发明名称 |
Photothermographic element with pre-formed iridium-doped silver halide grains |
摘要 |
A negative-acting photothermographic element comprising a support bearing at least one heat-developable, photosensitive, image-forming photothermographic emulsion layer comprising: (a) an iridium doped, preferably iridium-doped core-shell, photosensitive silver halide grains, generally containing a total silver iodide content of less than 10 mole %, the shell having a second silver iodide content lower than the silver iodide content of the core; (b) a non-photosensitive, reducible source of silver; (c) a reducing agent for the non-photosensitive, reducible source of silver; (d) a binder; and (e) optionally at least one compound selected from the group consisting of: a halogen molecule; an organic haloamide; and hydrobromic acid salts of nitrogen-containing heterocyclic compounds which are further associated with a pair of bromine atoms. A process of forming photothermographic emulsions from iridium-doped silver halide grains by forming silver soaps in the presence of those grains is also described.
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申请公布号 |
US5563030(A) |
申请公布日期 |
1996.10.08 |
申请号 |
US19950418252 |
申请日期 |
1995.04.06 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
ZOU, CHAOFENG;PHILIP, JAMES B.;SHOR, STEVEN M.;SKINNER, MARK C.;ZHOU, PU |
分类号 |
G03C1/26;G03C1/34;G03C1/498;(IPC1-7):G03C1/498 |
主分类号 |
G03C1/26 |
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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