Cyanine dyes containing an imidazo-(4,5-b)-quinoxaline...

Details Cyanine dyes containing an imidazo-(4,5-b)-quinoxaline... Cyanine dyes containing an imidazo-(4,5-b)-quinoxaline...

C - Chemistry, Metallurgy

09

B

96/117, 260/256,

C09B 23/00 (2006.01) C09B 23/02 (2006.01) C09B 23/10 (2006.01) C09B 23/14 (2006.01) G03C 1/12 (2006.01) G03C 1/485 (2006.01)

Patent

CA 1066704

ABSTRACT CYANINE DYES CONTAINING AN IMIDAZO-[4,5-b]-QUINOXALINE NUCLEUS AND THEIR USE IN PHOTOGRAPHIC ELEMENTS The present invention concerns cyanine dyes and their use in photographic emulsions, particularly in emulsions for use in direct positive photographic elements.

275705

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