PROCESS FOR THE PREPARATION OF A BLOCK COPOLYMER C

专利名称：PROCESS FOR THE PREPARATION OF A

BLOCK COPOLYMER COMPRISING A FIRSTPOLYOLEFIN BLOCK AND A SECONDPOLYMER BLOCK AND THE PRODUCTSOBTAINED THEREFROM

发明人：Lidia Jasinska-Walc,Miloud Bouyahyi,Robbert

Duchateau,Lukasz SzymonRutkowski,Arkadiusz Zych

申请号：US15537226申请日：20151217

公开号：US20170349710A1公开日：20171207

摘要：The present invention relates to a process for the preparation of a blockcopolymer comprising a first type of polyolefin block and at least one type of secondpolymer block, the process comprising the steps of: A) polymerizing at least one type ofolefin monomer using a catalyst system to obtain a first polyolefin block containing amain group metal on at least one chain end; the catalyst system comprising: i) a metalcatalyst or metal catalyst precursor comprising a metal from Group 3-10 of the IUPACPeriodic Table of elements; and ii) at least one type of chain transfer agent; and iii)optionally a co-catalyst; B) reacting the first polyolefin block containing a main groupmetal on at least one chain end obtained in step A) with at least one type of oxidizingagent and subsequently at least one type of metal substituting agent to obtain a firstpolyolefin block containing at least one functionalized chain end; C) forming at least one

second polymer block on the first polyolefin block, wherein as an initiator the

functionalized chain end of the first polyolefin block obtained in step B) is used to obtainthe block copolymer.

申请人：SABIC GLOBAL TECHNOLOGIES B.V.

地址：Bergen op Zoom NL

国籍：NL

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