US Patent Issued to BASF on April 29 for "Pipe weight coating" (Canadian, American Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,664, issued on April 29, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Pipe weight coating" was invented by Chris Lacarte (Toronto), Staci L. Wegener (Wyandotte, Mich.), Jian Ying Zang (Toronto) and Lyle Caillouette (Wyandotte, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are novel and improved weight coating systems suitable for use with pipes, particularly pipes that are submerged in liquid, such as water, in environments including oceans, seas, marshes, lakes and rivers. The novel coating systems provided herein comprise an aggregate and a polyurethane binder, wherein the polyurethane binder is a two-component ...