发明授权
US5972574A Photographic element containing magenta coupler having improved
manufacturability and dye light stability
失效
含有品红成色剂的摄影元件具有改进的可制造性和染料光稳定性
- 专利标题： Photographic element containing magenta coupler having improved manufacturability and dye light stability
- 专利标题（中）： 含有品红成色剂的摄影元件具有改进的可制造性和染料光稳定性
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申请号： US784171申请日： 1997-01-15
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公开(公告)号： US5972574A公开(公告)日： 1999-10-26
- 发明人: Susan M. Fischer , Robert F. Romanet , Daniel L. Kapp , Paul A. Burns , Paul P. Spara , Rakesh Jain , William R. Schleigh
- 申请人： Susan M. Fischer , Robert F. Romanet , Daniel L. Kapp , Paul A. Burns , Paul P. Spara , Rakesh Jain , William R. Schleigh
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： C07D487/04
- IPC分类号： C07D487/04 ; G03C7/38 ; G03C7/46
摘要：
Disclosed is a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by Formula I: ##STR1## wherein R" represents the group ##STR2## in which R.sup.1, R.sup.2, and R.sup.3 independently selected all groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent; andW is a specified substituent having the formula: ##STR3## and wherein the remaining substituents are as described in the specification. The use of the coupler of Formula I lends improved manufacturability and dye light stability to the element.
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