Process for the bulk polymerization of .alpha.-olefins
AssigneeBayer Aktiengesellschaft
InventorsHubert Sutter, Reinhard Peuker
Life of this patent
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Abstract
Process for the continuous production of a polymer of an .alpha.-olefin monomer. The monomer is polymerized in bulk, employing a screw conveyor as the reactor. The monomer can be in liquid phase when introduced into the conveyor. By the process, the use of diluents is avoided.
Claims18
Process for continuous production of a polymer of an .alpha.-olefin monomer by bulk polymerization which comprises continuously introducing the monomer and a catalyst for the polymerization into the feed end portion of a multi-screw conveyor for transport of the monomer and catalyst in admixture through the conveyor and bulk polymerization of the monomer during said transport, the mixture of monomer and catalyst during said transport being under a pressure of 5-200 bars, the temperature of said monomer during said transport following a rising profile with the temperature adjacent the feed end of said multi-screw conveyor being -50.degree. to 30.degree. C and the temperature adjacent the discharge end thereof being 50.degree. to 200.degree. C.
Dependencies are inferred from the claim text.