Light sensitive emulsion and element containing a cyclic ether compound and process for using same
US4865965A · kind A · utility
8Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | May 12, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/346
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is directed to a light sensitive silver halide emulsion comprising a cyclic ether compound having an acid function and to an element containing such emulsion and to a process for using same. The compound comprises, in the cyclic ring, at least two atoms from the group consisting of sulfur and selenium, each of which atoms being separated from one another by a chain of at least two carbon atoms. Such compound acts as a solvent and as a growth modifying agent for silver halide grains. Also described is a process for modifying the growth of silver halide grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.