US Patent Issued to Agency for Science, Technology and Research on March 3 for "Halogen-free synergist" (Singaporean Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,563, issued on March 3, was assigned to Agency for Science, Technology and Research (Singapore).

"Halogen-free synergist" was invented by Junhua Kong (Singapore), Songlin Liu (Singapore), Suxi Wang (Singapore), Qi Feng Lim (Singapore), Beng Hoon Maureen Janet Tan (Singapore) and Chaobin He (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polymer having a backbone and a side unit of 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide bonded thereto, where the backbone of the polymer includes at least one heterocyclic moiety. There is also provided a process for producing the polymer as defined herein as well as a flame retardant polyolefin ...