Process for the production of polyolefins

Details Process for the production of polyolefins Process for the production of polyolefins

C - Chemistry, Metallurgy

08

F

402/644

C08F 4/64 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 1124949

ABSTRACT .alpha.- Olefin polymers and copolymers of an average molecular weight of 50,000 to 1,000,000 and S values of 7 to 13 are prepared by a process for the polymerization of ethylene or copolymerization of ethylene with a C3 to C15 alpha olefin in solution, in suspension or in the gas phase at 20 to 250°C and 1 to 100 bars in the presence of a mixed catalyst comprising a separately produced halogen-containing titanium (III) compound and an organo- aluminum compound while controlling the molecular weight with oxygen, and wherein a mixture of organoaluminum compounds is employed comprising a halogen- containing aluminum alkyl compound and a trialkyl aluminum compound in a molar ratio of 1:0.05 to 1:20, the combined amount of organoaluminum compounds being present in an amount of 0.1 to 20 moles per mole of halogen-containing Ti(III) compound.

334432

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