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:
Jul. 19, 2022
Filed:
Nov. 20, 2017
Shi Yin, Zhejiang, CN;
Other;
Abstract
A method of manufacturing a high-strength synthetic fiber utilizing high-temperature multi-sectional drawing, two-stage high-temperature multi-sectional drawing, or multi-stage high-temperature multi-sectional drawing. The method comprises the following steps: performing, on a synthetic resin, melt spinning or melt extrusion, cooling, multi-sectional high-temperature drawing, heat setting and a fiber surface treatment, wherein the multi-sectional high-temperature drawing comprises independently adjusting temperatures at a front section and a rear section of an furnace, and the temperature at the rear section is higher than that at the front section. The temperature adjustment is performed on different locations in the furnace and according to a crystallization orientation of a fiber molecular chain, significantly increasing fiber strength. The method is widely applicable to manufacturing of various types of fibers, enhancing application performance of the fibers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile