ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,179, issued on Oct. 7, was assigned to Guangdong Meihang New Material Technology Co. Ltd. (Qingyuan, China).

"Environment-friendly vinyl ester resin" was invented by Heng Fang (Qingyuan, China), Jie Wei (Qingyuan, China) and Minsi He (Qingyuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an environment-friendly vinyl ester resin, which is prepared by mixing following raw materials in percentage by weight: 20-65 weight percentage (wt %) of epoxy resin, 5-35 wt % of methyl monomer, 8-25 wt % of unsaturated acid, 0.01-0.3 wt % of a catalyst, 0.01-0.08 wt % of polymerization inhibitor and 10-40 wt % of a cross-linking agent."

The p...