Gallic acid as a laser direct thermal developer
US5840469A · kind A · utility
3Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1997 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | May 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thermographic element comprises a support having coated on at least one surface thereof a thermographic imaging system that contains a substantially light insensitive metal salt; a gallic acid reducing agent; and an infrared absorbing compound. These elements provide images that have high density in the ultraviolet spectral region when exposed to infrared radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.