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:
Apr. 21, 2015
Filed:
Feb. 17, 2012
Dezhen Wu, Beijing, CN;
Hongqing Niu, Beijing, CN;
Shengli Qi, Beijing, CN;
Enlin Han, Beijing, CN;
Xiaona Yan, Beijing, CN;
Guofeng Tian, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Dezhen Wu, Beijing, CN;
Hongqing Niu, Beijing, CN;
Shengli Qi, Beijing, CN;
Enlin Han, Beijing, CN;
Xiaona Yan, Beijing, CN;
Guofeng Tian, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Beijing University of Technology, Beijing, CN;
Abstract
Methods for making high quality polyimide fibers suitable for continuous industrial production are described. Polyimide fibers are continuously prepared from a polyamic acid solution through sequentially spinning the polyamic acid solution by either a wet or a dry-wet process, coagulating, drying or drying after washing, thermally treating and stretching the resulting polyamic acid fibers to obtain polyimide fibers, and winding polyimide fibers as prepared into rolls.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile