Cable semiconducting shield
    1.
    发明授权
    Cable semiconducting shield 有权
    电缆半导体屏蔽

    公开(公告)号:US07872198B2

    公开(公告)日:2011-01-18

    申请号:US12099385

    申请日:2008-04-08

    IPC分类号: H01B11/00

    摘要: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.

    摘要翻译: 一种电缆,包括一个或多个电导体或通信介质或两个或多个电导体或通信介质的核心,每个电导体,通信介质或核心被包围的层包围:(a)聚乙烯; 聚丙烯; 或其混合物; (b)碳纳米管; (c)除碳纳米管之外的导电炭黑; 和(d)任选的丙烯腈和丁二烯的共聚物,其中基于共聚物或硅橡胶的重量,丙烯腈的存在量为约30至约60重量%。

    Gas phase polymerization and method of controlling same
    2.
    发明申请
    Gas phase polymerization and method of controlling same 有权
    气相聚合及其控制方法

    公开(公告)号:US20070043174A1

    公开(公告)日:2007-02-22

    申请号:US10558941

    申请日:2004-05-26

    IPC分类号: C08G85/00

    摘要: A process for controlling a continuous gas phase exothermic process in a reactor comprising: (i) effecting a gas phase exothermic reaction under a set of operating conditions in the presence of a cooling agent, the cooling agent having a pre-selected concentration and feed rate of an induced cooling agent; (ii) determining a maximum production rate (I) without regard to limitations due to the cooling agent under the operating conditions; (iii) determining a maximum production rate (II) with regard to limitations due to the cooling agent under the operating conditions; (iv) calculating an optimal concentration of the induced cooling agent such that the difference between (I) and (II) is minimized; and (v) adjusting the feed rate of the induced cooling agent to achieve the concentration value calculated in (iv).

    摘要翻译: 一种用于控制反应器中的连续气相放热过程的方法,包括:(i)在冷却剂存在下在一组操作条件下进行气相放热反应,所述冷却剂具有预先选择的浓度和进料速率 的诱导冷却剂; (ii)确定最大生产率(I),而不考虑在操作条件下由于冷却剂的限制; (iii)确定在运行条件下由冷却剂引起的限制的最大生产率(II); (iv)计算诱导的冷却剂的最佳浓度,使得(I)和(II)之间的差异最小化; 和(v)调节诱导的冷却剂的进料速率以达到(iv)中计算的浓度值。

    Simulated condensing mode
    6.
    发明授权
    Simulated condensing mode 失效
    模拟冷凝模式

    公开(公告)号:US06143843A

    公开(公告)日:2000-11-07

    申请号:US236265

    申请日:1999-01-22

    申请人: Saul R. Bresch

    发明人: Saul R. Bresch

    IPC分类号: C08F2/01 C08F2/34 C08F10/00

    摘要: A process comprising contacting one or more monomers with a catalyst, in the gas phase, under polymerization conditions, in a fluidized bed reactor, with the proviso that the reactor is at least partially cooled internally by the vaporization of a liquid cryogen directly into the reactor.

    摘要翻译: 一种方法包括在流化床反应器中在气相中在气相中使一种或多种单体与催化剂接触,条件是反应器通过液体冷冻剂直接进入反应器而至少部分内部冷却 。