EP 1246000 A1 20021002 - Radiation-sensitive emulsion, silver halide photographic film material and radiographic intensifying screen-film combination
Title (en)
Radiation-sensitive emulsion, silver halide photographic film material and radiographic intensifying screen-film combination
Title (de)
Strahlungsempfindliche Emulsion, lichtempfindlicher photographischer Silberhalogenidfilm und Kombination eines radiographischen Verstärkungsschirms mit einem Film
Title (fr)
Emulsion sensible aux radiation, film photographique à l'halogénure d'argent sensible à la lumiére et structure radiographique combinant un film et un écran intensificateur
Publication
Application
Priority
EP 01000092 A 20010329
Abstract (en)
A chemically and spectrally-sensitized emulsion has been described, wherein said emulsion comprising (100) cubic silver halide grains with an average edge length of from 0.2 up to 1.5 mu m, has been spectrally sensitized by addition at least three trimethine dyes: a main spectral sensitizer added in an amount of at least 85mole% of all spectral sensitizers added, followed by adding a second spectral sensitizer in an amount of not more than 10mole% and a third spectral sensitizer in an amount of at most 5mole%, wherein at least said main spectral sensitizer has two benzoxazole rings in its chemical structure, at least said third spectral sensitizer has two benzimidazole rings in its chemical structure and wherein the said second spectral sensitizer has a structure more sterically hindered than the structure of the other spectral sensitizers. A light-sensitive silver halide photographic film material coated with such emulsion and a radiographic screen/film combination has been described.
IPC 1-7
IPC 8 full level
G03C 1/035 (2006.01); G03C 1/18 (2006.01); G03C 1/29 (2006.01); G03C 5/17 (2006.01); G03C 5/16 (2006.01)
CPC (source: EP)
G03C 1/035 (2013.01); G03C 1/18 (2013.01); G03C 1/29 (2013.01); G03C 5/17 (2013.01); G03C 5/16 (2013.01); G03C 2001/03511 (2013.01); G03C 2001/03541 (2013.01); G03C 2001/0357 (2013.01); G03C 2001/03594 (2013.01); G03C 2200/01 (2013.01)
Citation (search report)
- [A] US 5041366 A 19910820 - ASANO SATOMI [JP], et al
- [A] EP 0930527 A1 19990721 - AGFA GEVAERT NV [BE]
- [A] EP 0712036 A1 19960515 - AGFA GEVAERT NV [BE]
- [A] US 5296345 A 19940322 - YAMASHITA SEIJI [JP], et al
- [A] US 4607005 A 19860819 - URATA YUKIHIDE [JP]
- [A] DATABASE WPI Section Ch Week 199520, Derwent World Patents Index; Class E23, AN 1995-149870, XP002175986
- [A] DATABASE WPI Section Ch Week 198433, Derwent World Patents Index; Class E23, AN 1984-204139, XP002175987
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01000092 A 20010329