Process for polymerization of .alpha.-olefins and catalysts ther

Details Process for polymerization of .alpha.-olefins and catalysts ther Process for polymerization of .alpha.-olefins and catalysts ther

1983-03-07

1983-10-11

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526351, 526906, 502162, C08F 402, C08F 1006

Patent

active

044093780

ABSTRACT:
Stereospecific polymerization of .alpha.-olefins is carried out with use of a catalyst system comprising an activated titanium compound, an organoaluminum compound and an electron donative compound. The activated titanium compound is obtained by copulverizing magnesium halide, a halongenated hydrocarbon and an orthocarboxylic acid ester and then treating the copulverized product with titanium halide.

REFERENCES:
patent: 4180636 (1979-12-01), Hirota et al.
patent: 4220745 (1980-09-01), Tanaka et al.
patent: 4242231 (1980-12-01), Ueno et al.
patent: 4252929 (1981-02-01), Kuroda et al.

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