US Patent Issued to Borealis on March 25 for "Polyethylene composition for high pressure resistant pipes with improved homogeneity" (Austrian, Finnish Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,465, issued on March 25, was assigned to Borealis AG (Vienna).

"Polyethylene composition for high pressure resistant pipes with improved homogeneity" was invented by Yi Liu (Linz, Austria), Victor Sumerin (Provoo, Finland) and Qizheng Dou (Linz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a polyethylene composition comprising a base resin having a density of from 952.0 kg/m3 to 960.0 kg/m3, determined according to ISO 1183, wherein the polyethylene composition has a melt flow rate MFR21 (190deg C., 21.16 kg), of from 1.0 to 7.5 g/10 min, determined according to ISO 1133, a complex viscosity at a frequency...