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公开(公告)号:US20110060111A1
公开(公告)日:2011-03-10
申请号:US12944498
申请日:2010-11-11
申请人: Kevin J. Cann , Minghui Zhang , Jose Fernando Cevallos-Candau , John Moorhouse , Mark Gregory Goode , Daniel Paul Zilker, JR. , Maria Apecetche
发明人: Kevin J. Cann , Minghui Zhang , Jose Fernando Cevallos-Candau , John Moorhouse , Mark Gregory Goode , Daniel Paul Zilker, JR. , Maria Apecetche
IPC分类号: C08F4/22
CPC分类号: C08F10/00 , B01J21/08 , B01J31/0212 , B01J31/122 , B01J31/128 , B01J31/143 , B01J31/34 , B01J35/1019 , B01J35/1023 , B01J35/1047 , C08F110/02 , C08F210/16 , Y02P20/52 , Y10S526/901 , C08F4/69 , C08F2500/12 , C08F2500/18 , C08F2500/04 , C08F2500/10 , C08F210/14 , C08F4/025
摘要: The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.
摘要翻译: 本发明涉及使用烷基铝活化剂和助催化剂来改进铬基催化剂的性能。 烷基铝允许聚合物分子量的可变控制,侧分枝的控制,同时具有所需的生产率,并且可以直接或分别地施加到催化剂到反应器。 将烷基铝化合物直接加入反应器(原位)消除了诱导时间。