Catalyst productivity in the polymerization of olefins

Details Catalyst productivity in the polymerization of olefins Catalyst productivity in the polymerization of olefins

C - Chemistry, Metallurgy

08

F

402/645

C08F 10/00 (2006.01) C08F 2/34 (2006.01) C08F 4/642 (2006.01) C08F 4/655 (2006.01)

Patent

CA 1290894

ABSTRACT Highly stereospecific olefin polymers are obtained in enhanced yield in a continuous gas-phase fluid bed process for polymerizing alpha monoolefins employing a catalyst system comprising (a) a solid titanium-containing procatalyst, (b) an organoaluminum activator compound, and (c) a selectivity control agent, by continuously adding dialkylaluminum halide to the reactor during polymerization and conducting polymerization at a temperature of 0.1 to 5.0°C above the dew point temperature of the cycle gas in the reactor.

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