Ethylene copolymerization catalyst

Details Ethylene copolymerization catalyst Ethylene copolymerization catalyst

C - Chemistry, Metallurgy

08

F

402/559, 252/97

C08F 4/76 (2006.01) C08F 2/02 (2006.01) C08F 4/68 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2004720

- 20 - ETHYLENE COPOLYMERIZATION CATALYST Abstract of the Invention A catalyst composition comprising: (i) a complex comprised of V2X3(ED)m and AlC12R2 wherein X = C1 Br, or I, or mixtures thereof ED = an electron donor, which is an ether, a phosphine, a ketone, an isocyanide, or an ester, said electron donor having 2 to 20 carbon atoms R = an alkyl having up to 14 carbon atoms m = an integer from 3 to 6, said complex impregnated into an inorganic oxide support; (ii) sufficient trialkylaluminum compound adsorbed on the inorganic oxide support to provide a molar ratio of adsorbed trialkylaluminum compound to vanadium of about 2.5:1 to about 10:1; (iii) a halocarbon promoter; and (iv) a hydrocarbyl aluminum cocatalyst. D-15579

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