Radiation curable acrylated polyurethane
    2.
    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。

    Two-step coating process
    5.
    发明授权
    Two-step coating process 失效
    两步涂装工艺

    公开(公告)号:US3935330A

    公开(公告)日:1976-01-27

    申请号:US205855

    申请日:1971-12-08

    摘要: Coating compositions are cured by initially treating them for a brief period with ionizing or non-ionizing radiation whereby they are partially cured and then completing the cure by a thermal treatment. This two-step process decreases the amount of volatiles escaping into the atmosphere and it also permits the use of compounds not useful in the past and allows significant improvement in film properties such as adhesion to metal. The initial radiation cure can be with electron beam, ultraviolet mercury lamp, plasma arc or other radiation means; the thermal cure is carried out by any heat means.

    摘要翻译: 通过用电离或非电离辐射初步处理它们来固化涂料组合物,由此它们被部分固化,然后通过热处理完成固化。 这两步法减少挥发物逃逸到大气中的量,并且还允许使用过去无用的化合物,并且可以显着地提高薄膜性质,例如对金属的附着。 初始辐射固化可以是电子束,紫外线汞灯,等离子弧或其他辐射手段; 热固化通过任何加热方式进行。