EP 0002763 A3 19790725 - PHOTOGRAPHIC MATERIAL WITH STABILISERS AND PROCESS FOR FORMING PHOTOGRAPHIC IMAGES
Title (en)
PHOTOGRAPHIC MATERIAL WITH STABILISERS AND PROCESS FOR FORMING PHOTOGRAPHIC IMAGES
Publication
Application
Priority
DE 2758720 A 19771229
Abstract (en)
[origin: US4282313A] Thiocarbohydrazide derivatives act as stabilizers when processing photographic materials in the conventional black and white developers of the type used as first developer in color reversal processes. Furthermore, they can promote the development of color in the second developer in color reversal processes in such a way that a second exposure or fogging baths may be dispensed.
IPC 1-7
IPC 8 full level
G03C 1/34 (2006.01); G03C 5/50 (2006.01); C07D 295/22 (2006.01)
CPC (source: EP US)
G03C 1/346 (2013.01 - EP US); G03C 5/50 (2013.01 - EP US)
Citation (search report)
- DE 1622259 A1 19701029 - AGFA GEVAERT AG
- DE 1547694 A1 19700219 - EASTMAN KODAK CO
- FR 1556514 A 19690207
- US 3437665 A 19690408 - MAGGIULLI CATALDO A, et al
- FR 1393033 A 19650319 - AGFA AG
- GB 1237192 A 19710630 - AGFA GEVAERT NV [BE]
- GB 1067066 A 19670503 - AGFA AG
- BE 866436 A 19781027 - AGFA GEVAERT NV
- FR 2389161 A1 19781124 - AGFA GEVAERT AG [DE]
- DE 2719371 A1 19781102 - AGFA GEVAERT AG
- FR 2022388 A1 19700731 - MITSUBISHI PAPER MILLS LTD
- FR 1492132 A 19670818 - EASTMAN KODAK CO
- DE 973160 C 19591210 - ILFORD LTD
- US 3600178 A 19710817 - WILLEMS JOZEF FRANS, et al
- DE 1183371 B 19641210 - AGFA AG
- FR 1497205 A 19671006 - EASTMAN KODAK CO
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0002763 A2 19790711; EP 0002763 A3 19790725; EP 0002763 B1 19820203; CA 1138245 A 19821228; DE 2758720 A1 19790719; DE 2861613 D1 19820311; JP S5497418 A 19790801; US 4282313 A 19810804
DOCDB simple family (application)
EP 78101736 A 19781216; CA 318676 A 19781227; DE 2758720 A 19771229; DE 2861613 T 19781216; JP 16027478 A 19781227; US 97144578 A 19781220