EP 0136582 A2 19850410 - Developer compositions for silver halide photographic materials.
Title (en)
Developer compositions for silver halide photographic materials.
Title (de)
Entwicklerzusammensetzungen für photographische Silberhalogenidmaterialien.
Title (fr)
Compositions de développement pour matériaux photographiques à l'halogénure d'argent.
Publication
Application
Priority
IT 6521383 A 19830920
Abstract (en)
Developer compositions for silver halide photographic materials having an improved resistance to air oxidation, even if in the presence of metal ion traces, comprise the following principal constituents: a) hydroquinone or a substituted hydroquinone; b) an auxiliary superadditive developing agent; c) an alkali metal sulfite; d) an organic antifoggant agent; e) inorganic alkali agents; f) an alkanolamine; and g) a sequestering agent selected in the group of diethylenetetraminepentacetic acid, 1,3-diamino-2-propanoltetracetic acid and 1-hydroxyethylidene-1,1-diphosphonic acid.
IPC 1-7
IPC 8 full level
G03C 5/305 (2006.01)
CPC (source: EP)
G03C 5/3053 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0136582 A2 19850410; EP 0136582 A3 19870923; EP 0136582 B1 19890719; AR 244894 A1 19931130; CA 1264976 A 19900130; DE 3479063 D1 19890824; IT 1175017 B 19870701; IT 8365213 A0 19830920
DOCDB simple family (application)
EP 84110559 A 19840905; AR 29800884 A 19840919; CA 463575 A 19840919; DE 3479063 T 19840905; IT 6521383 A 19830920