Photographic silver halide material comprising gold compound
US5220030A · kind A · utility
17Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | May 13, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/6518
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A photographic silver halide material is chemically sensitized with a soluble gold(I) compound of the formula: EQU AuL.sub.2.sup.+ X.sup.- EQU or EQU AuL(L.sup.1).sup.+ X.sup.- wherein L is a mesoionic compound; X is an anion; and L.sup.1 is Lewis donor ligand. The novel gold(I) compounds possess properties which are advantageous compared to the properties of previously known gold compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.