Process for producing terpolymers of propylene, ethylene and...

Details Process for producing terpolymers of propylene, ethylene and... Process for producing terpolymers of propylene, ethylene and...

C - Chemistry, Metallurgy

08

F

402/381, 402/418

C08F 210/16 (2006.01) C08F 210/06 (2006.01)

Patent

CA 1151799

ABSTRACT OF THE DISCLOSURE A process for producing terpolymers of propylene (as a main monomer), ethylene and another .alpha.-olefin having superior and well-balanced physical properties, almost without forming soluble polymer is provided. This process is characterized by preliminarily activating a catalyst consisting of a titanium trichloride composition and a specified organoaluminum halide, with a small amount of an .alpha.-olefin of 2 to 12 carbon atoms, a trialkylaluminum and an aromatic ester, and copoly- merizing specified amounts of propylene, ethylene and an .alpha.-olefin of 4 to 12 carbon atoms in the presence of the preliminarily activated catalyst obtained above.

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