Dye-forming coupler, silver halide photographic...

Details Dye-forming coupler, silver halide photographic... Dye-forming coupler, silver halide photographic...

2007-03-27

2007-03-27

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C544S009000, C544S010000, C544S012000, C544S284000, C544S287000

Reexamination Certificate

active

10679466

ABSTRACT:
A yellow dye-forming coupler represented by formula (I):wherein Q represents a group of nonmetallic atoms that form a 5- to 7-membered ring in combination with the —N═C—N(R1)—; R1and R2each represent a substituent; R4represents an alkyl group; m represents an integer of 0 to 4; and X represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent; and when R4represents a primary alkyl group, R1represents —(CH2)3O—R101in which R101is an alkyl group having 4 to 8 carbon atoms. A silver halide color photographic light-sensitive material having at least one yellow dye-forming coupler represented by formula (I) in at least one layer provided on a support.

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Edited by Society of Photographic Science and Technology of Japan, “Revised version, Basis of Photographic Engineering—Silver Salt Photography—,” Japan, Corona Publishing Co., Ltd., Oct. 16, 1998, pp. 243-247, Part 3.6, color material.

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