Patent · US Active

Process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor controlled by a model based predictive controller

US8710160B2 · kind B2 · utility

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12Claims

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Assignee

Basell Polyolefine GmbH · DE

Inventors

Christian Schmidt · Bonn, DE
Klaus Berhalter · Bornheim, DE
Steve Makin · Keene, US
Kevin J. Taylor · Longview, US

Key dates

Filing date	Dec 20, 2010
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Dec 20, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2400/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Process for the preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiator at from 100° C. to 350° C. and pressures in the range of from 160 MPa to 350 MPa in a high-pressure polymerization unit comprising a high-pressure reactor with one or more reaction zones, to each of which free-radical polymerization initiator is fed, which is controlled by a model based predictive controller carrying out the steps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.