公开(公告)号：US20240400746A1

公开(公告)日：2024-12-05

申请号：US18393589

申请日：2023-12-21

Applicant: Industrial Technology Research Institute

Inventor： Ying-Chen Liao ,  De-Lun Kuo ,  Hsu-Tzu Fan ,  Wei-Cheng Tang ,  Cheng-Jyun Huang ,  Shin-Liang Kuo

IPC: C08G18/48 ,  C08G63/181 ,  C08G63/82 ,  C08J11/24

Abstract: A polyurethane and a preparation method thereof are provided. The polyurethane is represented by Formula 1. The preparation method of the polyurethane includes performing an addition reaction between a polyester-polyether polyol represented by the Formula 4 and a di-isocyanate. The formed polyurethane has high elasticity and high moisture-permeable properties.

公开(公告)号：US20220315692A1

公开(公告)日：2022-10-06

申请号：US17399059

申请日：2021-08-11

Applicant: Industrial Technology Research Institute

Inventor： Ying-Chen Liao ,  Hsu-Tzu Fan

IPC: C08G18/75 ,  C08G18/42 ,  C08G18/48 ,  C08G18/34 ,  C08G18/66 ,  C08G18/40

Abstract: Provided is a waterborne polyurethane obtained by polymerizing an alicyclic polyester polyol, a diisocyanate, and a hydrophilic chain extender. The alicyclic polyester polyol includes an alicyclic polyester polyol having a four-membered ring and/or an alicyclic polyester polyol having a six-membered ring. Based on a usage amount of 1 part by weight of the alicyclic polyester polyol having a four-membered ring and/or a six-membered ring, a usage amount of the diisocyanate is between 0.3 parts by weight and 12 parts by weight, and a usage amount of the hydrophilic chain extender is between 0.05 parts by weight and 1.5 parts by weight.