Silicone rubber composition
    1.
    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。

    Semiconductive silicone rubber composition and silicone rubber roll
    2.
    发明授权
    Semiconductive silicone rubber composition and silicone rubber roll 失效
    半导体硅橡胶组合物和硅橡胶辊

    公开(公告)号:US06458859B2

    公开(公告)日:2002-10-01

    申请号:US09731846

    申请日:2000-12-08

    IPC分类号: C08J904

    摘要: By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an organic peroxide and/or an organohydrogenpolysiloxane/platinum group catalyst. The composition cures into silicone rubber having a stabilized resistivity in the semiconductive region, especially in the range of 1×103 to 1×1012 &OHgr;-cm, even under high voltages. The composition is thus suitable as a semiconductive roll material for use as charging rolls, transfer rolls and developing rolls.

    摘要翻译: 通过在具有至少两个脂族不饱和基团的有机聚硅氧烷中混合针状导电性氧化钛和具有含金属离子的部分的抗静电剂,得到可用有机过氧化物和/或有机氢聚硅氧烷/铂族基团固化的硅橡胶组合物 催化剂。 即使在高电压下,组合物固化成在半导电区域中具有稳定的电阻率的硅橡胶,特别是在1×10 3至1×10 12欧姆 - 厘米的范围内。 因此,该组合物适合作为用作充电辊,转印辊和显影辊的半导体辊材料。

    Semiconductive silicone rubber compositions and semiconductive silicone
rubber rolls
    3.
    发明授权
    Semiconductive silicone rubber compositions and semiconductive silicone rubber rolls 失效
    半导体硅橡胶组合物和半导体硅橡胶辊

    公开(公告)号:US6013201A

    公开(公告)日:2000-01-11

    申请号:US84164

    申请日:1998-05-26

    摘要: In a silicone rubber composition comprising an organopolysiloxane having at least two aliphatic unsaturated groups and a curing agent, thermal black and/or furnace black having a primary particle diameter of 50-500 nm and a DBP oil absorption of 20-50 cc/100 g is blended. There may be further blended an organopolysiloxane having an ionic group-bearing portion as an antistatic agent and/or a hydrocarbon insulating oil. The composition has a stable resistivity in the semiconductive region and thus is useful as semiconductive rolls.

    摘要翻译: 在包含具有至少两个脂族不饱和基团的有机聚硅氧烷和固化剂的硅橡胶组合物中,一次粒径为50-500nm,DBP吸油量为20-50cc / 100g的热黑和/或炉黑 混合 还可以将具有离子基团部分的有机聚硅氧烷进一步混合为抗静电剂和/或烃绝缘油。 该组合物在半导电区域中具有稳定的电阻率,因此可用作半导体辊。

    Fuel cell separator sealing material and fuel cell separator
    5.
    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

    Conductive organopolysiloxane composition
    6.
    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。

    SEPARATOR AND SEPARATOR SEAL FOR POLYMER ELECTROLYTE FUEL CELLS
    9.
    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
    10.
    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。