Solid titanium catalyst composition for production of an olefin polymer or copolymer
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsAkinori Toyota, Norio Kashiwa
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Abstract
A solid titanium catalyst component for the production of olefin polymers or copolymers, comprising titanium, magnesium, halogen and an electron donor as essential ingredients, said component further comprising an inert liquid hydrocarbon in an amount of, based on the weight of said component, of about 1 to about 10% when said component has a uniformity coefficient of at least 4, and about 1 to about 25% when said component has a uniformity coefficient of less than 4.
Claims5
In a solid titanium catalyst component for the production of olefin polymers or copolymers, comprising titanium, magnesium, halogen and an electron donor as essential ingredients and further containing an inert liquid hydrocarbon, the improvement wherein the liquid hydrocarbon is present in an amount of, based on the weight of said component, about 1 to about 10% when said component has a uniformity coefficient of at least 4, and about 1 to about 25% when said component has a uniformity coefficient of less than 4.
The solid titanium catalyst component of claim wherein said content of the inert liquid hydrocarbon is attained by subjecting a solid titanium catalyst component containing said inert liquid hydrocarbon to a drying treatment.
Dependencies are inferred from the claim text.