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1. 发明授权

US06340728B1 Method for olefin polymerization with recycling of co-catalyst 有权
标题翻译：烯烃聚合方法与辅助催化剂的再循环
公开(公告)号：US06340728B1
公开(公告)日：2002-01-22
申请号：US09494711
申请日：2000-01-31
申请人： Jae-Seung Oh , Bun-Yeoul Lee , Yoon-Hyeun Oum , Tai-Ho Park
发明人： Jae-Seung Oh , Bun-Yeoul Lee , Yoon-Hyeun Oum , Tai-Ho Park
IPC分类号： C08F214
CPC分类号： C08F10/00 , C08F4/65925 , C08F6/02 , C08F110/06 , Y02P20/584 , C08L23/00 , C08F4/65912 , C08F4/65916 , C08F2500/18
摘要： Disclosed are catalyst preparation olefin polymerization processes with the recycling of a co-catalyst. According to the olefin polymerization process activated single-site catalysts are prepared by contacting supported single-site pre-catalyst with an organic solvent containing co-catalyst. The activated single-site catalysts are separated from co-catalysts dissolved in an organic solvent and the olefin polymerization is conducted using the separated single-site catalysts with one or more olefinic monomers. The separated co-catalysts is reused by recycling the organic solvent containing the separated co-catalysts and contacting them with the supported single-site pre-catalysts. The olefin polymerization process of the present invention enables recycling expensive co-catalyst for subsequent olefin polymerization and accordingly the total amount of co-catalyst required can be significantly reduced.
摘要翻译：公开了催化剂制备烯烃聚合方法与助催化剂的再循环。根据烯烃聚合方法，活化的单中心催化剂是通过将负载的单部位预催化剂与含有助催化剂的有机溶剂接触来制备的。将活化的单中心催化剂与溶于有机溶剂中的助催化剂分离，并使用分离的单中心催化剂与一种或多种烯属单体进行烯烃聚合。分离的助催化剂通过再循环含有分离的助催化剂的有机溶剂并将其与负载的单位点预催化剂接触来再利用。本发明的烯烃聚合方法使得可以再循环昂贵的助催化剂用于随后的烯烃聚合，因此可显着降低所需的助催化剂的总量。

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