Photographic elements and film units containing imidomethyl blocked photographic reagents
US4350752A · kind A · utility
28Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1980 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Dec 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Imidomethyl blocked photographic reagents are useful in photographic elements, film units and processes. The blocked photographic reagents have the structure: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete a 5- or 6-membered ring or ring system; R represents hydrogen, alkyl or 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; and PA1 PR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the imidomethyl blocking group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.