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76 条记录 (耗时 0.023 秒)

    Chargedasymmetric mosaic membrances
    1.
    发明授权
    Chargedasymmetric mosaic membrances 失效
    带电对称马赛克膜

    公开(公告)号：US5304307A

    公开(公告)日：1994-04-19

    申请号：US801859

    申请日：1991-12-03

    申请人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    发明人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    IPC分类号： B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/14 ,  B01D71/82 ,  B01D13/00

    CPC分类号： B01D67/0093 ,  B01D67/0011 ,  B01D69/02 ,  B01D69/141 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2325/022 ,  B01D2325/20

    摘要： The present invention relates to semipermeable mosaic polymer membranes of asymmetric structure and with a macroscopic distribution of the mosaic-forming anionic and cationic charges (sites). The membranes can be prepared by casting a polymer solution of an optionally charged matrix-forming polymer and at least one precursor polymer, incompatible with the matrix-forming polymer, in a selected solvent, into a film, forming a skin on one side of the film, precipitating the skinned film to form the asymmetric membrane and charging it by chemical reactions to introduce or complete their mosaic structure. These membranes have good permeability for electrolytes, such as salts of mono- or polyvalent inorganic acids, while retaining low molecular weight organic solutes.

    摘要翻译： 本发明涉及不对称结构的半透性镶嵌聚合物膜和马赛克形成阴离子和阳离子电荷（位点）的宏观分布。 膜可以通过将任选带电的基质形成聚合物的聚合物溶液和在选定的溶剂中与基质形成聚合物不相容的至少一种前体聚合物浇铸成膜，从而在 膜，沉淀皮膜以形成不对称膜，并通过化学反应进行充电以引入或完成其镶嵌结构。 这些膜对于电解质具有良好的渗透性，例如单价或多价无机酸的盐，同时保留低分子量的有机溶质。

    Semipermeable composite membranes
    6.
    发明授权
    Semipermeable composite membranes 失效
    半透膜复合膜

    公开(公告)号：US5049282A

    公开(公告)日：1991-09-17

    申请号：US507566

    申请日：1990-04-11

    申请人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    发明人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    IPC分类号： B01D67/00 ,  B01D69/12

    CPC分类号： B01D67/0093 ,  B01D69/125 ,  B01D2323/30

    摘要： Semipermeable composite membranes composed of a porous substrate and at least two layers of film-forming polymers coated thereon are provided, which comprise a first layer of monomeric or polymeric diazonium salts, which have been reacted with themselves and with an at least difunctional compound, and a second layer, which is chemically bonded to the first one, of a cross-linked, ionically charged hydrophilic polymer.The membranes show good mechanical, physical and chemical stabilities and are useful in reverse osmosis and ultrafiltration processes, particularly for desalting solutions of low molecular weight organic compounds.

    摘要翻译： 提供由多孔基材和至少两层涂覆在其上的成膜聚合物组成的半透性复合膜，其包含已经与其自身和至少双官能化合物反应的第一层单体或聚合重氮盐，以及 第二层，其与第一层化学键合，交联的带离子的亲水性聚合物。 膜显示出良好的机械，物理和化学稳定性，并且可用于反渗透和超滤方法，特别是用于低分子量有机化合物的脱盐溶液。

    Solvent-stable semipermeable composite membranes
    7.
    发明授权
    Solvent-stable semipermeable composite membranes 失效
    溶剂稳定的半透膜复合膜

    公开(公告)号：US5032282A

    公开(公告)日：1991-07-16

    申请号：US507567

    申请日：1990-04-11

    申请人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    发明人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Ketraro

    IPC分类号： B01D67/00 ,  B01D69/12 ,  B01D71/42

    CPC分类号： B01D67/0093 ,  B01D69/125 ,  B01D71/42 ,  B01D71/76 ,  B01D2323/30

    摘要： Semipermeable composite membranes which comprise a porous substrate of a homo- or copolymer on the basis of acrylonitrile are provided, which have been cross-linked, and at least two layers of film-forming polymers coated thereon, a first layer of monomeric or polymeric diazonium salts which have been reacted with themselves and with an at least difunctional compound, and a second layer, which is chemically bonded to the first one, of a cross-linked, ionically charged hydrophilic polymer.The membranes show good mechanical, physical and chemical stabilities, preferably solvent stability, and are useful in reverse osmosis and ultrafiltration processes, particularly for desalting solutions of low molecular weight organic compounds.

    摘要翻译： 提供了包含基于丙烯腈的均聚物或共聚物的多孔基材的半透性复合膜，其已经交联，并且至少两层涂覆有成膜聚合物的第一层单体或聚合物重氮 已经与其自身和至少两官能化合物反应的盐，以及与第一层化学键合的交联的带离子的亲水性聚合物的第二层。 膜显示出良好的机械，物理和化学稳定性，优选溶剂稳定性，并且可用于反渗透和超滤方法，特别是用于低分子量有机化合物的脱盐溶液。

    Process and device for separating electrically charged macromolecular compounds by forced-flow membrane electrophoresis
    8.
    发明授权
    Process and device for separating electrically charged macromolecular compounds by forced-flow membrane electrophoresis 失效
    通过强制流膜电泳分离电荷充电的大分子化合物的方法和装置

    公开(公告)号：US5087338A

    公开(公告)日：1992-02-11

    申请号：US435837

    申请日：1989-11-14

    申请人： Mordechai Perry ,  Jack Gilron ,  Reuven Ketraro ,  Charles Linder

    发明人： Mordechai Perry ,  Jack Gilron ,  Reuven Ketraro ,  Charles Linder

    IPC分类号： B01D57/02 ,  C07K1/24 ,  C07K1/26 ,  C07K1/28 ,  C07K14/76 ,  G01N27/447

    CPC分类号： G01N27/44769 ,  B01D57/02 ,  C07K1/24 ,  C07K1/26

    摘要： A process and apparatus for the continuous separation of electrically charged macromolecular compounds, such as proteins, by forced-flow membrane electrophoresis is provided.Said process is conducted in an electrophoretic cell comprising a membrane compartment, divided by a micro- or ultrafiltration membrane into a feed and permeate cell, and electrode compartments being partitioned from the membrane compartment with ion-exchange membranes, which are impermeable to the macromolecular compounds, and have virtually no permeability to salts.The electrophoretic process comprises the steps of recycling a mixed solution of the charged compounds which are dissolved in a separation buffer through the feed cell, subjecting of the solution to a pressure-driven membrane separation, applying an electric field across the membranes and the solution to cause electrophoretic migration of the charged compound and to separate them, and withdrawing the charged compounds thus separated.The process achieves separation of charged compounds having differences of their isoelectric points in a range of as low as 0.1 to 0.2. The process is very useful to remove charged contaminants from the desired compounds.

    Silicon-derived solvent stable membranes
    9.
    发明授权
    Silicon-derived solvent stable membranes 失效
    硅衍生的溶剂稳定膜

    公开(公告)号：US5265734A

    公开(公告)日：1993-11-30

    申请号：US986753

    申请日：1992-12-08

    申请人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Katraro

    发明人： Charles Linder ,  Mara Nemas ,  Mordechai Perry ,  Reuven Katraro

    IPC分类号： B01D69/02 ,  B01D69/12 ,  B01D71/42 ,  B01D71/70 ,  B01D61/02 ,  B01D61/14

    CPC分类号： B01D69/02 ,  B01D69/125 ,  B01D71/42 ,  B01D71/70

    摘要： A composite membrane comprises a substrate made from a polymer selected from copolymers and homopolymers of ethylenically unsaturated nitriles, which substrate has preferably first been treated with a pore protector in absence of curing agents and catalysts therefor, prior to applying as the final coating a silicone layer, which is crosslinked. The pore protector, which may be, for example, a hydroxy-terminated polysiloxane, particularly a silanol-terminated polysiloxane, serves the dual purpose of preventing the pores from collapsing, when the support is dried during the curing of the silicone layer, and of preventing passage of the coating material deeply into the pores and thus also preventing an undue reduction of the flux of the finished coated membrane. Such composite membranes include solvent stable membranes which swell to an extent of no more than about 10% when immersed in various organic solvents, and their mixtures with each other and/or water.

    摘要翻译： 复合膜包括由选自共聚物和烯键式不饱和腈的均聚物的聚合物制成的基材，该基材优选首先在没有固化剂和催化剂的情况下首先用孔保护剂处理，然后在作为最终涂层施加硅树脂层 ，其是交联的。 孔保护剂可以是例如羟基封端的聚硅氧烷，特别是硅烷醇封端的聚硅氧烷，其用途是防止当硅氧烷层固化期间载体干燥时孔隙塌陷的双重目的，以及 防止涂层材料深深地渗透到孔中，从而也防止成品涂布膜的焊剂过度减少。 这种复合膜包括当浸入各种有机溶剂中时其膨胀至不超过约10％程度的溶剂稳定的膜，以及它们彼此的混合物和/或水。

    Solvent stable membranes
    10.
    发明授权
    Solvent stable membranes 失效
    溶剂稳定膜

    公开(公告)号：US5039421A

    公开(公告)日：1991-08-13

    申请号：US415156

    申请日：1989-10-02

    申请人： Charles Linder ,  Mordechai Perry ,  Mara Nemas ,  Reuven Katraro

    发明人： Charles Linder ,  Mordechai Perry ,  Mara Nemas ,  Reuven Katraro

    IPC分类号： B01D67/00 ,  B01D69/12 ,  B01D71/42

    CPC分类号： B01D67/0093 ,  B01D69/125 ,  B01D71/42 ,  B01D71/76 ,  B01D2323/30

    摘要： A composite membrane for separating at least one dissolved or suspended component from a liquid phase, and characterized by solvent stability, comprises:(A) a substrate microfiltration, ultrafiltration or reverse osmosis membrane which has been initially formed from at least one member selected from non-crosslinked acrylonitrile homopolymers and copolymers, and non-crosslinked substituted acrylonitrile homopolymers and copolymers, and which has been subjected to at least one in situ crosslinking reaction; and(B) superimposed upon the substrate membrane, at least one coating including at least one component selected from hydrophilic monomers containing reactive functions, hydrophilic oligomers containing reactive functions and hydrophilic polymers containing reactive functions, such reactive functions having been subjected to a post-coating crosslinking reaction.

    摘要翻译： 一种用于从液相中分离至少一种溶解或悬浮组分的复合膜，其特征在于溶剂稳定性，包括：（A）基材微量过滤，超滤或反渗透膜，其最初由至少一种选自非 - 交联的丙烯腈均聚物和共聚物，以及非交联的取代的丙烯腈均聚物和共聚物，并且已经进行了至少一个原位交联反应; 和（B）叠加在基材膜上的至少一种包含至少一种选自包含反应性官能团的亲水性单体的成分，含有反应性官能团的亲水性低聚物和含有反应性官能团的亲水性聚合物的涂层， 交联反应。