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公开(公告)号：US10457758B2
公开(公告)日：2019-10-29
申请号：US14652414
申请日：2013-12-20
Applicant: Borealis AG
Inventor： Kumudini Jayaratne , Elina Hamalainen , Kalle Kallio
IPC: C08F4/52 , C08F4/68 , C08F210/16
Abstract: Supported Ziegler-Natta ethylene polymerization procatalyst comprising special bi-(oxygen containing ring) compounds as internal donor, as well as a process for preparing the same and use of such a procatalyst for preparing a catalyst system used in the polymerization of ethylene for producing high molecular weight polyethylenes.
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