US 12,037,448 B2
Copolymer and method of manufacturing the same
Feng-Jen Hsieh, Kaohsiung (TW); Kuan-Yeh Huang, Chiayi (TW); Yen-Ming Chen, New Taipei (TW); Yu-Chieh Chou, Zhudong Township (TW); Jyh-Jian Tai, Hsinchu (TW); and Liang-Che Chen, Fuxing Township (TW)
Assigned to INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed by INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed on Dec. 28, 2020, as Appl. No. 17/134,769.
Claims priority of application No. 109134376 (TW), filed on Oct. 5, 2020.
Prior Publication US 2022/0106439 A1, Apr. 7, 2022
Int. Cl. C08G 63/08 (2006.01); C08G 63/183 (2006.01); C08G 63/189 (2006.01); C08G 63/685 (2006.01); C08G 63/78 (2006.01); C08G 63/85 (2006.01)
CPC C08G 63/183 (2013.01) [C08G 63/08 (2013.01); C08G 63/189 (2013.01); C08G 63/685 (2013.01); C08G 63/785 (2013.01); C08G 63/85 (2013.01)] 18 Claims
 
1. A copolymer, being:
formed by copolymerizing lactone or lactam with a polyester polyol,
wherein the polyester polyol is formed by reacting a polyester with an aliphatic polyol or an aliphatic polyol oligomer in the presence of a first catalyst,
wherein the aliphatic polyol is not present in the polyester, and
wherein the polyester comprises polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyethylene naphthalate, polybutylene naphthalate, polybutyrate-adipate-terephthalate, or a combination thereof.