Polyurethane pressure-sensitive adhesives
    1.
    发明授权
    Polyurethane pressure-sensitive adhesives 失效
    聚氨酯压敏粘合剂

    公开(公告)号:US5910536A

    公开(公告)日:1999-06-08

    申请号:US772217

    申请日:1996-12-19

    摘要: Methods for producing poly�urethane-(meth)acrylate!-based adhesives in which an isocyanate-terminated prepolymer is reacted to convert the isocyanate terminal groups into groups capable of cross-linking with each other, excess isocyanate groups are quenched with an isocyanate group quenching compound and the resulting prepolymer is then irradiated or heated to form the polyurethane-based adhesives, and adhesives produced thereby. Alternatively, a hydroxyl-terminated prepolymer is reacted with a reagent having isocyanate and methacrylate groups to form a prepolymer which is then irradiated or heated.

    摘要翻译: 使异氰酸酯封端的预聚物反应以将异氰酸酯端基转化为能够交联的基团的聚[氨基甲酸酯 - (甲基)丙烯酸酯]基粘合剂的制备方法,过量的异氰酸酯基团用异氰酸酯基团 然后将淬火化合物和所得预聚物照射或加热以形成聚氨酯基粘合剂,以及由此制备的粘合剂。 或者,羟基封端的预聚物与具有异氰酸酯和甲基丙烯酸酯基团的试剂反应以形成预聚物,然后将其预辐射或加热。