Stabilized tabular silver halide grain emulsions
US4888273A · kind A · utility
7Cited by
22References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Feb 26, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/346
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Silver halide emulsions containing tabular silver halide grains are stabilized by the employment of a compound of the formula ##STR1## where R is --SO.sub.2 NH.sub.2, In a preferred embodiment an azaindene is also employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.