US Patent Issued to COVESTRO INTELLECTUAL PROPERTY on April 15 for "Method for the recycling of polyurethane material waste for producing chemical feedstock for the production of isocyanates and polyurethanes" (German Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,689, issued on April 15, was assigned to COVESTRO INTELLECTUAL PROPERTY GMBH & Co. KG (Leverkusen, Germany).

"Method for the recycling of polyurethane material waste for producing chemical feedstock for the production of isocyanates and polyurethanes" was invented by Andreas Bulan (Langenfeld, Germany) and Rainer Weber (Odenthal, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for recycling polyurethane material waste (18a) for producing chemical feedstock for the production of isocyanates (10a) and then polyurethanes (16a), in which method, proceeding from polyurethane material waste (18a), carbon dioxide (1a...