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160 条记录 (耗时 0.028 秒)

    Antistatic backing for photographic paper
    46.
    发明授权
    Antistatic backing for photographic paper 失效
    防静电背衬用于相纸

    公开(公告)号：US06171769B2

    公开(公告)日：2001-01-09

    申请号：US09305950

    申请日：1999-05-06

    申请人： Debasis Majumdar ,  Charles C. Anderson

    发明人： Debasis Majumdar ,  Charles C. Anderson

    IPC分类号： G03C179

    CPC分类号： G03C1/85 ,  G03C1/04 ,  G03C1/79

    摘要： The present invention is a photographic element including a support with a polyolefin resin layer, which is preferably polypropylene, on each surface of the support. The photographic element includes a print or backmark retaining and spliceable antistatic layer having a dry coverage of from 10 mg/m2 to 10,000 mg/m2 on one of the free surfaces of the polyolefin layers. An imaging layer may be superimposed on the other free surface of the polyolefin layers. The antistatic layer includes a (i) conductive agent, preferably a combination of an alkali metal salt and a polymerized alkylene oxide, (ii) colloidal silica, preferably aluminum modified colloidal silica and (iii) a polymeric film-forming binder with a peel strength of 200 g or above on a polypropylene surface on which the antistatic layer of the present invention is to be formed. Such an antistatic layer is expected to provide surface electrical resistivity of less than 12 log &OHgr;/□, preferably equal to or less than 11 log &OHgr;/□, and excellent backmark retention characteristics and spliceability for commercial photofinishing equipment such as the Gretag CLAS 35 printers.

    摘要翻译： 本发明是一种照相元件，其包括在支撑体的每个表面上具有聚烯烃树脂层的支撑体，其优选为聚丙烯。 照相元件包括在聚烯烃层的一个自由表面上具有10mg / m 2至10,000mg / m 2的干覆盖率的印刷或背面保持和可拼接的抗静电层。 成像层可以叠加在聚烯烃层的另一自由表面上。 抗静电层包括（i）导电剂，优选碱金属盐和聚合的烯化氧的组合，（ii）胶体二氧化硅，优选铝改性的胶体二氧化硅和（iii）具有剥离强度的聚合物成膜粘合剂 在其上将形成本发明的抗静电层的聚丙烯表面上为200g以上。 预期这种抗静电层的表面电阻率小于12logΩ/平方，优选等于或小于11logΩ/平方，以及用于商业照相洗印加工设备如Gretag CLAS 35打印机的优异的背标保持特性和可拼接性 。

    Electrically-conductive layer for imaging element containing composite metal-containing particles
    47.
    发明授权
    Electrically-conductive layer for imaging element containing composite metal-containing particles 失效
    用于含复合金属颗粒的成像元件的导电层

    公开(公告)号：US6114079A

    公开(公告)日：2000-09-05

    申请号：US053563

    申请日：1998-04-01

    申请人： Paul A. Christian ,  Debasis Majumdar ,  Ibrahim M. Shalhoub ,  Dennis J. Eichorst

    发明人： Paul A. Christian ,  Debasis Majumdar ,  Ibrahim M. Shalhoub ,  Dennis J. Eichorst

    IPC分类号： G03C1/85 ,  G03C1/89 ,  G03C1/95 ,  B41J3/407 ,  G03C8/52 ,  G03C11/22

    CPC分类号： G03C1/95 ,  G03C1/85 ,  G03C1/853 ,  G03C1/89

    摘要： The present invention is an imaging element including a support having a frontside and a backside, an imaging layer superposed on the frontside of said support, and a print-retaining, electrically-conductive layer superposed on the backside of the support. The electrically-conductive layer includes a film-forming binder comprising the latex polymeric addition product of from 20 to 65 mol % of styrene, from 30 to 78 mol % of n-butyl methacrylate, and from 2 to 10 mol % of the sodium salt of 2-sulfoethyl methacrylate. and at least about 60 weight percent composite electrically conductive particles. The composite electrically-conductive particles have a layer of electrically-conductive metal-containing crystallites overlying a nonconductive substrate particle. The electrically-conductive layer is formed by dispersing the composite electrically-conductive particles using polymeric milling media having a mean particle size less than 350 .mu.m to form a colloidal dispersion, combining the colloidal dispersion with the film forming binder to form a mixture, coating the mixture onto the support and drying the mixture to form the electrically-conductive layer.

    摘要翻译： 本发明是一种成像元件，其包括具有前侧和后侧的支撑体，叠置在所述支撑体的前侧上的成像层和叠置在支撑体的背面上的印刷保持导电层。 导电层包括成膜粘合剂，其包含20至65mol％的苯乙烯，30至78mol％的甲基丙烯酸正丁酯和2至10mol％的钠盐的胶乳聚合加成产物 的甲基丙烯酸2-磺乙酯。 和至少约60重量％的复合导电颗粒。 复合导电颗粒具有覆盖在非导电性基材颗粒上的导电性含金属微晶层。 通过使用平均粒度小于350μm的聚合物研磨介质分散复合导电颗粒来形成导电层，以形成胶体分散体，将胶体分散体与成膜粘合剂组合以形成混合物，涂层 将混合物加载到载体上并干燥混合物以形成导电层。