Heat development duplicating material comprising ascorbic acid
US5945247A · kind A · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Apr 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/61
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heat development type duplicating material having a recording layer which is formed on a support. The recording layer comprises a photosensitive diazo compound and a coupler that reacts with the diazo compound to develop color. Furthermore, the duplicating material contains an ascorbic acid derivative. The heat development type duplicating material generates little stain in background areas, exhibits satisfactory storage stability, and provides a high image density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.