Silver halide color photosensitive material

Details Silver halide color photosensitive material Silver halide color photosensitive material

2005-02-22

2005-02-22

Letscher, Geraldine (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

C430S543000, C430S384000, C430S385000

Reexamination Certificate

active

06858380

ABSTRACT:
A silver halide color photosensitive material comprises at least one layer on a support. At least one of the layers contains a coupler represented by general formula (I):wherein X represents H or split-off group; R1and R2independently represents an electron withdrawing group whose Hammett σp value is 0.20 or greater, provided that the sum of R1and R2σp values is 0.65 or greater; R3represents a group selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl and heterocyclic, each of which may have a substituent; R4represents H, or a group selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl, acyl, alkoxycarbonyl, aryloxycarbonyl and carbamoyl, each of which may have a substituent, provided that R3and R4may be bonded to form a ring; R11, R12and R13independently represent an alkyl group having 1-30 carbon atoms; R represents a substituent; and n represents an integer of 0-3.

REFERENCES:
patent: 6159671 (2000-12-01), Matsuda
patent: 6322959 (2001-11-01), Matsuda
patent: 6399291 (2002-06-01), Tateishi et al.
patent: 6541192 (2003-04-01), Kato et al.
patent: 20020115029 (2002-08-01), Kato et al.
patent: 2002-162715 (2002-06-01), None

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