基本信息:
- 专利标题： PHOTOGRAPHIC ELEMENTS CONTAINING PYRAZOLONE COUPLERS AND PROCESS
- 专利标题（中）：含有吡唑啉酮偶联剂和过程的摄影元素
- 申请号：PCT/US1992003396 申请日：1992-04-23
- 公开(公告)号：WO1992018903A1 公开(公告)日：1992-10-29
- 发明人： EASTMAN KODAK COMPANY , KRISHNAMURTHY, Sundaram , ROSIEK, Thomas, Arthur , FLOW, Vincent, James , BAILEY, David, Scott , GIACHERIO, David, James , PAWLAK, John, Lawrence , SINGER, Stephen, Paul
- 申请人： EASTMAN KODAK COMPANY
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 优先权： US689,436 19910423
- 主分类号： G03C07/384
- IPC分类号： G03C07/384
摘要：
Pyrazolone magenta dye-forming couplers having a particular arylthio coupling-off group enhance the photographic properties and improve the manufacturing and handling characteristics of materials and processes employing such couplers. The coupler contains an N-phenyl group, a 3-anilino group and a 4-(arylthio) coupling-off group containing a particular aryloxymethylacylamino group as an ortho substituent. A broad range of improvements are realized including stability, reactivity, hue, and dye density in addition to simplified and safer manufacture.