EP 0377181 A3 19910612 - COLOUR-PHOTOGRAPHIC MATERIAL
Title (en)
COLOUR-PHOTOGRAPHIC MATERIAL
Publication
Application
Priority
DE 3900115 A 19890104
Abstract (en)
[origin: EP0377181A2] A photosensitive, colour-photographic silver halide material with at least one photosensitive silver halide layer associated with a conventional diffusion-resistant colour coupler and, if appropriate, further photosensitive and non-photosensitive layers, wherein the at least one photosensitive silver halide layer contains, in a concentration from 10<-><3> to 10 mmol/mol of silver halide, a compound of the formula A-Z-K (I> adsorbed on the silver halide grain, in which A is a grain-active adhesion group, Z is a divalent bridge member and K is a group which reacts with the developer oxidation product to give a coloured or colourless product, which compound adheres to the silver halide grain and reacts with the developer oxidation product at an effective reaction rate constant keff >/= 10<3>, shows an improved sensitivity/graininess ratio.
IPC 1-7
IPC 8 full level
G03C 1/34 (2006.01); G03C 7/26 (2006.01); G03C 7/305 (2006.01); G03C 7/32 (2006.01); G03C 7/392 (2006.01)
CPC (source: EP US)
G03C 7/305 (2013.01 - EP US); G03C 7/3212 (2013.01 - EP US)
Citation (search report)
- [X] DE 3429545 A1 19850228 - FUJI PHOTO FILM CO LTD [JP]
- [A] EP 0154293 A2 19850911 - FUJI PHOTO FILM CO LTD [JP]
- [A] GB 2032914 A 19800514 - CIBA GEIGY AG
- [A] PATENT ABSTRACTS OF JAPAN vol. 9, no. 33 (P-334)(1756) 13 Februar 1985, & JP-A-59 177555 (FUJI SHASHIN FILM) 08 Oktober 1984,
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0377181 A2 19900711; EP 0377181 A3 19910612; JP 2839166 B2 19981216; JP H02228651 A 19900911; US 5158864 A 19921027
DOCDB simple family (application)
EP 89123723 A 19891222; JP 34501389 A 19891229; US 58627690 A 19900921