公开(公告)号：CA1144696A

公开(公告)日：1983-04-12

申请号：CA366032

申请日：1980-12-03

Applicant: STANDARD OIL CO OHIO

Inventor： BENTON KENNETH C ,  UEBELE CURTIS E ,  WHITE JAMES F ,  WEINERT RAYMOND J JR

IPC: C08F4/00 ,  C08F2/14 ,  C08F4/60 ,  C08F10/00 ,  C08F10/06 ,  C08F2/00

Abstract: This invention relates to a process for polymerizing alpha-olefins in the presence of a Ziegler-type catalyst wherein at least one of dichloroethane, dichloropropane and chlorine gas is added to the process after the polymerization has been initiated. This invention is especially useful when the olefin is propylene and the catalyst is a titanium trichloride complex.