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    Color photographic element containing a fragmentable electron donor for improved photographic response
    4.
    发明授权
    Color photographic element containing a fragmentable electron donor for improved photographic response 失效
    含有可裂解电子供体的彩色照相元件，用于改善照相反应

    公开(公告)号：US06531272B1

    公开(公告)日：2003-03-11

    申请号：US09236708

    申请日：1999-01-25

    申请人： James A. Friday ,  Joseph P. Pepe ,  Jeffrey C. Hansen ,  Annabel A. Muenter ,  Jerome R. Lenhard

    发明人： James A. Friday ,  Joseph P. Pepe ,  Jeffrey C. Hansen ,  Annabel A. Muenter ,  Jerome R. Lenhard

    IPC分类号： G03C108

    CPC分类号： G03C7/3022 ,  G03C1/0051 ,  G03C1/10 ,  G03C2001/03594 ,  G03C2200/24

    摘要： 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).

    摘要翻译： 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）。

    Electrochromic materials and devices
    6.
    发明授权
    Electrochromic materials and devices 有权
    电致变色材料和器件

    公开(公告)号：US07471437B2

    公开(公告)日：2008-12-30

    申请号：US10813885

    申请日：2004-03-31

    申请人： Jerome R. Lenhard ,  Deepak Shukla

    发明人： Jerome R. Lenhard ,  Deepak Shukla

    IPC分类号： G02F1/15

    CPC分类号： C09K9/02 ,  C09K2211/1092

    摘要： The present invention relates to an electrochromic material, and a device utilizing the electrochromic material, comprising a substituted-1,1-dioxo-thiopyran of the general structure I: wherein: X is carbon, nitrogen, oxygen, or sulfur; n is 0, 1 or 2; R3 is independently an electron withdrawing group or a substituted or unsubstituted alky or aryl group; R1 and R5 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and R2 and R4 each independently represent hydrogen, or an electron withdrawing group, or a substituted or unsubstituted alkyl group.

    摘要翻译： 本发明涉及一种电致变色材料，以及一种利用电致变色材料的装置，其包含通式I的取代的1,1-二氧代噻喃，其中：X为碳，氮，氧或硫; n为0,1或2; R3独立地是吸电子基团或取代或未取代的烷基或芳基; R 1和R 5各自独立地表示取代或未取代的烷基，取代或未取代的芳基或取代或未取代的杂环基; R2和R4各自独立地表示氢或吸电子基团，或取代或未取代的烷基。

    Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
    7.
    发明授权
    Silver halide light sensitive emulsion layer having enhanced photographic sensitivity 失效
    具有增强的照相感光度的卤化银感光乳剂层

    公开(公告)号：US6153371A

    公开(公告)日：2000-11-28

    申请号：US118552

    申请日：1998-07-17

    申请人： Samir Y. Farid ,  Ian R. Gould ,  Stephen A. Godleski ,  Jerome R. Lenhard ,  Annabel A. Muenter ,  Paul A. Zielinski

    发明人： Samir Y. Farid ,  Ian R. Gould ,  Stephen A. Godleski ,  Jerome R. Lenhard ,  Annabel A. Muenter ,  Paul A. Zielinski

    IPC分类号： G03C1/10 ,  G03C1/12 ,  G03C1/29

    CPC分类号： G03C1/12 ,  G03C1/10 ,  G03C1/29 ,  G03C2200/24

    摘要： This invention comprises a photographic element comprising a support and at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula:Q-XYwherein Q represents the atoms necessary to form a chromophore comprising an amidinium-ion, a carboxyl-ion or dipolar-amidic chromophoric system when conjugated with XY, and XY is a fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:1) XY has an oxidation potential between 0 and about 1.4 V;2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.cndot. has an oxidation potential

    摘要翻译： 本发明包括一种照相元件，其包括载体和至少一个卤化银乳剂层，其中卤化银用下式化合物敏化：Q-XY，其中Q表示形成包含脒鎓离子的发色团所需的原子， 羧基离子或偶极 - 酰胺发色体系，XY为可裂解的电子给体部分，其中X为电子给体基团，Y为氢以外的离去基团，其中：1）XY具有氧化电位 介于0和约1.4 V之间; 2）XY的氧化形式经历键断裂反应，得到基团X.和离去片段Y.在本发明的优选实施方案中，基团X的氧化势<-0.7V。

    Multicolor photographic element with improved latent image keeping
    10.
    发明授权
    Multicolor photographic element with improved latent image keeping 失效
    具有改进的潜像保持的多色摄影元件

    公开(公告)号：US06428947B1

    公开(公告)日：2002-08-06

    申请号：US09755419

    申请日：2001-01-05

    申请人： Sharon G. Johnston ,  Annabel A. Muenter ,  Steven P. Szatynski ,  Jerome R. Lenhard

    发明人： Sharon G. Johnston ,  Annabel A. Muenter ,  Steven P. Szatynski ,  Jerome R. Lenhard

    IPC分类号： G03C146

    CPC分类号： G03C7/39208 ,  G03C1/12 ,  G03C7/3003 ,  G03C7/3041 ,  G03C2003/006 ,  G03C2200/24 ,  Y10S430/156

    摘要： This invention comprises 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 red-sensitive or green-sensitive layers comprises a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein the speed gain deriving from addition of said compound to said layer is less than or equal to 0.05 log sensitivity units and 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 present in the emulsion layer, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X· and the leaving fragment Y′, and 3) the radical X· has an oxidation potential ≦−0.7V.

    摘要翻译： 本发明包括多色照相元件，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感红卤化银乳剂层，品红色染料影像形成单元至少包括 一种感绿卤化银乳剂层，其具有与至少一种品红色染料形成成色剂相关联的黄色染料影像形成单元，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， 其中所述红敏敏感层或绿敏层中的至少一个包含下式的可裂解供电子化合物：XY'或含有式-X-Y'部分的化合物;其中来自添加的速度增益 所述化合物与所述层的摩尔比小于或等于0.05log灵敏度单元，并且其中X是电子给体部分，Y'是离开质子H或离开 组Y，条件是如果Y'是质子，则在乳剂层中存在碱，β - ，其中：1）XY'具有在0和约1.4V之间的氧化电位; 2）氧化形式 的XY'经历键断裂反应以产生基团X.和离开的片段Y'，和3）基团X.具有氧化势<= -0.7V。