METHOD FOR THE CONTINUOUS PRODUCTION OF POLYISOBUTYLENE

    公开(公告)号:SG11201403143VA

    公开(公告)日:2014-10-30

    申请号:SG11201403143V

    申请日:2013-01-04

    Applicant: BASF SE

    Abstract: Continuous production of polyisobutylene having a content of terminal double bonds of greater than 50% by polymerization of isobutene in the presence of a polymerization catalyst usual therefor, by combining a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream together with a stream of pure isobutene, and feeding the combined stream into the reaction zone in such a manner that the steady state concentration of isobutene in the combined stream at the point where the combined stream is fed into the reaction zone has a value of on average at least 40% by weight, and the invention also relates to a polymerization system therefor.

    5.
    发明专利
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    公开(公告)号:AT495203T

    公开(公告)日:2011-01-15

    申请号:AT06807243

    申请日:2006-10-13

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing polyisobutene having a mean molecular weight Mn of from 400 to 50 000, in particular from 500 to 10 000, by polymerizing isobutene in the presence of a BF3-containing complex catalyst, wherein the polymerization is carried out at least temporarily in the presence of one or more cyclic ethers.

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