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US07361793B2 Method for producing tetrahydrofuran copolymers 失效
生产四氢呋喃共聚物的方法

Method for producing tetrahydrofuran copolymers
摘要:
The present invention relates to a process for the single-stage preparation of polyoxyalkylene glycols by copolymerization of THF and alpha, omega-diols in the presence of a heteropolyacid, wherein the content of organically bound nitrogen in the alpha, omega-diol is less than 15 ppm.
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