发明授权
US5231069A Fluoran compound, heat sensitive recording materials comprising fluoran
compound
失效
氟族化合物，包含荧烷化合物的热敏记录材料
- 专利标题： Fluoran compound, heat sensitive recording materials comprising fluoran compound
- 专利标题（中）： 氟族化合物，包含荧烷化合物的热敏记录材料
-
申请号： US985723申请日： 1992-12-04
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公开(公告)号： US5231069A公开(公告)日： 1993-07-27
- 发明人: Masakatsu Nakatsuka , Atsuo Otsuji , Kiyoharu Hasegawa , Masatoshi Takagi , Akihiro Yamaguchi
- 申请人： Masakatsu Nakatsuka , Atsuo Otsuji , Kiyoharu Hasegawa , Masatoshi Takagi , Akihiro Yamaguchi
- 申请人地址： JPX
- 专利权人： Mitsui Toatsu Chemicals Inc.
- 当前专利权人： Mitsui Toatsu Chemicals Inc.
- 当前专利权人地址： JPX
- 优先权： JPX1-197948 19890801
- 主分类号： B41M5/327
- IPC分类号： B41M5/327 ; C07D493/10
摘要：
Heat-sensitive recording paper which employs as a chromogenic compound a novel fluoran compound represented by the formula: ##STR1## and prepared reacting a benzoic acid derivative of the formula: ##STR2## with a diphenylamine derivative of the formula: ##STR3## wherein R is a lower alkyl group have excellent stability.
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