Start up methods for multiple catalyst systems
    5.
    发明授权
    Start up methods for multiple catalyst systems 有权
    启动多种催化剂体系的方法

    公开(公告)号:US06372868B1

    公开(公告)日:2002-04-16

    申请号:US09456234

    申请日:1999-12-07

    IPC分类号: C08F444

    摘要: This invention relates to a method to introduce multiple catalysts into a gas or slurry phase reactor comprising: (a) introducing one or more olefins and a first catalyst and an activator into the reactor and allowing the olefins to polymerize, (b) obtaining a polyolefin, (c) introducing a second catalyst and an optional activator into the first catalyst/activator composition and thereafter introducing the combination into the reactor and allowing the olefins to polymerize. This invention further relates to a method to introduce multiple catalysts into a gas or slurry phase reactor comprising: (a) introducing one or more olefins, a first catalyst and an activator, and a second catalyst and an optional activator into the reactor, wherein the all the catalysts and activators are combined together prior to being introduced into the reactor.

    摘要翻译: 本发明涉及一种将多种催化剂引入气相或淤浆相反应器的方法,包括:(a)将一种或多种烯烃和第一种催化剂和活化剂引入反应器并使烯烃聚合,(b)获得聚烯烃 ,(c)将第二催化剂和任选的活化剂引入第一催化剂/活化剂组合物中,然后将该组合引入反应器中并使烯烃聚合。本发明还涉及将多种催化剂引入气体或浆料 其包括:(a)将一种或多种烯烃,第一催化剂和活化剂以及第二催化剂和任选的活化剂引入反应器中,其中所有催化剂和活化剂在引入反应器之前组合在一起。