专利检索 ap:("SK CHEMICALS CO., LTD.") AND inv:"Kwang-Woo Park" 第 1 页

1.

发明授权
Method for purifying bis-2-hydroxylethyl terephthalate and polyester resin comprising same 有权

公开(公告)号：US12077634B2

公开(公告)日：2024-09-03

申请号：US18248812

申请日：2021-09-14

申请人： SK CHEMICALS CO., LTD.

发明人： Da-Young Hwang , Kwang-Woo Park , Yoo Jin Lee , Jong-In Lee

IPC分类号： C08G63/78 , C07C67/56 , C08G63/672

CPC分类号： C08G63/672 , C07C67/56 , C08G63/78

摘要： The present disclosure relates to a method for purifying bis-2-hydroxyethyl terephthalate with high purity and a polyester resin containing the same.