EP 0703493 B1 19970820 - Colour photographic silver halide material
Title (en)
Colour photographic silver halide material
Title (de)
Farbfotografisches Silberhalogenidmaterial
Title (fr)
Matériau photographique couleur à l'halogénure d'argent
Publication
Application
Priority
DE 4433637 A 19940921
Abstract (en)
[origin: EP0703493A1] Negative colour photographic Ag halide (AgX) material has a transparent film base with at least two blue-sensitive (BS), at least 2 green-sensitive (GS) and at least two red-sensitive (RS) AgX emulsion layers with yellow, magenta and cyan couplers resp. and a yellow filter layer. The layers with the same spectral sensitivity have different speeds and the yellow filter layer is nearer the film base than the BS emulsion layers and the GS and RS emulsion layers are nearer the base than the yellow filter layer. The novelty is that: (a) at least one of the fastest GS and fastest RS layers contains an effective amt. of a crown ether (I) of formula (IA), (IB) or (IC); and (b) these fastest layers contain Ag(Br,I) emulsions with 1-15 mol.% AgI. X1 = Gp. V or VI element; L1 = opt. substd. hydrocarbon gp. with at least 2 C in the main chain between two adjacent X1 atoms or X1 atom and the adjacent bridge top atom L2; L2 = bridge top atom; and n = 1-10.
IPC 1-7
IPC 8 full level
G03C 7/00 (2006.01); G03C 1/035 (2006.01); G03C 1/09 (2006.01); G03C 1/10 (2006.01); G03C 1/28 (2006.01); G03C 1/825 (2006.01); G03C 7/20 (2006.01); G03C 7/30 (2006.01); G03C 7/392 (2006.01); G03C 1/005 (2006.01); G03C 1/18 (2006.01)
CPC (source: EP US)
G03C 1/10 (2013.01 - EP US); G03C 1/28 (2013.01 - EP US); G03C 7/3924 (2013.01 - EP US); G03C 1/0051 (2013.01 - EP US); G03C 1/035 (2013.01 - EP US); G03C 1/18 (2013.01 - EP US); G03C 2001/03535 (2013.01 - EP US); G03C 2001/03558 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0703493 A1 19960327; EP 0703493 B1 19970820; DE 4433637 A1 19960328; DE 59500530 D1 19970925; JP H0895189 A 19960412; US 5571664 A 19961105
DOCDB simple family (application)
EP 95114105 A 19950908; DE 4433637 A 19940921; DE 59500530 T 19950908; JP 26201195 A 19950918; US 52509095 A 19950908