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:
Apr. 14, 2025
Filed:
Mar. 02, 2023
Applicant:
SK Chemicals Co., Ltd., Gyeonggi-do, KR;
Inventors:
Da-Young Hwang, Gyeonggi-do, KR;
Ji-Hun Kim, Gyeonggi-do, KR;
Kwang-Woo Park, Gyeonggi-do, KR;
Yoo Jin Lee, Gyeonggi-do, KR;
Joong Ki Lee, Gyeonggi-do, KR;
Assignee:
SK CHEMICALS CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 11/24 (2005.12); C08G 63/183 (2005.12);
U.S. Cl.
CPC ...
C08J 11/24 (2012.12); C08G 63/183 (2012.12); C08J 2367/02 (2012.12);
Abstract
This polyester resin comprises a bis(2-hydroxyethyl)terephthalate monomer which is obtained by depolymerization of waste polyester and which has a diethylene glycol ester content adjusted to be a certain level or less. The polyester resin, despite of being a recycled resin, has the same level of quality as the original resin and thus can be used in manufacturing articles in various fields.