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:
Aug. 20, 2024
Filed:
May. 10, 2022
National Tsing Hua University, Hsinchu, TW;
Chang Chun Plastics Co., Ltd., Taipei, TW;
Chang Chun Petrochemical Co., Ltd., Taipei, TW;
Dairen Chemical Corp., Taipei, TW;
Yi-Chou Tsai, Hsinchu, TW;
John Di Yi Ou, Houston, TX (US);
Chuan-Sheng Huang, Hsinchu, TW;
Yung-Sheng Lin, Taipei, TW;
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
CHANG CHUN PLASTICS CO., LTD., Taipei, TW;
CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;
DAIREN CHEMICAL CORP., Taipei, TW;
Abstract
A titanium catalyst and a synthesizing method of polyester resins are provided in the present disclosure. The titanium catalyst has a chemical structure represented by Formula (I), Formula (II) or Formula (III). The symbols shown in the Formula (I), the Formula (II) or the Formula (III) are defined in the description. The synthesizing method of polyester resins includes providing the titanium catalyst, performing a feeding step, performing a heating and pressurizing step and performing a heating and vacuuming step. The titanium catalyst and a heat stabilizer are added into an autoclave before the feeding step or before the heating and vacuuming step.