发明授权
- 专利标题: Process for the production of photographic images utilizing a negative working diazo contact film
- 专利标题(中): 使用负性重氮接触膜制作摄影图像的方法
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申请号: US789236申请日: 1985-10-18
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公开(公告)号: US4729935A公开(公告)日: 1988-03-08
- 发明人: John E. Walls , Major S. Dhillon
- 申请人: John E. Walls , Major S. Dhillon
- 申请人地址: NJ Somerville
- 专利权人: Hoechst Celanese Corporation
- 当前专利权人: Hoechst Celanese Corporation
- 当前专利权人地址: NJ Somerville
- 主分类号: G03F1/54
- IPC分类号: G03F1/54 ; G03F7/016 ; G03F1/00 ; G03C1/78 ; G03F7/08
摘要:
A process for the production of photographic images utilizing a photographic element comprising a transparent support and a coating on the support comprising a diazonium composition having a light absorbency of about 45% or less, and a colorant composition, said coating having a light transmission of not more than about 0.1%.
公开/授权文献
- US5989013A Reverberatory screen for a radiant burner 公开/授权日:1999-11-23
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