公开(公告)号：DE3565545D1

公开(公告)日：1988-11-17

申请号：DE3565545

申请日：1985-12-13

Applicant: BASF AG

Inventor： FUNK GUIDO DR ,  STAIGER GERHARD DR ,  SCHWEIER GUNTHER DR

IPC: C08F4/16 ,  C08F4/64 ,  C08F10/00 ,  C08F10/02

公开(公告)号：DE3612376A1

公开(公告)日：1987-10-15

申请号：DE3612376

申请日：1986-04-12

Applicant: BASF AG

Inventor： MUELLER-MALL RUDOLF DR ,  FUNK GUIDO DR ,  BACHL ROBERT DR ,  HENNENBERGER PETER DR ,  KOLK ERICH DR

IPC: C08F2/06 ,  C08F2/14 ,  C08F2/18 ,  C08F10/02 ,  C08F210/16

Abstract: A process for the continuous preparation of finely divided homopolymers and copolymers of ethene by catalytic polymerization in a circular tube reactor using a liquid alkane as reaction medium in which the ethene or ethene/comonomer mixture to be polymerized is present in dissolved form and the polymer formed is present in suspended form and running the reaction mixture as a cycle stream to which the feed materials are added by bleeding in and from which the polymer formed is withdrawn by bleeding out reaction mixture, comprising (a) maintaining the mean concentration Cm of polymer in the cycle stream at a value within a certain range and (b) effecting the bleeding out of reaction mixture at a point of the cycle stream at which the concentration of polymer has a value which is lower than the mean concentration Cm by a distinct and definite amount.

公开(公告)号：DE3446776A1

公开(公告)日：1986-07-03

申请号：DE3446776

申请日：1984-12-21

Applicant: BASF AG

Inventor： FUNK GUIDO DR ,  SCHWEIER GUENTHER DR

IPC: C08F4/16 ,  C08F4/64 ,  C08F10/00 ,  C08F10/02 ,  C08F4/52

公开(公告)号：DE3446775A1

公开(公告)日：1986-07-03

申请号：DE3446775

申请日：1984-12-21

Applicant: BASF AG

Inventor： FUNK GUIDO DR ,  KLAERNER PETER DR ,  HENNENBERGER PETER DR ,  SCHWEIER GUENTHER DR ,  VOGT HEINZ DR

IPC: C08F4/16 ,  C08F4/64 ,  C08F10/02 ,  C08F4/52