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    • 1. 发明授权
    • Process for the production of closures for packaging containers
    • 用于生产包装容器封盖的工艺
    • US5376416A
    • 1994-12-27
    • US30157
    • 1993-04-06
    • Peter NussenSiegfried Krause
    • Peter NussenSiegfried Krause
    • C09K3/10B65D53/00
    • C09K3/1021C09K2200/023C09K2200/0239C09K2200/0243C09K2200/0685Y10T428/1352
    • The subject of the present invention is a process for the production of closures, in which process a sealing composition is applied and baked on the inside of the closures, wherein a sealing composition is applied which containsA) 20 to 95% by weight of at least one compound having on average more than two isocyanate groups per molecule and/or of a diisocyanate prepolymer, the isocyanate groups being blocked,B) 1.5 to 30% by weight of at least one diamine and/or polyamine,C) 0 to 78.5% by weight of at least one plastic and/or elastic and/or reactive organic polymer,D) 0 to 60% by weight of pigments and/or fillers,E) 0 to 50% by weight of one or more reactive diluents andF) 0 to 20% by weight of auxiliaries and additives, the sum of the proportions by weight of the components A to F being 100% in each case.The present invention also relates to the closures produced by the process according to the invention and to packaging containers which contain said closures.
    • PCT No.PCT / EP91 / 01345 Sec。 371日期:1993年4月6日 102(e)日期1993年4月6日PCT 1991年7月18日PCT公布。 第WO92 / 02592号公报 日本1992年2月20日。本发明的主题是一种用于生产封闭件的方法,其中密封组合物在封闭件的内部被施加和烘烤,其中施加密封组合物,其包含A)20 至少95重量%的至少一种每分子平均具有多于两个异氰酸酯基团的化合物和/或二异氰酸酯预聚物,异氰酸酯基团被封闭,B)1.5至30重量%的至少一种二胺和/或 多胺,C)0至78.5重量%的至少一种塑料和/或弹性和/或反应性有机聚合物,D)0至60重量%的颜料和/或填料,E)0至50重量% 一种或多种反应性稀释剂和F)0至20重量%的助剂和添加剂,在每种情况下组分A至F的重量比例之和为100%。 本发明还涉及通过根据本发明的方法生产的封闭件和包含所述封闭件的包装容器。