发明授权
- 专利标题: Polymer overcoat for imaging elements
- 专利标题(中): 用于成像元件的聚合物外涂层
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申请号: US09311968申请日: 1999-05-14
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公开(公告)号: US06197482B1公开(公告)日: 2001-03-06
- 发明人: Lloyd A. Lobo , Mridula Nair , Rukmini B. Lobo , Barry A. Fitzgerald
- 申请人: Lloyd A. Lobo , Mridula Nair , Rukmini B. Lobo , Barry A. Fitzgerald
- 主分类号: G03C1765
- IPC分类号: G03C1765
摘要:
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.
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