ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,330, issued on Oct. 21, was assigned to WACKER CHEMIE AG (Munich).
"Composition treated by silicone and its use" was invented by Dmitry Davydov (Moskwa, Russia), Wei Cai (Burghausen, Germany), Fanghua Lei (Shanghai) and Zheng Li (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the use of an additive which is an aqueous system of specific polyether silicones in clinker and cement preparation. The additive improves the grinding efficiency and also results in an improvement in the cured properties of cementitious compositions employing cement so produced."
The patent was filed on Dec. 12, 2019, under Applicatio...