Process for the manufacture of a catalyst

Details Process for the manufacture of a catalyst Process for the manufacture of a catalyst

1975-02-27

1977-02-08

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526 90, C08F 464

Patent

active

040071324

ABSTRACT:
A catalyst of high activity and stereospecificity in .alpha.-olefin polymerization is obtained by subjecting titanium trichloride, prepared from titanium tetrachloride by reduction with aluminum alkyl halides, to two thermal treatments, the second one being carried out in the presence of an dialkyl ether and a cyclopolyene, and/or after-treating the solid reaction product with an aluminum alkyl halide, optionally in the presence of a small amount of a cyclopolyene and/or an olefin.

REFERENCES:
patent: 2914515 (1959-11-01), Stuart
patent: 3029231 (1962-04-01), VAN Amerongen
patent: 3058970 (1962-10-01), Rust et al.
patent: 3394118 (1968-07-01), Boor
patent: 3864278 (1975-02-01), La Heij et al.

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