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:
Mar. 22, 2022
Filed:
Oct. 23, 2018
Borealis Ag, Vienna, AT;
Hanna-Leena Rönkkö, Porvoo, FI;
Kumudini Jayaratne, Porvoo, FI;
Timo Leinonen, Tolkkinen, FI;
Peter Denifl, Linz, AT;
Borealis AG, Vienna, AT;
Abstract
The present invention relates to A Ziegler-Natta catalyst component in the form of solid particles having a median a particle size (D50) of 5 to 200 μm and comprising i) a compound of Group 1 to 3, preferably of Group 2 metal, IUPAC, Nomenclature of Inorganic Chemistry, 1989 ii) a compound of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6, IUPAC, Nomenclature of Inorganic Chemistry, 1989 and iii) an internal electron donor, wherein the solid particles a have a numerical SPAN of 0.80 or below and a ratio of numerical mode to volumetric mode (Mode/Mode) of 0.60 or more and we Wherein Mode<Mode. The invention also relates to a process for producing said catalyst component and use thereof producing Cto Cα-olefin polymers, especially propylene or ethylene polymers or copolymers thereof with α-olefins of 2 to 12 C-atoms.