ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,789, issued on June 10, was assigned to ZHEJIANG JAVA SPECIALTY CHEMICALS Co. LTD (Shaoxing, China).
"Preparation method of fluoropolymer processing aid" was invented by Liqun Xu (Shaoxing, China), Xianfu Yi (Shaoxing, China), Wenping Peng (Shaoxing, China), Shuangbin Chen (Shaoxing, China), Liuwen Tang (Shaoxing, China), Hanchao Zhao (Shaoxing, China) and Liyong Qiu (Shaoxing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation method of a fluoropolymer processing aid. The preparation method comprises the following steps: simultaneously adding Epsilon-caprolactone and a fluoropolymer elastomer into a reactor, and heating to completel...