Titanium halide catalyst system

Details Titanium halide catalyst system Titanium halide catalyst system

1980-06-27

1982-08-31

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431C, 252431N, 252431P, 526125, C08F 464

Patent

active

043471609

ABSTRACT:
A novel catalyst system for the polymerization of alpha-olefins is provided. The catalyst system comprises: (a) an organoaluminum containing component, e.g. triethyl aluminum, and (b) a titanium halide containing component. The titanium halide containing component is obtained by co-pulverizing a halogen containing magnesium compound, e.g. MgCl.sub.2, with an electron-donor compound, e.g. ethyl benzoate, to produce a co-pulverized product. The co-pulverized product is then reacted with an organic phosphite, e.g. triphenyl phosphite, to produce a reaction product. The reaction product is then reacted with a titanium halide compound, e.g. TiCl.sub.4.
A novel titanium halide containing component is provided as well as a process for producing said component. A process for the polymerization of alpha-olefins is also provided.

REFERENCES:
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3784481 (1974-01-01), Lassau et al.
patent: 3953414 (1976-04-01), Galli et al.
patent: 4130503 (1978-12-01), Fodor
patent: 4143223 (1979-03-01), Toyota et al.
patent: 4180636 (1979-12-01), Hirota et al.
patent: 4221894 (1980-09-01), Ushida et al.

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