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    • 4. 发明授权
    • Polymer overcoat for imaging elements
    • 用于成像元件的聚合物外涂层
    • US06197482B1
    • 2001-03-06
    • US09311968
    • 1999-05-14
    • Lloyd A. LoboMridula NairRukmini B. LoboBarry A. Fitzgerald
    • Lloyd A. LoboMridula NairRukmini B. LoboBarry A. Fitzgerald
    • G03C1765
    • G03C1/7614G03C1/85G03C5/14G03C11/08G03C2001/7635Y10S430/162
    • The present invention is an imaging element which includes a support, an imaging layer superposed on a side of said support and an overcoat overlying the imaging layer. The overcoat is composed of an organic polymer. The overcoat is discontinuous such that a fraction of the surface area of the imaging layer remains uncovered by said polymer, wherein the fraction of area not covered by the said polymer is from 0.02 to 0.98. The present invention is a photographic which includes a support, a silver halide emulsion layer superposed on a side of said support and an overcoat overlying the silver halide layer. The overcoat is composed of an organic polymer. The overcoat is discontinuous such that a fraction of the surface area of the silver halide emulsion layer remains uncovered by said polymer, wherein the fraction of area not covered by the said polymer is from 0.02 to 0.98. In one embodiment, the discontinuous overcoat is a series of parallel stripes.
    • 本发明是一种成像元件,其包括支撑体,叠置在所述支撑体一侧的成像层和覆盖在成像层上的外罩。 外涂层由有机聚合物组成。 外涂层是不连续的,使得成像层的表面积的一部分仍然被所述聚合物覆盖,其中未被所述聚合物覆盖的面积的分数为0.02至0.98。 本发明是一种照相装置,它包括载体,叠加在所述载体一侧上的卤化银乳剂层和覆盖在卤化银层上的外涂层。 外涂层由有机聚合物组成。 外涂层是不连续的,使得卤化银乳剂层的表面积的一部分保持未被所述聚合物覆盖,其中未被所述聚合物覆盖的面积的分数为0.02至0.98。 在一个实施例中,不连续外涂层是一系列平行条纹。