发明名称 |
Photographic recording material for accelerated development |
摘要 |
This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers wherein at least one emulsion layer contains an electron transfer agent releasing compound represented by the formula: CAR-(L)n-ETAwherein: CAR 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 bonded to L or CAR through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring; and at least one soluble mercaptan releasing compound.
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申请公布号 |
US6114103(A) |
申请公布日期 |
2000.09.05 |
申请号 |
US19980224230 |
申请日期 |
1998.12.30 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
FRIDAY, JAMES A.;LUNT, SHARON R.;SUTTON, SCOTT C. |
分类号 |
G03C7/305;(IPC1-7):G03C7/305 |
主分类号 |
G03C7/305 |
代理机构 |
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地址 |
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