Title:
POLYMERIZATION OF ALPHA-OLEFIN
Document Type and Number:
Japanese Patent JP3279352
Kind Code:
B2
Abstract:
PURPOSE: To obtain a highly stereoregular polymer in high yields by polymerizing an α-olefin in the presence of a mixture prepared by contacting a polymerization catalyst component of a specified composition with a 4 C or higher olefin monomer.
CONSTITUTION: A polymerization catalyst component comprising a solid titanium catalyst component consisting essentially of magnesium, titanium, halogen and an alkoxyester compound of the formula (wherein R1, R2, R3 and R4 are each a hydrocarbon group; Z is an aliphatic hydrocarbon group the hydrogen atoms of which may be replaced with aromatic hydrocarbon groups; i, j and k are each 0-3; and the sum of i, j and k is 1 or greater) (e.g. methyl methoxyacetate), an organoaluminum compound (e.g. triethylaluminum) and an electron-donating compound (e.g. ethyl benzoate) with a 4 C or higher olefin monomer (e.g. 1- butene), and an o-olefin (e.g. ethylene) is polymerized in the presence of the obtained polymerization catalyst component.
Inventors:
Hisayoshi Yanagihara
Minoru Suzuki
Hirotoshi Takahashi
Minoru Suzuki
Hirotoshi Takahashi
Application Number:
JP23490692A
Publication Date:
April 30, 2002
Filing Date:
September 02, 1992
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
C08F4/658; C08F4/60; C08F4/654; C08F10/00; (IPC1-7): C08F4/654; C08F10/00
Domestic Patent References:
| JP4185613A | ||||
| JP3265610A | ||||
| JP641229A | ||||
| JP656924A | ||||
| JP625342A | ||||
| JP625341A |
Attorney, Agent or Firm:
Masatake Shiga (8 outside)
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