会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Transparent film-forming compositions for magnetic recording
    • 用于磁记录的透明成膜组合物
    • US06905761B2
    • 2005-06-14
    • US10317514
    • 2002-12-12
    • Robert O. JamesGregory W. KeyesLawrence A. RowleyDaniel F. Hurley
    • Robert O. JamesGregory W. KeyesLawrence A. RowleyDaniel F. Hurley
    • G03C5/14G03C7/24G11B5/70G11B5/706G11B5/712B32B5/16B05D5/12C08K5/00G11B5/66
    • G03C5/14G03C7/24G11B5/7013G11B5/706G11B5/712Y10T428/25Y10T428/26Y10T428/265
    • A concentrated fine solid particle dispersion useful for forming a substantially photographically transparent magnetic recording layer is disclosed, comprising an organic solvent medium containing a dispersing agent and dispersed magnetic particles, wherein the magnetic particles are present at a concentration of at least 25% by weight and the organic solvent medium is comprised primarily of organic solvent selected from dimethyl succinate, dimethyl glutarate and dimethyl adipate. This invention provides a stable concentrated dispersion of magnetic particles useful for preparing substantially photographically transparent magnetic recording layers. A film-forming binder solution can be added to dilute the concentrated dispersion, which then can be applied to a support to form a transparent magnetic layer for a magnetic recording element. This invention also provides a photographic element which contains a magnetic recording layer which has excellent magnetic characteristics and which is substantially photographically transparent by virtue of its low granularity and optical density.
    • 公开了一种用于形成基本上为摄影透明的磁记录层的浓缩细小固体颗粒分散体,其包含含有分散剂和分散的磁性颗粒的有机溶剂介质,其中磁性颗粒以至少25重量%的浓度存在,以及 有机溶剂介质主要由选自琥珀酸二甲酯,戊二酸二甲酯和己二酸二甲酯的有机溶剂组成。 本发明提供用于制备基本上照相的透明磁记录层的磁性颗粒的稳定的浓缩分散体。 可以加入成膜粘合剂溶液以稀释浓缩的分散体,然后可以将其分散在载体上以形成用于磁记录元件的透明磁性层。 本发明还提供了一种照相材料,其含有磁记录层,该磁记录层具有优良的磁特性,并且由于其低颗粒度和光密度而基本上是摄影透明的。