Process for polymerizing olefins and catalyst therefor

Details Process for polymerizing olefins and catalyst therefor Process for polymerizing olefins and catalyst therefor

1980-09-02

1982-01-19

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 416

Patent

active

043118178

ABSTRACT:
A process for polymerizing or copolymerizing an .alpha.-olefin in the presence of a catalyst composed of (A)' a transition metal catalyst component resulting from supporting a halogen-containing transition metal compound on spray-dried solid spherical particles of a magnesium compound and (B)' an organometallic compound of a metal of Groups I to III of the periodic table, wherein the transition metal catalyst component (A)' is a catalyst component (A) prepared by supporting the halogen-containing transition metal compound on solid spherical particles having a specific surface area of at least 20 m.sup.2 /g and an average particle diameter of 5 to 300.mu. obtained by spray-drying a suspension of an oxygen-containing, halogen-free magnesium compound having an average particle diameter of 0.01 to 20.mu., and a catalyst composition for use therein.

REFERENCES:
patent: 3644318 (1972-02-01), Diedrich et al.
patent: 3759884 (1973-09-01), Tokuzumi et al.
patent: 3772261 (1973-11-01), Faltings et al.
patent: 3839313 (1974-10-01), Galli
patent: 3892717 (1975-07-01), Mori et al.
patent: 3953414 (1976-04-01), Galli
patent: 4098979 (1978-07-01), Maemoto et al.

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