发明授权
- 专利标题: Photographic element with particular magenta coupler
- 专利标题(中): 具有特殊洋红色耦合器的摄影元件
-
申请号: US134565申请日: 1998-08-14
-
公开(公告)号: US5994048A公开(公告)日: 1999-11-30
- 发明人: John W. Harder , Leslie Shuttleworth , Rakesh Jain
- 申请人: John W. Harder , Leslie Shuttleworth , Rakesh Jain
- 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: G03C7/305
- IPC分类号: G03C7/305 ; G03C7/38 ; G03C1/08 ; G03C7/26 ; G03C7/32
摘要:
Disclosed is a photographic element comprising a support on which is coated at least one green-sensitized silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler of Formula I ##STR1## wherein: R.sub.1 is an alkyl group;R.sub.5, R.sub.6, R.sub.7, and R.sub.8 each independently represent a hydrogen atom or a substituent; and ##STR2## in which i, B, and J are independently hydrogen, alkyl or aryl substituent groups that together comprise at least two hydroxyl groups. The element provides improved resistance to yellowing.
公开/授权文献
信息查询