MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202617090200 A) filed by Teijin Frontier Co. , Ltd. on July 24, 2026, for Method For Recovering Polyester And Method For Manufacturing Recycled Polyester Polymer.
Inventors include Kawasaki Keita; Tsuruda Ryo; and Sunouchi Satoshi.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: Provided is a method for recovering polyester from a fiber product containing dye-colored polyester fibers and acrylic fibers, the method being characterized by comprising: a solvent contact step in which the fiber product is brought into contact with an aprotic polar solvent at a temperature of 30-160°C; and an acrylic fi...