发明名称 |
Colorless carbazole dyes for recording materials |
摘要 |
Disclosed is a colorless dye for use in recording materials comprising a compound represented by the general formula: <IMAGE> Said recording materials are of the types which utilize a color developing reaction between an electron-donating colorless dye and an electron-accepting color developer, such as, carbonless pressure-sensitive recording materials, thermosensitive recording materials, etc.
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申请公布号 |
US4737587(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19860932944 |
申请日期 |
1986.11.20 |
申请人 |
MITSUBISHI PAPER MILLS, LTD. |
发明人 |
OKUMURA, FUMIO;TSUKAHARA, HIROKAZU;IKEDA, HARUHIKO |
分类号 |
B41M5/136;B41M5/323;C07D209/86;(IPC1-7):C07D209/86 |
主分类号 |
B41M5/136 |
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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