US Patent Issued to SHPP Global Technologies on Sept. 30 for "High comparative tracking index polycarbonate compositions with improved flame retardant and hydro-stability properties" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,558, issued on Sept. 30, was assigned to SHPP Global Technologies B.V. (Bergen op Zoom, Netherlands).

"High comparative tracking index polycarbonate compositions with improved flame retardant and hydro-stability properties" was invented by Keran Chen (Shanghai), Xing Liu (Shanghai) and Yun Zheng (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Polycarbonate compositions include: (a) from about 45 wt % to about 90 wt % of a polycarbonate homopolymer; (b) from about 1 wt % to about 25 wt % of a polycarbonate copolymer; (c) from about 0.1 wt % to about 20 wt % of a first flame retardant component including a brominated flame retardant; (d) fro...