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Title:
PRODUCTION OF RUBBER-LIKE OLEFIN COPOLYMER
Document Type and Number:
Japanese Patent JPS58217507
Kind Code:
A
Abstract:

PURPOSE: To produce a rubber-like olefin copolymer in high yield, by copolymerizing ethylene with an α-olefin with the aid of a catalyst comprising a fine powder of a titanium-containing solid complex which is formed by a specified method and an organoaluminum compound.

CONSTITUTION: A solution containing titanium trichloride is formed by dissolving titanium tetrachloride in a halohydrocarbon solvent containing an ether compound (e.g., di-n-butyl ether) and reducing the titanium tetrachloride with an organoaluminum compound, hydrogen or the like (alternatively, titanium trichloride may be solubilized directly with the help of a phosphorus compound having an ether or P=O bond, e.g., triethyl phosphate). Then, a uniform solution containing magnesium chloride and a P=O bond-containing phosphorus compound is mixed with the above titanium trichloride solution, and fine powder of a solid complex is precipitated by the addition of a precipitant (e.g., TiCl4 or AlEtCl2). This solid complex is combined with an organoaluminum compound to form a catalyst.


Inventors:
MAKINO KENYA
SAKURAI HIDEO
SUZUKI YOSHIHIRO
Application Number:
JP1982000099955
Publication Date:
December 17, 1983
Filing Date:
June 12, 1982
Export Citation:
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Assignee:
JAPAN SYNTHETIC RUBBER CO LTD
International Classes:
C08F4/00; C08F4/60; C08F4/64; C08F4/654; C08F210/00; C08F210/16; (IPC1-7): C08F4/64; C08F210/16