Methine dyes, manufacturing methods thereof, and silver...

Details Methine dyes, manufacturing methods thereof, and silver... Methine dyes, manufacturing methods thereof, and silver...

2005-04-26

2005-04-26

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S159000, C548S219000

Reexamination Certificate

active

06884891

ABSTRACT:
Methine dye compounds represented by formula (1) and highly sensitive silver halide photographic materials containing these compounds:in-line-formulae description="In-line Formulae" end="lead"?Dye1-(L1-(Dye2)m1)m2(CI1)y1  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein L1represents a linkage group represented by formula (2), m1 represents an integer of 1 to 5, m2 represents an integer of 1 to 5, Dye1 represents a first chromophore, Dye 2 represents a second chromophore, CI1represents an ion for neutralization of electric charge, and y1 represents a number of the ions required for neutralization of electric charges;in-line-formulae description="In-line Formulae" end="lead"?-G1-A1-Y1-G2-Y2-A2-G3-  (2)in-line-formulae description="In-line Formulae" end="tail"?wherein A1and A2each individually represent a carbonyl group or a sulfonyl group, Y1and Y2each individually represent —O—, —S— or —NR1—, R1represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group, and G1, G2and G3each individually represent a divalent linkage group.

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