- 专利标题： Method for preparing polyetherester copolymer
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申请号： US16086415申请日： 2017-09-29
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公开(公告)号： US10683392B2公开(公告)日： 2020-06-16
- 发明人: Soo Hwan Hwang , Seong Jae Shin , Suk Yung Oh , Jeong Seok Lee , Mi Kyung Kim
- 申请人： LG CHEM, LTD.
- 申请人地址： KR Seoul
- 专利权人： LG CHEM, LTD.
- 当前专利权人： LG CHEM, LTD.
- 当前专利权人地址： KR Seoul
- 代理机构： Dentons US LLP
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@f532434
- 国际申请： PCT/KR2017/011037 WO 20170929
- 国际公布： WO2018/062965 WO 20180405
- 主分类号： C08G63/85
- IPC分类号： C08G63/85 ; C08G63/672 ; C08J11/02 ; C08G63/90
摘要：
The present invention relates to a method for preparing a polyetherester copolymer having excellent economical efficiency by recycling unreacted diol and excellent physical properties. Accordingly, the preparation method may prepare a polyetherester copolymer of high purity having excellent economical efficiency by purifying a byproduct to separate a recycle stream including unreacted diol therefrom, and reusing the recycle stream.
公开/授权文献
- US20190127521A1 METHOD FOR PREPARING POLYETHERESTER COPOLYMER 公开/授权日：2019-05-02
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