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:
Dec. 17, 2024
Filed:
Nov. 20, 2019
Zhejiang Nhu Special Materials Co., Ltd., Zheijang, CN;
Zhejiang Nhu Co., Ltd., Shaoxing, CN;
Zhirong Chen, Zhejiang, CN;
Hong Yin, Zhejiang, CN;
Hangjun Deng, Zhejiang, CN;
Guiyang Zhou, Zhejiang, CN;
Danqi Zhu, Zhejiang, CN;
Xiaoxiao Wu, Zhejiang, CN;
Wengang Hong, Zhejiang, CN;
Guisheng Qiu, Zhejiang, CN;
Qichuan Li, Zhejiang, CN;
ZHEJIANG NHU SPECIAL MATERIALS CO., LTD., Zhejiang, CN;
ZHEJIANG NHU CO., LTD., Zhejiang, CN;
Abstract
The present disclosure discloses a semi-aromatic polyamide and a preparation method therefor. The semi-aromatic polyamide is obtained by polymerization reaction using a diamine, a dibasic acid and a monoacid as main raw materials while adding a special end-capping agent. The semi-aromatic polyamide prepared according to the present disclosure has good thermal stability, a yellowness index of less than 20, a glass transition temperature of 90° C. or above, and a melting point of 300° C. or above, and can be applied to spare parts for fuel pipelines in automobiles, and electronic and electrical industries such as LED panels.