ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,760, issued on Feb. 10, was assigned to DIC Corp. (Tokyo).
"Urethane resin composition, film, and synthetic leather" was invented by Yayi Tseng (Osaka, Japan) and Ryo Maeda (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using, as raw materials, a polycarbonate polyol (A-1) produced using biomass-derived decanediol as a raw material, and a polycarbonate polyol (A-2) produced using a biomass-derived dihydroxy compound having a cyclic ether structure as a raw material. The p...