Compositions for forming poly(oxazolidone/urethane) thermosets and products therefrom
    1.
    发明公开
    Compositions for forming poly(oxazolidone/urethane) thermosets and products therefrom 失效
    组合物用于模制热固性聚(恶唑烷酮 - 尿烷)树脂和它们的衍生物。

    公开(公告)号:EP0077175A2

    公开(公告)日:1983-04-20

    申请号:EP82305313.7

    申请日:1982-10-06

    Abstract: A process for the production of a thermoset composition containing oxazolidone and urethane linkages characterised in that it comprises reacting a polyisocyanate and a prepolymer containing at least one terminal epoxy group and at least one non-terminal, secondary hydroxy group is disclosed.
    A thermoset composition characterised in that it comprises oxazolidone and urethane linkages in the recurring unit which is substantially free of isocyanurate linkages, the said oxazolidone linkages being present in the polymer backbone and being separated from one another by ester linkages and the said urethane linkages being present in side chains attached to the polymer backbone is also disclosed.
    The present invention offers advantages over the prior art.

    Abstract translation: 一种用于生产热固性组合物含恶唑烷酮和氨基甲酸乙酯键DASS它包括使多异氰酸酯一的和含至少一个末端环氧基的预聚物和至少一个非末端,仲羟基过程游离缺失盘。 ... 的热固性组合物DASS它包括恶唑烷酮和氨基甲酸乙酯键的重复单元的所有它基本上不含异氰脲酸酯键的,所述的恶唑烷酮键存在于聚合物主链和通过酯键和从彼此分离 因此,所述氨基甲酸酯键存在于连接到聚合物主链的侧链是游离缺失盘。 ... 本发明优于现有技术提供了优点。

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