Image formation in color reversal materials using strong inhibitors
US5411839A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Jan 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved color reversal element comprising: a support having thereon at least two light-sensitive silver halide emulsion layers and a compound capable of releasing a development inhibitor, the element comprising a compound having the structural formula EQU CAR--(TIME).sub.n --INH wherein: PA1 CAR is a carrier moiety from which --(TIME).sub.n --INH is released during color development; PA1 TIME is a timing group; INH is comprised of a development inhibitor moiety selected from the group consisting of oxazole, thiazole, diazole, oxathiazole, triazole, thiatriazole, benzotriazole, tetrazole, benzimidazole, indazole, isoindazole, mercaptotriazole, mercaptothiadiazole, mercaptotetrazole, selenotetrazole, mercaptothiazole, selenobenzothiazole, mercaptobenzoxazole, selenobenzoxazole, mercaptobenzimidazole, mercaptobenzothiazole, selenobenzimidazole, benzodiazole, mercaptooxadiazole, or benzisodiazole, the INH havina an inhibitor strength greater than 1 (one), and PA1 n is 0, 1 or 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.