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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.:

US 12473320 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

May. 20, 2020

Catalyst system

Applicant:

Borealis Ag, Vienna, AT;

Inventors:

Luigi Maria Cristoforo Resconi, Linz, AT;

Wilfried Toeltsch, Linz, AT;

Ville Virkkunen, Porvoo, FI;

Kalle Kallio, Porvoo, FI;

Soile Lustig, Porvoo, FI;

Noureddine Ajellal, Porvoo, FI;

Marja Mustonen, Porvoo, FI;

Alexander Reznichenko, Porvoo, FI;

Assignee:

BOREALIS AG, Vienna, AT;

Attorney:

Meunier Carlin & Curfman LLC

Primary Examiner:

Anthony J Zimmer

Assistant Examiner:

Zachary John Baum

Int. Cl.
CPC ...
C07F 17/00 (2006.01); C08F 4/649 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 10/06 (2006.01); C08F 110/06 (2006.01);
U.S. Cl.
CPC ...
C07F 17/00 (2013.01); C08F 4/6492 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 4/65927 (2013.01); C08F 10/06 (2013.01); C08F 110/06 (2013.01); C08F 2420/00 (2013.01); C08F 2420/08 (2021.01); C08F 2500/12 (2013.01); C08F 2500/17 (2013.01); C08F 2500/34 (2021.01); C08F 2500/35 (2021.01); C08F 2800/10 (2013.01);
Abstract

A specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst, its use for producing propylene homopolymers, propylene copolymers, especially with ethylene, as well as heterophasic propylene copolymers, preferably in a multistep process including a gas phase polymerization step.

Find Patent Forward Citations

Resconi, Luigi Maria Cristoforo. (2025). Catalyst system (U.S. Patent No. 12473320). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12473320

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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