Uracil derivatives of thio- and selenourea compounds
US4526965A · kind A · utility
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2References
6Claims
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Assignee
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Key dates
| Filing date | Sep 16, 1983 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Sep 16, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Novel compounds which release thio- or selenourea moieties or derivatives thereof upon contact with aqueous alkaline compositions and are therefore useful in photographic applications. The compounds include, in addition to the thio- or selenourea moiety, a uracil blocking moiety and an anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.