发明授权
US4833070A Color photographic recording material containing a yellow DIR coupler
失效
含有黄色DIR耦合器的彩色照相材料
- 专利标题: Color photographic recording material containing a yellow DIR coupler
- 专利标题(中): 含有黄色DIR耦合器的彩色照相材料
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申请号: US90457申请日: 1987-08-28
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公开(公告)号: US4833070A公开(公告)日: 1989-05-23
- 发明人: Friedrich-Wilhelm Kunitz , Hans hlschlager , Heinrich Odenwalder , Dirk Hubner
- 申请人: Friedrich-Wilhelm Kunitz , Hans hlschlager , Heinrich Odenwalder , Dirk Hubner
- 申请人地址: DEX Leverkusen
- 专利权人: Agfa-Gevaert Aktiengesellschaft
- 当前专利权人: Agfa-Gevaert Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3630564 19860909
- 主分类号: G03C7/36
- IPC分类号: G03C7/36 ; C07D249/12 ; G03C7/305
摘要:
Remarkably high interimage and Eberhard effects are obtained when yellow DIR couplers corresponding to formuls I are added to multilayered color photographic recording materials, in particular to the green-sensitive or red-sensitive layers. These couplers can improve the sharpness and color reproduction. ##STR1## R.sup.1 denoted alkyl or aryl, R.sup.2 denotes alkyl with up to 18 carbon atoms,R.sup.3 denotes halogen, SO.sub.2 --R.sup.6, SO.sub.2 --NR.sup.7 --R.sup.8 or NH--SO.sub.2 --R.sup.6,R.sup.4 denoted H, alkyl or aryl.R.sup.5 denotes alkyl, cycloalkyl, alkinyl, aralkyl or aryl,R.sup.6 denotes alkyl or aryl,R.sup.7 denotes H or alkyl andR.sup.8 denoted H, alkyl, aryl, CO--R.sup.6 or ##STR2## and the total number of carbon atoms in R.sup.4 and R.sup.5 is not greater than 11.
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