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    POROUS MEMBRANES WITH MULTIPLE ZONES HAVING DIFFERENT PORE SIZES
    1.
    发明申请
    POROUS MEMBRANES WITH MULTIPLE ZONES HAVING DIFFERENT PORE SIZES 审中-公开
    具有不同孔径尺寸的多个区域的多孔膜

    公开(公告)号：US20110297612A1

    公开(公告)日：2011-12-08

    申请号：US13142436

    申请日：2009-12-28

    申请人： Jonathan F. Hester ,  James S. Mrozinski ,  Derek J. Dehn

    发明人： Jonathan F. Hester ,  James S. Mrozinski ,  Derek J. Dehn

    IPC分类号： B01D65/00 ,  B29C44/06

    CPC分类号： B01D69/122 ,  B01D67/002 ,  B01D67/0086 ,  B01D69/02 ,  B01D71/06 ,  B01D71/26 ,  B01D2323/00 ,  B01D2323/18 ,  B01D2323/42 ,  B01D2325/02 ,  B01D2325/08 ,  B29C48/08 ,  B29C48/21 ,  B29C48/30 ,  B29C48/307 ,  B29C55/005 ,  B29K2105/0005 ,  B29K2105/04 ,  B29L2031/755

    摘要： A porous membrane that includes a first zone, the first zone including a crystallizable polymer; and a first nucleating agent, the first nucleating agent having a first concentration in the first zone, the first zone having a first average pore size; and a second zone, the second zone including a crystallizable polymer; and a second nucleating agent, the second nucleating agent having a second concentration in the second zone, the second zone having a second average pore size, wherein the crystallizable polymer is the same in the first zone and second zone, wherein the first average pore size is not the same as the second average pore size, wherein the first nucleating agent and the second nucleating agent are the same or different, wherein the first concentration and the second concentration agent are the same or different and with the proviso that the first nucleating agent and the first concentration are not the same as the second nucleating agent and the second concentration. Methods of making membranes are also disclosed.

    摘要翻译： 一种多孔膜，其包括第一区域，所述第一区域包括可结晶聚合物; 和第一成核剂，所述第一成核剂在所述第一区域具有第一浓度，所述第一区域具有第一平均孔径; 和第二区域，所述第二区域包括可结晶聚合物; 和第二成核剂，所述第二成核剂在所述第二区域具有第二浓度，所述第二区域具有第二平均孔径，其中所述可结晶聚合物在所述第一区域和第二区域中相同，其中所述第一平均孔径 与第二平均孔径不同，其中第一成核剂和第二成核剂相同或不同，其中第一浓度和第二浓缩剂相同或不同，条件是第一成核剂 并且第一浓度与第二成核剂和第二浓度不相同。 还公开了制备膜的方法。

    Polymeric membranes and other polymer articles having desired surface characteristics and method for their preparation
    5.
    发明授权
    Polymeric membranes and other polymer articles having desired surface characteristics and method for their preparation 有权
    聚合物膜和具有所需表面特性的其它聚合物制品及其制备方法

    公开(公告)号：US06413621B1

    公开(公告)日：2002-07-02

    申请号：US09258526

    申请日：1999-02-26

    申请人： Anne M. Mayes ,  David G. Walton ,  Jonathan F. Hester

    发明人： Anne M. Mayes ,  David G. Walton ,  Jonathan F. Hester

    IPC分类号： B01D6700

    CPC分类号： C08J3/005 ,  B01D67/0011 ,  B01D69/141 ,  B01D71/34 ,  B01D71/40 ,  B01D71/82 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2325/38 ,  B01J45/00 ,  Y10T428/24942 ,  Y10T428/249953 ,  Y10T428/249961 ,  Y10T428/249978 ,  Y10T428/31 ,  Y10T428/31928 ,  Y10T428/31935

    摘要： Polymeric articles, including membranes, with surfaces having a desired chemical functionality are created by surface segregation of a branched component blended with a compatible, matrix base component, the branched component having the desired chemical functionality. In particular, hydrophilic surfaces are created via surface segregation of a branched hydrophilic copolymer blended into a polymer matrix. The use of branched molecular architecture provides a thermodynamic mechanism for the segregation of the hydrophilic species to the surface and a means for achieving a high surface coverage of the hydrophilic moiety. The branched hydrophilic copolymer can be defined by a random copolymer including two or more methacrylate or acrylate monomers, at least one of which features a short hydrophilic side chain, such as a polyethylene glycol side chain. The branched hydrophilic copolymer is compatible, and well-entangled, with the acrylate polymer matrix.

    摘要翻译： 通过与相容的基质基质组分共混的支化组分的表面分离产生具有所需化学官能度的表面的聚合制品，包括膜，所述支化组分具有所需的化学官能度。 特别地，亲水性表面是通过共聚到聚合物基质中的支化亲水共聚物的表面偏析产生的。 支链分子结构的使用为亲水性物质与表面的分离提供了一种热力学机制，也是实现亲水部分高表面覆盖度的手段。 支链亲水共聚物可以通过包括两种或更多种甲基丙烯酸酯或丙烯酸酯单体的无规共聚物来限定，其中至少一种具有短亲水侧链如聚乙二醇侧链。 支链亲水共聚物与丙烯酸酯聚合物基质相容并且良好缠结。