MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202647072423 A) filed by Evonik Operations Gmbh on June 11, 2026, for Method For Recycling A Polyol.
Inventors include Fiedel, Olga; Schweiinger, Emily Clare; Grimm, Thomas; and Fischer, Malte.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: The present invention relates to a method for recycling a polyol, comprising the steps of a) providing a mixture comprising at least one polyol and at least one impurity, wherein said at least one impurity comprises a product resulting from the oxidation of toluene diamines, and/or a product resulting from the depolymerization of a polyurethane product, and b) treating the mixture provided in step a) with a porous, fine-grained solid to give a polyol comprising phase, wherein said phase is at least depleted or even free of the at least one impurity.
Disclaimer: Curated by HT Syndication.
