Olefine polymerisation catalyst and the production and use...

Details Olefine polymerisation catalyst and the production and use... Olefine polymerisation catalyst and the production and use...

C - Chemistry, Metallurgy

08

F

252/105, 402/584

C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1141367

ABSTRACT A component of a polymerization catalyst is prepared by reacting an organo-magnesium halide with a solid, inorganic oxide, then reacting the product with a Lewis base compound, particularly an ester and finally with titanium tetrachloride. After reacting the organo- magnesium halide with the inorganic oxide it may be treated with a halogenating agent before it is reacted with the Lewis Base compound. The product obtained is combined with a Lewis Vase and used to polymerise an olefine monomer particularly propylene or mixtures of ethylene and 1-olefine containing at least 4 carbon atoms. The catalyst system has a high activity, is stereospecific and has a lower proportion of halogen than some other catalyst systems.

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