ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,494, issued on Oct. 21, was assigned to NAN YA PLASTICS Corp. (Taipei, Taiwan).
"Treatment method of waste fabric containing polyester fiber and elastic fiber" was invented by Te-Chao Liao (Taipei, Taiwan), Jung-Jen Chuang (Taipei, Taiwan) and Tzu-Huan Wong (Hualien County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A treatment method of waste fabric containing polyester fiber and elastic fiber is provided. The method includes the steps of using at least one polar solvent to perform at least a two-stage separation treatment on the waste fabric and recycling the waste fabric after the treatment. The at least one polar solvent is selected f...