ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,938, issued on April 8, was assigned to BASF SE (Ludwigshafen Am Rhein, Germany).
"Polyethylene or polypropylene articles" was invented by Tania Weyland (Kaisten, Switzerland), Heinz Herbst (Kaisten, Switzerland) and Marie Laure Bertet (Levallois-Perret, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An article in the form of a pipe, cable or geomembrane comprising polyethylene or polypropylene, and components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is magnesium hydroxide which is present in an amount of 0.01% to 5% by weight relative to the weight of the polyethylene or...