US Patent Issued to CHENGDU 401 TECHNOLOGY on Feb. 24 for "Continuous polymerization method for nylon" (Chinese Inventor)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,591, issued on Feb. 24, was assigned to CHENGDU 401 TECHNOLOGY Co. LTD. (Sichuan, China).

"Continuous polymerization method for nylon" was invented by Yang Li (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A continuous polymerization method for nylon. Polymerization starting materials comprise, in parts by mass, 5-60 parts of polymerization monomer dibasic acid and/or dibasic acid ester, 3-50 parts of diamine, and 10-90 parts of reactive dispersion medium polyamide. Polymerization steps comprise: continuously adding the polymerization starting materials into a material mixing device in proportion, so that the raw materials are mixed and re...