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    Copolyamide active-passive oxygen barrier resins
    15.
    发明授权
    Copolyamide active-passive oxygen barrier resins 有权
    共聚酰胺主动 - 被动氧阻隔树脂

    公开(公告)号：US06506463B1

    公开(公告)日：2003-01-14

    申请号：US09485475

    申请日：2000-02-11

    申请人： Paul J. Cahill ,  Joel Albert Richardson ,  Raymond V. Wass

    发明人： Paul J. Cahill ,  Joel Albert Richardson ,  Raymond V. Wass

    IPC分类号： B29D2200

    CPC分类号： B32B27/36 ,  B65D1/0215 ,  B65D81/266 ,  Y10T428/1352 ,  Y10T428/31725

    摘要： Compositions for scavenging oxygen are disclosed. These compositions comprise copolyamides comprising over 50 weight percent polyamide segments and an active oxygen scavenging amount of polyolefin oligomer segments. The polyamide segments comprise segments derived from typical bottling and packaging polyamides such as polyhexamethyleneadipamide and polyphthalamides. The copolymers are preferably formed by transesterification during reactive extrusion and typically comprise about 0.5 to about 12 wt. % of polyolefin oligomer segments. The copolyamides provide enhanced active and passive oxygen barrier properties over similar polyester constructions and similar polyamide constructions, when used in a laminar construction. In a series of preferred embodiments, multi-layered bottles fabricated with the oxygen scavenging copolyatnides of this invention are about 99.8 wt. % polyamide and suitable for recycle with other polyamide bottles.

    摘要翻译： 公开了用于清除氧气的组合物。 这些组合物包含包含超过50重量％的聚酰胺链段和活性氧清除量的聚烯烃低聚物链段的共聚酰胺。 聚酰胺链段包含衍生自典型的装瓶和包装聚酰胺如聚六亚甲基己二酰胺和聚邻苯二甲酰胺的链段。 共聚物优选通过在反应性挤出期间的酯交换形成，并且通常包含约0.5至约12wt。 ％的聚烯烃低聚物片段。 当在层状结构中使用时，共聚酰胺比类似的聚酯结构和类似的聚酰胺结构提供增强的主动和被动氧阻隔性能。 在一系列优选实施方案中，用本发明的除氧共聚酯制造的多层瓶约为99.8wt。 ％聚酰胺，适合与其他聚酰胺瓶循环使用。