Silver halide photographic emulsion
US4168977A · kind A · utility
32Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1977 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Aug 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/15
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A negative image silver halide photographic emulsion comprising substantially surface latent image-type silver chlorobromide or silver chlorobromoiodide grains with an iodide content of up to about 7 mol%, wherein the mean grain size of the silver halide grains is not greater than about 0.7.mu., a binder is present in an amount of not more than about 250 g per mol of silver halide, and at least one compound represented by the following general formula (I): EQU r.sup.1 nhnhcho (i) wherein R.sup.1 represents an aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.