US Patent Issued to PTT Global Chemical on Dec. 16 for "Catalyst composition for cyclic carbonate production from CO 2 and epoxides" (Thai Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,575, issued on Dec. 16, was assigned to PTT Global Chemical Public Co. Ltd. (Chatuchak, Thailand).

"Catalyst composition for cyclic carbonate production from CO 2 and epoxides" was invented by Jiraya Kiriratnikorn (Pakkret, Thailand), Kunnigar Vongnam (Nonsang, Thailand), Nopparat Thavornsin (Pakkred, Thailand), Pornpen Sae-Ung (Muangnakornpathom, Thailand), Sophon Kaeothip (Chatuchak, Thailand), Anucha Euapermkiati (Chatuchak, Thailand) and Khamphee Phomphrai (Buengkum, Thailand).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to catalyst composition for cyclic carbonate production from CO2 and epoxides under mild condit...