N,N′-diarylurea derivative, manufacturing method thereof, and thermosensitive recording material using same
US11945769B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3275
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.