Photographically useful compounds including at least one 1,3-sulfur-oxygen ring system
US5674986A · kind A · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/4033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.