EP 0392092 B1 19940914 - Method of preparing light-sensitive silver halide emulsions.
Title (en)
Method of preparing light-sensitive silver halide emulsions.
Title (de)
Verfahren zur Herstellung von lichtempfindlichen Silberhalogenid Emulsionen.
Title (fr)
Méthode pour la préparation d'émulsions à l'halogénure d'argent photosensibles.
Publication
Application
Priority
EP 89200909 A 19890411
Abstract (en)
[origin: EP0392092A1] A method of preparing light-sensitive silver halide emulsions and photographic materials incorporating layers of such emulsions are described. This method comprises preparing a light-sensitive silver halide emulsion by precipitating silver halide in the presence of colloidal silicic acid serving as protective colloid and an onium compound.
IPC 1-7
IPC 8 full level
G03C 1/06 (2006.01); G03C 1/015 (2006.01); G03C 1/04 (2006.01); G03C 1/005 (2006.01)
CPC (source: EP)
G03C 1/04 (2013.01); G03C 1/0051 (2013.01)
Citation (examination)
US 3637391 A 19720125 - SALECK WILHELM, et al
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0392092 A1 19901017; EP 0392092 B1 19940914; DE 68918267 D1 19941020; DE 68918267 T2 19950302; JP 2835636 B2 19981214; JP H02293838 A 19901205
DOCDB simple family (application)
EP 89200909 A 19890411; DE 68918267 T 19890411; JP 9614790 A 19900410