EP 0709724 B1 20020508 - Silver halide emulsions with doped epitaxy
Title (en)
Silver halide emulsions with doped epitaxy
Title (de)
Silberhalogenidemulsionen mit dotierter Epitaxie
Title (fr)
Emulsions d'halogénure d'argent à l'épitaxie dotée
Publication
Application
Priority
- US 31600394 A 19940930
- US 33028094 A 19941027
Abstract (en)
[origin: EP0709724A2] A photographic silver halide emulsion is disclosed comprised of radiation sensitive composite silver halide grains including host grain portions accounting for at least 50 percent of total silver and surface portions epitaxially deposited on the host grain portions. The epitaxially deposited surface portions on the host grain portions exhibit a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal from periods 4, 5 and 6 of groups 3 to 14 inclusive of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
IPC 1-7
IPC 8 full level
G03C 1/00 (2006.01); G03C 1/015 (2006.01); G03C 1/035 (2006.01); G03C 1/08 (2006.01); G03C 1/09 (2006.01); G03C 1/10 (2006.01)
CPC (source: EP)
G03C 1/08 (2013.01); G03C 1/09 (2013.01); G03C 1/035 (2013.01); G03C 2001/03517 (2013.01); G03C 2001/03552 (2013.01); G03C 2001/0845 (2013.01); G03C 2001/093 (2013.01); G03C 2200/33 (2013.01)
Citation (examination)
EP 0634689 A1 19950118 - EASTMAN KODAK CO [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0709724 A2 19960501; EP 0709724 A3 19960508; EP 0709724 B1 20020508; DE 69526624 D1 20020613; DE 69526624 T2 20021121; JP H08179452 A 19960712
DOCDB simple family (application)
EP 95202609 A 19950928; DE 69526624 T 19950928; JP 25538395 A 19951002