2,5-BIS (SECONDARY AMINO) OXA-AND THIADIAZOLE PHOTOGRAPHIC DEVELOPING AGENTS

摘要

2,5-BIS(SECONDARY AMINO) OXA- ANDTHIADIAZOLE PHOTOGRAPHIC DEVELOPING AGENTSAbstract of the DisclosureOxa- and thiadiazole compounds of the formula:wherein R-NH- and -NH-R, are secondary amino groups and X issulfur or oxygen are employed as photographic developingagents for exposed radiation-sensitive silver salts. Thedeveloping agents can be employed as components in developercompositions, as incorporated developing agents, and asdeveloping agents in diffusion transfer processes.-1-