Polyisobuten-Zusammensetzung

摘要

A polyisobutene composition is disclosed with a global maximum for the differential molecular weight distribution curve at a molecular weight Mmax of 3500 to 8000, with at last one local maximum at a molecular weight of 112 to 560. The isobutene oligomers present are flow and boiling auxiliary agents. They are applied to high molecular weight isobutene polymers, preferably before or during a distillation, to remove non-reacted isobutene and/or an inert solvent.