Process for the homo- and copolymerization of .alpha.-olefins

Details Process for the homo- and copolymerization of .alpha.-olefins Process for the homo- and copolymerization of .alpha.-olefins

1981-04-01

1983-06-07

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526124, 526352, 526909, C08F 402, C08F 1000

Patent

active

043872018

ABSTRACT:
A new catalyst for the homo- and copolymerization of .alpha.-olefins by a Ziegler type catalysis is described, the catalyst being prepared by reaction of a titanium (IV) compound with a carrier substance in the presence of a solution of at least about 0.1 weight percent of an atactic poly-.alpha.-olefin followed by reduction of the reaction product with an organoaluminum compound in an inert inorganic solvent and activation with an organoaluminum compound. The novel catalyst is useful in the preparation of extremely high molecular weight polyolefins of fine grained structures.

REFERENCES:
patent: 3400110 (1968-09-01), Danesse et al.
patent: 3404096 (1968-10-01), Lamborn
patent: 3575948 (1971-04-01), Blunt
patent: 3723403 (1973-03-01), Greaver et al.
patent: 4133944 (1979-01-01), Cooper et al.
patent: 4250284 (1981-02-01), Delbouille et al.
patent: 4302567 (1981-11-01), Bahadir et al.
Haward et al., Polymer (1973), vol. 14, Aug.

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