Ionomeric membrane
    3.
    发明公开
    Ionomeric membrane 有权
    离子膜

    公开(公告)号:EP1702670A1

    公开(公告)日:2006-09-20

    申请号:EP06004812.1

    申请日:2006-03-09

    摘要: An ionomeric membrane formed of a sulphonic (per)fluorinated ionomer wherein the sulphonic groups are at the end of short side chains (SSC), said ionomer having:

    equivalent weight between 700 and 1600 g/eq;
    side chains of formula: -O-CF 2 -CF 2 -SO 3 - M + , wherein M is hydrogen or an alkaline metal;

    said membrane having the following combination of properties:

    size variations, for both the orthogonal directions xy of the plane, lower than 15%, measured after dipping of the ionomeric membrane, dried at 105°C under vacuum for one hour, in demineralized water at 100°C for 30 minutes;
    the membrane, dipped at the temperature of 50°C for 22 hours in a water/ethanol mixture containing 40% by weight of alcohol, remains integral.

    摘要翻译: 由磺酸(全)氟化离聚物形成的离聚物膜,其中磺酸基在短侧链末端(SSC),所述离聚物具有:当量重量为700-1600g / eq; 式-O-CF 2 -CF 2 -SO 3 -M +的侧链,其中M是氢或碱金属; 所述膜具有以下性质的组合:对于平面的正交方向xy,尺寸变化小于15%,在浸渍离聚物膜后测量,在105℃真空下干燥1小时,在去离子水中于 100℃30分钟; 在含有40重量%酒精的水/乙醇混合物中,在50℃的温度下浸渍22小时的膜保持完整。

    Composite ionomeric membrane
    4.
    发明公开
    Composite ionomeric membrane 有权
    Ionomere Verbundmembran

    公开(公告)号:EP1702668A1

    公开(公告)日:2006-09-20

    申请号:EP06004811.3

    申请日:2006-03-09

    IPC分类号: B01D67/00 B01D69/14 B01D71/32

    摘要: A composite ionomeric membrane comprising a layer or film of a porous inert material on which a (per)fluorinated sulphonic ionomer is deposited wherein the sulphonic groups are at the end of short side chains (SSC), said ionomer having:

    equivalent weight comprised between 280 and 1,700 g/eq;
    side chains of formula: -O-CF 2 -CF 2 -SO 3- M + , wherein M is hydrogen or an alkaline metal;

    said membrane having in each of the two orthogonal directions xy of the plane, after dipping in demineralized water at 100°C for 30 minutes and preliminary drying at 105°C under vacuum for one hour, the following size variations:

    in one direction, size variation lower than 25%;
    in the other direction, size variation lower than 20%.

    摘要翻译: 一种复合离聚物膜,其包含多孔惰性材料的层或膜,在其上沉积(全)氟化磺酸离聚物,其中所述磺基位于短侧链(SSC)的末端,所述离聚物具有:当量为280 和1,700g / eq; 侧链:-O-CF 2 -CF 2 -SO 3 - M +,其中M为氢或碱金属; 所述膜在平面的两个正交方向xy中的每一个中,在100℃的软化水中浸渍30分钟,并在105℃真空下预干燥1小时,以下尺寸变化:在一个方向上的尺寸 变化幅度低于25%; 在另一个方向,尺寸变化低于20%。

    Process for stabilizing fluoropolymer having ion exchange groups
    5.
    发明公开
    Process for stabilizing fluoropolymer having ion exchange groups 审中-公开
    Verfahren zur Stabilisierung von Fluoropolymeren die Ionenaustauschergruppen enthalten

    公开(公告)号:EP1914251A1

    公开(公告)日:2008-04-23

    申请号:EP06122422.6

    申请日:2006-10-17

    IPC分类号: C08F8/22 C08F14/18 C08J5/22

    摘要: The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising:
    - suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M);
    - contacting said dispersion (D) with fluorine under irradiation with U.V. radiation so as to obtain a stabilized polymer.
    Still objects of the invention are a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of -COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers.

    摘要翻译: 本发明涉及一种稳定包含离子交换基团的半结晶含氟聚合物的方法,所述方法包括:将至少一种具有离子交换基团[聚合物(I)]的半结晶含氟聚合物悬浮在至少一种氟化有机分散介质中[ 介质(M)],从而在分散介质(M)中获得聚合物(I)的分散体(D); - 在紫外线照射下使所述分散体(D)与氟接触。 辐射以获得稳定的聚合物。 本发明的另一目的是如上定义的稳定的半结晶含氟聚合物,其具有少量-COF型的不稳定端基,通过该方法获得的稳定的含氟聚合物或在燃料电池装置中使用稳定的含氟聚合物,膜 以及包含所述含氟聚合物的膜 - 电极组件。

    Fluoropolymer composition
    6.
    发明公开
    Fluoropolymer composition 审中-公开
    Fluorpolymerzusammensetzung

    公开(公告)号:EP1911796A1

    公开(公告)日:2008-04-16

    申请号:EP06122203.0

    申请日:2006-10-12

    IPC分类号: C08K3/00 C08L27/12

    CPC分类号: C08K3/10 C08L27/12

    摘要: The invention pertains to a fluoropolymer composition (C) comprising:
    - at least one functional fluoropolymer [polymer (I)], said polymer comprising :
    - recurring units derived from at least one ethylenically unsaturated monomer comprising at least one fluorine atom (fluorinated monomer, hereinafter); and
    - a substantial amount of recurring units derived from at least one ethylenically unsaturated monomer comprising at least one cation exchange group (functional monomer, hereinafter); and
    - at least one cerium compound [compound (O)].
    Still objects of the invention are a process for the manufacture of said composition and the use of the same as catalyst.

    摘要翻译: 本发明涉及含氟聚合物组合物(C),其包含: - 至少一种官能含氟聚合物[聚合物(I)],所述聚合物包含: - 由至少一种包含至少一个氟原子的烯键式不饱和单体衍生的重复单元(氟化单体, 下文); 和 - 至少一种包含至少一个阳离子交换基团(以下称为官能单体)的烯属不饱和单体衍生的重复单元的大量; 和 - 至少一种铈化合物[化合物(O)]。 本发明的另一个目的是制备所述组合物的方法及其用作催化剂的方法。

    Fluoroionomer liquid composition
    9.
    发明公开
    Fluoroionomer liquid composition 审中-公开
    氟离子液体组合物

    公开(公告)号:EP2062933A1

    公开(公告)日:2009-05-27

    申请号:EP07121502.4

    申请日:2007-11-26

    摘要: The invention pertains to a liquid composition comprising:
    - at least one fluoroionomer (I) [fluoroionomer (I-1)], said fluoroionomer (I-1) having a heat of fusion comprised between 4 and 20 J/g;
    - at least one fluoroionomer (I) [fluoroionomer (I-2)], said fluoroionomer (I-2) being substantially amorphous, that is to say having a heat of fusion of less than 4 J/g, and wherein the water extractable fraction of fluorionomer (I-2) is less than 40 % wt,
    said liquid composition comprising fluoroionomer (I-1) and fluoroionomer (I-2) in a weight ratio (I-1)/(I-2) of at least 2:1.

    摘要翻译: 本发明涉及一种液体组合物,其包含: - 至少一种氟代离聚物(I)[氟代离聚物(I-1)],所述氟代离聚物(I-1)具有4-20J / g的熔化热; - 至少一种氟代离聚物(I)[氟代离聚物(I-2)],所述氟代离聚物(I-2)基本上是无定形的,即具有小于4J / g的熔化热,并且其中水可提取物 所述含氟离聚物(I-1)和含氟离聚物(I-2)的液体组合物的重量比(I-1)/(I-2)至少为40重量% 2:1。

    Process for obtaining CCM with subgaskets
    10.
    发明公开
    Process for obtaining CCM with subgaskets 有权
    过程用于制备CCM的与辅助垫

    公开(公告)号:EP1804325A3

    公开(公告)日:2008-01-23

    申请号:EP06026261.5

    申请日:2006-12-19

    IPC分类号: H01M8/10 H01M8/02 H01M4/86

    摘要: A continuous process for applying subgaskets to both the flat surfaces of CCM assemblies, comprising the following steps:
    a) preparation of a roll (A) formed of a composite (20) consisting in one central layer (1), formed of an ionomeric membrane sheet, wherein on each of the two surfaces, electrocatalytic layers (2) longitudinally distributed at regular intervals are applied, said layers being on each of the two surfaces in symmetric position among each other with respect to the membrane plane;
    b) preparation of two subgasket rolls (B) wherein, on a subgasket sheet (21), in correspondence to the position of the electrocatalytic layers (2) in the roll (A), openings (3) are made; the per cent ratio (subgasket opening area (3))/(electrocatalytic layer area (2)) being between 90% and 99%;
    c) hot lamination of two rolls (B) with the roll (A), carried out by feeding the roll (A) between the two rolls (B), with the two drums (8) for the lamination; the step being carried out so that the perimeter of the openings (3) of the two rolls (B) falls inside the area of the electrocatalytic layers (2), and obtaining of a roll (C), wherein on each of the two surfaces of the sheet formed of a CCM sequence (roll (A)) a subgasket sheet (5) (roll (B)) is applied.