Process for the polymerization of .alpha.-olefins

Details Process for the polymerization of .alpha.-olefins Process for the polymerization of .alpha.-olefins

1982-06-25

1986-10-14

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502104, 502117, 502133, 502134, 526124, 526125, 526352, 526908, C08F 402, C08F 1000

Patent

active

046173609

ABSTRACT:
Catalyst systems for the polymerization of .alpha.-olefins, as well as process for making and using the same, which comprises an organometallic compound, like an organoaluminum compound, and a solid catalyst complex formed by reacting together at least one compound selected from organic oxygen-containing and halogen-containing compounds of each of the metals of magnesium and titanium and at least one aluminum halide selected from organoaluminum chlorides of formula AlR.sub.n Cl.sub.3-n wherein R is an alkyl radical featuring at least 4 carbon atoms and 1.ltoreq.n.ltoreq.2. Particles of polyolefins of higher average dimension are recoverable, when polymerized in the presence of such catalyst systems.

REFERENCES:
patent: 3718636 (1973-02-01), Stevens et al.
patent: 3901863 (1975-08-01), Berger et al.
patent: 4071674 (1978-01-01), Kashiwa et al.
patent: 4076924 (1978-02-01), Toyota et al.
patent: 4089808 (1978-05-01), Zucchini et al.
patent: 4109071 (1978-08-01), Berger et al.

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