公开(公告)号：DE3144135A1

公开(公告)日：1983-05-19

申请号：DE3144135

申请日：1981-11-06

Applicant: BASF AG

Inventor： IMMEL WOLFGANG DIPL ING DR ,  FAUTH KARL-HEINZ ING GRAD ,  OTTERBACH HANS DIPL ING DR ,  SCHWARTZ ERICH DIPL CHEM DR

IPC: C10L1/16 ,  C10L1/04 ,  C10L1/06 ,  C10L1/08

公开(公告)号：DE3008389A1

公开(公告)日：1981-09-17

申请号：DE3008389

申请日：1980-03-05

Applicant: BASF AG

Inventor： MUELLER-TAMM HEINZ DIPL CHEM D ,  IMMEL WOLFGANG DIPL ING DR ,  MOHR HEINRICH DIPL CHEM DR ,  FAUTH KARL-HEINZ ING GRAD

IPC: C08F8/50 ,  C08F110/10 ,  C08K5/15

公开(公告)号：DE3010870A1

公开(公告)日：1981-10-01

申请号：DE3010870

申请日：1980-03-21

Applicant: BASF AG

Inventor： FAUTH KARL-HEINZ ING GRAD ,  MOHR HEINRICH DIPL CHEM DR ,  IMMEL WOLFGANG DIPL ING DR

IPC: C08F2/06 ,  C08F4/14 ,  C08F110/10

Abstract: A process for the preparation of polyisobutylene by polymerizing isobutylene in a polymerization zone which is at from 0 DEG to -130 DEG C., by means of from 0.01 to 1.0 percent by weight of boron trifluoride catalyst, in the presence of a primary or secondary alcohol as polymerization accelerator and in the presence of from 30 to 90% by weight of a low-boiling solvent which is inert under the reaction conditions, wherein the solvent vaporized during the polymerization is continuously drawn off, liquefied and recycled, in the liquid state, to the polymerization zone, and wherein the boron trifluoride catalyst used contains less than 0.3, in particular less than 0.01, percent by volume of silicon tetrafluoride and the solvent, which is preferably ethylene, is recycled not less than twice but not more than 36 times during the continuous polymerization.

公开(公告)号：DE2936361A1

公开(公告)日：1981-04-02

申请号：DE2936361

申请日：1979-09-08

Applicant: BASF AG

Inventor： MOHR HEINRICH DIPL CHEM DR ,  IMMEL WOLFGANG DIPL ING DR ,  FAUTH KARL-HEINZ ING GRAD

IPC: C08F2/06 ,  C08F4/14 ,  C08F4/16 ,  C08F110/10