发明名称 Photographic material and process comprising a bicyclic pyrazolo coupler
摘要 A photographic element contains a photographic silver halide layer having associated therewith a bicyclic pyrazolo coupler having a ballast group represented by Formula (I): -C(R')m-L-Y-Ar(R'')n wherein: L is a divalent linking group connecting the methylene group to the remainder of the ballast group and containing at least one group selected from the group consisting of -NR1CO-, -CONR1-, -NR1SO2- and -SO2NR1-, wherein R1 is hydrogen or a substituent; Y is a divalent linking group connecting L to Ar and containing a member selected from the group consisting of -O-, -S-, and -NR1- wherein R1 is hydrogen or a substituent; Ar is an aryl group; each R' and R'' is independently a substituent, provided that at least one R'' is a substituted or unsubstituted alkyl or alkoxy group having at least 10 carbon atoms; and m and n are at least 1.
申请公布号 US5378587(A) 申请公布日期 1995.01.03
申请号 US19920993928 申请日期 1992.12.18
申请人 EASTMAN KODAK COMPANY 发明人 KRISHNAMURTHY, SUNDARAM;COWAN, STANLEY W.
分类号 G03C7/00;G03C7/38;(IPC1-7):G03C7/38 主分类号 G03C7/00
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