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. 25, 2024
Filed:
Apr. 18, 2023
Applicant:
SK Chemicals Co., Ltd., Gyeonggi-do, KR;
Inventors:
Da-Young Hwang, Gyeonggi-do, KR;
Sangwoo Kim, Gyeonggi-do, KR;
Ha-Neul Kim, Gyeonggi-do, KR;
Boo-Youn Lee, Gyeonggi-do, KR;
Assignee:
SK CHEMICALS CO., LTD., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/06 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29K 67/00 (2006.01); C08G 63/183 (2006.01); C08G 63/199 (2006.01); C08G 63/664 (2006.01); C08G 63/85 (2006.01); C08L 67/03 (2006.01);
U.S. Cl.
CPC ...
C08G 63/065 (2013.01); B29C 48/022 (2019.02); B29C 48/08 (2019.02); C08G 63/183 (2013.01); C08G 63/199 (2013.01); C08G 63/664 (2013.01); C08G 63/85 (2013.01); C08L 67/03 (2013.01); B29K 2067/04 (2013.01); C08L 2201/08 (2013.01); C08L 2207/20 (2013.01);
Abstract
A polyester resin comprising regenerated BHET according to an embodiment has excellent heat resistance characteristics since a diethylene glycol generated from the regenerated BHET to remain in the polyester resin is adjusted to a predetermined level or less, so that the polyester resin can be manufactured into a heat-shrinkable film.