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:
Jul. 01, 2025
Filed:
Sep. 20, 2019
Applicant:
Borealis Ag, Vienna, AT;
Inventors:
Torvald Vestberg, Porvoo, FI;
Markku Vahteri, Porvoo, FI;
Anna Fait, Linz, AT;
Pauli Leskinen, Porvoo, FI;
Jingbo Wang, Linz, AT;
Assignee:
BOREALIS AG, Vienna, AT;
Primary Examiner:
Int. Cl.
CPC ...
C08F 110/06 (2006.01); C08L 23/12 (2006.01);
U.S. Cl.
CPC ...
C08F 110/06 (2013.01); C08L 23/12 (2013.01); C08F 2410/06 (2021.01); C08F 2500/18 (2013.01); C08L 2205/025 (2013.01);
Abstract
The present invention relates to a process for producing a prepolymerized solid Ziegler-Natta catalyst in batch mode, a prepolymerized solid Ziegler-Natta catalyst, a process for producing a propylene polymer using said prepolymerized solid Ziegler-Natta catalyst, a prepolymerized solid Ziegler-Natta catalyst obtained by a process as well as the use of the prepolymerized solid Ziegler-Natta catalyst in a process for producing a propylene polymer.