EP 0557859 B1 19971105 - Heat developable photographic material
Title (en)
Heat developable photographic material
Title (de)
Durch Wärmebehandlung entwickelbares photographisches Material
Title (fr)
Produit photographique développable à la chaleur
Publication
Application
Priority
DE 4205450 A 19920222
Abstract (en)
[origin: EP0557859A1] 2.1 Photographic images which were produced by means of so-called dry silver material are not sufficiently stable on storage. 2.2 Hexamethylenetetramine and related compounds are simple, cheap and effective stabilisers for the developed image, if they are added to the light-sensitive layer or to an auxiliary layer. 2.3 Production of photographic images, for example by contact printing, projection and camera exposure.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01)
CPC (source: EP US)
G03C 1/49845 (2013.01 - EP US)
Citation (examination)
US 4847188 A 19890711 - KOMAMURA TAWARA [JP], et al
Designated contracting state (EPC)
CH FR GB LI NL
DOCDB simple family (publication)
EP 0557859 A1 19930901; EP 0557859 B1 19971105; DE 4205450 A1 19930826; DE 4205450 C2 19960418; JP 2564747 B2 19961218; JP H06130544 A 19940513; US 5459028 A 19951017
DOCDB simple family (application)
EP 93102387 A 19930216; DE 4205450 A 19920222; JP 3167593 A 19930222; US 27358094 A 19940711