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:
Nov. 18, 2025
Filed:
May. 20, 2020
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:
Primary Examiner:
Assistant Examiner:
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.