MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517051413 A) filed by Basf Se, Ludwigshafen am Rhein, Germany, on May 28, for 'value chain return process for the recovery of not bonded additives by extraction from polyurethane or polyisocyanurate rigid foams and depolymerization of the polyurethane rigid foams.'

Inventor(s) include Schaub, Thomas; Telkemeyer, Daniel; Mattke, Torsten; Schuette, Markus; Hashmi, A. Stephen K.; and Klein, Philippe.

The application for the patent was published on June 13, under issue no. 24/2025.

According to the abstract released by the Intellectual Property India: "The present invention is directed to a value chain return process for polyurethane and polyisocyanu...