Olefine polymer, olefine polymerisation process and catalyst

Details Olefine polymer, olefine polymerisation process and catalyst Olefine polymer, olefine polymerisation process and catalyst

B - Operations, Transporting

01

J

252/107, 402/641

B01J 31/38 (2006.01) C08F 4/76 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1054131

ABSTRACT OF THE DISCLOSURE An olefine polymerisation catalyst comprises a titanium trichloride component of high surface area, an organo- metallic component, a Lewis Base component and optionally a polyene. The TiCl3 component which may have a high porosity i conveniently obtained by the reaction of TiCl4 and an organo- aluminium compound, treating the reaction product with a complexing agent and then contacting this product with TiCl4. The organo- metallic component is preferably aluminium triethyl, the Lewis Base component hexamethyl-phosphoric triamide and the polyene is cycloheptatriene. This system has high polymerisation activity combined with good stereospecificity. Polypropylene can be obtained in high yield thereby giving low catalyst residues and the polymer has a high stiffness modulus.

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