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    High ionic conductance ion exchange membranes and their preparation
    1.
    发明授权
    High ionic conductance ion exchange membranes and their preparation 失效
    高离子电导离子交换膜及其制备

    公开(公告)号：US5510394A

    公开(公告)日：1996-04-23

    申请号：US355935

    申请日：1994-12-14

    申请人： Russell B. Hodgdon

    发明人： Russell B. Hodgdon

    IPC分类号： C08J5/22

    CPC分类号： C08J5/2243 ,  C08J5/225 ,  C08J2327/00

    摘要： It has been discovered (Examples 4, 11 and 17) that certain desirable films will not absorb a sufficient amount of certain desirable, polymerizable monomers as to result in interpolymer membranes having desirable ion exchange properties after polymerization of any absorbed such monomers and after any subsequent conversion of such absorbed and polymerized monomers into ionizable moieties. It has also been discovered that if a predetermined amount of plasticizer, extractable by such monomers, is incorporated into such films, then the latter will absorb a sufficient amount of such monomers as to result (after polymerization of such monomers) in interpolymer membranes having desirable ion exchange properties. Examples of preferred monomers include the polar (meth) acryloxy and (meth) acrylamido monomers 2-(methacryloxy) ethane sulfonic acid, 2-(acrylamido)-2-methyl propane sulfonic acid, N-(2-methacryloxy ethyl)-N,N-dimethyl amine, N-(3-methacrylamido-propyl)-N,N-dialkyl-N-methyl ammonium halides and N-(2-methacryloxy ethyl)-N,N,N-trimethyl ammonium chloride. Such monomers may be mixed with a minor amount of crosslinking monomer such as divinyl benzene, ethylene glycol dimethacrylate and trimethylol propane trimethacrylate. Preferably any amine moieties in the resulting interpolymer membranes are converted to quaternary ammonium groups.

    摘要翻译： 已经发现（实施例4,11和17）某些所需的膜不会吸收足够量的某些所需的可聚合单体，导致互聚物膜在任何吸收的这些单体聚合之后具有所需的离子交换性能 将这种吸收和聚合的单体转化成可离子化部分。 还已经发现，如果将这样的单体可提取的预定量的增塑剂引入这种膜中，则后者将吸收足够量的这样的单体，使得在具有所需的互聚物膜（导致这些单体聚合之后） 离子交换性能。 优选单体的实例包括极性（甲基）丙烯酰氧基和（甲基）丙烯酰胺基单体2-（甲基丙烯酰氧基）乙烷磺酸，2-（丙烯酰胺基）-2-甲基丙磺酸，N-（2-甲基丙烯酰氧基乙基） N-（3-甲基丙烯酰胺基 - 丙基）-N，N-二烷基-N-甲基卤化铵和N-（2-甲基丙烯酰氧基乙基）-N，N，N-三甲基氯化铵。 这些单体可以与少量的交联单体如二乙烯基苯，乙二醇二甲基丙烯酸酯和三羟甲基丙烷三甲基丙烯酸酯混合。 优选将所得互聚物膜中的任何胺部分转化为季铵基团。

    High ion exchange capacity polyelectrolytes having high crosslink densities and caustic stability
    2.
    发明授权
    High ion exchange capacity polyelectrolytes having high crosslink densities and caustic stability 失效
    具有高交联密度和苛性碱稳定性的高离子交换容量聚电解质

    公开(公告)号：US5284879A

    公开(公告)日：1994-02-08

    申请号：US857910

    申请日：1992-03-26

    申请人： Russell B. Hodgdon ,  Russell J. MacDonald ,  Samuel S. Alexander

    发明人： Russell B. Hodgdon ,  Russell J. MacDonald ,  Samuel S. Alexander

    IPC分类号： B01J41/14 ,  C08F12/34 ,  C08J5/22

    CPC分类号： B01J41/14 ,  C08F12/34 ,  C08J5/2256 ,  C08J2333/12

    摘要： A water or alcohol-water soluble divinyl monomer having anion exchange group(s) and a free exchangable anion is disclosed. These bifunctional divinyl monomers are capable of forming ion exchange materials (membranes and ion exchange resin beads) upon polymerization with added vinyl catalysts which convert them into insoluble and infusible polymers. They are also capable of being co-polymerized with other ion exchange (ion containing) monomers to give unique anion exchange resins or membranes.

    摘要翻译： 公开了具有阴离子交换基团和自由交换阴离子的水或醇 - 水溶性二乙烯基单体。 这些双功能二乙烯基单体在加入乙烯基催化剂聚合时能够形成离子交换材料（膜和离子交换树脂珠），将其转化为不溶性和不可渗透的聚合物。 它们还能够与其他离子交换（含离子）单体共聚以提供独特的阴离子交换树脂或膜。

    Aliphatic anion exchange polymeric membranes having improved resistance to fouling
    5.
    发明授权
    Aliphatic anion exchange polymeric membranes having improved resistance to fouling 失效
    具有改善的耐结垢性能的脂肪族阴离子交换聚合物膜

    公开(公告)号：US5137925A

    公开(公告)日：1992-08-11

    申请号：US667508

    申请日：1991-03-11

    申请人： Russell B. Hodgdon

    发明人： Russell B. Hodgdon

    IPC分类号： C08J5/22

    CPC分类号： C08J5/2218

    摘要： Ion exchange membranes of the all-aliphatic structural variety, are made from plastisol films of polyvinyl chloride (PVC) and its copolymers coupled through the nitrogen atom with an aliphatic vinyl monomer containing a tertiary nitrogen atom or a polymer or copolymer of such a monomer such membrane subsequently, quaternized with an alkyl halide.

    摘要翻译： 全脂族结构品种的离子交换膜由聚氯乙烯（PVC）的增塑溶胶膜及其通过氮原子与通过氮原子偶联的共聚物与含有叔氮原子的脂族乙烯基单体或这种单体的聚合物或共聚物形成 膜随后用烷基卤季铵化。

    Novel bipolar membranes and process of manufacture
    7.
    发明授权
    Novel bipolar membranes and process of manufacture 失效
    新型双极膜及其制造工艺

    公开(公告)号：US4851100A

    公开(公告)日：1989-07-25

    申请号：US189263

    申请日：1988-05-02

    申请人： Russell B. Hodgdon ,  Samuel S. Alexander

    发明人： Russell B. Hodgdon ,  Samuel S. Alexander

    IPC分类号： C08J5/22

    CPC分类号： C08J5/2275 ,  C08J2309/02 ,  C08J2353/02

    摘要： Improved bipolar membranes comprised of two laminates, one a long term base stable thermoset anion exchange membrane and the other a strongly solvent bonded (solvent cast) thermoplastic water insoluble cation exchange membrane. The membranes have a useful level of acid and base efficiencies at low water splitting voltages, along with high current densities.

    摘要翻译： 改进的双极膜由两个层压板组成，一个是长期碱稳定的热固性阴离子交换膜，另一个是强溶剂粘合（溶剂浇铸）热塑性水不溶性阳离子交换膜。 膜在低水分离电压以及高电流密度下具有有用的酸和碱效率水平。

    Electrodialysis membranes of high interstitial molality based upon methacrylate ester derivatives
    8.
    发明授权
    Electrodialysis membranes of high interstitial molality based upon methacrylate ester derivatives 失效
    基于甲基丙烯酸酯衍生物的高间质摩尔浓度的电渗析膜

    公开(公告)号：US4231855A

    公开(公告)日：1980-11-04

    申请号：US16994

    申请日：1979-03-02

    申请人： Russell B. Hodgdon ,  Samuel S. Alexander

    发明人： Russell B. Hodgdon ,  Samuel S. Alexander

    IPC分类号： B01D69/02 ,  C08J5/22 ,  B01D13/02

    CPC分类号： B01D61/46 ,  B01D71/48 ,  B01D71/52 ,  C08J5/2231 ,  C08J2333/12

    摘要： This invention relates to cross-linked copolymers of methacrylate esters containing ionogenic functional groups capable of being converted into high efficiency electro-dialysis membranes. Such totally aliphatic polymer membranes have been found to give electrical resistances which can be as low as one half that of membranes previously synthesized as well as higher interstitial molality. This reduced resistance, in concert with a high degree of chemical and physical stability enables water desalination by electrodialysis to be performed over longer periods of useful membrane life and at a lower expenditure of electrical energy per thousand gallons of water desalted.

    摘要翻译： 本发明涉及能够转化成高效电渗析膜的含有离子发生官能团的甲基丙烯酸酯的交联共聚物。 已经发现这样的全脂族聚合物膜具有可以低达先前合成的膜的一半以及较高间隙的摩尔数的电阻。 这种降低的电阻，与高度的化学和物理稳定性协调一致，可以通过电渗析在较长时间的有用膜寿命中进行水脱盐，并且以每千加仑的水脱盐的电能消耗较少。

    Polyamine-polyamide composite nanofiltration membrane for water softening
    9.
    发明授权
    Polyamine-polyamide composite nanofiltration membrane for water softening 失效
    聚胺聚酰胺复合纳滤膜水软化

    公开(公告)号：US5152901A

    公开(公告)日：1992-10-06

    申请号：US584555

    申请日：1990-09-14

    申请人： Russell B. Hodgdon

    发明人： Russell B. Hodgdon

    IPC分类号： B01D69/12

    CPC分类号： B01D69/125

    摘要： A thin film composite (TPC) ultrafilter/hyperfilter water softening membrane on a microporous substrate is produced by an interfacial polymerization reaction between (1) an aqueous phase comprising a blend of water soluble and water dispersible compounds, the former containing piperazine and polyamines, the latter using a chlorine or other oxidant reacting compound which protects the resulting membrane from damage by any chlorine present and (2) an organic phase comprising polyfunctional agents capable of reacting and/or polmerizing with one or more of the ingredients of said aqueous phase.

    摘要翻译： 通过（1）包含水溶性和水分散性化合物的混合物的水相（前者含有哌嗪和多胺）之间的界面聚合反应产生微孔基材上的薄膜复合（TPC）超滤/超滤水软化膜， 后者使用氯或其它氧化剂反应化合物，其保护所得膜免受任何存在的氯的损害，和（2）包含能够与所述水相的一种或多种成分反应和/或聚合的多官能试剂的有机相。