31.
    发明专利
    未知

    公开(公告)号:BR0314360A

    公开(公告)日:2005-07-05

    申请号:BR0314360

    申请日:2003-09-18

    Applicant: BASF AG

    Abstract: A process for the preparation of polyisobutene containing at least 75 mol % of terminal vinylidene groups, in which isobutene or an isobutene-containing hydrocarbon mixture is polymerized in the liquid phase in the presence of a boron trifluoride complex catalyst having the composition a(BF3):b(Co1):c(Co2) where Co1 is at least one tertiary alcohol, Co2 is at least one compound selected from water, primary alcohols, secondary alcohols, dialkyl ethers, alkanecarboxylic acids and phenols, the ratio c:b is from 0.9 to 1.8 and the ratio (b+c):a is from 0.9 to 3.0, is described.

    METHOD FOR THE PRODUCTION OF POLYISOBUTENE

    公开(公告)号:AU2003266397A1

    公开(公告)日:2004-04-19

    申请号:AU2003266397

    申请日:2003-09-18

    Applicant: BASF AG

    Abstract: A process for the preparation of polyisobutene containing at least 75 mol % of terminal vinylidene groups, in which isobutene or an isobutene-containing hydrocarbon mixture is polymerized in the liquid phase in the presence of a boron trifluoride complex catalyst having the composition a(BF3):b(Co1):c(Co2) where Co1 is at least one tertiary alcohol, Co2 is at least one compound selected from water, primary alcohols, secondary alcohols, dialkyl ethers, alkanecarboxylic acids and phenols, the ratio c:b is from 0.9 to 1.8 and the ratio (b+c):a is from 0.9 to 3.0, is described.

    35.
    发明专利
    未知

    公开(公告)号:DE10207963A1

    公开(公告)日:2003-09-04

    申请号:DE10207963

    申请日:2002-02-25

    Applicant: BASF AG

    Abstract: alpha-Chloroisopropyl-substituted aromatics are obtained in high yield by treating isopropenyl-substituted aromatics with hydrogen chloride gas in the absence of a solvent. The alpha-chloroisopropyl-substituted aromatics serve as initiators for the cationic polymerization of isobutene.

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