US Patent Issued to BASF on Dec. 30 for "Asphalt composition comprising a mixture of an isocyanate and a polymer as performance additives" (American, German Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,586, issued on Dec. 30, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Asphalt composition comprising a mixture of an isocyanate and a polymer as performance additives" was invented by Michael Praw (Conroe, Texas), Waldemar Schatz (Lemfoerde, Germany), Arlis A. Kadrmas (Charlotte, N.C.), William J. Kirk (Charlotte, N.C.), James T. Andrews (Charlotte, N.C.), Iran Otero Martinez (Lemfoerde, Germany), Bernie Lewis Malonson (Wyandotte, Mich.) and Olivier Fleischel (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An asphalt composition comprising 0.1 to 8 wt.-% based on the total weight of the composition of an I...