	US 12,264,244 B2
	Polyester resin blend
Da-Young Hwang, Gyeonggi-do (KR); and Yoo Jin Lee, Gyeonggi-do (KR)
Assigned to SK Chemicals CO., Ltd., Gyeonggi-do (KR)
Appl. No. 17/613,859
Filed by SK CHEMICALS CO., LTD., Gyeonggi-do (KR)
PCT Filed May 28, 2020, PCT No. PCT/KR2020/006925 § 371(c)(1), (2) Date Nov. 23, 2021, PCT Pub. No. WO2021/040194, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10-2019-0105176 (KR), filed on Aug. 27, 2019; and application No. 10-2020-0062919 (KR), filed on May 26, 2020.
Prior Publication US 2022/0227992 A1, Jul. 21, 2022
Int. Cl. C08L 67/02 (2006.01)

CPC C08L 67/02 (2013.01) [C08L 2205/02 (2013.01)]

12 Claims

1. A polyester resin blend, comprising:

recycled polyethylene terephthalate;

a first polyester resin having a structure in which an acid moiety derived from a dicarboxylic acid or a derivative thereof and a diol moiety derived from a diol containing ethylene glycol and isosorbide; and

a second polyester resin having a structure in which an acid moiety derived from a dicarboxylic acid or a derivative thereof and a diol moiety derived from a diol containing cyclohexanedimethanol,

wherein the first polyester resin and the second polyester resin are newly prepared.