Polyether glycols and alcohols derived from 3,4-epoxy-1-butene,
tetrahydrofuran and an initiator
    31.
    发明授权
    Polyether glycols and alcohols derived from 3,4-epoxy-1-butene, tetrahydrofuran and an initiator 失效
    衍生自3,4-环氧-1-丁烯,四氢呋喃和引发剂的聚醚二醇和醇

    公开(公告)号:US5502137A

    公开(公告)日:1996-03-26

    申请号:US344905

    申请日:1994-11-25

    CPC classification number: C08G65/14 C08G65/20 C08G65/322

    Abstract: Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of tetrahydrofuran, an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise m units of residue (1), n units of residue (2), and p units of residue (3) wherein (i) residues (1), (2) and (3) have the structures: ##STR1## (ii) the total value of m+n+p is 5 to 70; (iii) the value of n/(m+n+p) is in the range of 0.2 to 0.4, i.e., residue (2) constitutes from 20 to 40 mole percent of the total moles of residues (1), (2) and (3); and (iv) at least 98 percent of the terminal groups have the structure: ##STR2##

    Abstract translation: 公开了在四氢呋喃,酸性催化剂和亲核引发剂化合物的存在下通过3,4-环氧-1-丁烯的反应或聚合获得的新型聚醚化合物。 聚醚化合物包括m个残基(1),n个残基(2)单元和p个残基(3)单元,其中(i)残基(1),(2)和(3)具有以下结构:

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