发明公开
EP1398664A2 Photographic recording material for accelerated development
审中-公开
摄影师Aufzeichnungsmaterial zur beschleunigten Entwicklung
- 专利标题： Photographic recording material for accelerated development
- 专利标题（中）： 摄影师Aufzeichnungsmaterial zur beschleunigten Entwicklung
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申请号： EP03077794.0申请日： 2003-09-04
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公开(公告)号： EP1398664A2公开(公告)日： 2004-03-17
- 发明人: Keevert, John E., Jr., c/o Eastman Kodak Company , Singer, Stephen P., c/o Eastman Kodak Company , Reed, Kenneth J., c/o Eastman Kodak Company , Lushington, Kenneth J., c/o Eastman Kodak Company , Brick, Mary C., c/o Eastman Kodak Company , Friday, James A., c/o Eastman Kodak Company
- 申请人： EASTMAN KODAK COMPANY
- 申请人地址： 343 State Street Rochester, New York 14650 US
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 当前专利权人地址： 343 State Street Rochester, New York 14650 US
- 代理机构： Weber, Etienne Nicolas
- 优先权： US244270 20020916
- 主分类号： G03C7/30
- IPC分类号： G03C7/30
摘要：
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): CAR 1 -(L) n -ETA wherein:
CAR 1 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 CAR 1 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): CAR 2 -(SAM)-NX 1 -NX 2 X 3 wherein:
CAR 2 is a carrier moiety which is capable of releasing -(SAM)-NX 1 -NX 2 X 3 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
-NX 1 -NX 2 X 3 is a hydrazine group wherein X 1 , X 2 and X 3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl or sulfonyl groups with the proviso that at least one of X 1 , X 2 and X 3 is hydrogen.
CAR 1 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 CAR 1 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): CAR 2 -(SAM)-NX 1 -NX 2 X 3 wherein:
CAR 2 is a carrier moiety which is capable of releasing -(SAM)-NX 1 -NX 2 X 3 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
-NX 1 -NX 2 X 3 is a hydrazine group wherein X 1 , X 2 and X 3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl or sulfonyl groups with the proviso that at least one of X 1 , X 2 and X 3 is hydrogen.
公开/授权文献
- EP1398664A3 Photographic recording material for accelerated development 公开/授权日：2005-02-09
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