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. 06, 2021
Filed:
Jul. 27, 2018
Jiangsu Hengli Chemical Fibre Co., Ltd., Wujiang, CN;
Hongwei Fan, Wujiang, CN;
Guanfan Jin, Wujiang, CN;
Ming Chen, Wujiang, CN;
Huailin Ren, Wujiang, CN;
Yongfeng Wang, Wujiang, CN;
Xiangming Wang, Wujiang, CN;
JIANGSU HENGLI CHEMICAL FIBRE CO., LTD., Wujiang, CN;
Abstract
A one-step spun composite DTY and preparation method thereof are provided. The bi-profiled fiber is manufactured with two types of modified polyester of different viscosities through the steps of melting, melt metering, composite extruding, cooling, oiling, drawing, heat setting and winding. Wherein those two modified polyesters have a molecular structure including terephthalic acid segments, ethylene glycol segments and branched diol segments, and the branched diol has a structural formula of