SILVE HALIDE PHOTOGRAPHIC MATERIAL CONTAINING ORGANIC COMPOUND HAVING A COVALENT NITROGEN-HALOGEN BOND AS SENSITIZER

摘要

Photographic light sensitive materials contg. a compd. (I ; X = halogen atom, A = R-CO_ R-SO -, H or alkali metal, B = R'-CO -, R'-SO- or R', R, R' = nonmetal atomic group, most effective when R, R' formed a heteroring with nitrogen-halogen covalent bond in molecule were obtained. These materials are useful as photographic fog inhibitors for black and white or color photography.