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    Process for preparing substrates with porous surface
    4.
    发明申请
    Process for preparing substrates with porous surface 审中-公开
    用多孔表面制备底物的方法

    公开(公告)号：US20080277346A1

    公开(公告)日：2008-11-13

    申请号：US11705620

    申请日：2007-02-13

    申请人： Joseph J. Kirkland ,  Timothy J. Langlois

    发明人： Joseph J. Kirkland ,  Timothy J. Langlois

    IPC分类号： B01D15/08 ,  B05D1/36 ,  B32B15/02

    CPC分类号： G01N30/52 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28019 ,  B01J20/28057 ,  B01J20/283 ,  B01J20/286 ,  B01J20/3268 ,  B01J20/3289 ,  B01J20/3295 ,  B82Y30/00 ,  G01N2030/524 ,  G01N2030/525 ,  G01N2030/562 ,  Y10T428/2989 ,  Y10T428/2991

    摘要： A process for preparing nanoparticle coated surfaces including the steps of electrostatically coating surfaces with polyelectrolyte by exposing the surface to a solution or suspension of polyelectrolyte, removing excess non-bound polyelectrolyte, then further coating the particles with a multi-layer of charged nanoparticles by exposing the polyelectrolyte-coated surface to a fluid dispersion including the charged nanoparticles. The process steps can optionally be repeated thereby adding further layers of polyelectrolyte followed by nanoparticles as many times as desired to produce a second and subsequent layers. The polyelectrolyte has an opposite surface charge to the charged nanoparticles and a molecular weight at the ionic strength of the fluid that is effective so that the first, second, and subsequent layers independently comprise a multiplicity of nanoparticle layers that are thicker than monolayers.

    摘要翻译： 一种制备纳米颗粒涂层表面的方法，包括以下步骤：通过将表面暴露于聚电解质的溶液或悬浮液，去除多余的未结合的聚电解质，然后通过暴露于多层带电荷的纳米颗粒 聚电解质涂覆的表面到包含带电纳米粒子的流体分散体。 可以可选地重复该工艺步骤，从而根据需要添加多层聚电解质，然后再加入纳米颗粒以产生第二层和后续层。 聚电解质与带电荷的纳米颗粒具有相反的表面电荷，并且具有有效的离子强度的分子量，使得第一，第二和后续层独立地包含比单层厚的多个纳米颗粒层。

    Porous microparticles with solid cores
    5.
    发明申请
    Porous microparticles with solid cores 审中-公开
    具有固体核的多孔微粒

    公开(公告)号：US20070189944A1

    公开(公告)日：2007-08-16

    申请号：US11705629

    申请日：2007-02-13

    申请人： Joseph J. Kirkland ,  Timothy J. Langlois

    发明人： Joseph J. Kirkland ,  Timothy J. Langlois

    IPC分类号： C01B33/26 ,  G01N30/02 ,  B01D15/08

    CPC分类号： G01N30/52 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28019 ,  B01J20/28057 ,  B01J20/283 ,  B01J20/286 ,  B01J20/3268 ,  B01J20/3289 ,  B01J20/3295 ,  B82Y30/00 ,  G01N2030/524 ,  G01N2030/525 ,  G01N2030/562 ,  Y10T428/2989 ,  Y10T428/2991

    摘要： The present invention relates to microparticles, particularly spherical silica microparticles, which may be useful in liquid chromatography. Specifically, the microparticles include a solid core and an outer porous shell surrounding and irreversibly joined to the core. The shell is composed of a plurality of colloidal nanoparticles, which are applied using an electrostatic multi-multilayering method. The resulting microparticles have a small particle diameter, such as about 1 μm to 3.5 μm, a high particle density, such as about 1.2 g/cc to 1.9 g/cc, and a high surface area, such as about 50 m2/g to 165 m2/g. These microparticles can be used to form packed beds and liquid chromatographic columns, which are more efficient and rugged than conventional liquid chromatographic columns.

    摘要翻译： 本发明涉及可用于液相色谱的微粒，特别是球形二氧化硅微粒。 具体地说，微粒包括实心芯和围绕并不可逆地连接到芯的外多孔壳。 壳体由多个胶体纳米颗粒组成，其使用静电多层压法施加。 所得到的微粒具有例如约1μm〜3.5μm的小粒径，高的粒子密度例如约1.2g / cc〜1.9g / cc，高的表面积例如约50μm以下， 2 / g至165m 2 / g。 这些微粒可用于形成填充床和液相色谱柱，其比常规液相色谱柱更有效和坚固。

    PROCESS FOR PREPARING SUBSTRATES WITH POROUS SURFACE
    6.
    发明申请
    PROCESS FOR PREPARING SUBSTRATES WITH POROUS SURFACE 审中-公开
    用多孔表面制备基材的方法

    公开(公告)号：US20090297853A1

    公开(公告)日：2009-12-03

    申请号：US12489943

    申请日：2009-06-23

    申请人： Joseph J. Kirkland ,  Timothy J. Langlois

    发明人： Joseph J. Kirkland ,  Timothy J. Langlois

    IPC分类号： B05D3/10 ,  B01D15/08 ,  B32B1/00

    CPC分类号： G01N30/52 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28019 ,  B01J20/28057 ,  B01J20/283 ,  B01J20/286 ,  B01J20/3268 ,  B01J20/3289 ,  B01J20/3295 ,  B82Y30/00 ,  G01N2030/524 ,  G01N2030/525 ,  G01N2030/562 ,  Y10T428/2989 ,  Y10T428/2991

    摘要： A process for preparing nanoparticle coated surfaces including the steps of electrostatically coating surfaces with polyelectrolyte by exposing the surface to a solution or suspension of polyelectrolyte, removing excess non-bound polyelectrolyte, then further coating the particles with a multi-layer of charged nanoparticles by exposing the polyelectrolyte-coated surface to a fluid dispersion including the charged nanoparticles. The process steps can optionally be repeated thereby adding further layers of polyelectrolyte followed by nanoparticles as many times as desired to produce a second and subsequent layers. The polyelectrolyte has an opposite surface charge to the charged nanoparticles and a molecular weight at the ionic strength of the fluid that is effective so that the first, second, and subsequent layers independently comprise a multiplicity of nanoparticle layers that are thicker than monolayers.

    摘要翻译： 一种制备纳米颗粒涂层表面的方法，包括以下步骤：通过将表面暴露于聚电解质的溶液或悬浮液，去除多余的非结合聚电解质，然后用​​多层带电荷的纳米颗粒将所述颗粒暴露 聚电解质涂覆的表面到包含带电纳米粒子的流体分散体。 可以可选地重复该工艺步骤，从而根据需要添加多层聚电解质，然后再加入纳米颗粒以产生第二层和后续层。 聚电解质与带电荷的纳米颗粒具有相反的表面电荷，并且具有有效的离子强度的分子量，使得第一，第二和后续层独立地包含比单层厚的多个纳米颗粒层。

    Field flow fractionation channel
    10.
    发明授权
    Field flow fractionation channel 失效
    场流分馏通道

    公开(公告)号：US4446015A

    公开(公告)日：1984-05-01

    申请号：US326158

    申请日：1981-11-30

    申请人： Joseph J. Kirkland

    发明人： Joseph J. Kirkland

    IPC分类号： B03B5/00 ,  B04B5/04 ,  B03B5/62

    CPC分类号： B04B5/0442 ,  B03B5/00 ,  B04B2005/045 ,  B04B2005/0464

    摘要： A free floating plastic channel for sedimentation field flow fractionation is suspended in a centrifuge rotor filled with a compensating liquid. The channel is constructed of a plastic central hub assembly fitted with a plastic outer ring preferably having a lower density than the hub. The outer ring contains a shallow channel on its radially inner surface and is interference-fitted to the inner ring to insure a liquid tight seal at zero force field. With the liquid totally surrounding the hub-outer ring assembly, stresses on the plastic parts are essentially equalized even under high force fields and leakage from the channel at the hub-ring interface is greatly reduced.

    摘要翻译： 用于沉淀场流分离的自由浮动塑料通道悬浮在填充有补偿液体的离心机转子中。 该通道由塑料中心轮毂组件构成，该中心轮毂组件装配有优选具有比轮毂低的密度的塑料外圈。 外环在其径向内表面上包含浅通道，并与内环干涉配合，以确保零力场下的液密密封。 当液体完全围绕轮毂外圈组件时，即使在高力场下，塑料部件上的应力基本上相等，并且大大减少了毂环接口处的通道的泄漏。