Ligands for metallizable dyes
US4559291A · kind A · utility
7Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1984 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Dec 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photographic assemblages are described employing metallizable redox dye-releasers and a ligand having a coordinating site which is: ##STR1## In a preferred embodiment, the ligand is an alpha amino carboxylic acid, a 2-pyridinecarboxylic acid, a 2-aminoalcohol, a 2-hydroxymethylpyridine, a 2-hydroxyacetic acid, a 1,2-diamine or a 2-hydroxypyridine-N-oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.