US Patent Issued to TORAY INDUSTRIES on Sept. 1 for "Diol composition and polyester" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,130, issued on Sept. 1, was assigned to TORAY INDUSTRIES Inc. (Tokyo).

"Diol composition and polyester" was invented by Masateru Ito (Kamakura, Japan), Izumi Morita (Tokai, Japan), Kenji Kawamura (Kamakura, Japan), Tetsuya Yamada (Kamakura, Japan), Sadanori Kumazawa (Nagoya, Japan) and Katsushige Yamada (Kamakura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diol composition includes 1) 95% by weight or more of a diol, the diol being selected from the group consisting of ethylene glycol, 1,3-propanediol, 1,2-propanediol, 1,3-butanediol, 1,4-butanediol and 2,3-butanediol, and 2) impurities derived from biomass in an amount sufficient to cau...