Process for producing saturated polyether glycols and alcohols derived
from 3, 4-epoxy-1-butene
    19.
    发明授权
    Process for producing saturated polyether glycols and alcohols derived from 3, 4-epoxy-1-butene 失效
    制备由3,4-环氧-1-丁烯衍生的饱和聚醚二醇和醇的方法

    公开(公告)号:US5608117A

    公开(公告)日:1997-03-04

    申请号:US520356

    申请日:1995-08-28

    CPC classification number: C08G65/14 C08G65/322

    Abstract: Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures: ##STR1## (ii) the total value of n+m is 2 to 70 and m/(n+m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure: ##STR2## The polyethers are obtained by first polymerizing 3,4-epoxy-l-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures: ##STR3## and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.

    Abstract translation: 公开了由n个残基(1)和m个残基(2)组成的新型饱和聚醚化合物,其中(i)残基(1)和(2)具有以下结构:(1)和OCH 2 CH 2 CH 2 CH 2 )(ii)n + m的总值为2〜70,m /(n + m)为0.05〜0.98; (ii)聚醚的末端羟基的至少98%具有以下结构:聚醚是通过首先聚合3,4-环氧-1-丁烯制备不饱和聚醚前体而得到的,其包含残基(1A)和( 2A),其结构如下:(1A)OCH2CHCHCH2(2A),然后氢化不饱和聚醚前体。 氢化有利地在镍氢化催化剂存在下进行。

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