ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,871, issued on Aug. 12, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"Composition useful for the preparation of polyurethane foams" was invented by Bang Wei Xi (Shanghai), YingHao Liu (Shanghai), Zhen Peng Liang (Guangzhou, China), Jin Lin Liu (Shanghai), Bo Chen (Shanghai), Ben Ben Shen (Shanghai) and Zi Song Zhu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a polyurethane foam prepared with certain polytetrahydrofurans and optional polyether polyols. The polyurethane foam is characterized by low hardness increase at low temperature as compared with conventional polyurethane foam, and is suitable for use ...