US Patent Issued to WUXI HI-TEC ENVIRONMENTAL MATERIAL on Feb. 10 for "Expanded polypropylene bead and preparation method therefor, and molded part" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,773, issued on Feb. 10, was assigned to WUXI HI-TEC ENVIRONMENTAL MATERIAL Co. LTD (Wuxi, China).

"Expanded polypropylene bead and preparation method therefor, and molded part" was invented by Min Zhu (Wuxi, China), Haorui Gao (Wuxi, China), Jia Zeng (Wuxi, China), Huanhuan Liu (Wuxi, China), Fanhui Jiang (Wuxi, China), Ruoxu He (Wuxi, China), Yezhi Xiong (Wuxi, China) and Liangjiong Yang (Wuxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Expanded polypropylene beads are prepared from composite particles using a high-temperature and high-pressure kettle type foaming method. The composite particles include a core layer and a skin layer. The ...