Electromagnetic shielding composite comprising nanotubes
    1.
    发明授权
    Electromagnetic shielding composite comprising nanotubes 失效
    包含纳米管的电磁屏蔽复合材料

    公开(公告)号:US06265466B1

    公开(公告)日:2001-07-24

    申请号:US09250047

    申请日:1999-02-12

    IPC分类号: G21F110

    摘要: An electromagnetic shielding composite having nanotubes and a method of making the same are disclosed. According to one embodiment of the present invention, the composite for providing electromagnetic shielding includes a polymeric material and an effective amount of oriented nanotubes for EM shielding, the nanotubes being oriented when a shearing force is applied to the composite. According to another embodiment of the present invention, the method for making an electromagnetic shielding includes the steps of (1) providing a polymer with an amount of nanotubes, and (2) imparting a shearing force to the polymer and nanotubes to orient the nanotubes.

    摘要翻译: 公开了一种具有纳米管的电磁屏蔽复合体及其制造方法。 根据本发明的一个实施方案,用于提供电磁屏蔽的复合材料包括聚合材料和有效量的用于EM屏蔽的定向纳米管,当剪切力施加到复合材料时,纳米管是取向的。 根据本发明的另一个实施例,制造电磁屏蔽的方法包括以下步骤:(1)提供具有一定量纳米管的聚合物,和(2)向聚合物和纳米管施加剪切力以取向纳米管。

    Polymer nanocomposites and methods of preparation
    3.
    发明申请
    Polymer nanocomposites and methods of preparation 审中-公开
    聚合物纳米复合材料及其制备方法

    公开(公告)号:US20080281030A1

    公开(公告)日:2008-11-13

    申请号:US11437768

    申请日:2006-05-22

    IPC分类号: C08K3/34 C08L79/00 C08L71/12

    摘要: High-use temperature, lightweight polymer/inorganic nanocomposite materials are described having enhanced thermal stability and performance characteristics. These materials are made possible by new methods for synthesizing composite materials that enhance the thermal stability of the nanocomposite systems from 100-150° C. to over 450° C. These materials and techniques for their formation are enabled at least in part by the use of polar organic phthalonitrile monomers and oligomers that can exfoliate layered phyllosilicates, such as smectite clays, in percentages greater than 10% inorganic by weight. This approach offers a solvent-free direct melt intercalation technique that greatly reduces the cost of processing nanocomposites. Additionally, the use of unmodified phyllosilicates overcomes temperature limitations of prior art, which uses organically-modified layered silicates. The new technology provides hitherto unobtainable thermal stability and performance characteristics, and has numerous applications in the automotive, aerospace, electronic and marine industries.

    摘要翻译: 描述了具有增强的热稳定性和性能特征的高使用温度的轻质聚合物/无机纳米复合材料。 这些材料可以通过用于合成复合材料的新方法成为可能,其将增强纳米复合材料体系的热稳定性从100-150℃提高到450℃以上。这些材料和技术用于其形成至少部分地通过使用 的极性有机邻苯二甲腈单体和可以以大于10重量%无机重量百分比的百分比剥落层状页硅酸盐如蒙脱石粘土的低聚物。 这种方法提供无溶剂的直接熔融插层技术,大大降低了加工纳米复合材料的成本。 另外,未改性页硅酸盐的使用克服了使用有机改性层状硅酸盐的现有技术的温度限制。 新技术提供了迄今为止无法获得的热稳定性和性能特征,并在汽车,航空航天,电子和海洋行业拥有众多应用。

    Polymer nanocomposites and methods of preparation

    公开(公告)号:US07049353B2

    公开(公告)日:2006-05-23

    申请号:US10105618

    申请日:2002-03-26

    IPC分类号: C08K9/04 C08G65/00

    摘要: High-use temperature, lightweight polymer/inorganic nanocomposite materials are described having enhanced thermal stability and performance characteristics. These materials are made possible by new methods for synthesizing composite materials that enhance the thermal stability of the nanocomposite systems from 100–150° C. to over 450° C. These materials and techniques for their formation are enabled at least in part by the use of polar organic phthalonitrile monomers and oligomers that can exfoliate layered phyllosilicates, such as smectite clays, in percentages greater than 10% inorganic by weight. This approach offers a solvent-free direct melt intercalation technique that greatly reduces the cost of processing nanocomposites. Additionally, the use of unmodified phyllosilicates overcomes temperature limitations of prior art, which uses organically-modified layered silicates. The new technology provides hitherto unobtainable thermal stability and performance characteristics, and has numerous applications in the automotive, aerospace, electronic and marine industries.

    Dipyrromethenes and azadipyrromethenes as markers for petroleum products
    8.
    发明授权
    Dipyrromethenes and azadipyrromethenes as markers for petroleum products 有权
    Dipyrromethenes和azadipyrromethenes作为石油产品的标记

    公开(公告)号:US09222043B2

    公开(公告)日:2015-12-29

    申请号:US12885741

    申请日:2010-09-20

    摘要: Marking a petroleum product includes adding a covert dye selected from the group consisting of azadipyrromethene dyes, dipyrromethene dyes, and any combination thereof to the petroleum product and distributing the dye in the petroleum product. A petroleum product selected for analysis may be spectroscopically analyzed for the presence of an azadipyrromethene dye, a dipyrromethene dye, or a combination thereof. A concentration of at least one azadipyrromethene or dipyrromethene dye present in the portion of the petroleum product may be determined to identify the petroleum product as counterfeit, adulterated, or authentic based on the determined concentration of the azadipyrromethene or dipyrromethene dye.

    摘要翻译: 标记石油产品包括将选自氮杂二吡咯亚甲基染料,二吡咯亚甲基染料及其任何组合的隐蔽染料加入到石油产品中,并将染料分散在石油产品中。 可以光谱分析选择用于分析的石油产品中存在偶氮二吡咯亚甲基染料,二吡咯亚甲基染料或其组合。 基于测定的氮杂二吡咯亚甲基或二吡咯亚甲基染料的浓度,可以确定存在于石油产品部分中的至少一种氮杂二吡咯亚甲基或二吡咯亚甲基染料的浓度以将石油产品鉴定为假冒,掺假或可信。