Method for preparing silver halide photographic tabular grains emulsions
US6638703B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jan 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/44
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a method for preparing photographic silver halide tabular grains emulsions. The method of the invention comprises a first single nucleation step wherein stable tabular seeds of silver halide are formed, and a second step wherein different batches of seeds obtained in the first step are grown to yield identical or different emulsions. This combination of steps represent a robust process for preparing tabular grain emulsions at different scales.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.