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. 20, 2021
Filed:
Jul. 27, 2018
Jiangsu Hengli Chemical Fibre Co., Ltd., Wujiang, CN;
Hongwei Fan, Wujiang, CN;
Yiwei Shao, Wujiang, CN;
Lixin Yin, Wujiang, CN;
Fangming Tang, Wujiang, CN;
JIANGSU HENGLI CHEMICAL FIBRE CO., LTD., Wujiang, CN;
Abstract
A low-shrinkage polyester industrial yarn and a preparation method thereof are provided. The preparation method includes the following steps: subjecting the modified polyester to polycondensation, melting, measuring, extruding, cooling, oiling, stretching, heat setting and winding, wherein the content of the crown ether in the oil agent is 67.30-85.58 wt %. The material of the prepared low shrinkage polyester industrial yarn is a modified polyester, the molecular chain of the modified polyester includes a terephthalic acid segment, an ethylene glycol segment, and a branched diol segment, and the structural formula of the branched diol is as follows: Wherein Rand Rare each independently selected from a linear alkylene group having 1-3 carbon atoms, Ris selected from an alkyl group having 1-5 carbon atoms, and Ris selected from an alkyl group consisting of 2-5 carbon atoms.