Light-sensitive silver halide color photographic material

Details Light-sensitive silver halide color photographic material Light-sensitive silver halide color photographic material

1991-08-21

1993-06-01

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430389, G03C 736

Patent

active

052158772

ABSTRACT:
Disclosed are a yellow coupler represented by the following formula (I) and a light-sensitive silver halide color photographic material having at least one silver halide emulsion layer on a support, which comprises a two-equivalent yellow coupler represented by the following formula (I) being contained in at least one of the above silver halide emulsion layers: ##STR1## wherein R.sub.1 represents an alkyl group or a cycloalkyl group; R.sub.2 represents an alkyl group, a cycloalkyl group or an aryl group; R.sub.3 represents a straight unsubstituted alkyl group having 8 to 20 carbon atoms; X represents >NR.sub.4, --O-- or --S(O).sub.n --; Y represents >NR.sub.5 or ##STR2## where R.sub.4 and R.sub.5 each represent an alkyl group, a cycloalkyl group or an aryl group; and R.sub.6 and R.sub.7 each represent hydrogen atom, --OR.sub.8, ##STR3## and --S(O).sub.P R.sub.8 (where R.sub.8 represents an alkyl group, a cycloalkyl group and an aryl group; R.sub.9 represents hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group; R.sub.8 and R.sub.9 may be bonded mutually to form a hetero ring; and p represents an integer of 0 to 2); R.sub.6 and R.sub.7 may be bonded mutually to form a ring; and n represents an integer of 0 to 2; B.sub.1 represents a substitutable group on a benzene ring; and m represents an integer of 0 to 2.

REFERENCES:
patent: 4404274 (1983-09-01), Arai et al.
patent: 5066574 (1991-11-01), Kubota et al.

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