公开(公告)号：US12037448B2

公开(公告)日：2024-07-16

申请号：US17134769

申请日：2020-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Feng-Jen Hsieh ,  Kuan-Yeh Huang ,  Yen-Ming Chen ,  Yu-Chieh Chou ,  Jyh-Jian Tai ,  Liang-Che Chen

IPC: C08G63/08 ,  C08G63/183 ,  C08G63/189 ,  C08G63/685 ,  C08G63/78 ,  C08G63/85

CPC classification number: C08G63/183 ,  C08G63/08 ,  C08G63/189 ,  C08G63/685 ,  C08G63/785 ,  C08G63/85

Abstract: A method of manufacturing copolymer includes mixing and reacting a polyester, an aliphatic polyol or an aliphatic polyol oligomer, and a first catalyst in a first region of a screw to form a polyester polyol, and side-feeding a lactone or a lactam to a second region of the screw to copolymerize the lactone or a lactam and the polyester polyol to form a copolymer, wherein the first region and the second region are continuous connecting regions.