公开(公告)号：WO2013112785A1

公开(公告)日：2013-08-01

申请号：PCT/US2013/023055

申请日：2013-01-25

Applicant: INVISTA NORTH AMERICA S.A.R.L.

Inventor： DORAI, Suri, N. ,  HAMILTON, Clive, Alexander ,  SUN, Qun

IPC: C08G65/20 ,  C08G65/30

CPC classification number: C08G65/00 ,  C08G65/20 ,  C08G65/30 ,  C08G65/32 ,  Y02P20/127

Abstract: The present invention provides an improved process for converting a diester of polyether polyol, e.g., PTMEA, to the corresponding dihydroxy product, e.g., polytetramethylene ether glycol (PTMEG) continuously in a reaction zone, such as, for example, a reactive distillation system, for achieving virtually complete conversion of PTMEA to PTMEG, and recovery of PTMEG free of unreacted or unconverted PTMEA and alkanol ester by-product.

Abstract translation: 本发明提供了一种改进的方法，其将聚醚多元醇例如PTMEA的二酯在反应区（例如反应蒸馏系统）中连续转化成相应的二羟基产物，例如聚四亚甲基醚二醇（PTMEG） 用于实现PTMEA到PTMEG的几乎完全转化，以及没有未反应或未转化的PTMEA和链烷醇酯副产物的PTMEG的回收。

公开(公告)号：EP3362513A1

公开(公告)日：2018-08-22

申请号：EP16788313.1

申请日：2016-10-11

Applicant: Invista North America S.a.r.l.

Inventor： BAYER, Uwe ,  BERBERICH, David W. ,  JONES, JR., Robert L. ,  NEUBIG, Anne ,  SUN, Qun

IPC: C08L9/00 ,  C08L23/06 ,  C08L23/12

CPC classification number: C08L9/00 ,  C08K5/098 ,  C08L23/06 ,  C08L23/12 ,  C08L51/06 ,  C08L77/06 ,  C08L77/00 ,  C08L71/00 ,  C08L67/025

Abstract: The present invention relates to novel polymer compositions and their use in polyolefin resins. Films and rigid or semi-ridged articles made from these novel polymer compositions provide improved oxygen and/or carbon dioxide barrier protections.