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. 07, 2026
Filed:
Aug. 13, 2020
Kinte Materials Science and Technology Co., Ltd., Guangdong, CN;
Xiaoxue Niu, Guangdong, CN;
Zhiping MA, Guangdong, CN;
Li Zeng, Guangdong, CN;
Jing Xie, Guangdong, CN;
Yong Li, Guangdong, CN;
KINTE MATERIALS SCIENCE AND TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
A hydroxyl-terminated polyester resin, a preparation method therefor and use thereof. The hydroxyl-terminated polyester resin is composed of the following raw materials in parts by mass: 25-50 parts of a diol, 40-70 parts of a dibasic acid, 0.1-2 parts of glycidyl tertcarbonate, 0.5-4 parts of a hydroxylation reagent, 0.08-0.3 parts of a catalyst and 0.2-0.5 parts of an antioxidant. The acid value of the polyester resin is 1-8 mgKOH/g, the hydroxyl value is 20-30 mgKOH/g, the melt viscosity at 200° C. is 9000-13000 mPa·s, the reactivity at 180° C. is 410-520 s, the glass transition temperature is 53-59° C., and the softening point is 101-106° C.