发明授权
US5278024A Positive imaging diffusion-transfer dry silver system using formazan dye
失效
使用甲an染料的正成像扩散转移干银系统
- 专利标题： Positive imaging diffusion-transfer dry silver system using formazan dye
- 专利标题（中）： 使用甲an染料的正成像扩散转移干银系统
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申请号： US998445申请日： 1992-12-30
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公开(公告)号： US5278024A公开(公告)日： 1994-01-11
- 发明人: Richard C. Cotner , David C. Weigel , Kumars Sakizadeh
- 申请人： Richard C. Cotner , David C. Weigel , Kumars Sakizadeh
- 申请人地址： MN Saint Paul
- 专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人地址： MN Saint Paul
- 主分类号： G03C1/498
- IPC分类号： G03C1/498 ; G03C8/40 ; G03C5/54
摘要：
A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.