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公开(公告)号:US20160326316A1
公开(公告)日:2016-11-10
申请号:US15105781
申请日:2014-12-19
发明人: Suri N. DORAI
CPC分类号: C08G65/20 , C08G65/2615 , C08G65/2696 , C08G65/30 , C08G65/3312 , C08G2650/22
摘要: The present invention relates to an improved process for manufacturing polytetramethylene ether glycol. The process involves controlling the number average molecular weight of the diacetate of polytetramethylene ether glycol intermediate produced by tetrahydrofuran polymerization before methanolysis thereof to desired polytetramethylene ether glycol product.
摘要翻译: 本发明涉及一种制备聚四亚甲基醚二醇的改进方法。 该方法包括控制通过四氢呋喃聚合制备的聚四亚甲基醚二醇中间体的二乙酸酯的数均分子量,然后甲醇分解为所需的聚四亚甲基醚二醇产物。