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    • 6. 发明授权
    • Silver halide color photographic material containing an imidazotriazole
cyan coupler
    • 含有咪唑并三唑青色成色剂的卤化银彩色照相材料
    • US5292630A
    • 1994-03-08
    • US18454
    • 1993-02-16
    • Yasuhiro ShimadaKozo Sato
    • Yasuhiro ShimadaKozo Sato
    • G03C7/305G03C7/38
    • G03C7/30529G03C7/3835
    • A silver halide color photographic material containing one or more imidazotriazole cyan couplers each having an electron attracting group with a .sigma.p of 0.35 or more in at least one layer on the support. The material provides a cyan color image having a sharp light absorption characteristic absorbing light having a relatively long wavelength falling within a narrow wavelength range. The imidazotriazole cyan coupler is of the following structural formula (I): ##STR1## where R.sub.1 represents a hydrogen atom or a substituent; R.sub.2 represents an electron attracting group having a Hammett's constant value .sigma.p of 0.35 or ore; X represents a hydrogen atom or a group released by coupling with an oxidation product of an aromatic primary amine color developing agent; and R.sub.1 or R.sub.2 may also be a divalent group forming a dimer or higher polymer, or they each may be bonded to a polymer chain to form a homopolymer or copolymer.
    • 含有一种或多种咪唑并三唑青色成色剂的卤化银彩色照相材料,其各自具有在载体上的至少一层中(Sigma)p为0.35以上的吸电子基团。 该材料提供了具有吸收特征的清晰吸收特征的青色图像,该特征吸收了波长较小的较长波长的光。 咪唑并三唑青色成色剂具有以下结构式(I):(*化学结构*)(I)其中R1表示氢原子或取代基; R2表示哈米特常数值(Sigma)p为0.35或矿石的吸电子基团; X表示氢原子或通过与芳族伯胺显色剂的氧化产物偶联而释放的基团; 并且R 1或R 2也可以是形成二聚体或更高级聚合物的二价基团,或者它们各自可以与聚合物链结合以形成均聚物或共聚物。
    • 7. 发明授权
    • Silver halide color photographic material
    • 卤化银彩色照相材料
    • US5272051A
    • 1993-12-21
    • US788432
    • 1991-11-06
    • Yasuhiro ShimadaYoshio Ishii
    • Yasuhiro ShimadaYoshio Ishii
    • G03C7/38
    • G03C7/383
    • A silver halide color photographic material is disclosed, which comprises a support thereon having at least one red-sensitive silver halide emulsion layer, in which the red-sensitive silver halide emulsion layer contains at least one cyan coupler of the general formula (I): ##STR1## wherein R represents a substituent;EWG represents an electron-attracting substituent which does not substantially split off from the formula on reaction of the coupler with an oxidation product of an aromatic primary amine developing agent; EWG' represents an electron-attracting substituent having a Hammett's substituent constant .sigma..sub.p of 0.3 or more, other than a perfluoroalkyl group; andW represents a hydrogen atom or a releasable group which splits off on reaction of the coupler with an oxidation product of an aromatic primary amine developing agent.
    • 公开了一种卤化银彩色照相材料,其包含其上具有至少一种感红卤化银乳剂层的载体,其中红敏卤化银乳剂层含有至少一种通式(I)的青色成色剂: (I)其中R表示取代基; EWG表示电子吸引取代基,其在偶联剂与芳族伯胺显影剂的氧化产物反应时基本上不脱离式; EWG'表示除了全氟烷基之外的哈米特取代基常数σp为0.3以上的吸电子取代基; W表示氢原子或在偶合剂与芳族伯胺显影剂的氧化产物反应时分解的可释放基团。
    • 9. 发明授权
    • Cyan coupler, cyan image forming method using the same and silver halide
color photographic material containing the same
    • 青色耦合器,使用相同的青色成像方法和含有相同的卤化银彩色照相材料
    • US5206130A
    • 1993-04-27
    • US788416
    • 1991-11-06
    • Yasuhiro ShimadaYoshio Ishii
    • Yasuhiro ShimadaYoshio Ishii
    • G03C7/30G03C7/38
    • G03C7/383
    • Disclosed is a silver halide color photographic material comprising a support thereon having at least one silver halide emulsion layer containing at least one cyan coupler of the general formula (I): ##STR1## where R represents a group capable of being an imidazo[1,2-b]pyrazole skeletal substituent;EWG represents an electron-attracting substituent which does not substantially split off from the formula on reaction of the coupler with an oxidation product of an aromatic primary amine developing agent;X represents a hydrogen atom or a releasable group which splits off from the formula on reaction of the coupler with an oxidation product of an aromatic primary amine developing agent; andn represents an integer of from 1 to 7,providing an excellent cyan dye and cyan image having satisfactory absorption characteristic and color fastness.
    • 公开了一种卤化银彩色照相材料,其上含有至少一个含有至少一个通式(I)的青色成色剂的卤化银乳剂层的载体:其中R表示可以是咪唑的基团 [1,2-b]吡唑骨架取代基; EWG表示电子吸引取代基,其在偶联剂与芳族伯胺显影剂的氧化产物反应时基本上不脱离式; X表示氢原子或可与该芳香族伯胺显影剂的氧化产物反应的分子式的可释放基团; n表示1〜7的整数,提供了具有令人满意的吸收特性和色牢度的优异的青色染料和青色图像。