发明授权
- 专利标题: Cyan coupler and combination solvent-containing photographic element and process
- 专利标题(中): 青色耦合剂和组合溶剂的照相元件和工艺
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申请号: US266234申请日: 1999-03-10
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公开(公告)号: US6110658A公开(公告)日: 2000-08-29
- 发明人: James S. Honan , Raymond P. Scaringe , Thomas A. Rosiek
- 申请人: James S. Honan , Raymond P. Scaringe , Thomas A. Rosiek
- 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: G03C7/388
- IPC分类号: G03C7/388 ; G03C1/06 ; G03C5/30 ; G03C7/30 ; G03C7/34 ; G03C7/392 ; G03C1/38
摘要:
Disclosed is a photographic element having a reduced rate of crystal formation comprising a silver halide emulsion layer having associated therewith:(a) a phenolic cyan dye-forming "NB coupler";(b) a first high boiling solvent having Formula (IV):G--C--OO--R.sup.1 (IV) wherein:R.sup.1 is an alkyl or aryl groups; andG is an alkyl (including cycloalkyl and aralkyl) containing linking group; and(c) one or more second high boiling solvents selected from phosphates, phosphonates, phosphine oxides, sulfoxides, and carbonamides, said second high boiling solvent being present in amounts (by weight) sufficient to reduce crystal formation in a dispersion of the coupler compared to a dispersion of the same coupler in a dispersion where the second solvent is replaced with a like amount of the first solvent.
公开/授权文献
- US5445769A Spinner head for flash flow processing 公开/授权日:1995-08-29
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