EP 0479029 B1 19971217 - Silver halide photographic element and process for preparing a dispersion of discrete particles of water insoluble polymeric matting agent in aqueous compositions
Title (en)
Silver halide photographic element and process for preparing a dispersion of discrete particles of water insoluble polymeric matting agent in aqueous compositions
Title (de)
Photographischer Silberhalogenidelement und Verfahren zur Herstellung einer Dispersion diskreter Teilchen eines wasserunlöslichen polymeren Mattierungsmittels in wässrigen Zusammensetzungen
Title (fr)
Elément photographique à l'halogénure d'argent et procédé pour la préparation d'une dispersion des particules discrètes d'un agent polymérique insoluble dans l'eau dans des compositions aqueuses
Publication
Application
Priority
IT 2164890 A 19901005
Abstract (en)
[origin: EP0479029A1] A process for providing a matt surface on a photographic element, which element comprises a support base, one or more light sensitive silver halide emulsion layers coated on said support base and at least one outer non-light sensitive protective layer, said process comprising: (1) providing a dispersion of a polymeric matting agent in water, (2) mixing the dispersion of step (1) in a hydrophilic colloid aqueous solution, (3) including the resulting hydrophilic colloid dispersion in said outer non-light sensitive protective layer, wherein said mixing step (2) is performed in presence of a stilbene polysulfonate compound. A silver halide photographic element comprising a support base, one or more light-sensitive silver halide emulsion layers and at least one outer non-light-sensitive gelatin protective layer comprising discrete particles of a polymeric matting agent and a stilbene polysulfonate compound.
IPC 1-7
IPC 8 full level
G03C 1/32 (2006.01); B01J 13/00 (2006.01); G03C 1/74 (2006.01); G03C 1/76 (2006.01); G03C 1/815 (2006.01); G03C 1/95 (2006.01); G03C 11/06 (2006.01)
CPC (source: EP)
G03C 1/95 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0479029 A1 19920408; EP 0479029 B1 19971217; DE 69128448 D1 19980129; DE 69128448 T2 19980716; IT 1253002 B 19950710; IT 9021648 A0 19901005; IT 9021648 A1 19920405; JP 3054246 B2 20000619; JP H04248549 A 19920904
DOCDB simple family (application)
EP 91115719 A 19910917; DE 69128448 T 19910917; IT 2164890 A 19901005; JP 25641491 A 19911003