Process for the development of color photographic light-sensitive material
US4418140A · kind A · utility
8Cited by
4References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 8, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Apr 8, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the development of color photographic light-sensitive material is described. The process comprises color developing an exposed light-sensitive material in the presence of a compound of the general formula: ##STR1## wherein M is a hydrogen atom, an alkali metal atom, NH.sub.4 or a protective group for the mercapto group which undergoes cleavage by the action of an alkali; R is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms; and R' is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms. This process prevents the formation of color development fog without seriously reducing sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.