US Patent Issued to Wacker Chemie on Oct. 20 for "Method of preparing alkyl functionalized polysiloxane" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,764, issued on Oct. 20, was assigned to Wacker Chemie AG (Munich).

"Method of preparing alkyl functionalized polysiloxane" was invented by Heng Yang (Shanghai), Shuai Tian (Shanghai) and Xiong Zang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing alkyl functionalized polysiloxane, comprising: I) reacting silane oligomer with hydroxyl-terminated polysiloxane in the presence of Catalyst 1, and II) reacting the product of Step (I) with an endcapper in the presence of Catalyst 2. This method could flexibly adjust the polymerization degree and viscosity of the desired long-chain alkyl functionalized polysiloxane for differen...