Photographic recording materials with enhanced latent image stability
US4948721A · kind A · utility
1Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Jul 26, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Latent image stability is enhanced in photographic recording materials using N-alkyl- or N-alkenylbenzothiazolium or -benzoselenazolium salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.