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Title:
PRODUCTION OF CONJUGATED DIENE POLYMER
Document Type and Number:
Japanese Patent JPS59142211
Kind Code:
A
Abstract:

PURPOSE: To obtain the titled polymer having a principal structure of a trans 1,4 bond in high yields, by polymerizing a conjugated diene compound in the presence of a catalyst comprising a solid catalyst component containing an Mg compound and a Ti (III) compound and an organoaluminum compound.

CONSTITUTION: A solid catalyst component containing a magnesium compound and a titanium (III) compound is prepared by, for example, a method comprising dissolving a titanium (III) compound (e.g., titanium trichloride) in an organic solvent (e.g., toluene) and contacting the solution with a solid magnesium compound (e.g., magnesium chloride). A conjugated diene polymer having a trans 1,4-bond as a principal structure and a limiting viscosity ≤10dl/g is obtained by polymerizing a conjugated diene compound (e.g., butadiene or isoprene) in the presence of a catalyst prepared by combining the above solid catalyst component with an organoaluminum compound (e.g., diethylaluminum chloride).


Inventors:
Nakamura, Toshio
Onuma, Hiroshi
Makino, Kenya
Ito, Tadahiko
Application Number:
JP1983000014612
Publication Date:
August 15, 1984
Filing Date:
February 02, 1983
Export Citation:
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Assignee:
JAPAN SYNTHETIC RUBBER CO LTD
International Classes:
C08F4/00; C08F4/42; C08F4/52; C08F4/60; C08F4/64; C08F36/00; C08F136/04; (IPC1-7): C08F4/52; C08F4/64; C08F136/04
Domestic Patent References:
1976-06-10



 
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