US Patent Issued to TOYOBO on July 1 for "Copolymerized polyester resin, molded product, heat-shrinkable film, and fiber" (Japanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,741, issued on July 1, was assigned to TOYOBO Co. LTD. (Osaka, Japan).

"Copolymerized polyester resin, molded product, heat-shrinkable film, and fiber" was invented by Keiichiro Togawa (Shiga, Japan) and Hironao Sasaki (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The aim of the present invention is to provide a copolymerized polyester resin for solving the problem of die staining and foreign matter adhesion to the film etc. in the continuous production of the film etc.; and the problem of recycling property of the copolymerized polyester. This copolymerized polyester resin contains dicarboxylic acid and diol as constituting components...