High efficiency catalyst for polymerizing olefins

Details High efficiency catalyst for polymerizing olefins High efficiency catalyst for polymerizing olefins

1978-09-05

1980-04-15

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 252431R, 252431C, 252430, 252428, 526115, C08F 464

Patent

active

041983157

ABSTRACT:
Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins, particularly higher olefins, are prepared by reacting tetravalent or trivalent titanium compounds such as a titanium tetralkoxide, an anhydrous nickel compound such as nickel chloride, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum and a halide source such as a hydrogen halide or an alkyl aluminum halide. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics and these catalysts produce polymers having broader molecular weight distributions than do corresponding catalysts without the anhydrous nickel compound.

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