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:
Jun. 30, 2026
Filed:
Mar. 23, 2023
Applicant:
SK Chemicals Co., Ltd., Gyeonggi-do, KR;
Inventors:
Young-Man Yoo, Gyeonggi-do, KR;
Eun-Yeong Hwang, Gyeonggi-do, KR;
Assignee:
SK CHEMICALS CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/03 (2006.01); C08G 63/06 (2006.01); C08J 11/24 (2006.01);
U.S. Cl.
CPC ...
C07C 67/03 (2013.01); C08G 63/06 (2013.01); C08J 11/24 (2013.01); C08J 2367/06 (2013.01);
Abstract
Through a transesterification reaction in which a predetermined amount of bis(2-hydroxyethyl)terephthalate relative to glycol is fed in a divided or continuous manner, bis(glycol)terephthalate with a low residual amount of an ethylene glycol derivative is prepared, and polyester engineering products or biodegradable polyester products with high crystallinity can be produced therefrom.
Yoo, Young-Man. (2026). Method for preparing bis(glycol)terephthalate and polyester resin using same (U.S. Patent No. 12668564). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12668564
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile