Title:
USE OF LEWIS BASE FOR ACTIVITY REDUCTION IN METALLOCENECATALYZED OLEFIN POLYMERIZATION PROCESS
Document Type and Number:
Japanese Patent JPH0725925
Kind Code:
A
Abstract:
PURPOSE: To provide a method whereby the activity of an olefin polymn. reaction using a metallocene/aluminoxane catalyst can be controlled and, if necessary the reaction can be completely terminated and can be restarted at will.
CONSTITUTION: A Lewis base contg. an available electron pair capable of forming a dative bond with both a metallocene and an aluminoxane is added to the reaction zone of an olefin polymn. catalyst. Thus, the activity of an olefin polymn. reaction is reduced or the reaction is completely terminated, and, if neessary, the activity of the reaction is restored or the reaction is restarted by adding an additional cocatalyst.
Inventors:
ROBAATO KONBAASU BUREIDEII ZA
KEBIN JIYOZEFU KIYAN
FUREDERITSUKU JIYON KARORU
KEBIN JIYOZEFU KIYAN
FUREDERITSUKU JIYON KARORU
Application Number:
JP16752194A
Publication Date:
January 27, 1995
Filing Date:
June 28, 1994
Export Citation:
Assignee:
UNION CARBIDE CHEM PLASTIC
International Classes:
C08F4/642; C08F2/40; C08F4/60; C08F10/00; C08F4/659; C08F4/6592; C08F210/16; (IPC1-7): C08F4/642; C08F10/00
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)
Next Patent: PRODUCTION OF POLYOLEFIN