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:
Apr. 09, 2019
Filed:
Aug. 29, 2012
Peter Denifl, Helsinki, FI;
Pirjo Jaaskelainen, Porvoo, FI;
Timo Leinonen, Tolkkinen, FI;
BO Malm, Espoo, FI;
Anders E. Nymark, Porvoo, FI;
Torvald Vestberg, Porvoo, FI;
Peter Denifl, Helsinki, FI;
Pirjo Jaaskelainen, Porvoo, FI;
Timo Leinonen, Tolkkinen, FI;
Bo Malm, Espoo, FI;
Anders E. Nymark, Porvoo, FI;
Torvald Vestberg, Porvoo, FI;
BOREALIS AG, , AT;
Abstract
Process for producing of a capacitor film comprising the steps of (a) polymerizing propylene in the presence of a catalyst comprising a solid catalyst system obtaining a polypropylene, (b) subjecting said polypropylene to a film forming process obtaining a capacitor film, wherein during the polymerization step (a) said catalyst comprising the solid catalyst system fragments into nanosized catalyst fragments being distributed in said polypropylene, said solid catalyst system comprises a transition metal, a metal which is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor.