/156
    • This invention provides a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises large tabular grains having an average equivalent circular diameter of greater than 3 &mgr;m and contains a one equivalent image dye-forming coupler and a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is covalently linked directly or indirectly to X, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y′; and, optionally, 3) the radical X• has an oxidation potential ≦−0.7 V (that is, equal to or more negative than about −0.7 V).
    • 本发明提供了一种多色照相元件,其包含载体,该支持体含有青色染料影像形成单元,该单元包含至少一种与其相关联的至少一种形成青色染料的成色剂的感红卤化银乳剂层,品红染料影像形成单元包括 至少一种感绿卤化银乳剂层,其与至少一种品红色染料形成成色剂相关联,黄色染料影像形成单元,其包含至少一种蓝敏感卤化银乳剂层,其具有至少一种形成黄色染料的成色剂 其中所述乳剂层中的至少一个包括平均当量圆直径大于3μm的大片状颗粒,并且含有一个等效的图像染料形成成色剂和下式的可裂解的给电子化合物:XY' 含有式-X-Y'的部分; 其中X是电子给体部分,Y'是离开质子H或离去基团Y,条件是如果Y'是质子,则碱,β - 与X直接或间接共价连接,并且其中:1 )XY'具有介于0和约1.4V之间的氧化电位; 和2)X-Y'的氧化形式发生键断裂反应,得到X基团和离去片段Y'; 并且可选地,3)基团X具有氧化电位<= -0.7V(即等于或大于约-0.7V的负值)。
    • 7. 发明授权
    • Photographic recording material for accelerated development
    • 用于加速发展的摄影记录材料
    • US06756188B2
    • 2004-06-29
    • US10244270
    • 2002-09-16
    • John E. KeevertStephen P. SingerKenneth J. ReedKenneth J. LushingtonMary C. BrickJames A. Friday
    • John E. KeevertStephen P. SingerKenneth J. ReedKenneth J. LushingtonMary C. BrickJames A. Friday
    • G03C746
    • G03C7/30594G03C1/0051G03C1/04G03C7/3022G03C7/3029G03C7/30541G03C2007/3034Y10S430/156
    • This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising, an electron transfer agent releasing compound represented by the formula (I): CAR1—(L)n—ETA  (I) wherein: CAR1 is a carrier moiety which is capable of releasing —(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 and the total sum of the Hammett sigma(para) values of the substituents on the 1-aryl ring is 0.51 or less, the ETA being bonded to L or CAR1 through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring; and a development accelerator releasing compound represented by the formula (II): CAR2—(SAM)—NX1—NX2X3  (II) wherein: CAR2 is a carrier moiety which is capable of releasing —(SAM)—NX1—NX2X3 on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and —NX1—NX2X3 is a hydrazine group wherein X1, X2 and X3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl or sulfonyl groups with the proviso that at least one of X1, X2 and X3 is hydrogen.
    • 本发明涉及一种照相元件,其中包含支持体和至少两个卤化银乳剂层,还包含由式(I)表示的电子转移剂释放化合物:其中:CAR 1是能够释放的载体部分 - (L)n-ETA与氧化显影剂反应; L为二价连接基团,n为0,1或2; 和ETA是具有大于或等于2.40的计算对数分配系数(c log P)的可释放的1-芳基-3-吡唑烷酮电子转移剂,并且1-位的取代基的哈米特σ(对)值的总和, 芳基环为0.51以下,ETA通过2位的氮原子或与吡唑烷酮环的3位相连的氧键连接至L或CAR 1;以及由吡唑烷酮环的3位表示的显影促进剂释放化合物 式(II):其中:CAR 2是能够与氧化显影剂反应释放 - (SAM)-NX 1 -XX 2 X 3的载体部分; SAM是银 与载体部分连接的可吸收部分,与氧化显影剂反应释放; 和-X 1 -NX 2 X 3是其中X 1,X 2和X 3独立地为氢或选自烷基,芳基,羰基或磺酰基的取代基的肼基团 条件是X 1,X 2和X 3中的至少一个是氢。
    • 10. 发明授权
    • Photographic elements containing light scattering particles
    • 含有光散射颗粒的照相元件
    • US6027869A
    • 2000-02-22
    • US213644
    • 1998-12-17
    • Joe E. MaskaskyKenneth J. ReedVictor P. ScacciaJames A. Friday
    • Joe E. MaskaskyKenneth J. ReedVictor P. ScacciaJames A. Friday
    • G03C7/00G03C1/005G03C1/035G03C1/04G03C1/08G03C1/10G03C1/825G03C7/30
    • G03C1/8255G03C1/0051G03C1/04G03C1/10G03C7/30Y10S430/151
    • A photographic element is disclosed having at least one emulsion layer comprised of (a) radiation-sensitive silver halide grains, (b) sensitizer for the radiation-sensitive silver halide grains, (c) hydrophilic colloid vehicle, including peptizer for the radiation-sensitive silver halide grains, and (d) light scattering particles, wherein (a) the radiation-sensitive silver halide grains include tabular grains (1) having an aspect ratio of at least 2.0, (2) having {111} major faces, (3) containing greater than 50 mole percent bromide, based on silver, and (4) accounting for greater than 50 percent total grain projected area, (b) the sensitizer includes a fragmentable electron donating sensitizer, (c) the peptizer is a water dispersible cationic starch, and (d) the light scattering particles have aspect ratios of less than 1.5 and can be dissolved for removal from the emulsion layer. The photographic elements exhibit enhanced imaging speed and can be employed for color or black-and-white photographic imaging.
    • 公开了一种照相元件,其具有至少一个由(a)辐射敏感卤化银颗粒组成的乳剂层,(b)用于辐射敏感卤化银颗粒的敏化剂,(c)亲水胶体载体,包括用于辐射敏感的卤化银颗粒的胶溶剂 卤化银颗粒和(d)光散射颗粒,其中(a)辐射敏感性卤化银颗粒包括纵横比为至少2.0,(2)具有{111}主面的片状颗粒(1),(3 ),(b)占总颗粒投影面积的50%以上;(b)敏化剂包括可裂解的给电子增感剂,(c)胶溶剂是水分散性阳离子 淀粉,和(d)光散射颗粒具有小于1.5的纵横比,并且可溶解以从乳剂层中除去。 照相元件表现出增强的成像速度,并且可用于彩色或黑白照相成像。