Invention Grant
- Patent Title: Silver halide color photographic light-sensitive material
- Patent Title (中): 卤化银彩色摄影感光材料
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Application No.: US380489Application Date: 1989-07-17
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Publication No.: US4929540APublication Date: 1990-05-29
- Inventor: Nobuo Furutachi , Takeshi Hirose
- Applicant: Nobuo Furutachi , Takeshi Hirose
- Applicant Address: JPX Kanagawa
- Assignee: Fuji Photo Film Co., Ltd.
- Current Assignee: Fuji Photo Film Co., Ltd.
- Current Assignee Address: JPX Kanagawa
- Priority: JPX63-178486 19880718
- Main IPC: C07D403/12
- IPC: C07D403/12 ; G03C7/305 ; G03C7/384
Abstract:
A silver halide color photographic light-sensitive material comprising a support and at least one silver halide photographic emulsion layer on the support, said emulsion layer containing a 5-pyrazolone coupler having a coupling eliminable group of the following general formula (I) at the coupling site thereof: ##STR1## wherein L.sub.1 represents a substituted or an unsubstituted methylene or ethylene group; l represents 0 or 1; m represents 0 or an integer from 1 to 3; R.sub.1 represents a hydrogen atom, or a substituted or an unsubstituted alkyl, aryl or heterocyclic group; Y represents ##STR2## Q represents a single bond or nonmetal atoms necessary to complete a 5- to 8-membered ring together with ##STR3## said 5- to 8-membered ring may further have a saturated or an unsaturated ring condensed thereto; R.sub.2 represents a halogen atom, an alkyl group; an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an acylamino group, an alkoxycarbonylamino group, a sulfonamide group, a sulfamoyl group, an ureido group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a cyano group, a trifluoromethyl group, an amino group, an N-alkylamino group, an N-arylamino group, an N,N-dialkylamino group, a diacylamino group, an imido group or a carbamoyl group, and when m represents 2 or 3, R.sub.2 groups may be the same or different; R.sub.2 ' represents a hydrogen atom, or has the same meaning as R.sub.2 and two R.sub.2 ' groups may be linked to form a 5- to 7-membered saturated or unsaturated ring; and --Y Q may be a substituted or an unsubstituted carbon-carbon or carbon-nitrogen double bond. The silver halide photographic material provides a magenta image having a high maximum density and light fastness.
Public/Granted literature
- US5447787A Reinforced fabric Public/Granted day:1995-09-05
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