US Patent Issued to Entegris on July 28 for "Oleophobic fluoropolymers and filter materials prepared therefrom" (Chinese, American Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,332, issued on July 28, was assigned to Entegris Inc. (Billerica, Mass.).

"Oleophobic fluoropolymers and filter materials prepared therefrom" was invented by Mei Feng He (Hangzhou, China), Dongzhu Wu (Hangzhou, China), Yunjia Xia (Hangzhou, China) and Kwok-Shun Cheng (Nashua, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides an improved process for preparing oleophobic fluoropolymers. The resulting fluropolymers were found to be effective in imparting hydrophobic and oleophobic properties to porous polymeric membranes such as PTFE. The treated PTFE membrane can reach an oleophobic level of 6 or above, (according to the AATC...