ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,574, issued on March 3, was assigned to KINGFA SCI. & TECH. Co. LTD. (Guangdong, China).
"Laser marking and shading enhanced PBT composition and preparation method and use thereof" was invented by Wenjie Mo (Guangdong, China), Xianbo Huang (Guangdong, China), Nanbiao Ye (Guangdong, China), Wen Zhu (Guangdong, China), Dejun Gong (Guangdong, China), Jian Feng (Guangdong, China) and Xuejun Fu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a laser marking shading enhanced PBT composition, comprising, in parts by weight, the following components: 50-80 parts of a PBT resin, 6-20 parts of an opacifying agent, 15-30 parts of f...