Photographic elements containing 2,4-disulfonamidophenol scavengers for oxidized developing agents
US4447523A · kind A · utility
19Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1983 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39216
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Useful scavengers for oxidized developing agents in photographic elements are 2,4-disulfonamidophenols, or alkali labile precursors of such phenols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.