公开(公告)号：JPH1171415A

公开(公告)日：1999-03-16

申请号：JP18748298

申请日：1998-07-02

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  LUTZ GERALD DR ,  LANGHAUSER FRANZ DR

IPC: B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F2/38 ,  C08F4/648 ,  C08F4/659 ,  C08F10/00 ,  C08F10/06 ,  C08F297/08

Abstract: PROBLEM TO BE SOLVED: To provide a polymerization method of 2-8C alk-1-ene with a Ziegler- Natta catalyst composition for reducing or completely inhibiting coagulation the formation of deposition and sludge of the polymer particles. SOLUTION: A 2-8C 1-alkene is polymerized in the presence of a Ziegler- Natta catalyst composition in a cascade comprising at least two reactors. In a reactor 1, which may be linked to one or a plurality of reactors in the upstream, homopolymer or copolymer of l-alkenes is formed. The polymerization reaction mixture is discharged form the reactor l, and transferred to the subsequent reactor 2. The polymerization in the reactor 2 and the reactors that may be linked to the reactor 2 is carried out in the presence of a liquid or dissolved controlling agent for control the catalytic activity. The controlling agent is discharged from the reactor l and then added to the polymerization reaction mixture prior to being introduced in the reactor 2.

公开(公告)号：DE19728141A1

公开(公告)日：1999-01-07

申请号：DE19728141

申请日：1997-07-02

Applicant: BASF AG

Inventor： KERSTING MEINOLD DR ,  LUTZ GERALD DR ,  LANGHAUSER FRANZ DR

IPC: B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F2/38 ,  C08F4/648 ,  C08F4/659 ,  C08F10/00 ,  C08F10/06 ,  C08F297/08 ,  C08F210/02 ,  C08F210/06