发明名称 |
Blocked photographically useful compounds for use with peroxide-containing processes |
摘要 |
A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.
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申请公布号 |
US5538834(A) |
申请公布日期 |
1996.07.23 |
申请号 |
US19940342983 |
申请日期 |
1994.11.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
BUCHANAN, J. MICHAEL;MOOBERRY, JARED B.;TEXTER, JOHN |
分类号 |
G03C1/43;C07C303/36;C07C303/38;C07C311/05;G03C7/30;G03C7/305;G03C7/407;(IPC1-7):G03C7/305 |
主分类号 |
G03C1/43 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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