Radiation curable acrylated polyurethane
    7.
    发明授权
    Radiation curable acrylated polyurethane 失效
    可辐射固化丙烯酸酯化聚氨酯

    公开(公告)号:US4131602A

    公开(公告)日:1978-12-26

    申请号:US837974

    申请日:1977-09-29

    CPC分类号: C08G18/672 C08G18/4009

    摘要: Radiation curable acrylated polyurethane is porduced by (a) producing an isocyanate-terminated intermediate by coreacting an organic diisocyanate with a combination of organic tri/tetraol and organic diol, said combination being chosen from polyester tri/tetraol-polyether diol and polyether tri/tetraol-polyester diol combinations; (b) reacting the isocyanate-terminated intermediate with an hydroxyacrylate such as 2-hydroxyethyl acrylate. Unexpectedly, the oligomer has desirably low viscosity, yet cures upon exposure to radiation to a coating having good physical properties.

    摘要翻译: 可辐射固化的丙烯酸酯化聚氨酯通过(a)通过与有机三元/四醇和有机二醇的组合共聚有机二异氰酸酯制备异氰酸酯封端的中间体,所述组合选自聚酯三元/四醇 - 聚醚二醇和聚醚三元/四醇 聚酯二醇组合; (b)使异氰酸酯封端的中间体与羟基丙烯酸酯如丙烯酸2-羟基乙酯反应。 出人意料地,低聚物具有期望的低粘度,但是当暴露于具有良好物理性质的涂层时,可以固化。