Light-sensitive color photographic material

Details Light-sensitive color photographic material Light-sensitive color photographic material

1978-06-23

1979-10-16

Shilling, Richard L.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 663, 96 95, 96100R, G03C 148, G03C 530, G03C 140, G03C 106

Patent

active

041712234

ABSTRACT:
Non-diffusible silver halide development inhibitor releasing thioether compounds in which a color development does not give rise to a substantial formation of permanent dyes are 1,2,5'-.DELTA..sup.2 -thiadiazoline-1,1-dioxide derivatives of the following formula or its tautomeric (.DELTA..sup.3) form: ##STR1## in which X represents an aliphatic, aromatic or heterocyclic group such that when it is split off together with the sulphur atom of the thioether bridge, it forms a diffusible mercapto compound capable of inhibiting the development of the silver halide;

REFERENCES:
patent: 3620745 (1971-11-01), Seymour
patent: 3841880 (1974-10-01), Kertel

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