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公开(公告)号:WO2008025212A1
公开(公告)日:2008-03-06
申请号:PCT/CN2007/002221
申请日:2007-07-20
IPC分类号: C08F10/10 , C08F210/12 , C08F2/00 , B01J8/10
CPC分类号: C08F210/12 , B01J19/1806 , C08F236/08 , C08F2500/21 , C08F2500/01
摘要: A process for preparing butyl rubber involves that the mixture of iso-monoolefin, conjugated diene and diluent together with the mixture of initiator and diluent is fed into the hypergravity reactor in a specific proportion to carry out the cationic polymerization in the hypergravity field. After the reaction is completed,the product is seperated from the monmer and the diluent. The resulting butyl rubber has a number average molecular weight between 80000 and 300000. The polydispersity (Mw/Mn) of the butyl rubber is in the range of from 1.9 to 3.6.