US Patent Issued to LANXESS on Oct. 27 for "Method of preparing phosphorus-containing flame retardants and their use in polymer compositions" (Connecticut Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,414, issued on Oct. 27, was assigned to LANXESS Corp. (Pittsburgh).

"Method of preparing phosphorus-containing flame retardants and their use in polymer compositions" was invented by Julia Yue Lee (Naugatuck, Conn.), Simon J. Bonyhady (Waterbury, Conn.), Qingliang He (Cheshire, Conn.) and Ramesh Sharma (Cheshire, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A phosphorus-containing flame retardant is produced by preparing a reaction mixture, the reaction mixture including a phosphonic acid, a solvent for the phosphonic acid, and a metal or suitable metal compound, and reacting the phosphonic acid and the metal or suitable metal compound under...