US Patent Issued to BASF on Sept. 23 for "Polyethylene pipe" (Swiss, French Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,379, issued on Sept. 23, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Polyethylene pipe" was invented by Tania Weyland (Kaisten, Switzerland), Marie Laure Bertet (Levallois-Perret, France) and Heinz Herbst (Kaisten, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyethylene pipe comprising components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a natural or synthetic hydrotalcite and the weight ratio of component A) to component B) is 1:10 to 10:1."

The patent was filed on July 3, 2018, under Application No. 16/627,499.

*For further information, in...