Ethylene polymerization catalyst

Details Ethylene polymerization catalyst Ethylene polymerization catalyst

C - Chemistry, Metallurgy

08

F

402/638, 252/97

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

Patent

CA 1306239

- 29 - ETHYLENE POLYMERIZATION CATALYST ABSTRACT An ethylene polymerization catalyst comprising: (i) a complex having at least one cation and at least one anion wherein the cation is V2X3(ED)m and the anion is MClbRc wherein X = Cl, Br, or I, or mixtures thereof ED - an electron donor selected from the group consisting of ethers, phosphines, ketones, isocyanides, and esters, each electron donor having 2 to 20 carbon atoms M = Al or Mg R = an alkyl radical having 1 to 14 carbon atoms m = an integer from 3 to 6 b = 2 when M = Al and 3 when M = Mg c = 2 when M = Al and 0 when M = Mg, said complex impregnated on an inorganic oxide support; (ii) a halocarbon promoter; and (iii) a hydrocarbyl aluminum cocatalyst. D-15406

548252

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