ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,568, issued on July 8, was assigned to NATIONAL UNIVERSITY COPORATION KOBE UNIVERSITY (Hyogo, Japan) and MITSUBISHI GAS CHEMICAL COMPANY INC. (Tokyo).
"Method for producing carbonate derivative" was invented by Akihiko Tsuda (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently even without using a base. The method for producing a carbonate derivative according to the present invention is characterized in comprising the step of irradiating a high energy light to a composition comprising the halogenated methane and the hydroxy grou...