Photographic speed increasing and latent image stabilizing...

Details Photographic speed increasing and latent image stabilizing... Photographic speed increasing and latent image stabilizing...

C - Chemistry, Metallurgy

07

D

96/118, 260/298.

C07D 263/54 (2006.01) C07D 263/58 (2006.01) C07D 277/62 (2006.01) C07D 277/82 (2006.01) C07D 293/12 (2006.01) G03C 1/10 (2006.01) G03C 1/34 (2006.01)

Patent

CA 1173042

Abstract of the Disclosure Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated; Image wherein X is -O-, -S-, -Se-, or -?-; Y represents the atoms completing a fused aromatic nucleus; Z is -CH2?- or -?-; and R is hydrogen or lower alkyl of from 1 to 5 carbon atoms.

411798

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