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公开(公告)号：EP0603964A2
公开(公告)日：1994-06-29
申请号：EP93203590.0
申请日：1993-12-20
发明人： Kapp, Daniel Lawrence, c/o EASTMAN KODAK COMPANY , Ross, Robert John, c/o EASTMAN KODAK COMPANY , Singer, Stephen Paul, c/o EASTMAN KODAK COMPANY , Clark, Bernard A., c/o EASTMAN KODAK COMPANY
CPC分类号： C09B29/366 , G03C7/3335
摘要： The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:
(1) a parent group containing a -1-phenyl-3-anilinopyrazolin-5-one having electron-withdrawing substituents on the phenyl and anilino rings of a type and number sufficient to provide a combined Hammett sigma(para) value for such substituents of at least 1.4;
(2) a coupling-off group at the 4 position of the pyrazolone of the parent group comprising an arylazo group containing on the aryl ring the following:
(A) a substituent para to the azo functionality selected from hydroxyl, alkoxy, carbonamido, and sulfonamido, each unsubstituted or substituted with nonaromatic groups, and
(B) "n" additional substituents selected from alkyl, alkoxy, carbonamido, and sulfonamido, unsubstituted or substituted with nonaromatic groups, where "n" is 0 to 4;
wherein one of the substituents (A) or (B) contains an alkyl group of at least 8 carbon atoms, unsubstituted or substituted with nonaromatic substituents, and said substituent contains at least 70% of the saturated carbon atoms in all of the substituents (A) and (B) provided that where the substituent (A) forms a ring with a substituent (B) the entire ring will be counted as R⁴ for purposes of satisfying the 70% requirement.摘要翻译： 本发明提供了一种照相元件，它包含载体，该载体上带有光敏照相卤化银层，该光敏照相卤化银层与其相结合的掩蔽成色剂包括：（1）含有具有吸电子基团的1-苯基-3-苯胺基吡唑啉-5-酮的母体基团 苯基和苯胺基环上的取代基，其类型和数量足以为这种取代基提供至少1.4的组合哈米特西格玛（对位）值; （2）包含在芳环上含有芳基偶氮基团的母体基团的吡唑啉酮的4位上的偶联基团：（A）选自羟基，烷氧基，碳酰氨基和 （B）选自烷基，烷氧基，碳酰氨基和亚磺酰氨基的“n”个附加取代基，其未取代或被非芳族基团取代，其中“n”为0至4; 其中取代基（A）或（B）中的一个含有至少8个碳原子的未取代或被非芳族取代基取代的烷基，并且所述取代基在所有取代基中含有至少70％的饱和碳原子（A ）和（B）条款规定，当取代基（A）与取代基（B）形成环时，为了满足70％的要求，整个环将计算为R 4。
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公开(公告)号：EP0603964A3
公开(公告)日：1995-04-19
申请号：EP93203590.0
申请日：1993-12-20
发明人： Kapp, Daniel Lawrence, c/o EASTMAN KODAK COMPANY , Ross, Robert John, c/o EASTMAN KODAK COMPANY , Singer, Stephen Paul, c/o EASTMAN KODAK COMPANY , Clark, Bernard A., c/o EASTMAN KODAK COMPANY
CPC分类号： C09B29/366 , G03C7/3335
摘要： The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:
(1) a parent group containing a -1-phenyl-3-anilinopyrazolin-5-one having electron-withdrawing substituents on the phenyl and anilino rings of a type and number sufficient to provide a combined Hammett sigma(para) value for such substituents of at least 1.4; (2) a coupling-off group at the 4 position of the pyrazolone of the parent group comprising an arylazo group containing on the aryl ring the following:
(A) a substituent para to the azo functionality selected from hydroxyl, alkoxy, carbonamido, and sulfonamido, each unsubstituted or substituted with nonaromatic groups, and (B) "n" additional substituents selected from alkyl, alkoxy, carbonamido, and sulfonamido, unsubstituted or substituted with nonaromatic groups, where "n" is 0 to 4; wherein one of the substituents (A) or (B) contains an alkyl group of at least 8 carbon atoms, unsubstituted or substituted with nonaromatic substituents, and said substituent contains at least 70% of the saturated carbon atoms in all of the substituents (A) and (B) provided that where the substituent (A) forms a ring with a substituent (B) the entire ring will be counted as R⁴ for purposes of satisfying the 70% requirement.-
公开(公告)号：EP0603964B1
公开(公告)日：1999-03-10
申请号：EP93203590.0
申请日：1993-12-20
发明人： Kapp, Daniel Lawrence, c/o EASTMAN KODAK COMPANY , Ross, Robert John, c/o EASTMAN KODAK COMPANY , Singer, Stephen Paul, c/o EASTMAN KODAK COMPANY , Clark, Bernard A., c/o EASTMAN KODAK COMPANY
IPC分类号： G03C7/333
CPC分类号： C09B29/366 , G03C7/3335
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