EP 0549976 B1 19980204 - Bleachable antihalation system
Title (en)
Bleachable antihalation system
Title (de)
Bleichbares Lichthofschutzsystem
Title (fr)
Système antihalo blanchissable
Publication
Application
Priority
DE 4142956 A 19911224
Abstract (en)
[origin: US5312721A] The invention involves a bleachable antihalation system, particularly for use in thermally developable photographic recording materials. This antihalation system contains, besides an antihalation dye, a bleaching agent that forms sulfurous acid or sulfurous acid derivatives on treatment with heat or irradiation with actinic radiation.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01); G03C 1/83 (2006.01)
CPC (source: EP US)
G03C 1/49872 (2013.01 - EP US); G03C 1/83 (2013.01 - EP US); Y10S 430/156 (2013.01 - EP US); Y10S 430/165 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH FR GB IT LI NL
DOCDB simple family (publication)
EP 0549976 A1 19930707; EP 0549976 B1 19980204; DE 4142956 A1 19930701; DE 4142956 C2 19960814; US 5312721 A 19940517
DOCDB simple family (application)
EP 92121574 A 19921218; DE 4142956 A 19911224; US 99510092 A 19921218