ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,666, issued on July 8, was assigned to NAN YA PLASTICS Corp. (Taipei, Taiwan).

"Manufacturing method of polymer material" was invented by Te-Chao Liao (Taipei, Taiwan), Ching-Yao Yuan (Taipei, Taiwan) and Wei Tang Liao (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method of a polymer material at least includes the following steps. A raw material including polyethylene terephthalate is provided. An alcoholysis reaction is performed by using the raw material with aliphatic diols to form an intermediate product, wherein the intermediate product includes bis 2-hydroxyethyl terephthalate. A polymerization reaction is perfo...