ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,532, issued on Oct. 6, was assigned to SHANDONG UNIVERSITY (Shandong, China).
"Polytetrafluoroethylene porous fiber and manufacturing and modifying process thereof" was invented by Guilong Wang (Jinan, China) and Jialong Chai (Jinan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polytetrafluoroethylene porous fiber and a manufacturing and modifying process thereof including: blending a PTFE raw material, a processing aid, a modifying filler and the like with certain shear strength by using a blending device; extruding the blend through a die head, drawing, and feeding the blend into a spinning roller for stretching and spinning; feeding the ...