Electrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly
    11.
    发明授权
    Electrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly 有权
    用于聚合物电解质燃料电池的电解质聚合物,其生产方法和膜 - 电极组装

    公开(公告)号:US07902311B2

    公开(公告)日:2011-03-08

    申请号:US12329119

    申请日:2008-12-05

    IPC分类号: C08F16/24

    摘要: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.

    摘要翻译: 提供一种由具有磺酸基团的全氟化聚合物制成的聚合物电解质燃料电池用电解质聚合物,其特征在于,将0.1g聚合物浸入50g含3%过氧化氢水溶液的芬顿试剂溶液 和200ppm二价铁离子在40℃下反应16小时,溶液中检出的洗脱氟离子的量不超过浸渍聚合物中氟的总量的0.002%。 本发明的电解质聚合物具有非常少的不稳定的端基并且具有优异的耐久性,因此适合作为构成聚合物电解质燃料电池的电解质膜的聚合物和包含在催化剂层中的聚合物。

    Ion exchange polymer dispersion, process for its production and its use
    12.
    发明授权
    Ion exchange polymer dispersion, process for its production and its use 有权
    离子交换聚合物分散体,其生产工艺及其应用

    公开(公告)号:US07582713B2

    公开(公告)日:2009-09-01

    申请号:US11030295

    申请日:2005-01-07

    IPC分类号: C08F12/30

    摘要: A thickened ion exchange polymer dispersion is obtained by applying ultrasonic vibration or a shearing force to an ion exchange polymer dispersion having a fluorinated polymer having sulfonic acid groups as an ion exchange polymer uniformly dispersed in a dispersion medium so that the viscosity of the dispersion at 25° C. at a shear rate of 10 (1/s) increases 2-2000 times in a thickening step. When formed into a membrane, the dispersion can forms an ion exchange membrane having a uniform and small thickness, high strength, which is free from cracking and shows constant swelling in water and steam. Further, a layer formed by applying a coating solution containing this dispersion and a catalyst powder comprising catalyst metal particles and a carbon support loaded with the catalyst metal particles to a substrate can be used to prepare a membrane-electrode assembly as a catalyst layer for at least one of the cathode and the anode by providing the catalyst layer adjacently to an ion exchange membrane. Because the catalyst layer is highly strong, has few defects and is excellently smooth, a high-performance membrane-electrode assembly for solid polymer electrolyte fuel cells can be obtained.

    摘要翻译: 通过对具有磺酸基的氟化聚合物作为离子交换聚合物均匀分散在分散介质中的离子交换聚合物分散体施加超声波振动或剪切力,使得分散体在25℃下的粘度 在10(1 / s)的剪切速率下,在增稠步骤中增加2-2000次。 当形成膜时,分散体可以形成具有均匀且小的厚度,高强度的离子交换膜,其没有破裂并且在水和蒸汽中显示恒定的溶胀。 此外,可以使用通过将含有该分散体的涂布溶液和包含催化剂金属颗粒的催化剂粉末和负载有催化剂金属颗粒的碳载体的催化剂粉末涂布到基板上而形成的层,以制备作为催化剂层的膜 - 电极组件 通过相对于离子交换膜提供催化剂层,阴极和阳极中的至少一个。 由于催化剂层强度高,缺点少,光滑性好,因此可以得到固体高分子电解质燃料电池用高性能膜 - 电极组件。

    Apparatus for producing deionized water
    13.
    发明授权
    Apparatus for producing deionized water 失效
    用于生产去离子水的设备

    公开(公告)号:US06338784B1

    公开(公告)日:2002-01-15

    申请号:US09030943

    申请日:1998-02-26

    IPC分类号: B01D6148

    摘要: An apparatus for producing deionized water, comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged to form demineralizing compartments and concentrating compartments and having ion exchangers accommodated in the demineralizing compartments, and designed to conduct an electric current while supplying water to be treated to the demineralizing compartments, wherein a spacer is arranged in each concentrating compartment to maintain the thickness of the concentrating compartment, and the cation exchange membranes or the anion exchange membranes are incorporated in their dry state in the electrodialyzer, whereby water is supplied to the electrodialyzer, while each ion exchange membrane is brought in contact with the spacer by a pressure from the demineralizing compartment side.

    摘要翻译: 一种用于生产去离子水的设备,包括具有阳离子交换膜和阴离子交换膜的电渗析器,交替布置成形成脱盐室和浓缩室,并且具有容纳在脱盐室内的离子交换器,并设计成在供给被处理水的同时进行电流 到脱盐室,其中在每个浓缩室中布置间隔物以保持浓缩室的厚度,并且阳离子交换膜或阴离子交换膜以其干燥状态并入电渗析器中,由此将水供应到电渗析器 而每个离子交换膜通过来自脱盐处理室侧的压力与间隔物接触。

    ELECTROLYTE POLYMER FOR POLYMER ELECTROLYTE FUEL CELLS, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY
    17.
    发明申请
    ELECTROLYTE POLYMER FOR POLYMER ELECTROLYTE FUEL CELLS, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY 有权
    聚合物电解质燃料电池用电解聚合物及其生产工艺及膜电极组件

    公开(公告)号:US20110091791A1

    公开(公告)日:2011-04-21

    申请号:US12976446

    申请日:2010-12-22

    IPC分类号: H01M8/10

    摘要: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.

    摘要翻译: 提供一种由具有磺酸基团的全氟化聚合物制成的聚合物电解质燃料电池用电解质聚合物,其特征在于,将0.1g聚合物浸入50g含3%过氧化氢水溶液的芬顿试剂溶液 和200ppm二价铁离子在40℃下反应16小时,溶液中检出的洗脱氟离子的量不超过浸渍聚合物中氟的总量的0.002%。 本发明的电解质聚合物具有非常少的不稳定的端基并且具有优异的耐久性,因此适合作为构成聚合物电解质燃料电池的电解质膜的聚合物和包含在催化剂层中的聚合物。

    Membrane-electrode assembly for polymer electrolyte fuel cells, and polymer electrolyte fuel cell
    18.
    发明申请
    Membrane-electrode assembly for polymer electrolyte fuel cells, and polymer electrolyte fuel cell 有权
    用于聚合物电解质燃料电池的膜 - 电极组件和聚合物电解质燃料电池

    公开(公告)号:US20060046121A1

    公开(公告)日:2006-03-02

    申请号:US11213888

    申请日:2005-08-30

    IPC分类号: H01M8/10 H01M4/94 H01M2/08

    摘要: The present invention provides a membrane-electrode assembly for polymer electrolyte fuel cells and a polymer electrolyte fuel cell having excellent dimensional stability and mechanical strength, and having high durability at the time of a power generation. Each of polymer electrolyte membranes (111, 211, 311) have a region 1 having proton conductivity over the entirety in the thickness direction of the membrane and a region 2 located at the outer peripheral portion of the region 1 and having a non-porous sheet disposed so that the region 2 has no proton conductivity over the entirety in the thickness direction of the membrane, and outer edges of the catalyst layers (127, 128) are disposed so as to be located in the area 2.

    摘要翻译: 本发明提供一种聚合物电解质燃料电池用的膜 - 电极组件和具有优异的尺寸稳定性和机械强度并且在发电时具有高耐久性的固体高分子型燃料电池。 高分子电解质膜(111,211,311)各自具有在膜的厚度方向上整体上具有质子传导性的区域1和位于区域1的外周部分的具有无孔片材的区域2 被设置为使得区域2在膜的厚度方向上整体上没有质子传导性,并且催化剂层(127,128)的外边缘被设置为位于区域2中。

    .beta.-galactoside-.alpha.-2, 6-sialyltransferase, and a process for
producing from Photobacterium
    20.
    发明授权
    .beta.-galactoside-.alpha.-2, 6-sialyltransferase, and a process for producing from Photobacterium 失效
    β-半乳糖苷-α-2,6-唾液酸转移酶和由光杆菌生产的方法

    公开(公告)号:US5827714A

    公开(公告)日:1998-10-27

    申请号:US739015

    申请日:1996-10-28

    IPC分类号: C12N9/10 C12N1/20

    CPC分类号: C12N9/1081 Y10S435/822

    摘要: A .beta.-galactoside-.alpha.-2,6-sialyltransferase derived from a microorganism belonging to the genus Photobacterium has ben disclosed, having the following physicochemical properties: (1) action and specificity: transferring sialic acid from cytidine monophosphate-sialic acid to the 6-position of a galactose residue in a sugar chain of a glycoconjugate or in a free sugar chain, or to the 6-position of a monosaccharide having a hydroxyl group on carbon at the 6-position and being capable of forming a glycoconjugate. (2) optimum pH: 5 to 6; (3) optimum temperature: 30.degree. C.; and (4) molecular weight: 64,000.+-.5,000 (determined by gel filtration).

    摘要翻译: 衍生自属于光杆菌属的微生物的β-半乳糖苷-α-2,6-唾液酸转移酶已公开,具有以下物理化学性质:(1)作用和特异性:将唾液酸从胞苷一磷酸唾液酸转移至6 在糖缀合物或游离糖链的糖链中的半乳糖残基的位置,或6-位上具有羟基的单糖的6-位,并且能够形成糖缀合物。 (2)最适pH:5〜6; (3)最适温度:30℃。 和(4)分子量:64,000 +/- 5,000(通过凝胶过滤测定)。