Process for the preparation of copolymers of ethylene with at le

Details Process for the preparation of copolymers of ethylene with at le Process for the preparation of copolymers of ethylene with at le

1981-07-10

1984-03-06

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526141, 526143, 502154, C08F 468, C08F21016, C08F21018

Patent

active

044355521

ABSTRACT:
Process for the preparation of copolymers consisting of 25-85% by wt. of ethylene, 15-75% by wt. of at least one other 1-alkene and optionally up to 20% by wt. of a polyunsaturated compound with application of a catalyst system containing a compound of a metal from sub-groups IV-VI of the periodic system and a compound of a metal from groups I-III of the periodic system, in which at least one hydrocarbon group is bound directly to the metal atom via a carbon atom, the polymerization being carried out in the presence of a halogen-containing compound of the general formula ##STR1## where A is a phenyl group which may contain one or two substituent halogen atoms or alkyl groups, or is a thienyl, furyl, pyrollyl, N-alkylpyrollyl or pyridyl group, which group is bound to the carbon atom directly or via a carbonyl group,

REFERENCES:
patent: 3629212 (1971-12-01), Benedikter et al.
patent: 3678018 (1972-07-01), Yasui et al.
patent: 3717613 (1973-02-01), Ichikawa et al.
patent: 3723348 (1973-03-01), Apotheker et al.
Christman, Journal of Polymer Sciences, Pt. A-1, vol. 10, pp. 471-487 (1972).

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