US Patent Issued to Borealis on June 2 for "Polypropylene composition containing a new charge-stabilizing agent for electret melt blown webs" (Austrian, Dutch, Swedish, Belgian, Finnish Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,990, issued on June 2, was assigned to Borealis AG (Vienna).

"Polypropylene composition containing a new charge-stabilizing agent for electret melt blown webs" was invented by Jingbo Wang (Linz, Austria), Markus Gahleitner (Linz, Austria), Klaus Bernreitner (Linz, Austria), Joachim Fiebig (Linz, Austria), Henk Van Paridon (Beringen, Belgium), Wilhelmus Sars (Geleen, Netherlands), Gustaf Tobieson (Stenungsund, Sweden) and Pauli Leskinen (Porvoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polypropylene composition (PC) comprising: a. from 95.0 to 99.99 wt.-%, of a polypropylene (PP), preferably a propylene homopolymer (HPP); and b. from 0...