发明名称 |
THERMAL IMAGING METHOD AND ELEMENT AND THERMOSENSITIVE COMPOUND |
摘要 |
A thermal imaging method is provided which comprises heating imagewise a di- or triarylmethane compound possessing within its di- or triarylmethane structure an aryl group substituted in the ortho position to the meso carbon atom with a moiety ring-closed on the meso carbon atom directly through a nitrogen atom, which nitrogen atom is also bound to a group with a masked acyl substituent that undergoes fragmentation upon heating to liberate the acyl group for effecting intramolecular acylation of said nitrogen atom to form a new group in the ortho position whereby the di- or triarylmethane compound is rendered colored in an imagewise pattern corresponding to said imagewise heating. |
申请公布号 |
DE3666929(D1) |
申请公布日期 |
1989.12.21 |
申请号 |
DE19863666929 |
申请日期 |
1986.05.23 |
申请人 |
POLAROID CORPORATION |
发明人 |
BORROR, ALAN L.;ELLIS, ERNEST W. |
分类号 |
B41M5/28;B41M5/30;B41M5/323;B41M5/36;B41M5/46;C07D417/14;C07D491/00;C07D491/10;C07D491/20;C07D493/00;C07D493/10;C07D513/10;C09B11/00;C09B11/26;C09B11/28;(IPC1-7):B41M5/26;C07D275/06 |
主分类号 |
B41M5/28 |
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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