EP 0887700 A1 19981230 - Sensitizing dyes for enhanced light absorption
Title (en)
Sensitizing dyes for enhanced light absorption
Title (de)
Sensibilisierungsfarbstoffe für erhöhte Lichtabsorption
Title (fr)
Colorants sensibilisateurs pour absorption améliorée de lumière
Publication
Application
Priority
US 88177797 A 19970624
Abstract (en)
A silver halide photographic element comprises at least one silver halide emulsion spectrally sensitized by a molecule of formula I: (Dye 1) - (L - Ä(Dye 2)Ün)m wherein Dye 1 comprises a first chromophore and Dye 2 comprises a second chromophore, wherein Dye 1 adsorbs to silver halide more strongly then Dye 2, and Dye 1 absorbs light at a longer wavelength then Dye 2, L is an organic linking group containing at least one hetero atom which is not part of an amide or ester group, and m and n are independently an integer of 1-3. <IMAGE>
IPC 1-7
IPC 8 full level
G03C 1/12 (2006.01)
CPC (source: EP)
G03C 1/12 (2013.01)
Citation (search report)
- [XA] FR 930514 A 19480128 - PHOTO PRODUITS GEVAERT
- [DA] JP S6491134 A 19890410 - FUJI PHOTO FILM CO LTD
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0887700 A1 19981230; EP 0887700 B1 20040128; DE 69821289 D1 20040304; DE 69821289 T2 20041125; JP H1165016 A 19990305
DOCDB simple family (application)
EP 98201969 A 19980612; DE 69821289 T 19980612; JP 17599198 A 19980623