Invention Grant
US5492803A Hydrazide redox-dye-releasing compounds for photothermographic elements
失效
用于光热敏成像元件的酰肼氧化还原 - 染料释放化合物
- Patent Title: Hydrazide redox-dye-releasing compounds for photothermographic elements
- Patent Title (中): 用于光热敏成像元件的酰肼氧化还原 - 染料释放化合物
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Application No.: US369916Application Date: 1995-01-06
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Publication No.: US5492803APublication Date: 1996-02-20
- Inventor: Kevin D. Landgrebe , Doreen C. Lynch , Sharon M. Simpson , Justine A. Mooney , Andrew W. Mott , Duncan M. A. Grieve , John H. A. Stibbard , Robert J. D. Nairne , Stephen S. C. Poon , David C. Bays
- Applicant: Kevin D. Landgrebe , Doreen C. Lynch , Sharon M. Simpson , Justine A. Mooney , Andrew W. Mott , Duncan M. A. Grieve , John H. A. Stibbard , Robert J. D. Nairne , Stephen S. C. Poon , David C. Bays
- Applicant Address: MN St. Paul
- Assignee: Minnesota Mining and Manufacturing Company
- Current Assignee: Minnesota Mining and Manufacturing Company
- Current Assignee Address: MN St. Paul
- Main IPC: G03C8/18
- IPC: G03C8/18 ; G03C1/498 ; G03C8/40
Abstract:
A photothermographic element comprising a support bearing at least one heat-developable, photosensitive, image-forming photothermographic emulsion layer comprising:(a) a photosensitive silver halide;(b) a non-photosensitive, reducible source of silver;(c) a reducing agent for the non-photosensitive reducible silver source; and(d) a binder;wherein the reducing agent is a hydrazide redox-dye-releasing compound of the general formulae: ##STR1## wherein: D represents the chromophore of a thermally mobile dye; X represents a single bond or a divalent linking group; R.sup.1 and R.sup.2 independently represent an organic group; and n.gtoreq.1.
Public/Granted literature
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