Titanium trichloride catalyst and process for the production the

Details Titanium trichloride catalyst and process for the production the Titanium trichloride catalyst and process for the production the

1978-07-25

1980-12-23

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252441, 526142, 526144, C08F 464

Patent

active

042409284

ABSTRACT:
A titanium trichloride catalytic complex is produced by reducing titanium tetrachloride with an alkylaluminum halide composition at low temperature and then treating the resulting reduced solids product by contacting it at elevated temperature with a dialkyl ether having alkyl groups of 4 to 5 carbon atoms and with hexachloroethane, the proportion of dialkyl ether being at least 1 mol per 1 mol of hexachloroethane and the proportion of hexachloroethane being at least greater than about 0.5 mol per 1 gram atom of titanium in the reduced solids product. The resulting titanium trichloride complex composition, when employed as co-catalyst with an organo-metal compound for Ziegler-type catalysts in polymerization of .alpha.-olefins, results in uniform polymer grains with unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.

REFERENCES:
patent: 3825524 (1974-07-01), Wada et al.

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