Polyesters with low molecular weight additives for improved gas barrier properties
    3.
    发明授权
    Polyesters with low molecular weight additives for improved gas barrier properties 有权
    具有低分子量添加剂的聚酯以改善气体阻隔性能

    公开(公告)号:US08377530B2

    公开(公告)日:2013-02-19

    申请号:US13023184

    申请日:2011-02-08

    IPC分类号: B29D22/00 B29D23/00 B32B1/08

    摘要: Disclosed is a polyester polymer composition comprising at least one polyethylene terephthalate polyester in an amount ranging from 94.0 weight percent to 99.5 weight percent and at least one additive in an amount ranging from 0.5 weight percent to 6 weight percent, each based on the total weight of the polyester composition. The at least one additive comprises a diamide molecule. The composition of the present invention is useful in producing shaped articles such as, for example, sheeting, films, tubes, bottles, preforms, and profiles. These articles can exhibit improved gas barrier properties. The process for making the polymer composition and the shaped articles is also disclosed.

    摘要翻译: 公开了一种聚酯聚合物组合物,其包含至少一种量为94.0重量%至99.5重量%的聚对苯二甲酸乙二醇酯聚酯和至少一种量为0.5重量%至6重量%的添加剂,各自基于 聚酯组合物。 所述至少一种添加剂包含二酰胺分子。 本发明的组合物可用于制造成形制品,例如片材,薄膜,管,瓶,预成型件和型材。 这些制品可以表现出改进的阻气性能。 还公开了制备聚合物组合物和成型制品的方法。