Photographic emulsions sensitized by the introduction of oligomers
US5024931A · kind A · utility
1Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1990 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jan 5, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic silver halide emulsion is disclosed in which the face centered cubic crystal lattice structure of the grains contain at adjacent cation sites metal ions chosen from group VIII, periods 5 and 6. The metal ions are placed at adjacent cation lattice sites by sensitizing the grains with oligomers each containing at least two of the group VIII metal ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.