Catalysts for polymerizing olefins to spheroidal-form polymers

Details Catalysts for polymerizing olefins to spheroidal-form polymers Catalysts for polymerizing olefins to spheroidal-form polymers

1976-09-17

1978-09-05

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429B, 252441, 526125, C08F 402, C08F 410

Patent

active

041118359

ABSTRACT:
Supported catalysts for the high-yield polymerization of olefins to polymers which occur in spheroidal form are disclosed. The catalysts are prepared from starting components which comprise (a) organometallic compounds of metals belonging to Groups II or III of the Mendelyeev Periodic Table and (b) a product obtained by reacting a halogenated Ti compound with a Mg hydrate chloride in the form of spheroidal particles having controlled dimensions comprised between 10 and 70 microns.

REFERENCES:
patent: 3594330 (1971-07-01), Delbouille et al.
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3859231 (1975-01-01), Kochhar et al.
patent: 3953414 (1976-04-01), Galli et al.

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