- 专利标题： N,N′-diarylurea derivative, manufacturing method thereof, and thermosensitive recording material using same
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申请号： US16641811申请日： 2018-08-10
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公开(公告)号： US11945769B2公开(公告)日： 2024-04-02
- 发明人: Ryoichi Kinishi , Yoshimi Ishibashi
- 申请人： SANKO CO., LTD.
- 申请人地址： JP Kurume
- 专利权人： SANKO CO., LTD.
- 当前专利权人： SANKO CO., LTD.
- 当前专利权人地址： JP Fukuoka
- 代理机构： McCarter & English, LLP
- 代理商 David R. Burns; Wei Song
- 优先权： JP 17167444 2017.08.31
- 国际申请： PCT/JP2018/030081 2018.08.10
- 国际公布： WO2019/044462A 2019.03.07
- 进入国家日期： 2020-02-25
- 主分类号： B41M5/20
- IPC分类号： B41M5/20 ; B41M5/24 ; B41M5/323 ; C07C303/28 ; C07C303/30 ; C07C309/76
摘要：
The present invention relates to an N,N′-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N′-diurea derivative represented by the following general formula (1):
(wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).
(wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).
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