Title:
【発明の名称】高反応性ポリイソブテンの製法
Document Type and Number:
Japanese Patent JP2003513119
Kind Code:
A
Abstract:
Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.
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Inventors:
Hans Peter Rat
Dieter Hahn
Gerhard Zandrock
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Application Number:
JP2001533864A
Publication Date:
April 08, 2003
Filing Date:
October 27, 2000
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
C08F2/04; C08F2/06; C08F4/14; C08F2/00; C08F6/02; C08F6/12; C08F10/10; C08F110/10; (IPC1-7): C08F2/00; C08F4/14; C08F10/10
Domestic Patent References:
| JPH11506492A | 1999-06-08 |
Attorney, Agent or Firm:
Toshio Yano (4 outside)