发明名称 Photographic elements containing new cyan dye-forming coupler providing improved color reproduction
摘要 The invention provides a photographic element which comprises a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler having the formula: <IMAGE> wherein: R1 represents an alkyl or aryl group; R2 represents an alkyl group of 2 to 4 carbon atoms; Ar represents an aryl group; and Z represents a hydrogen atom or a group capable of being split off by reaction of the coupler with an oxidized color developing agent. Such elements provide an improved cyan dye hue upon development.
申请公布号 US5674666(A) 申请公布日期 1997.10.07
申请号 US19960742784 申请日期 1996.10.31
申请人 EASTMAN KODAK COMPANY 发明人 LAU, PHILIP T.;ROSSI, LOUIS J.;COWAN, STANLEY W.
分类号 G03C7/34;G03C7/407;(IPC1-7):G03C7/34 主分类号 G03C7/34
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