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. 27, 2020
Filed:
Jun. 12, 2016
Jiangsu Hengli Chemical Fibre Co., Ltd., Suzhou, CN;
Hongwei Fan, Suzhou, CN;
Wengang Li, Suzhou, CN;
Yanfang Wang, Suzhou, CN;
Lili Wang, Suzhou, CN;
Damao Yang, Suzhou, CN;
Fangming Tang, Suzhou, CN;
Lixin Yin, Suzhou, CN;
Guangkun Song, Suzhou, CN;
JIANGSU HENGLI CHEMICAL FIBRE CO., LTD., Wujiang, CN;
Abstract
A high-modulus low-shrinkage polyester industrial yarn obtained by subjecting a polyester to dissolution, washing and solid state polycondensation followed by spinning. The high-modulus low-shrinkage polyester industrial yarn has a dry heat shrinkage rate of 2.0±0.25% under test conditions of 177° C.×10 min×0.05 cN/dtex. The average value of the crystal volume Vc of the high-modulus low-shrinkage polyester industrial yarn is larger than 230 nm3. The high-modulus low-shrinkage polyester industrial yarn has a fiber modulus of ≥100 cN/dtex. The polycondensation catalyst consists of magnesium ethylene glycol and antimony ethylene glycol, which has a small thermal degradation coefficient.