发明公开
EP1199600A2 Color photographic element containing speed improving compound in combination with electron transfer agent releasing compound
审中-公开
含有增强速度结合化合物与释放电子传输化合物的化合物的彩色照相元件
- 专利标题： Color photographic element containing speed improving compound in combination with electron transfer agent releasing compound
- 专利标题（中）： 含有增强速度结合化合物与释放电子传输化合物的化合物的彩色照相元件
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申请号： EP01203776.8申请日： 2001-10-05
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公开(公告)号： EP1199600A2公开(公告)日： 2002-04-24
- 发明人: Bringley, Joseph F., c/o Eastman Kodak Company , Friday, James A., c/o Eastman Kodak Company , Singer, Stephen Paul, c/o Eastman Kodak Company , Vitale, Marcello, c/o Eastman Kodak Company
- 申请人： EASTMAN KODAK COMPANY
- 申请人地址： 343 State Street Rochester, New York 14650 US
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 当前专利权人地址： 343 State Street Rochester, New York 14650 US
- 代理机构： Nunney, Ronald Frederick Adolphe
- 优先权： US690569 20001017
- 主分类号： G03C7/392
- IPC分类号： G03C7/392
摘要：
Disclosed is a color silver halide photographic element comprising a support bearing:
(1) a light sensitive silver halide emulsion layer;
(2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substituents, and has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound, said heterocycle compound located either in said light sensitive layer or in a layer adjacent to it; and
(3) an ETARC, in or adjacent to said light sensitive silver halide emulsion layer, that releases, upon reaction with oxidized developer, an electron transfer agent having a ClogP of at least 2.40. The invention provides improved light sensitivity.
(1) a light sensitive silver halide emulsion layer;
(2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substituents, and has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound, said heterocycle compound located either in said light sensitive layer or in a layer adjacent to it; and
(3) an ETARC, in or adjacent to said light sensitive silver halide emulsion layer, that releases, upon reaction with oxidized developer, an electron transfer agent having a ClogP of at least 2.40. The invention provides improved light sensitivity.
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