MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202417056501 A) filed by Sk Chemicals Co. , Ltd. on July 25, 2024, for “method For Manufacturing A Recycled Material Composition”.
Inventors include Kim, Ji-Hun; Ryu, Gayeong; Park, Kwang-Woo; and Lee, Joong Ki.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present invention relates to a process for preparing a recycled raw material composition using depolymerization of waste polyester. The preparation process comprises (1) pretreating a waste polyester with an apparent density of 0.1 kg/L or less to have an apparent density of 0.5 kg/L or more; (2) depolymerizing the pretreated waste polyester...