ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,875, issued on Sept. 16, was assigned to Borealis AG (Vienna).
"Long-chain branched propylene polymer composition" was invented by Jingbo Wang (Linz, Austria), Markus Gahleitner (Linz, Austria), Pauli Leskinen (Porvoo, Finland), Klaus Bernreitner (Linz, Austria) and Katja Ellen Klimke (Linz, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a xylene hot insolubles (XHU) fraction in an amount of less than 1.0%, based on 5 the total weight amount of the propylene polymer compositio...