US Patent Issued to SINOROAD TRANSPORTATION SCIENCE AND TECHNOLOGY on March 11 for "Two-stage epoxy bonding oil, preparation method and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,143, issued on March 11, was assigned to SINOROAD TRANSPORTATION SCIENCE AND TECHNOLOGY Co. LTD. (Nanjing, China).

"Two-stage epoxy bonding oil, preparation method and application thereof" was invented by Zhixiang Zhang (Nanjing, China), Kuan Li (Nanjing, China), Youqiang Pan (Nanjing, China), Lifeng Chen (Nanjing, China) and Hui Zhang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-stage epoxy bonding oil includes a main agent A and a curing agent B in a weight ratio of 1:1 to 3:1. The curing agent B includes 70 to 90 parts of a linear bifunctional secondary amine curing agent, 10 to 30 parts of a high-melting-point latent cur...