Process for the polymerization or copolymerization of ethylene

Details Process for the polymerization or copolymerization of ethylene Process for the polymerization or copolymerization of ethylene

C - Chemistry, Metallurgy

08

F

402/638, 402/644

C08F 10/02 (2006.01) C08F 2/00 (2006.01) C08F 4/62 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1185050

ABSTRACT OF THE DISCLOSURE Polymeriztion of ethylene or copolymerization of ethylene with other .alpha.-olefin is carried out in the presence of a specific catalyst system. The catalyst system is obtained by preparing a reaction product (A) of an organic aluminum compound (I) represented by the formula AlR?X3-n where R1 is hydrogen or an alkyl group having from 1 to 10 carbon atoms, X is Cl or Br and n is a number satisfying 0<n<3, with a mixture of a straight chain aliphatic alcohol and branched chain aliphatic alcohol or a cyclic alcohol, separately preparing a reaction product (B) of an organic magnesium compound with a hydropolysiloxane or an silicone compound in which organic groups and hydroxyl groups are bonded to silicon atoms, reacting the reaction product (A) with the reaction product (B) to produce a reaction product (C), reacting the reaction product (C) with a halogen- containing titanium or vanadium compound to obtain a solid product (D) and mixing the solid product (D) with an organic aluminum compound (II).

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