US Patent Issued to CHINA PETROLEUM & CHEMICAL, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CHINA PETROLEUM & CHEMICAL on Nov. 18 for "Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,387, issued on Nov. 18, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing) and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CHINA PETROLEUM & CHEMICAL Corp. (Beijing).

"Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative" was invented by Rong Gao (Beijing), Zifang Guo (Beijing), Junling Zhou (Beijing), Dongbing Liu (Beijing), Jie Fu (Beijing), Jingjing Lai (Beijing), Tingjie Huang (Beijing), Shiyuan Xu (Beijing) and Xinyang Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation method for a copolymer includes the step(s) of contacting an olefin and an unsaturated carboxylic acid ...