Fuel cell separator sealing material and fuel cell separator
    2.
    发明授权
    Fuel cell separator sealing material and fuel cell separator 有权
    燃料电池分离器密封材料和燃料电池分离器

    公开(公告)号:US09160011B2

    公开(公告)日:2015-10-13

    申请号:US12395157

    申请日:2009-02-27

    IPC分类号: H01M2/08 C08L83/00 H01M8/02

    摘要: For use in a fuel cell separator comprising a separator substrate, a primer layer, and an elastomeric seal, a sealing material comprises a primer composition containing Si—H groups of which the primer layer is formed, and a liquid addition-curable silicone rubber composition containing alkenyl groups and Si—H groups of which the elastomeric seal is formed. A molar ratio of the total amount of Si—H groups to the total amount of alkenyl groups per unit weight of the primer composition and the silicone rubber composition is in the range: 5.0

    摘要翻译: 为了在包括隔板基材,底漆层和弹性体密封件的燃料电池隔板中使用,密封材料包括底漆组合物,该底漆组合物含有形成底漆层的Si-H基,和液体可加成固化的硅橡胶组合物 含有烯基和形成弹性体密封件的Si-H基团。 Si-H基总量与底漆组合物和硅橡胶组合物每单位重量的烯基总量的摩尔比在5.0

    SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS
    3.
    发明申请
    SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS 有权
    聚合物电解质燃料电池的分离器和分离器密封

    公开(公告)号:US20090148750A1

    公开(公告)日:2009-06-11

    申请号:US12328629

    申请日:2008-12-04

    IPC分类号: H01M2/08

    摘要: A rubber composition comprising (A) an alkenyl-containing organopolysiloxane, (B) a silicone resinous copolymer, (C) an organohydrogenpolysiloxane, (D) fumed silica having a BET specific surface area of 50-400 m2/g, (E) carbon powder having a BET specific surface area of 30-150 m2/g, and (F) an addition reaction catalyst cures into a product which is useful as a separator seal in PEFCs. The rubber has a reduced compression set even in an acidic atmosphere or in contact with LLC, and the rubber itself has strength and good adhesion to separator substrates. The separator provides excellent seal performance over a long term.

    摘要翻译: 一种橡胶组合物,其包含(A)含烯基的有机聚硅氧烷,(B)有机硅树脂共聚物,(C)有机氢聚硅氧烷,(D)BET比表面积为50-400m 2 / g的煅制二氧化硅,(E)碳 BET比表面积为30-150m2 / g的粉末,(F)加成反应催化剂固化成可用作PEFC中的隔膜密封的产品。 即使在酸性气氛中或与LLC接​​触的情况下,橡胶也具有降低的压缩永久变形,并且橡胶本身具有强度和对隔板基底的良好粘附性。 隔膜长期保持良好的密封性能。

    SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS
    5.
    发明申请
    SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS 有权
    聚合物电解质燃料电池的分离器和分离器密封

    公开(公告)号:US20090148748A1

    公开(公告)日:2009-06-11

    申请号:US12328261

    申请日:2008-12-04

    IPC分类号: H01M2/08 C08K3/36

    CPC分类号: H01M8/0282 H01M2008/1095

    摘要: A rubber composition comprising (A) a mixture of two or more alkenyl-containing liquid organopolysiloxanes having different weight average molecular weights, (B) an organohydrogenpolysiloxane, (C) fumed silica having a BET specific surface area of 50-400 m2/g, (D) carbon powder, and (E) an addition reaction catalyst cures into a product which is useful as a separator seal in PEFCs. The rubber has a reduced compression set even in an acidic atmosphere or in contact with LLC, and the rubber itself has strength and good adhesion to separator substrates. The separator provides excellent seal performance over a long term.

    摘要翻译: 一种橡胶组合物,其包含(A)具有不同重均分子量的两种或更多种含烯基的液态有机聚硅氧烷的混合物,(B)有机氢聚硅氧烷,(C)BET比表面积为50-400m2 / g的热解二氧化硅, (D)碳粉,和(E)加成反应催化剂固化成可用作PEFC中的隔膜密封的产品。 即使在酸性气氛中或与LLC接​​触的情况下,橡胶也具有降低的压缩永久变形,并且橡胶本身具有强度和对隔板基底的良好粘附性。 隔膜长期保持良好的密封性能。

    Separator and separator seal for polymer electrolyte fuel cells
    6.
    发明授权
    Separator and separator seal for polymer electrolyte fuel cells 有权
    用于聚合物电解质燃料电池的分离器和分离器密封

    公开(公告)号:US08795920B2

    公开(公告)日:2014-08-05

    申请号:US12328629

    申请日:2008-12-04

    IPC分类号: H01M2/20 H01M8/02

    摘要: A rubber composition comprising (A) an alkenyl-containing organopolysiloxane, (B) a silicone resinous copolymer, (C) an organohydrogenpolysiloxane, (D) fumed silica having a BET specific surface area of 50-400 m2/g, (E) carbon powder having a BET specific surface area of 30-150 m2/g, and (F) an addition reaction catalyst cures into a product which is useful as a separator seal in PEFCs. The rubber has a reduced compression set even in an acidic atmosphere or in contact with LLC, and the rubber itself has strength and good adhesion to separator substrates. The separator provides excellent seal performance over a long term.

    摘要翻译: 一种橡胶组合物,其包含(A)含烯基的有机聚硅氧烷,(B)有机硅树脂共聚物,(C)有机氢聚硅氧烷,(D)BET比表面积为50-400m 2 / g的煅制二氧化硅,(E)碳 BET比表面积为30-150m2 / g的粉末,(F)加成反应催化剂固化成可用作PEFC中的隔膜密封的产品。 即使在酸性气氛中或与LLC接​​触的情况下,橡胶也具有降低的压缩永久变形,并且橡胶本身具有强度和对隔板基底的良好粘附性。 隔膜长期保持良好的密封性能。

    Separator and separator seal for polymer electrolyte fuel cells
    7.
    发明授权
    Separator and separator seal for polymer electrolyte fuel cells 有权
    用于聚合物电解质燃料电池的分离器和分离器密封

    公开(公告)号:US08133949B2

    公开(公告)日:2012-03-13

    申请号:US12328261

    申请日:2008-12-04

    IPC分类号: C08L83/00 H01M2/02

    CPC分类号: H01M8/0282 H01M2008/1095

    摘要: Disclosed is a rubber composition for separator seal, comprising (A) a mixture of two or more alkenyl-containing liquid organopolysiloxanes having different weight average molecular weights, (B) an organohydrogenpolysiloxane, (C) fumed silica having a BET specific surface area of 50-400 m2/g, (D) carbon black having a BET specific surface area of 30 to 120 m2/g, an iodine adsorption value of 30 to 120 mg/g, and a DBP absorption value of 100 to 200 ml/100 g, and (E) an addition reaction catalyst cures into a product which is useful as a separator seal in PEFCs.

    摘要翻译: 公开了一种用于隔离器密封的橡胶组合物,其包含(A)两种或更多种具有不同重均分子量的含链烯基的液体有机聚硅氧烷的混合物,(B)有机氢聚硅氧烷,(C)BET比表面积为50的热解二氧化硅 -400m 2 / g,(D)BET比表面积为30〜120m2 / g,碘吸附值为30〜120mg / g,DBP吸收值为100〜200ml / 100g的炭黑 ,和(E)加成反应催化剂固化成可用作PEFC中的隔膜密封件的产品。

    Silicone rubber composition
    8.
    发明申请
    Silicone rubber composition 审中-公开
    硅橡胶组合物

    公开(公告)号:US20050165161A1

    公开(公告)日:2005-07-28

    申请号:US11037291

    申请日:2005-01-19

    摘要: A silicone rubber composition comprising (A) 100 parts by weight of an organopolysiloxane having a degree of polymerization of 100 or higher and having at least two silicon-bonded alkenyl groups in the molecule; (B) from 3 to 100 parts by weight of a wet silica having the following properties: specific surface area (the BET method) of 50 m2/g or larger, specific surface area (the BET method)/specific surface area (the CTAB method) of from 1.0 to 1.3, and water content of 4% or lower; and (C) an effective amount of a curing agent. The silicone rubber composition can be obtained without foaming even in hot air vulcanization and even if wet silica is used therein, and the silicone rubber composition gives a silicone rubber excellent in electrical properties such as electrical insulating properties.

    摘要翻译: 一种硅橡胶组合物,其包含(A)100重量份聚合度为100以上且在分子中具有至少两个与硅键合的烯基的有机聚硅氧烷; (B)3〜100重量份具有以下特性的湿二氧化硅:比表面积(BET法)为50m 2 / g以上比表面积(BET法 )/比表面积(CTAB法)为1.0〜1.3,水含量为4%以下; 和(C)有效量的固化剂。 即使在热空气硫化中也可以得到无发泡的硅橡胶组合物,即使在其中使用湿二氧化硅,硅橡胶组合物得到电性能如电绝缘性优异的硅橡胶。

    Conductive organopolysiloxane composition
    9.
    发明授权
    Conductive organopolysiloxane composition 失效
    导电有机聚硅氧烷组合物

    公开(公告)号:US06156236A

    公开(公告)日:2000-12-05

    申请号:US272341

    申请日:1999-03-19

    摘要: A conductive organopolysiloxane composition is provided which includes (A) 100 parts by weight of an organopolysiloxane; and (B) 0.1 to 800 parts by weight of a conductive material obtained by subjecting a member selected from the group consisting of a conductive metal, a conductive metal compound, a filler surface-treated with a conductive metal and a filler surface-treated with a conductive metal compound, to surface treatment with a compound selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2). ##STR1## wherein R.sup.1 represents --O-- or --NH--, and R.sup.2 represents a hydrogen atom or a phenyl group. This composition is useful for the formation of a silicone rubber having a sufficient electrical conductivity and also stably retainable of electrical conductivity almost without undergoing a change in electrical conductivity even in a high-temperature environment.

    摘要翻译: 提供了一种导电有机基聚硅氧烷组合物,其包括(A)100重量份的有机基聚硅氧烷; 和(B)0.1〜800重量份的导电材料,所述导电材料通过使选自由导电金属,导电金属化合物,用导电金属表面处理的填料和用 导电金属化合物,用选自由式(1)表示的化合物和由式(2)表示的化合物组成的组中的化合物进行表面处理。 其中R1表示-O-或-NH-,R2表示氢原子或苯基。 该组合物可用于形成具有足够导电性的硅橡胶,并且即使在高温环境下也几乎不会发生导电性的变化,也可稳定地保持导电性。