Catalyst for (co) polymerization of ethylene, aplha-olefines, co

Details Catalyst for (co) polymerization of ethylene, aplha-olefines, co Catalyst for (co) polymerization of ethylene, aplha-olefines, co

1976-10-29

1979-07-17

Niebling, John

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431N, 252431C, 252421P, B01J 3102, B01J 3112

Patent

active

041614623

ABSTRACT:
A catalyst for the (co)polymerization of ethylene, .alpha.-olefines, conjugated and non-conjugated dienes, a method of preparation and a mode of using same. The catalyst contains from 0.1 to 50 wt.% of a compound of a transition metal of the IV-VIII Groups chemically combined and distributed over the surface and within the volume of a rubber-like polymeric carrier containing from 1 to 50 wt.% of electron donor and/or electron-acceptor groups and is in the form of a gel which is swellable, but insoluble in the reaction medium.
A co-catalyst comprising an organic compound of a metal of Groups I-III is employed chemically combined and/or non-combined with the catalyst.
The catalyst is prepared by mixing the metal compound with said carrier swollen or dissolved in a solvent, and by extracting the resulting compound with a solvent.
(Co)polymerization is effected in a solvent such as a hydrocarbon or a hologenatedhydrocarbon derivative at a temperature not exceeding 200.degree. C. under a pressure ranging from 0 to 100 atm by separating the catalyst from the (co)polymer during or after the reaction and recycling it back to the (co)polymerization.

REFERENCES:
patent: 3553181 (1971-01-01), Delbouille
patent: 3600367 (1971-08-01), Delbouille
patent: 3645993 (1972-02-01), Sunseri
patent: 3737474 (1973-06-01), Dunn

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