Phillips Petroleum Company

Other

Charles E Capshew

Richard E Dietz

M Bruce Welch

Joel L Martin

Floyd E Farha, Jr

Melvin B Welch

Nemesio D Miro

James N Short

A highly active catalyst suitable for the polymerization of olefins and its use are disclosed, said catalyst being prepared by

Supported polyolefin catalyst components and methods of making and using

Catalysts effective for the polymerization of olefins at high productivity formed upon mixing (1) a solution of a titanium tetrahydrocarbyloxide or a zirconium tetrahydrocarbyloxide and an organoaluminum halide with (2) a dihydrocarbylmagnesium compound alone or admixed with a minor amount of a trialkylaluminum and (3) combining the product obtained in (2) with a metal halide selected from a silicon tetrahalide and a titanium tetrahalide. The catalyst component thus produced can be combined with an organoaluminum compound as a cocatalyst component.

Olefin polymerization

A transition metal compound such as titanium tetrahydrocarbyloxides and a metal hydrocarbyloxide compound such as magnesium hydrocarbyloxides are chemically combined to form a first catalyst component which is treated with a second catalyst component comprising an organometallic compound precipitating agent to produce an active olefin polymerization catalyst. High polymer yields are realized per gram of catalyst when the catalyst thus produced is treated with a halide ion exchanging source and used with an organometallic cocatalyst.

Polymerization catalyst and process

A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is mixed with a precipitating agent to form an active olefin polymerization catalyst. The catalyst can be further treated with a halide ion exchanging source to form an active olefin polymerization catalyst. Prepolymer is deposited on the catalyst(s) in an amount effective to reduce polymer fines when the catalyst(s) are used in polymerization processes.

Catalyst, method of producing the catalyst, and polymerization process

Catalysts effective for the polymerization of olefins at high productivity formed upon mixing (1) a solution of titanium tetrahydrocarbyloxide or a zirconium tetrahydrocarbyloxide and an organoaluminum halide with (2) a dihydrocarbylmagnesium compound alone or admixed with a minor amount of a trialkylaluminum and (3) combining the product obtained in (2) with a metal halide selected from a silicon tetrahalide and a titanium tetrahalide. The catalyst component thus produced can be combined with an organoaluminum compound as a cocatalyst component.

A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is rapidly mixed with a precipitating agent to form an active olefin polymerization catalyst.

A process and catalyst for the polymerization of olefins wherein the catalyst comprises the product obtained by reacting a complex of a magnesium dihalide and a tetraalkyl titanate with the product resulting from a reaction between an organometallic compound and a hydroxyl-containing carrier such as silica and then reacting that product with a titanium halide.

Alpha-olefin polymerization

A transition metal compound and a metal halide compound selected from metal dihalide compounds and metal hydroxyhalide compounds are chemically combined to form a composition of matter. The composition of matter is suitable for use with an organometallic compound to produce an active olefin polymerization catalyst. Exceptionally high polymer yields are realized per gram of catalyst when the catalyst is treated with a halide ion exchanging source and used with an organometallic cocatalyst.

Composition of matter and method of preparing same, catalyst, method of

A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is rapidly mixed with a precipitating agent to form an active olefin polymerization catalyst under an olefin atmosphere and prepolymer is formed on said catalyst to yield a catalyst capable of producing low fines content polymer.

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Bartlesville, OK, United States of America

Charles E Capshew