Thermosensitive recording material
US5256618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Oct 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C323/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A thermosensitive recording material capable of recording thereon colored images having high resistances to oily substances, plasticizers, moisture, and heat and an excellent storage persistency over a long time, comprises a thermosensitive colored image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color developing agent, and a binder, the color developing agent comprising at least one compound of the formula (I): ##STR1## wherein X is an O or S atom, R is an unsubstituted aromatic group or an aromatic group substituted by a lower alkyl or halogen atom; A represents a multivalent group, and n is an integer of 2 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.