Polymeric gel catalyst for polymerization of .alpha.-olefines, c

Details Polymeric gel catalyst for polymerization of .alpha.-olefines, c Polymeric gel catalyst for polymerization of .alpha.-olefines, c

1978-02-27

1980-01-08

Lilling, Herbert J.

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

Synthetic resins

Removing and recycling removed material from an ongoing...

252429B, 525328, 525329, 525334, 526336, 525356, 525370, 526139, 526140, 526141, 526142, 526144, 526153, 526159, 5261691, 5261692, 526335, 526348, 5263482, 526351, 526352, 526904, C08F 402, C08F11000, C08F11002, C08F13606

Patent

active

041828119

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 hologenated hydrocarbon 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: 2927103 (1960-03-01), Schneider et al.
patent: 3553181 (1971-01-01), Delbouille et al.
patent: 3553287 (1971-01-01), Delbouille et al.
patent: 3594330 (1971-07-01), Delbouille et al.
patent: 3600367 (1971-08-01), Delbouille et al.

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