发明名称 Color photographic element containing ballasted tetrazole derivative and inhibitor releasing coupler
摘要 The invention provides a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a tetrazole compound of Formula I: <CHEM> wherein when R1 is hydrogen, then R2 is an alkyl, aryl, alkoxy, aryloxy, alkylthio or arylthio, sulfoxyl, sulfonyl, sulfamoyl, -O-CO-, -O-SO2-, a heterocyclic group, a carbonyl group or an amino group or when R2 is a thiol (-SH) group, then R1 is an alkyl, aryl or heterocyclic group provided further that the ClogP for the compound of Formula I is at least 2.0 and less than 7.8; and b) a second light sensitive silver halide emulsion layer, having a spectral sensitivity different from that of the first light sensitive silver halide emulsion layer, containing a compound of Formula II: COUP-(TIME)j-INH wherein: 1) COUP is a coupler parent group capable of forming a dye upon reaction with an oxidized developer; 2) TIME is a timing group bonded to the coupling position of COUP and j is 0 or 1; and 3) INH is a mild silver development inhibitor fragment. The invention provides improved color reproduction.
申请公布号 EP1072950(A1) 申请公布日期 2001.01.31
申请号 EP20000202477 申请日期 2000.07.12
申请人 EASTMAN KODAK COMPANY 发明人 BURNS, PAUL A.;FRIEDRICH, LOUIS E.;SINGER, STEPHEN P.
分类号 G03C1/34;G03C1/43;G03C7/30;G03C7/305;G03C7/388;G03C7/392 主分类号 G03C1/34
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