EP 0176845 A3 19880921 - PHOTOGRAPHIC RECORDING MATERIAL
Title (en)
PHOTOGRAPHIC RECORDING MATERIAL
Publication
Application
Priority
DE 3435443 A 19840927
Abstract (en)
[origin: US4656125A] Compounds having a structure corresponding to the following formula. <IMAGE> wherein G represents OH or a precursor group which is unstable to alkali, X represents a substituent which cannot be split off, Y represents -O-alkyl, -SO2-NR1-R2, -CO-NR1-R2, -NR1-CO-R3, or -NR1-SO2-R3, R1 represents H or alkyl, R2 represents alkyl, aralkyl or aryl, R3 represents alkoxy, aroxy, alkylamino, arylamino or R2, Z represents H, alkyl, alkoxy, halogen or acylamino and n represents 1 or 2 are suitable for improving the stability to light of image dyes produced from photographic couplers, in particular yellow couplers.
IPC 1-7
IPC 8 full level
G03C 7/26 (2006.01); G03C 7/36 (2006.01); G03C 7/392 (2006.01)
CPC (source: EP US)
G03C 7/39216 (2013.01 - EP US)
Citation (search report)
- [X] DE 2146668 A1 19720323
- [A] US 4366226 A 19821228 - HAMAOKA TSUTOMU, et al
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0176845 A2 19860409; EP 0176845 A3 19880921; EP 0176845 B1 19910206; DE 3435443 A1 19860403; DE 3581686 D1 19910314; JP H0713737 B2 19950215; JP S6186750 A 19860502; US 4656125 A 19870407
DOCDB simple family (application)
EP 85111669 A 19850916; DE 3435443 A 19840927; DE 3581686 T 19850916; JP 21437885 A 19850927; US 77667785 A 19850916