Silicon-treated carbon blacks surface treated with a silicone fluid or a silane
    6.
    发明授权
    Silicon-treated carbon blacks surface treated with a silicone fluid or a silane 失效
    用硅酮流体或硅烷表面处理的经硅处理的炭黑

    公开(公告)号:US06191194B1

    公开(公告)日:2001-02-20

    申请号:US09438897

    申请日:1999-11-12

    IPC分类号: C08K906

    CPC分类号: C08K3/04 C08K9/06 C08L83/04

    摘要: Silicone rubber compositions are disclosed including a silicone polymer and a silicon-treated carbon black. The silicon-treated carbon blacks include a silicon-containing compound that is distributed through at least a portion of the carbon black aggregate. The silicon-treated carbon black is incorporated within a silicone rubber composition as an alternative reinforcing and extending filler, imparting higher hardness to elastomers formed from the composition, when compared to silicone rubber compositions incorporating an untreated carbon black.

    摘要翻译: 公开了硅氧烷聚合物和经硅处理的炭黑的硅橡胶组合物。 经硅处理的炭黑包括通过至少一部分炭黑聚集体分布的含硅化合物。 当与掺入未处理炭黑的硅橡胶组合物相比时,硅处理的炭黑作为替代的增强和扩展填料掺入硅橡胶组合物中,赋予由组合物形成的弹性体更高的硬度。

    Silicone rubber compositions incorporating silicon-treated carbon blacks
    7.
    发明授权
    Silicone rubber compositions incorporating silicon-treated carbon blacks 失效
    掺入硅处理炭黑的硅橡胶组合物

    公开(公告)号:US6020402A

    公开(公告)日:2000-02-01

    申请号:US529234

    申请日:1995-09-15

    IPC分类号: C08K3/04 C08K9/06 C08L83/06

    CPC分类号: C08K3/04 C08K9/06

    摘要: Silicone rubber compositions are disclosed including a silicone polymer and a silicon-treated carbon black. The silicon-treated carbon blacks include a silicon-containing compound that is distributed through at least a portion of the carbon black aggregate. The silicon-treated carbon black is incorporated within a silicone rubber composition as an alternative reinforcing and extending filler, imparting higher hardness to elastomers formed from the composition, when compared to silicone rubber compositions incorporating an untreated carbon black.

    摘要翻译: 公开了硅氧烷聚合物和经硅处理的炭黑的硅橡胶组合物。 经硅处理的炭黑包括通过至少一部分炭黑聚集体分布的含硅化合物。 当与掺入未处理炭黑的硅橡胶组合物相比时,硅处理的炭黑作为替代的增强和扩展填料掺入硅橡胶组合物中,赋予由组合物形成的弹性体更高的硬度。

    High temperature process for producing fine magnetic particles of
M-phase structure
    9.
    发明授权
    High temperature process for producing fine magnetic particles of M-phase structure 失效
    用于生产M相结构精细磁性颗粒的高温工艺

    公开(公告)号:US4765920A

    公开(公告)日:1988-08-23

    申请号:US885346

    申请日:1986-07-14

    摘要: A method for producing fine magnetic particles having the barium or strotium ferrite M-phase crystal structure. An iron and alkaline earth metal halide feed solution is vaporized to form a precursor and oxidizing vapor phase. The precursor and hydrolyzing or oxidizing vapor phases are held in a reactor at a temperature sufficient to effect vaporization of the feed solution yet which is below the melting point of the desired M-phase crystal structure. Small iron oxide particles precipitate from the vapor phase and alkaline earth oxides thereafter. The alkaline earth oxide particles diffuse into the iron oxide particles to form the desired M-phase structure. When the desired width and thickness of the M-phase crystal platelets is achieved, the M-phase particles are cooled by quenching. Composition of the feed solution may be modified by substituting divalent metal halides for the alkaline earth metal halide or by substituting trivalent halides or a combination of a divalent metal halide and either a penta or quatravalent metal halide for the ferric halide.

    摘要翻译: 一种具有钡或碲酸铁氧体M相晶体结构的精细磁性颗粒的方法。 铁和碱土金属卤化物进料溶液蒸发以形成前体和氧化气相。 前体和水解或氧化气相保持在反应器中,其温度足以使进料溶液蒸发,但低于所需M相晶体结构的熔点。 此后,小的氧化铁颗粒从气相和碱土氧化物中沉淀出来。 碱土金属氧化物颗粒扩散到氧化铁颗粒中以形成所需的M相结构。 当达到期望的M相晶体血小板的宽度和厚度时,M相颗粒通过淬火冷却。 可以通过用二价金属卤化物代替碱土金属卤化物或用三价卤化物或二价金属卤化物和五价或四价金属卤化物的组合替代卤化铁来改变进料溶液的组成。