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    • 19. 发明申请
    • Process for the preparation of polyurethane prepolymers and/or polyurethane-urea prepolymers
    • 制备聚氨酯预聚物和/或聚氨酯 - 脲预聚物的方法
    • US20050272901A1
    • 2005-12-08
    • US11143154
    • 2005-06-02
    • Gunter FrauenkronHerbert Heidingsfeld
    • Gunter FrauenkronHerbert Heidingsfeld
    • C08G18/08C08G18/10C08G18/42C08G18/16
    • C08G18/10C08G18/0895C08G18/4238
    • The present invention provides a process for the preparation of at least one of a polyurethane prepolymer and a polyurethane-urea prepolymer involving mixing in a mixing nozzle at least one diisocyanate with at least one of a polyhydroxyl compound and a polyamino compound having a molecular weight of from about 400 to about 10,000, the mixing nozzle including a first inlet, an annular nozzle channel having a substantially constant diameter, a second inlet and connected through a channel to a dwell line, wherein the first inlet is in communication with the annular nozzle channel through one or more apertures therein, introducing the polyhydroxyl compound and/or polyamino compound into the annular nozzle channel via the second inlet, injecting the diisocyanate through the one or more apertures into the polyhydroxyl compound and/or polyamino compound in the annular nozzle channel and reacting the mixture of diisocyanate and polyhydroxyl compound and/or polyamino compound in the dwell line.
    • 本发明提供一种制备聚氨酯预聚物和聚氨酯 - 脲预聚物中的至少一种的方法,包括在混合喷嘴中混合至少一种二异氰酸酯与至少一种多羟基化合物和分子量为 约400至约10,000,所述混合喷嘴包括第一入口,具有基本恒定直径的环形喷嘴通道,第二入口并且通过通道连接到停留管线,其中所述第一入口与所述环形喷嘴通道连通 通过其中的一个或多个孔,通过第二入口将多羟基化合物和/或聚氨基化合物引入环形喷嘴通道,将二异氰酸酯通过一个或多个孔注入环氧化合物和/或环氧化合物和/ 在停留线中使二异氰酸酯和多羟基化合物和/或聚氨基化合物的混合物反应 。