The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Dec. 08, 2020
Borealis Ag, Vienna, AT;
Mohammad Al-Haj Ali, Porvoo, FI;
Charlotta Weber, Stockholm, SE;
Henry Sleijster, Sittard-Geleen, NL;
Noureddine Ajellal, Porvoo, FI;
Mubashar Sattar, Porvoo, FI;
BOREALIS GMBH, Vienna, AT;
Abstract
A continuous polymerization process includes combining a first hydrocarbon stream with hydrocarbons recycled from at least one downstream process step to a first combined hydrocarbon stream; continuously polymerizing a first olefin monomer and a first comonomer in the presence of a first polymerization catalyst in a solvent to produce a first solution; withdrawing a first exhaust stream of the first solution; separating the first exhaust stream to a first primary hydrocarbon stream and a first concentrated solution stream; recycling the first primary hydrocarbon stream; separating the first concentrated solution stream to a first secondary hydrocarbon stream and a first polymer product stream; recycling the first secondary hydrocarbon stream; and repeating the combining, continuously polymerizing, withdrawing, separating, recycling, separating, and recycling for a second solution.