US Patent Issued to IDEMITSU KOSAN on June 10 for "Method for producing polyphenol derivative, polyphenol derivative, and polyphenol derivative-containing resin composition material" (Japanese Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,775, issued on June 10, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Method for producing polyphenol derivative, polyphenol derivative, and polyphenol derivative-containing resin composition material" was invented by Yoshihito Koyama (Chiba, Japan) and Hironori Tashiro (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a polyphenol derivative, including reacting a polyphenol-containing composition and an aromatic compound having an ortho-para directionality in a solvent, a polyphenol derivative produced by the method for producing a polyphenol derivative, and a polyphenol derivative-containing resin composition ...