Verfahren zur Herstellung von hochreaktiven Polyisobutenen

摘要

The invention relates to a method for the continuous production of polyisobutenes by cationic polymerization of isobutenes and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst preferably selected from oxygen-containing compounds, whereby the BF3/cocatalyst complex is generated in situ in reaction stream by addition of BF3 and a cocatalyst. The invention is characterized in that BF3 and said oxygen-containing cocatalyst are added to the reaction stream via a common two-material nozzle with an outlet for BF3 and an outlet for said oxygen-containing cocatalyst. The invention also relates to a two-material nozzle with a centrally located outlet for the catalyst.