公开(公告)号：US20210347946A1

公开(公告)日：2021-11-11

申请号：US17216868

申请日：2021-03-30

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Hui-Min WANG ,  Jiun-Jy CHEN ,  Hung-Jen LIU ,  Hsin-Ching KAO

IPC: C08G69/28 ,  C08L77/06

Abstract: A method of forming a copolymer includes reacting with to form a salt. x parts by mole of the salt with y parts by mole of are reacted to form the copolymer having a chemical structure as wherein m=4-10, n=4-6, and x:y=1:9 to 4:6. The copolymer may have a relative viscosity of 1.5 to 4.0.

公开(公告)号：US20240209569A1

公开(公告)日：2024-06-27

申请号：US18302873

申请日：2023-04-19

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chung-Yang CHUANG ,  Chih-An CHEN ,  Min-Yan DONG ,  Chang-Jung CHANG ,  Hui-Min WANG

IPC: D06P5/13 ,  D06P3/52

CPC classification number: D06P5/131 ,  D06P3/52 ,  D06P5/132

Abstract: A method for decolorizing polyester fabric and a polyester fabric are provided. The method for decolorizing polyester fabric includes providing a dye-attached polyester fabric. The dye-attached polyester fabric is immersed in a first solution, obtaining a treated polyester fabric. The treated polyester fabric is immersed in a second solution, to obtain a decolorized polyester fabric. The first solution includes water, a first swelling agent and a solubility promoter. The second solution includes water, a second swelling agent, and an auxiliary swelling agent.