Process for producing propylene copolymer

Details Process for producing propylene copolymer Process for producing propylene copolymer

C - Chemistry, Metallurgy

08

F

402/418, 402/604

C08F 4/64 (2006.01) C08F 210/06 (2006.01)

Patent

CA 1152697

ABSTRACT OF THE DISCLOSURE In a process for producing propylene copolymer containing about 80 to 99 mol% propylene and about 1 to 20 mol% ethylene and/or an .alpha.-olefin having 4 to 18 carbon atoms using a Ziegler- Natta catalyst, the improvement which comprises said Ziegler- Natta catalyst comprising: (A) titanium trichloride prepared by reducing titanium tetrachloride with an organoaluminum compound and activating the product; and (B) an organoaluminum compound; with the molar ratio of (B)/(A) being about 20 to 100.

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