Photothermographic material
US5869229A · kind A · utility
6Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/33
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photothermographic material contains a compound of formula (I): ##STR1## wherein X represents --N.dbd., --N(R)--, --O--or --S--wherein R represents hydrogen, hydroxy, aliphatic hydrocarbon, aryl or heterocyclic group, Z represents a valence bond or a group of non-metallic atoms necessary to form a 5 to 7-membered ring with X, and each of Q.sub.1 and Q.sub.2 represents a group of non-metallic atoms necessary to form an aromatic hydrocarbon ring or aromatic heterocycle fused to the ring completed by Z. The material has high sensitivity in the infrared region and a minimal sensitivity change with varying storage conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.