Method and material for the formation of silver halide color photographic image
US4444872A · kind A · utility
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6References
6Claims
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Key dates
| Filing date | Aug 10, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Aug 10, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/346
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for forming a silver halide color photographic image comprising forming a dye image in the presence of a phenol cyan coupler. The phenol cyan coupler has the following formula: ##STR1## wherein R is an alkyl, an aryl or a heterocyclic group; X is selected from the group consisting of an alkyl, acyloxy, acylamino, succinimide, and sulfoneamide moiety; Z is a hydrogen atom or a group capable of eliminating itself from the coupler during the coupling reaction with the oxidized product of a color developing agent; and n is an integer from 1 to 3, and when n is 2 or 3, X may be the same or different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.