Method for reducing depositions in polymerization vessels
    21.
    发明授权
    Method for reducing depositions in polymerization vessels 有权
    降低聚合容器沉积的方法

    公开(公告)号:US07557170B2

    公开(公告)日:2009-07-07

    申请号:US12179375

    申请日:2008-07-24

    IPC分类号: C08F2/00 C08F10/10

    摘要: The method of polymerization includes the steps of a) providing a catalyst system, b) providing at least one monomer or comonomer mixture in a reaction vessel, c) introducing the catalyst into the reaction vessel, and d) polymerizing the at least one monomer or comonomer mixture to produce an isoolefin polymer. The catalyst may be soluble in the diluent used for polymerization. The polymerization contact surfaces of the reaction vessel have an arithmetic average surface roughness of less than 0.3 μm (12 microinches).

    摘要翻译: 聚合方法包括以下步骤:a)提供催化剂体系,b)在反应容器中提供至少一种单体或共聚单体混合物,c)将催化剂引入反应容器中,和d)聚合至少一种单体或 共聚单体混合物以产生异烯烃聚合物。 催化剂可溶于用于聚合的稀释剂中。 反应容器的聚合接触表面的算术平均表面粗糙度小于0.3μm(12微英寸)。

    Mutual exclusion at the record level with priority inheritance for embedded systems using one semaphore
    22.
    发明授权
    Mutual exclusion at the record level with priority inheritance for embedded systems using one semaphore 有权
    在使用一个信号量的嵌入式系统的优先级继承方面,在记录级别进行相互排斥

    公开(公告)号:US07334229B1

    公开(公告)日:2008-02-19

    申请号:US10327487

    申请日:2002-12-20

    IPC分类号: G06F9/46 G06F12/00

    摘要: A method for providing mutual exclusion at a single data element level for use in embedded systems. Entries for tasks that are currently holding a resource are stored in a hold list. Entries for tasks that are not currently executing and are waiting to be freed are stored in a wait list. A single mutual exclusion semaphore flags any request to access a resource.

    摘要翻译: 一种用于在单个数据元素级别提供互斥以在嵌入式系统中使用的方法。 当前持有资源的任务的条目存储在保留列表中。 当前正在执行并正在等待被释放的任务的条目存储在等待列表中。 单个互斥信号标志着任何访问资源的请求。