ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,777, issued on July 14, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing) and SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC (Shanghai).
"Catalyst for addition reaction of alkylene oxide and use thereof" was invented by Fengping Yu (Shanghai), Wenjun He (Shanghai) and Ming Jin (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a catalyst for an addition reaction of alkylene oxide, the catalyst comprises a nanocomposite ion-exchange resin having a structural formula of P-Im+-M-, wherein P is a nanocomposite resin matrix, Im+ is a cation derived from 5-6 membered heterocycle containing at...