Pyrrolo[1,2-a]pyrimidine compound and heat-sensitive recording material using the same
US6329116A · kind A · utility
2Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An object of the present invention is to provide a pyrrolo[1,2-a]pyrimidine compound that is useful as a coupler providing excellent hue of a cyan system and sufficient density of formed color. The pyrrolo[1,2-a]pyrimidine compound of the present invention for achieving the object is represented by one of following general formulae (1), (2) and (3). ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.