ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,186, issued on June 17, was assigned to SABIC GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).
"Process for producing polypropylene composition" was invented by Jose Sales Fernandez (Geleen, Netherlands), Ronald Julianus Peter Schipper (Geleen, Netherlands) and Willy Joseph Dijsselbloem (Geleen, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a process for producing a polypropylene composition using a first extruder comprising successive zones comprising a first zone, a second zone, a third zone and a fourth zone and a second extruder comprising successive zones comprising a first zone and a second zone, th...