N,N'-DIARYLUREA DERIVATIVE, MANUFACTURING METHOD THEREOF, AND THERMOSENSITIVE RECORDING MATERIAL USING SAME
申请人:SANKO CO., LTD.
公开号:US20210340099A1
公开(公告)日:2021-11-04
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 A
1
is a hydrogen atom or an alkyl group).
本发明涉及一种由以下一般式(1)表示的N,N′-二脲衍生物以及其制备方法。此外,本发明涉及一种热敏记录材料,其中在基底纸上提供了一个热敏记录层,该热敏记录层包括在室温下无色或轻染色的碱性染料和一种与碱性染料接触加热后能够显色的显色剂,其中显色剂为以下一般式(1)表示的N,N′-二脲衍生物:(其中R2为烷基、芳基烷基或芳基;A1为氢原子或烷基)。