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1.发明申请公开(公告)号：US20180043344A1
公开(公告)日：2018-02-15
申请号：US15728694
申请日：2017-10-10
CPC分类号： B01J39/05 , B01J39/04 , B01J39/20 , B01J47/12 , C08J5/22 , C08J5/2281 , C08J2327/18 , C08J2329/10 , C08J2367/02 , C25B1/46 , C25B9/08 , C25B13/02 , C25B13/08 , D02G3/04 , D02G3/36
摘要： To provide a process for producing an ion exchange membrane for electrolysis which has a low membrane resistance and which is capable of reducing the electrolysis voltage during the electrolysis, even if the membrane strength is increased, an ion exchange membrane for electrolysis, a precursor membrane of an ion exchange membrane for electrolysis, and an electrolysis apparatus.In a fluorinated polymer having groups convertible to ion exchange groups, a reinforcing fabric 20A formed by weaving covered yarns 21 each comprising a reinforcing fabric 22 and a sacrificial material covering at least a portion of the outer peripheral surface of the reinforcing yarn 22, to produce a precursor membrane of an ion exchange membrane, and from the precursor membrane, at least a portion of the sacrificial material in the reinforcing fabric is eluted to form a reinforcing material and at the same time, the groups convertible to ion exchange groups are converted to ion exchange groups, to produce an ion exchange membrane for electrolysis.
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2.发明申请公开(公告)号：US20170218527A1
公开(公告)日：2017-08-03
申请号：US15491371
申请日：2017-04-19
IPC分类号： C25B1/46 , C25B9/10 , B01J39/05 , C08J5/22 , B01J47/12 , C08F216/14 , C08F214/26 , C25B13/08 , B01J39/20
CPC分类号： C25B1/46 , B01J39/05 , B01J39/20 , B01J47/12 , C08F214/262 , C08F216/1416 , C08F216/1466 , C08F2216/1475 , C08J5/225 , C08J5/2281 , C08J2327/18 , C08J2329/10 , C25B9/10 , C25B13/08
摘要： To provide an ion exchange membrane for alkali chloride electrolysis which has high membrane strength and low membrane resistance, thereby capable of reducing the electrolysis voltage during alkali chloride electrolysis. In this ion exchange membrane (1) for alkali chloride electrolysis, a reinforcing material 20 formed by weaving reinforcing yarns 22 and sacrificial yarns 24 is disposed in a layer (S) 14, and layer (S) 14 has elution portions 28 formed by elution of at least portions of the sacrificial yarns 24. In a cross section perpendicular to reinforcing yarns of the warp, the average distance (d1) from the center of a reinforcing yarn 22 to the center of the adjacent reinforcing yarn 22, the total area (P) obtained by adding the cross-sectional area of an elution portion 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution portion 28, the number (n) of elution portions between adjacent reinforcing yarns 22, and the ion exchange capacity of a layer (Sa) located on the most anode side in the layer (S) 14 during alkali chloride electrolysis, are controlled to be within specific ranges, respectively.
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3.发明申请公开(公告)号：US20170218526A1
公开(公告)日：2017-08-03
申请号：US15491272
申请日：2017-04-19
CPC分类号： C25B1/46 , B01D69/10 , B01D71/32 , B01D71/82 , C08J5/2237 , C08J2327/12 , C25B9/10 , C25B13/08
摘要： To provide an ion exchange membrane for alkali chloride electrolysis for which membrane strength is increased while membrane resistance is reduced to reduce electrolysis voltage during alkali chloride electrolysis and which prevents peeling between layers (S) and a layer (C). The ion exchange membrane for alkali chloride electrolysis comprises a layer (C) which comprises a fluorinated polymer having carboxylic acid functional groups, at least two layers (S) which comprise a fluorinated polymer having sulfonic acid functional groups, and a reinforcing material, wherein the layers (S) include a layer (Sa) and a layer (Sb), the layer (Sa) is a layer which is adjacent to the layer (C), the layer (Sb) is a layer which is not adjacent to the layer (C), the reinforcing material is disposed in the layer (Sb) substantially in parallel to the layer (Sb) in a state not in contact with the layer (Sa), and the ion exchange capacity of the layer (Sa) is lower than the ion exchange capacity of the layer (Sb).
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公开(公告)号：US20160279627A1
公开(公告)日：2016-09-29
申请号：US15173916
申请日：2016-06-06
发明人： Hiromitsu KUSANO , Takayuki Kaneko
摘要： To provide a method for producing a fluorinated cation exchange membrane, by which a fluorinated cation exchange membrane having a high effect to suppress attachment of the gas to the surface on the cathode side and having an excellent resistance to dropping of inorganic particles from a gas-releasing layer provided on the cathode side can be obtained.A method for producing a fluorinated cation exchange membrane 1 for electrolysis comprising, on at least the cathode side, a layer (α1) 12 containing a perfluorocarbon polymer (A) having carboxylic acid groups or precursor groups of carboxylic acid groups, and a gas-releasing layer (α2) 10 provided on the cathode side of the layer (α1) 12, which comprises applying to the surface of the layer (α1) 12 a coating liquid containing inorganic particles having an average secondary particle size of from 0.5 to 1.5 μm, a binder and a dispersion medium in a mass ratio of the binder to the total mass of the inorganic particles and the binder of from 0.15 to 0.3, to form the gas-releasing layer (α2) 10.
摘要翻译： 一种电解用氟化阳离子交换膜1的制造方法，至少在阴极侧包含含有具有羧酸基或羧酸基前体基的全氟碳聚合物（A）的层（α1）12， 设置在层（α1）12的阴极侧的脱模层（α2）10，其包括向层（α1）12的表面施加含有平均二次粒径为0.5〜1.5μm的无机粒子的涂布液 ，粘合剂和粘合剂的质量比相对于无机颗粒和粘合剂的总质量的粘合剂和分散介质为0.15〜0.3，以形成气体释放层（α2）10。
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5.发明申请公开(公告)号：US20170313836A1
公开(公告)日：2017-11-02
申请号：US15654124
申请日：2017-07-19
CPC分类号： C08J5/2281 , B01J39/20 , B01J47/12 , C01B7/03 , C08J5/2237 , C08J2427/18 , C25B1/46 , C25B9/00 , C25B13/02 , C25B13/08
摘要： To provide an ion exchange membrane for alkali chloride electrolysis which has a low membrane resistance and which is capable of reducing the electrolysis voltage during the alkali chloride electrolysis, while increasing the membrane strength.An ion exchange membrane 1 for alkali chloride electrolysis wherein a reinforcing material 20 obtained by weaving with reinforcing yarns 22 and sacrificial yarns 24 is embedded in a fluoropolymer having ion exchange groups, the ion exchange membrane 1 comprises elution holes (28) formed by eluting at least a portion of a material of the sacrificial yarns 24, and in a cross section perpendicular to the length direction of the yarns, the total area (S) obtained by adding the cross-sectional area of an elution hole 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution hole 28 is from 500 to 1,200 μm2, and the number (n) of elution holes 28 between adjacent reinforcing yarns 22 is at least 10.
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6.发明申请CATION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING POTASSIUM HYDROXIDE AQUEOUS SOLUTION 审中-公开交换膜和生产氢氧化钾水溶液的方法公开(公告)号：US20170029585A1
公开(公告)日：2017-02-02
申请号：US15291121
申请日：2016-10-12
CPC分类号： C08J5/225 , B01J39/04 , B01J39/20 , B01J47/12 , C01D1/04 , C08F8/44 , C08F214/262 , C08J2327/12 , C08J2327/14 , C08J2329/10 , C25B1/16 , C25B9/08 , C25B13/08
摘要： To provide a cation exchange membrane which is less susceptible to swelling or elongation during electrolysis of a potassium chloride aqueous solution even without permitting water absorption or swelling immediately prior to mounting it in an electrolyzer, and a method whereby it possible to stably produce a potassium hydroxide aqueous solution without necessity to conduct an operation for water absorption or swelling immediately prior to mounting the membrane in the electrolyzer. A cation exchange membrane comprising a polymer having cation exchange groups, wherein in cations (100 mol %) contained in the cation exchange membrane, the total of potassium ions and sodium ions is at least 99 mol %, and in the total (100 mol %) of potassium ions and sodium ions contained in the cation exchange membrane, the potassium ions are 80-98 mol % and the sodium ions are 20-2 mol %,
摘要翻译： 提供一种阳离子交换膜，即使在电解槽中将氯化钾水溶液电解之前也不会立即吸水或溶胀，电解过程中不易溶胀或伸长的阳离子交换膜，以及可以稳定地生产氢氧化钾 水溶液，而不必在将膜安装在电解槽中之前立即进行吸水或溶胀的操作。 一种阳离子交换膜，其包含具有阳离子交换基团的聚合物，其中，阳离子交换膜中所含的阳离子（100摩尔％）中，钾离子和钠离子的总和为99摩尔％以上，总计（100摩尔％ ）阳离子交换膜中含有的钾离子和钠离子，钾离子为80-98mol％，钠离子为20-2mol％
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