US Patent Issued to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude on May 20 for "Low pressure process for synthesis of Pt(PF 3 ) 4 involving a soluble intermediate and storage of obtained Pt(PF 3 ) 4" (American, French Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,922, issued on May 20, was assigned to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Low pressure process for synthesis of Pt(PF 3 ) 4 involving a soluble intermediate and storage of obtained Pt(PF 3 ) 4" was invented by Grigory Nikiforov (Branchburg, N.J.) and Nicolas Blasco (Paris).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for synthesis of Pt(PF3)4 (CAS #19529-53-4), the method comprising the steps of forming a suspension of a platinum precursor Pt(Hal)2, wherein Hal=F, Cl, Br or I, and a metal powder in a solvent, introducing excess amount of PF3 into the suspension of Pt(Hal)2 and...