发明授权
US5338866A Crystal modification of
2-(3-methylanilino)-3-methyl-6-diethylaminofluoran, process for the
preparation thereof, and recording materials containing said crystal
modification
失效
2-（3-甲基苯胺基）-3-甲基-6-二乙基氨基荧烷的晶体改性，其制备方法和含有所述晶体改性的记录材料
- 专利标题： Crystal modification of 2-(3-methylanilino)-3-methyl-6-diethylaminofluoran, process for the preparation thereof, and recording materials containing said crystal modification
- 专利标题（中）： 2-（3-甲基苯胺基）-3-甲基-6-二乙基氨基荧烷的晶体改性，其制备方法和含有所述晶体改性的记录材料
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申请号： US989566申请日： 1992-12-11
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公开(公告)号： US5338866A公开(公告)日： 1994-08-16
- 发明人: Yojiro Kumagae , Shigeo Fujita , Mansuke Matsumoto , Sayuri Wada , Shuuichi Hashimoto
- 申请人： Yojiro Kumagae , Shigeo Fujita , Mansuke Matsumoto , Sayuri Wada , Shuuichi Hashimoto
- 申请人地址： JPX Osaka
- 专利权人： Yamamoto Chemicals, Inc.
- 当前专利权人： Yamamoto Chemicals, Inc.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX3-329119 19911212; JPX4-305537 19921116
- 主分类号： B41M5/145
- IPC分类号： B41M5/145 ; B41M5/327 ; C07D493/10 ; C09B11/24 ; C09B67/48 ; C07D311/88
摘要：
The improved .beta.-type crystal modification of 2-(3-methylanilino)-3-methyl-6-diethylaminofluoran has high solubility in inner-phase solvents. The compound is very useful as a color former for pressure-sensitive recording materials and thermal recording materials. Recording materials that use this compound as color former exhibit good performance in various characteristics such as whiteness of the background, its storage stability, color rendition, sensitivity for color formation and color fastness of image.
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