US Patent Issued to Evonik Operations on July 1 for "Process for producing polymethyl methacrylate rigid foams as core materials in rotor blades of wind power plants and in boatbuilding" (German Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,908, issued on July 1, was assigned to Evonik Operations GmbH (Essen, Germany).

"Process for producing polymethyl methacrylate rigid foams as core materials in rotor blades of wind power plants and in boatbuilding" was invented by Thomas Richter (Darmstadt, Germany), Christoph Seipel (Babenhausen, Germany), Vincent Ma Junyong (Darmstadt, Germany), Florian Becker (Darmstadt, Germany) and Lisa Langel (Mannheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "PMMA-based rigid foams can be used as the core material of sandwich components in rotor blades of wind power plants and in boatbuilding."

The patent was filed on June 24, 2020, under Applic...