Charged porous polymeric membrane with high void volume
    4.
    发明授权
    Charged porous polymeric membrane with high void volume 有权
    具有高空隙体积的多孔聚合物膜

    公开(公告)号:US09302228B2

    公开(公告)日:2016-04-05

    申请号:US14193843

    申请日:2014-02-28

    申请人: Pall Corporation

    摘要: Membranes comprising a single layer having a first microporous surface; a second microporous surface; and, a porous bulk between the first microporous surface and the second microporous surface, wherein the bulk comprises a first set of pores having outer rims, prepared by removing introduced dissolvable silica nanoparticles, the first set of pores having a first controlled pore size, and a second set of pores connecting the outer rims of the first set of pores, the second set of pores having a second controlled pore size, and a polymer matrix supporting the first set of pores, wherein the first controlled pore size is greater than the second controlled pore size, and wherein the first and/or second microporous surface comprises a neutrally charged, a negatively charged, or a positively charged, surface; filters including the membranes, and methods of making and using the membranes, are disclosed.

    摘要翻译: 包括具有第一微孔表面的单层的膜; 第二微孔表面; 以及在所述第一微孔表面和所述第二微孔表面之间的多孔体,其中所述本体包括具有外缘的第一组孔,其通过除去引入的可溶解二氧化硅纳米颗粒而制备,所述第一组孔具有第一受控孔径,以及 连接第一组孔的外缘的第二组孔,具有第二受控孔尺寸的第二组孔,以及支撑第一组孔的聚合物基质,其中第一受控孔径大于第二组孔 并且其中所述第一和/或第二微孔表面包括中性带电荷,带负电荷或带正电荷的表面; 公开了包括膜的过滤器以及制造和使用膜的方法。

    METHOD FOR PRODUCING POROUS POLYIMIDE FILM, POROUS POLYIMIDE FILM AND SEPARATOR USING SAME
    5.
    发明申请
    METHOD FOR PRODUCING POROUS POLYIMIDE FILM, POROUS POLYIMIDE FILM AND SEPARATOR USING SAME 有权
    生产多孔聚酰亚胺膜,多孔聚酰亚胺膜和使用其的分离器的方法

    公开(公告)号:US20160072110A1

    公开(公告)日:2016-03-10

    申请号:US14785391

    申请日:2014-03-31

    IPC分类号: H01M2/16 H01M10/052 H01M2/14

    摘要: A method for producing a porous polyimide film comprises: forming a first un-burned composite film wherein the first film is formed on a substrate using a first varnish that contains (A1) a polyamide acid or a polyimide and (B1) fine particles at a volume ratio (A1):(B1) of from 19:81 to 45:65; forming a second un-burned composite film wherein the second film is formed on the first film using a second varnish that contains (A2) a polyamide acid or a polyimide and (B2) fine particles at a volume ratio (A2):(B2) of from 20:80 to 50:50 and has a lower fine particle content ratio than the first varnish; burning wherein an un-burned composite film composed of the first film and the second film is burned, thereby obtaining a polyimide-fine particle composite film; and a fine particle removal step wherein the fine particles are removed from the polyimide-fine particle composite film.

    摘要翻译: 一种多孔聚酰亚胺薄膜的制造方法,其特征在于,使用含有(A1)聚酰胺酸或聚酰亚胺的第一清漆和(B1)细小颗粒形成第一未烧成的复合膜, 体积比(A1):( B1)从19:81到45:65; 形成第二未烧制复合膜,其中使用包含(A2)聚酰胺酸或聚酰亚胺的第二清漆和(B2)体积比(A2):(B2)的细颗粒在第一膜上形成第二膜, 为20:80至50:50,并且具有比第一清漆更低的微粒含量比; 燃烧,其中由第一膜和第二膜组成的未燃烧的复合膜被燃烧,从而获得聚酰亚胺 - 细颗粒复合膜; 以及从聚酰亚胺 - 微粒复合膜除去微粒的微粒除去工序。

    Polymers, polymer membranes and methods of producing the same
    7.
    发明授权
    Polymers, polymer membranes and methods of producing the same 有权
    聚合物,聚合物膜及其制备方法

    公开(公告)号:US08926733B2

    公开(公告)日:2015-01-06

    申请号:US13696643

    申请日:2011-05-13

    摘要: A method for preparing a polymeric material includes: providing a polymeric matrix having at least one polymer and at least one porogen; and degrading the at least one porogen at a temperature T≦1.1 Tg, where Tg is a glass transition temperature of the polymeric matrix. The degrading step includes exposing the polymeric matrix to thermal degradation, chemical degradation, electrical degradation and/or radiation degradation, wherein the polymeric material has a permeability at least 1.2 times a permeability of the polymeric matrix for a gas, and a selectivity of the polymeric material is at least 0.35 times a selectivity of the polymeric matrix for a gas pair. The method preferably provides gas separation membranes that exceed Robeson's upper bound relationship for at least one gas separation pair. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.

    摘要翻译: 制备聚合材料的方法包括:提供具有至少一种聚合物和至少一种致孔剂的聚合物基质; 并在温度T< IlE下降解至少一种致孔剂; 1.1 Tg,其中Tg是聚合物基质的玻璃化转变温度。 降解步骤包括将聚合物基质暴露于热降解,化学降解,电降解和/或辐射降解,其中聚合物材料具有至少1.2倍的聚合物基质对于气体的渗透性,并且聚合物的选择性 材料是气体对的聚合物基质的选择性的至少0.35倍。 该方法优选提供超过用于至少一个气体分离对的Robeson上限关系的气体分离膜。 还描述了新颖的聚合物材料,气体分离膜和流体组分分离方法。

    Stimuli-responsive polymer membrane and method of making the same
    9.
    发明授权
    Stimuli-responsive polymer membrane and method of making the same 有权
    刺激响应聚合物膜及其制备方法

    公开(公告)号:US08829062B1

    公开(公告)日:2014-09-09

    申请号:US11784764

    申请日:2007-04-09

    摘要: The object of the present invention is concerned with a stimuli-responsive polymer membrane and method of making the same. The method and making the membrane is a new one The entire body of the responsive membrane is a gel. Gels are used as membranes because they are permeable-swollen network. This disclosure discusses a new combination of cylindrical pores in a swollen network. When the network swells or shrinks the cylindrical pores open or close. Thus, inside the network, one can introduce ligands, function groups which due to specific interaction with some signaling molecules in the surrounding environment can cause swelling or shrinking the membrane and this way they open or close pores. With cylindrical pores in a gel there is the ability to regulate pore size in a broad range and an ability to arrange response by adding some functional groups inside the gel body.

    摘要翻译: 本发明的目的在于涉及一种刺激响应型聚合物膜及其制造方法。 膜的制造方法是一个新的。响应膜的整个体是凝胶。 凝胶用作膜,因为它们是可渗透的网络。 本公开讨论了肿胀网络中的圆柱形孔的新组合。 当网络膨胀或收缩时,圆柱孔打开或关闭。 因此,在网络内部,可以引入配体,由于与周围环境中的一些信号分子的特异性相互作用可引起膜膨胀或收缩的功能团,并且以这种方式打开或闭合孔。 在凝胶中具有圆柱形孔,可以通过在凝胶体内加入一些官能团来调节宽范围的孔径和排列响应的能力。