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:
Feb. 03, 2026
Filed:
Dec. 03, 2020
Applicant:
Borealis Ag, Linz, AT;
Inventors:
Jingbo Wang, Linz, AT;
Markus Gahleitner, Linz, AT;
Klaus Bernreitner, Linz, AT;
Joachim Fiebig, Linz, AT;
Henk Van Paridon, Averbode, BE;
Wilhelmus Sars, Tilburg, BE;
Gustaf Tobieson, Stenungsund, SE;
Assignee:
BOREALIS AG, Vienna, AT;
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); C08F 4/6592 (2006.01); C08F 10/06 (2006.01); D01F 6/06 (2006.01); D04H 1/56 (2006.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); C08F 4/65927 (2013.01); C08F 10/06 (2013.01); D01F 6/06 (2013.01); D04H 1/565 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/1291 (2013.01); D10B 2321/022 (2013.01);
Abstract
The present invention relates to filtration media made from melt-blown fibers having improved barrier properties. The melt-blown fibers in the filtration media of the invention are made of a visbroken metallocene-catalyzed propylene homopolymer composition with specified melting temperature Tm and molecular weight distribution (MWD).