Inventor

GAI YUGUO

CN2 patents

Patents

2 patents

US10975020B2Apr 13, 2021

Process for quenching a gaseous reaction mixture obtained in the gas phase phosgenation of diamines

COVESTRO DEUTSCHLAND AG0 citations44

US11020720B2Jun 1, 2021

Method for cleaning phosgene-conducting apparatuses

COVESTRO DEUTSCHLAND AG0 citations39