Title:
POLYMERIZATION OF 11OLEFIN
Document Type and Number:
Japanese Patent JPS5686908
Kind Code:
A
Abstract:
In the polymerization of I-olefins using a solid catalyst component composed of a titanium halide deposited on an essentially anhydrous, magnesium halide support and an activator component composed of a trialkylaluminum and a lower alkyl ester of an aromatic carboxylic acid, the decay in activity of the catalyst is delayed by replacing a portion of the trialkylaluminum in the activator component with a dialkylaluminum hydride, whereby to provide a mole ratio of total aluminum to ester of from 3:1 to 4:1 and a mole ratio of dialkylaluminum hydride to ester of from 0.5:1 to 1.5:1.
Inventors:
UENDERU FUIRITSUPU RONGU
Application Number:
JP16063180A
Publication Date:
July 15, 1981
Filing Date:
November 14, 1980
Export Citation:
Assignee:
HERCULES INC
International Classes:
C08F4/00; C08F4/60; C08F4/658; C08F10/00; (IPC1-7): C08F4/02; C08F4/64; C08F10/00