ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,400, issued on June 17, was assigned to SABIC GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).
"Polypropylene film with increased hydrophobicity" was invented by Karin Irene van de Wetering (Bergen op Zoom, Netherlands) and Xiqiang Liu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a multi-layer polypropylene film comprising: A base layer of polypropylene (2); Optionally, a tie layer (3) comprising a blend of polypropylene and an sacrificial engineering thermoplastic; A top layer (1) comprising film having a structured surface with water contact angles (WCA) superior to 104.5deg, preferentially super...