The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Jan. 25, 2024
Shandong University, Jinan, CN;
Guilong Wang, Jinan, CN;
Jialong Chai, Jinan, CN;
SHANDONG UNIVERSITY, Shandong, CN;
Abstract
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 stretched blend fiber into a solvent pool for washing and etching or high-temperature ablation; and drying, annealing and other treatments of the obtained PTFE porous fiber before collection. According to the process, continuous manufacturing of the PTFE fiber with the micro-nano porous structure is achieved, and in-situ modification is conducted on the fiber to avoid complex post-treatment steps. The process is flexible, the production is efficient and low-cost, and the product has adjustable fineness and length, lower density and good air permeability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile