发明授权
- 专利标题： Photochemical generation of dyes
- 专利标题（中）： 光化学发生染料
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申请号： US147646申请日： 1993-11-04
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公开(公告)号： US5389498A公开(公告)日： 1995-02-14
- 发明人: Richard J. Ellis
- 申请人： Richard J. Ellis
- 申请人地址： MN St. 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 St. Paul
- 优先权： GBX9224004 19921116
- 主分类号： G03C1/675
- IPC分类号： G03C1/675 ; G03C1/72 ; G03C1/83 ; G03C5/16 ; G11B5/735 ; G11B5/82 ; G11B7/244 ; G11B7/247 ; G11B7/249 ; G11B13/04 ; G03C1/73
摘要：
A photosensitive element for the production of near infrared absorbing images having a photosensitive medium comprising a trialkyl orthoester, a photochemical source of a strong acid and a compound of the formula (I): ##STR1## wherein: n is 0 or 1,R.sup.1 and R.sup.2 are independently members selected from the group consisting of hydrogen and alkyl groups of up to 5 carbon atoms andAr.sub.1 and Ar.sub.2 are independently members selected from the group consisting of aryl groups bearing an electron-donating substituent in the 4-position.