Metal halide catalyst, method of producing the catalyst, polymer

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...

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502110, 502111, 502117, 502119, 502125, 502127, 526125, C08F 4654

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active

051807025

ABSTRACT:
A polymerization catalyst is formed by producing a solution of a Group IIA or Group IIB halide and an alcohol; contacting the solution with an organometallic compound to form a soluble complex; and contacting the soluble complex with a halide ion exchanging source. An ester or an anhydride can also be combined with the halide solution or the soluble complex. The catalyst thus produced can be combined with an organometallic cocatalyst.

REFERENCES:
patent: 3642746 (1972-02-01), Kashiwa
patent: 3812089 (1974-05-01), Tashiro
patent: 4006101 (1977-02-01), Matsuura
patent: 4410451 (1983-10-01), Dietz et al.
patent: 4855271 (1989-08-01), McDaniel et al.
patent: 4988655 (1991-01-01), Mitchell et al.
patent: 5024982 (1991-06-01), Hawley et al.
"Modification of Catalysts for Propylene Polymerization: Alcohols and Lewis Bases", Journal of Polymer Science: Polymer Chemistry Edition, vol. 22, 3739-3746 (Sivak and Kissin 1984).

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